---
_id: '12574'
abstract:
- lang: eng
text: Melt from supraglacial ice cliffs is an important contributor to the mass
loss of debris-covered glaciers. However, ice cliff contribution is difficult
to quantify as they are highly dynamic features, and the paucity of observations
of melt rates and their variability leads to large modelling uncertainties. We
quantify monsoon season melt and 3D evolution of four ice cliffs over two debris-covered
glaciers in High Mountain Asia (Langtang Glacier, Nepal, and 24K Glacier, China)
at very high resolution using terrestrial photogrammetry applied to imagery captured
from time-lapse cameras installed on lateral moraines. We derive weekly flow-corrected
digital elevation models (DEMs) of the glacier surface with a maximum vertical
bias of ±0.2 m for Langtang Glacier and ±0.05 m for 24K Glacier and use change
detection to determine distributed melt rates at the surfaces of the ice cliffs
throughout the study period. We compare the measured melt patterns with those
derived from a 3D energy balance model to derive the contribution of the main
energy fluxes. We find that ice cliff melt varies considerably throughout the
melt season, with maximum melt rates of 5 to 8 cm d−1, and their average melt
rates are 11–14 (Langtang) and 4.5 (24K) times higher than the surrounding debris-covered
ice. Our results highlight the influence of redistributed supraglacial debris
on cliff melt. At both sites, ice cliff albedo is influenced by the presence of
thin debris at the ice cliff surface, which is largely controlled on 24K Glacier
by liquid precipitation events that wash away this debris. Slightly thicker or
patchy debris reduces melt by 1–3 cm d−1 at all sites. Ultimately, our observations
show a strong spatio-temporal variability in cliff area at each site, which is
controlled by supraglacial streams and ponds and englacial cavities that promote
debris slope destabilisation and the lateral expansion of the cliffs. These findings
highlight the need to better represent processes of debris redistribution in ice
cliff models, to in turn improve estimates of ice cliff contribution to glacier
melt and the long-term geomorphological evolution of debris-covered glacier surfaces.
article_processing_charge: No
article_type: original
author:
- first_name: Marin
full_name: Kneib, Marin
last_name: Kneib
- first_name: Evan S.
full_name: Miles, Evan S.
last_name: Miles
- first_name: Pascal
full_name: Buri, Pascal
last_name: Buri
- first_name: Stefan
full_name: Fugger, Stefan
last_name: Fugger
- first_name: Michael
full_name: McCarthy, Michael
last_name: McCarthy
- first_name: Thomas E.
full_name: Shaw, Thomas E.
last_name: Shaw
- first_name: Zhao
full_name: Chuanxi, Zhao
last_name: Chuanxi
- first_name: Martin
full_name: Truffer, Martin
last_name: Truffer
- first_name: Matthew J.
full_name: Westoby, Matthew J.
last_name: Westoby
- first_name: Wei
full_name: Yang, Wei
last_name: Yang
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
citation:
ama: Kneib M, Miles ES, Buri P, et al. Sub-seasonal variability of supraglacial
ice cliff melt rates and associated processes from time-lapse photogrammetry.
The Cryosphere. 2022;16(11):4701-4725. doi:10.5194/tc-16-4701-2022
apa: Kneib, M., Miles, E. S., Buri, P., Fugger, S., McCarthy, M., Shaw, T. E., …
Pellicciotti, F. (2022). Sub-seasonal variability of supraglacial ice cliff melt
rates and associated processes from time-lapse photogrammetry. The Cryosphere.
Copernicus Publications. https://doi.org/10.5194/tc-16-4701-2022
chicago: Kneib, Marin, Evan S. Miles, Pascal Buri, Stefan Fugger, Michael McCarthy,
Thomas E. Shaw, Zhao Chuanxi, et al. “Sub-Seasonal Variability of Supraglacial
Ice Cliff Melt Rates and Associated Processes from Time-Lapse Photogrammetry.”
The Cryosphere. Copernicus Publications, 2022. https://doi.org/10.5194/tc-16-4701-2022.
ieee: M. Kneib et al., “Sub-seasonal variability of supraglacial ice cliff
melt rates and associated processes from time-lapse photogrammetry,” The Cryosphere,
vol. 16, no. 11. Copernicus Publications, pp. 4701–4725, 2022.
ista: Kneib M, Miles ES, Buri P, Fugger S, McCarthy M, Shaw TE, Chuanxi Z, Truffer
M, Westoby MJ, Yang W, Pellicciotti F. 2022. Sub-seasonal variability of supraglacial
ice cliff melt rates and associated processes from time-lapse photogrammetry.
The Cryosphere. 16(11), 4701–4725.
mla: Kneib, Marin, et al. “Sub-Seasonal Variability of Supraglacial Ice Cliff Melt
Rates and Associated Processes from Time-Lapse Photogrammetry.” The Cryosphere,
vol. 16, no. 11, Copernicus Publications, 2022, pp. 4701–25, doi:10.5194/tc-16-4701-2022.
short: M. Kneib, E.S. Miles, P. Buri, S. Fugger, M. McCarthy, T.E. Shaw, Z. Chuanxi,
M. Truffer, M.J. Westoby, W. Yang, F. Pellicciotti, The Cryosphere 16 (2022) 4701–4725.
date_created: 2023-02-20T08:09:42Z
date_published: 2022-11-11T00:00:00Z
date_updated: 2023-02-28T13:59:22Z
day: '11'
doi: 10.5194/tc-16-4701-2022
extern: '1'
intvolume: ' 16'
issue: '11'
keyword:
- Earth-Surface Processes
- Water Science and Technology
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.5194/tc-16-4701-2022
month: '11'
oa: 1
oa_version: Published Version
page: 4701-4725
publication: The Cryosphere
publication_identifier:
issn:
- 1994-0424
publication_status: published
publisher: Copernicus Publications
quality_controlled: '1'
scopus_import: '1'
status: public
title: Sub-seasonal variability of supraglacial ice cliff melt rates and associated
processes from time-lapse photogrammetry
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 16
year: '2022'
...
---
_id: '12578'
abstract:
- lang: eng
text: "Currently, about 12 %–13 % of High Mountain Asia’s glacier area is debris-covered,
which alters its surface mass balance. However, in regional-scale modelling approaches,
debris-covered glaciers are typically treated as clean-ice glaciers, leading to
a bias when modelling their future evolution. Here, we present a new approach
for modelling debris area and thickness evolution, applicable from single glaciers
to the global scale. We derive a parameterization and implement it as a module
into the Global Glacier Evolution Model (GloGEMflow), a combined mass-balance
ice-flow model. The module is initialized with both glacier-specific observations
of the debris' spatial distribution and estimates of debris thickness. These data
sets account for the fact that debris can either enhance or reduce surface melt
depending on thickness. Our model approach also enables representing the spatiotemporal
evolution of debris extent and thickness. We calibrate and evaluate the module
on a selected subset of glaciers and apply GloGEMflow using different climate
scenarios to project the future evolution of all glaciers in High Mountain Asia
until 2100. Explicitly accounting for debris cover has only a minor effect on
the projected mass loss, which is in line with previous projections. Despite this
small effect, we argue that the improved process representation is of added value
when aiming at capturing intra-glacier scales, i.e. spatial mass-balance distribution.\r\nDepending
on the climate scenario, the mean debris-cover fraction is expected to increase,
while mean debris thickness is projected to show only minor changes, although
large local thickening is expected. To isolate the influence of explicitly accounting
for supraglacial debris cover, we re-compute glacier evolution without the debris-cover
module. We show that glacier geometry, area, volume, and flow velocity evolve
differently, especially at the level of individual glaciers. This highlights the
importance of accounting for debris cover and its spatiotemporal evolution when
projecting future glacier changes."
article_processing_charge: No
article_type: original
author:
- first_name: Loris
full_name: Compagno, Loris
last_name: Compagno
- first_name: Matthias
full_name: Huss, Matthias
last_name: Huss
- first_name: Evan Stewart
full_name: Miles, Evan Stewart
last_name: Miles
- first_name: Michael James
full_name: McCarthy, Michael James
last_name: McCarthy
- first_name: Harry
full_name: Zekollari, Harry
last_name: Zekollari
- first_name: Amaury
full_name: Dehecq, Amaury
last_name: Dehecq
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
- first_name: Daniel
full_name: Farinotti, Daniel
last_name: Farinotti
citation:
ama: 'Compagno L, Huss M, Miles ES, et al. Modelling supraglacial debris-cover evolution
from the single-glacier to the regional scale: An application to High Mountain
Asia. The Cryosphere. 2022;16(5):1697-1718. doi:10.5194/tc-16-1697-2022'
apa: 'Compagno, L., Huss, M., Miles, E. S., McCarthy, M. J., Zekollari, H., Dehecq,
A., … Farinotti, D. (2022). Modelling supraglacial debris-cover evolution from
the single-glacier to the regional scale: An application to High Mountain Asia.
The Cryosphere. Copernicus Publications. https://doi.org/10.5194/tc-16-1697-2022'
chicago: 'Compagno, Loris, Matthias Huss, Evan Stewart Miles, Michael James McCarthy,
Harry Zekollari, Amaury Dehecq, Francesca Pellicciotti, and Daniel Farinotti.
“Modelling Supraglacial Debris-Cover Evolution from the Single-Glacier to the
Regional Scale: An Application to High Mountain Asia.” The Cryosphere.
Copernicus Publications, 2022. https://doi.org/10.5194/tc-16-1697-2022.'
ieee: 'L. Compagno et al., “Modelling supraglacial debris-cover evolution
from the single-glacier to the regional scale: An application to High Mountain
Asia,” The Cryosphere, vol. 16, no. 5. Copernicus Publications, pp. 1697–1718,
2022.'
ista: 'Compagno L, Huss M, Miles ES, McCarthy MJ, Zekollari H, Dehecq A, Pellicciotti
F, Farinotti D. 2022. Modelling supraglacial debris-cover evolution from the single-glacier
to the regional scale: An application to High Mountain Asia. The Cryosphere. 16(5),
1697–1718.'
mla: 'Compagno, Loris, et al. “Modelling Supraglacial Debris-Cover Evolution from
the Single-Glacier to the Regional Scale: An Application to High Mountain Asia.”
The Cryosphere, vol. 16, no. 5, Copernicus Publications, 2022, pp. 1697–718,
doi:10.5194/tc-16-1697-2022.'
short: L. Compagno, M. Huss, E.S. Miles, M.J. McCarthy, H. Zekollari, A. Dehecq,
F. Pellicciotti, D. Farinotti, The Cryosphere 16 (2022) 1697–1718.
date_created: 2023-02-20T08:10:09Z
date_published: 2022-05-05T00:00:00Z
date_updated: 2023-02-28T13:47:17Z
day: '05'
doi: 10.5194/tc-16-1697-2022
extern: '1'
intvolume: ' 16'
issue: '5'
keyword:
- Earth-Surface Processes
- Water Science and Technology
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.5194/tc-16-1697-2022
month: '05'
oa: 1
oa_version: Published Version
page: 1697-1718
publication: The Cryosphere
publication_identifier:
issn:
- 1994-0424
publication_status: published
publisher: Copernicus Publications
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Modelling supraglacial debris-cover evolution from the single-glacier to the
regional scale: An application to High Mountain Asia'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 16
year: '2022'
...
---
_id: '12579'
abstract:
- lang: eng
text: "The Indian and East Asian summer monsoons shape the melt and accumulation
patterns of glaciers in High Mountain Asia in complex ways due to the interaction
of persistent cloud cover, large temperature ranges, high atmospheric water content
and high precipitation rates. Glacier energy- and mass-balance modelling using
in situ measurements offers insights into the ways in which surface processes
are shaped by climatic regimes. In this study, we use a full energy- and mass-balance
model and seven on-glacier automatic weather station datasets from different parts
of the Central and Eastern Himalaya to investigate how monsoon conditions influence
the glacier surface energy and mass balance. In particular, we look at how debris-covered
and debris-free glaciers respond differently to monsoonal conditions.\r\nThe radiation
budget primarily controls the melt of clean-ice glaciers, but turbulent fluxes
play an important role in modulating the melt energy on debris-covered glaciers.
The sensible heat flux decreases during core monsoon, but the latent heat flux
cools the surface due to evaporation of liquid water. This interplay of radiative
and turbulent fluxes causes debris-covered glacier melt rates to stay almost constant
through the different phases of the monsoon. Ice melt under thin debris, on the
other hand, is amplified by both the dark surface and the turbulent fluxes, which
intensify melt during monsoon through surface heating and condensation.\r\nPre-monsoon
snow cover can considerably delay melt onset and have a strong impact on the seasonal
mass balance. Intermittent monsoon snow cover lowers the melt rates at high elevation.
This work is fundamental to the understanding of the present and future Himalayan
cryosphere and water budget, while informing and motivating further glacier- and
catchment-scale research using process-based models."
article_processing_charge: No
article_type: original
author:
- first_name: Stefan
full_name: Fugger, Stefan
last_name: Fugger
- first_name: Catriona L.
full_name: Fyffe, Catriona L.
last_name: Fyffe
- first_name: Simone
full_name: Fatichi, Simone
last_name: Fatichi
- first_name: Evan
full_name: Miles, Evan
last_name: Miles
- first_name: Michael
full_name: McCarthy, Michael
last_name: McCarthy
- first_name: Thomas E.
full_name: Shaw, Thomas E.
last_name: Shaw
- first_name: Baohong
full_name: Ding, Baohong
last_name: Ding
- first_name: Wei
full_name: Yang, Wei
last_name: Yang
- first_name: Patrick
full_name: Wagnon, Patrick
last_name: Wagnon
- first_name: Walter
full_name: Immerzeel, Walter
last_name: Immerzeel
- first_name: Qiao
full_name: Liu, Qiao
last_name: Liu
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
citation:
ama: Fugger S, Fyffe CL, Fatichi S, et al. Understanding monsoon controls on the
energy and mass balance of glaciers in the Central and Eastern Himalaya. The
Cryosphere. 2022;16(5):1631-1652. doi:10.5194/tc-16-1631-2022
apa: Fugger, S., Fyffe, C. L., Fatichi, S., Miles, E., McCarthy, M., Shaw, T. E.,
… Pellicciotti, F. (2022). Understanding monsoon controls on the energy and mass
balance of glaciers in the Central and Eastern Himalaya. The Cryosphere.
Copernicus Publications. https://doi.org/10.5194/tc-16-1631-2022
chicago: Fugger, Stefan, Catriona L. Fyffe, Simone Fatichi, Evan Miles, Michael
McCarthy, Thomas E. Shaw, Baohong Ding, et al. “Understanding Monsoon Controls
on the Energy and Mass Balance of Glaciers in the Central and Eastern Himalaya.”
The Cryosphere. Copernicus Publications, 2022. https://doi.org/10.5194/tc-16-1631-2022.
ieee: S. Fugger et al., “Understanding monsoon controls on the energy and
mass balance of glaciers in the Central and Eastern Himalaya,” The Cryosphere,
vol. 16, no. 5. Copernicus Publications, pp. 1631–1652, 2022.
ista: Fugger S, Fyffe CL, Fatichi S, Miles E, McCarthy M, Shaw TE, Ding B, Yang
W, Wagnon P, Immerzeel W, Liu Q, Pellicciotti F. 2022. Understanding monsoon controls
on the energy and mass balance of glaciers in the Central and Eastern Himalaya.
The Cryosphere. 16(5), 1631–1652.
mla: Fugger, Stefan, et al. “Understanding Monsoon Controls on the Energy and Mass
Balance of Glaciers in the Central and Eastern Himalaya.” The Cryosphere,
vol. 16, no. 5, Copernicus Publications, 2022, pp. 1631–52, doi:10.5194/tc-16-1631-2022.
short: S. Fugger, C.L. Fyffe, S. Fatichi, E. Miles, M. McCarthy, T.E. Shaw, B. Ding,
W. Yang, P. Wagnon, W. Immerzeel, Q. Liu, F. Pellicciotti, The Cryosphere 16 (2022)
1631–1652.
date_created: 2023-02-20T08:10:16Z
date_published: 2022-05-05T00:00:00Z
date_updated: 2023-02-28T13:45:01Z
day: '05'
doi: 10.5194/tc-16-1631-2022
extern: '1'
intvolume: ' 16'
issue: '5'
keyword:
- Earth-Surface Processes
- Water Science and Technology
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.5194/tc-16-1631-2022
month: '05'
oa: 1
oa_version: Published Version
page: 1631-1652
publication: The Cryosphere
publication_identifier:
issn:
- 1994-0424
publication_status: published
publisher: Copernicus Publications
quality_controlled: '1'
scopus_import: '1'
status: public
title: Understanding monsoon controls on the energy and mass balance of glaciers in
the Central and Eastern Himalaya
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 16
year: '2022'
...
---
_id: '12581'
abstract:
- lang: eng
text: Topographic development via paraglacial slope failure (PSF) represents a complex
interplay between geological structure, climate, and glacial denudation. Southeastern
Tibet has experienced amongst the highest rates of ice mass loss in High Mountain
Asia in recent decades, but few studies have focused on the implications of this
mass loss on the stability of paraglacial slopes. We used repeat satellite- and
unpiloted aerial vehicle (UAV)-derived imagery between 1990 and 2020 as the basis
for mapping PSFs from slopes adjacent to Hailuogou Glacier (HLG), a 5 km long
monsoon temperate valley glacier in the Mt. Gongga region. We observed recent
lowering of the glacier tongue surface at rates of up to 0.88 m a−1 in the period
2000 to 2016, whilst overall paraglacial bare ground area (PBGA) on glacier-adjacent
slopes increased from 0.31 ± 0.27 km2 in 1990 to 1.38 ± 0.06 km2 in 2020. Decadal
PBGA expansion rates were ∼ 0.01 km2 a−1, 0.02 km2 a−1, and 0.08 km2 in the periods
1990–2000, 2000–2011, and 2011–2020 respectively, indicating an increasing rate
of expansion of PBGA. Three types of PSFs, including rockfalls, sediment-mantled
slope slides, and headward gully erosion, were mapped, with a total area of 0.75 ± 0.03 km2
in 2020. South-facing valley slopes (true left of the glacier) exhibited more
destabilization (56 % of the total PSF area) than north-facing (true right) valley
slopes (44 % of the total PSF area). Deformation of sediment-mantled moraine slopes
(mean 1.65–2.63 ± 0.04 cm d−1) and an increase in erosion activity in ice-marginal
tributary valleys caused by a drop in local base level (gully headward erosion
rates are 0.76–3.39 cm d−1) have occurred in tandem with recent glacier downwasting.
We also observe deformation of glacier ice, possibly driven by destabilization
of lateral moraine, as has been reported in other deglaciating mountain glacier
catchments. The formation, evolution, and future trajectory of PSFs at HLG (as
well as other monsoon-dominated deglaciating mountain areas) are related to glacial
history, including recent rapid downwasting leading to the exposure of steep,
unstable bedrock and moraine slopes, and climatic conditions that promote slope
instability, such as very high seasonal precipitation and seasonal temperature
fluctuations that are conducive to freeze–thaw and ice segregation processes.
article_processing_charge: No
article_type: original
author:
- first_name: Yan
full_name: Zhong, Yan
last_name: Zhong
- first_name: Qiao
full_name: Liu, Qiao
last_name: Liu
- first_name: Matthew
full_name: Westoby, Matthew
last_name: Westoby
- first_name: Yong
full_name: Nie, Yong
last_name: Nie
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
- first_name: Bo
full_name: Zhang, Bo
last_name: Zhang
- first_name: Jialun
full_name: Cai, Jialun
last_name: Cai
- first_name: Guoxiang
full_name: Liu, Guoxiang
last_name: Liu
- first_name: Haijun
full_name: Liao, Haijun
last_name: Liao
- first_name: Xuyang
full_name: Lu, Xuyang
last_name: Lu
citation:
ama: Zhong Y, Liu Q, Westoby M, et al. Intensified paraglacial slope failures due
to accelerating downwasting of a temperate glacier in Mt. Gongga, southeastern
Tibetan Plateau. Earth Surface Dynamics. 2022;10(1):23-42. doi:10.5194/esurf-10-23-2022
apa: Zhong, Y., Liu, Q., Westoby, M., Nie, Y., Pellicciotti, F., Zhang, B., … Lu,
X. (2022). Intensified paraglacial slope failures due to accelerating downwasting
of a temperate glacier in Mt. Gongga, southeastern Tibetan Plateau. Earth Surface
Dynamics. Copernicus Publications. https://doi.org/10.5194/esurf-10-23-2022
chicago: Zhong, Yan, Qiao Liu, Matthew Westoby, Yong Nie, Francesca Pellicciotti,
Bo Zhang, Jialun Cai, Guoxiang Liu, Haijun Liao, and Xuyang Lu. “Intensified Paraglacial
Slope Failures Due to Accelerating Downwasting of a Temperate Glacier in Mt. Gongga,
Southeastern Tibetan Plateau.” Earth Surface Dynamics. Copernicus Publications,
2022. https://doi.org/10.5194/esurf-10-23-2022.
ieee: Y. Zhong et al., “Intensified paraglacial slope failures due to accelerating
downwasting of a temperate glacier in Mt. Gongga, southeastern Tibetan Plateau,”
Earth Surface Dynamics, vol. 10, no. 1. Copernicus Publications, pp. 23–42,
2022.
ista: Zhong Y, Liu Q, Westoby M, Nie Y, Pellicciotti F, Zhang B, Cai J, Liu G, Liao
H, Lu X. 2022. Intensified paraglacial slope failures due to accelerating downwasting
of a temperate glacier in Mt. Gongga, southeastern Tibetan Plateau. Earth Surface
Dynamics. 10(1), 23–42.
mla: Zhong, Yan, et al. “Intensified Paraglacial Slope Failures Due to Accelerating
Downwasting of a Temperate Glacier in Mt. Gongga, Southeastern Tibetan Plateau.”
Earth Surface Dynamics, vol. 10, no. 1, Copernicus Publications, 2022,
pp. 23–42, doi:10.5194/esurf-10-23-2022.
short: Y. Zhong, Q. Liu, M. Westoby, Y. Nie, F. Pellicciotti, B. Zhang, J. Cai,
G. Liu, H. Liao, X. Lu, Earth Surface Dynamics 10 (2022) 23–42.
date_created: 2023-02-20T08:10:30Z
date_published: 2022-01-11T00:00:00Z
date_updated: 2023-02-28T13:38:27Z
day: '11'
doi: 10.5194/esurf-10-23-2022
extern: '1'
intvolume: ' 10'
issue: '1'
keyword:
- Earth-Surface Processes
- Geophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.5194/esurf-10-23-2022
month: '01'
oa: 1
oa_version: Published Version
page: 23-42
publication: Earth Surface Dynamics
publication_identifier:
issn:
- 2196-632X
publication_status: published
publisher: Copernicus Publications
quality_controlled: '1'
scopus_import: '1'
status: public
title: Intensified paraglacial slope failures due to accelerating downwasting of a
temperate glacier in Mt. Gongga, southeastern Tibetan Plateau
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 10
year: '2022'
...
---
_id: '12586'
abstract:
- lang: eng
text: Ice cliffs are common on debris-covered glaciers and have relatively high
melt rates due to their direct exposure to incoming radiation. Previous studies
have shown that their number and relative area can change considerably from year
to year, but this variability has not been explored, in part because available
cliff observations are irregular. Here, we systematically mapped and tracked ice
cliffs across four debris-covered glaciers in High Mountain Asia for every late
ablation season from 2009 to 2019 using high-resolution multi-spectral satellite
imagery. We then quantified the processes occurring at the feature scale to train
a stochastic birth-death model to represent the cliff population dynamics. Our
results show that while the cliff relative area can change by up to 20% from year
to year, the natural long-term variability is constrained, thus defining a glacier-specific
cliff carrying capacity. In a subsequent step, the inclusion of external drivers
related to climate, glacier dynamics, and hydrology highlights the influence of
these variables on the cliff population dynamics, which is usually not a direct
one due to the complexity and interdependence of the processes taking place at
the glacier surface. In some extreme cases (here, a glacier surge), these external
drivers may lead to a reorganization of the cliffs at the glacier surface and
a change in the natural variability. These results have implications for the melt
of debris-covered glaciers, in addition to showing the high rate of changes at
their surface and highlighting some of the links between cliff population and
glacier state.
article_number: e2021JF006179
article_processing_charge: No
article_type: original
author:
- first_name: M.
full_name: Kneib, M.
last_name: Kneib
- first_name: E. S.
full_name: Miles, E. S.
last_name: Miles
- first_name: P.
full_name: Buri, P.
last_name: Buri
- first_name: P.
full_name: Molnar, P.
last_name: Molnar
- first_name: M.
full_name: McCarthy, M.
last_name: McCarthy
- first_name: S.
full_name: Fugger, S.
last_name: Fugger
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
citation:
ama: 'Kneib M, Miles ES, Buri P, et al. Interannual dynamics of ice cliff populations
on debris‐covered glaciers from remote sensing observations and stochastic modeling.
Journal of Geophysical Research: Earth Surface. 2021;126(10). doi:10.1029/2021jf006179'
apa: 'Kneib, M., Miles, E. S., Buri, P., Molnar, P., McCarthy, M., Fugger, S., &
Pellicciotti, F. (2021). Interannual dynamics of ice cliff populations on debris‐covered
glaciers from remote sensing observations and stochastic modeling. Journal
of Geophysical Research: Earth Surface. American Geophysical Union. https://doi.org/10.1029/2021jf006179'
chicago: 'Kneib, M., E. S. Miles, P. Buri, P. Molnar, M. McCarthy, S. Fugger, and
Francesca Pellicciotti. “Interannual Dynamics of Ice Cliff Populations on Debris‐covered
Glaciers from Remote Sensing Observations and Stochastic Modeling.” Journal
of Geophysical Research: Earth Surface. American Geophysical Union, 2021.
https://doi.org/10.1029/2021jf006179.'
ieee: 'M. Kneib et al., “Interannual dynamics of ice cliff populations on
debris‐covered glaciers from remote sensing observations and stochastic modeling,”
Journal of Geophysical Research: Earth Surface, vol. 126, no. 10. American
Geophysical Union, 2021.'
ista: 'Kneib M, Miles ES, Buri P, Molnar P, McCarthy M, Fugger S, Pellicciotti F.
2021. Interannual dynamics of ice cliff populations on debris‐covered glaciers
from remote sensing observations and stochastic modeling. Journal of Geophysical
Research: Earth Surface. 126(10), e2021JF006179.'
mla: 'Kneib, M., et al. “Interannual Dynamics of Ice Cliff Populations on Debris‐covered
Glaciers from Remote Sensing Observations and Stochastic Modeling.” Journal
of Geophysical Research: Earth Surface, vol. 126, no. 10, e2021JF006179, American
Geophysical Union, 2021, doi:10.1029/2021jf006179.'
short: 'M. Kneib, E.S. Miles, P. Buri, P. Molnar, M. McCarthy, S. Fugger, F. Pellicciotti,
Journal of Geophysical Research: Earth Surface 126 (2021).'
date_created: 2023-02-20T08:11:36Z
date_published: 2021-10-01T00:00:00Z
date_updated: 2023-02-28T13:18:26Z
day: '01'
doi: 10.1029/2021jf006179
extern: '1'
intvolume: ' 126'
issue: '10'
keyword:
- Earth-Surface Processes
- Geophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1029/2021JF006179
month: '10'
oa: 1
oa_version: Published Version
publication: 'Journal of Geophysical Research: Earth Surface'
publication_identifier:
issn:
- 2169-9003
- 2169-9011
publication_status: published
publisher: American Geophysical Union
quality_controlled: '1'
scopus_import: '1'
status: public
title: Interannual dynamics of ice cliff populations on debris‐covered glaciers from
remote sensing observations and stochastic modeling
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 126
year: '2021'
...
---
_id: '12589'
abstract:
- lang: eng
text: Near-surface air temperature (Ta) is highly important for modelling glacier
ablation, though its spatio-temporal variability over melting glaciers still remains
largely unknown. We present a new dataset of distributed Ta for three glaciers
of different size in the south-east Tibetan Plateau during two monsoon-dominated
summer seasons. We compare on-glacier Ta to ambient Ta extrapolated from several
local off-glacier stations. We parameterise the along-flowline sensitivity of
Ta on these glaciers to changes in off-glacier temperatures (referred to as “temperature
sensitivity”) and present the results in the context of available distributed
on-glacier datasets around the world. Temperature sensitivity decreases rapidly
up to 2000–3000 m along the down-glacier flowline distance. Beyond this distance,
both the Ta on the Tibetan glaciers and global glacier datasets show little additional
cooling relative to the off-glacier temperature. In general, Ta on small glaciers
(with flowline distances <1000 m) is highly sensitive to temperature changes outside
the glacier boundary layer. The climatology of a given region can influence the
general magnitude of this temperature sensitivity, though no strong relationships
are found between along-flowline temperature sensitivity and mean summer temperatures
or precipitation. The terminus of some glaciers is affected by other warm-air
processes that increase temperature sensitivity (such as divergent boundary layer
flow, warm up-valley winds or debris/valley heating effects) which are evident
only beyond ∼70 % of the total glacier flowline distance. Our results therefore
suggest a strong role of local effects in modulating temperature sensitivity close
to the glacier terminus, although further work is still required to explain the
variability of these effects for different glaciers.
article_processing_charge: No
article_type: original
author:
- first_name: Thomas E.
full_name: Shaw, Thomas E.
last_name: Shaw
- first_name: Wei
full_name: Yang, Wei
last_name: Yang
- first_name: Álvaro
full_name: Ayala, Álvaro
last_name: Ayala
- first_name: Claudio
full_name: Bravo, Claudio
last_name: Bravo
- first_name: Chuanxi
full_name: Zhao, Chuanxi
last_name: Zhao
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
citation:
ama: 'Shaw TE, Yang W, Ayala Á, Bravo C, Zhao C, Pellicciotti F. Distributed summer
air temperatures across mountain glaciers in the south-east Tibetan Plateau: Temperature
sensitivity and comparison with existing glacier datasets. The Cryosphere.
2021;15(2):595-614. doi:10.5194/tc-15-595-2021'
apa: 'Shaw, T. E., Yang, W., Ayala, Á., Bravo, C., Zhao, C., & Pellicciotti,
F. (2021). Distributed summer air temperatures across mountain glaciers in the
south-east Tibetan Plateau: Temperature sensitivity and comparison with existing
glacier datasets. The Cryosphere. Copernicus Publications. https://doi.org/10.5194/tc-15-595-2021'
chicago: 'Shaw, Thomas E., Wei Yang, Álvaro Ayala, Claudio Bravo, Chuanxi Zhao,
and Francesca Pellicciotti. “Distributed Summer Air Temperatures across Mountain
Glaciers in the South-East Tibetan Plateau: Temperature Sensitivity and Comparison
with Existing Glacier Datasets.” The Cryosphere. Copernicus Publications,
2021. https://doi.org/10.5194/tc-15-595-2021.'
ieee: 'T. E. Shaw, W. Yang, Á. Ayala, C. Bravo, C. Zhao, and F. Pellicciotti, “Distributed
summer air temperatures across mountain glaciers in the south-east Tibetan Plateau:
Temperature sensitivity and comparison with existing glacier datasets,” The
Cryosphere, vol. 15, no. 2. Copernicus Publications, pp. 595–614, 2021.'
ista: 'Shaw TE, Yang W, Ayala Á, Bravo C, Zhao C, Pellicciotti F. 2021. Distributed
summer air temperatures across mountain glaciers in the south-east Tibetan Plateau:
Temperature sensitivity and comparison with existing glacier datasets. The Cryosphere.
15(2), 595–614.'
mla: 'Shaw, Thomas E., et al. “Distributed Summer Air Temperatures across Mountain
Glaciers in the South-East Tibetan Plateau: Temperature Sensitivity and Comparison
with Existing Glacier Datasets.” The Cryosphere, vol. 15, no. 2, Copernicus
Publications, 2021, pp. 595–614, doi:10.5194/tc-15-595-2021.'
short: T.E. Shaw, W. Yang, Á. Ayala, C. Bravo, C. Zhao, F. Pellicciotti, The Cryosphere
15 (2021) 595–614.
date_created: 2023-02-20T08:11:56Z
date_published: 2021-02-09T00:00:00Z
date_updated: 2023-02-28T12:58:27Z
day: '09'
doi: 10.5194/tc-15-595-2021
extern: '1'
intvolume: ' 15'
issue: '2'
keyword:
- Earth-Surface Processes
- Water Science and Technology
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.5194/tc-15-595-2021
month: '02'
oa: 1
oa_version: Published Version
page: 595-614
publication: The Cryosphere
publication_identifier:
issn:
- 1994-0424
publication_status: published
publisher: Copernicus Publications
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Distributed summer air temperatures across mountain glaciers in the south-east
Tibetan Plateau: Temperature sensitivity and comparison with existing glacier datasets'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 15
year: '2021'
...
---
_id: '12596'
abstract:
- lang: eng
text: As glaciers adjust their size in response to climate variations, long-term
changes in meltwater production can be expected, affecting the local availability
of water resources. We investigate glacier runoff in the period 1955–2016 in the
Maipo River basin (4843 km2, 33.0–34.3∘ S, 69.8–70.5∘ W), in the semiarid Andes
of Chile. The basin contains more than 800 glaciers, which cover 378 km2 in total
(inventoried in 2000). We model the mass balance and runoff contribution of 26
glaciers with the physically oriented and fully distributed TOPKAPI (Topographic
Kinematic Approximation and Integration)-ETH glacio-hydrological model and extrapolate
the results to the entire basin. TOPKAPI-ETH is run at a daily time step using
several glaciological and meteorological datasets, and its results are evaluated
against streamflow records, remotely sensed snow cover, and geodetic mass balances
for the periods 1955–2000 and 2000–2013. Results show that in 1955–2016 glacier
mass balance had a general decreasing trend as a basin average but also had differences
between the main sub-catchments. Glacier volume decreased by one-fifth (from 18.6±4.5
to 14.9±2.9 km3). Runoff from the initially glacierized areas was 177±25 mm yr−1
(16±7 % of the total contributions to the basin), but it shows a decreasing sequence
of maxima, which can be linked to the interplay between a decrease in precipitation
since the 1980s and the reduction of ice melt. Glaciers in the Maipo River basin
will continue retreating because they are not in equilibrium with the current
climate. In a hypothetical constant climate scenario, glacier volume would reduce
to 81±38 % of the year 2000 volume, and glacier runoff would be 78±30 % of the
1955–2016 average. This would considerably decrease the drought mitigation capacity
of the basin.
article_processing_charge: No
article_type: original
author:
- first_name: Álvaro
full_name: Ayala, Álvaro
last_name: Ayala
- first_name: David
full_name: Farías-Barahona, David
last_name: Farías-Barahona
- first_name: Matthias
full_name: Huss, Matthias
last_name: Huss
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
- first_name: James
full_name: McPhee, James
last_name: McPhee
- first_name: Daniel
full_name: Farinotti, Daniel
last_name: Farinotti
citation:
ama: Ayala Á, Farías-Barahona D, Huss M, Pellicciotti F, McPhee J, Farinotti D.
Glacier runoff variations since 1955 in the Maipo River basin, in the semiarid
Andes of central Chile. The Cryosphere. 2020;14(6):2005-2027. doi:10.5194/tc-14-2005-2020
apa: Ayala, Á., Farías-Barahona, D., Huss, M., Pellicciotti, F., McPhee, J., &
Farinotti, D. (2020). Glacier runoff variations since 1955 in the Maipo River
basin, in the semiarid Andes of central Chile. The Cryosphere. Copernicus
Publications. https://doi.org/10.5194/tc-14-2005-2020
chicago: Ayala, Álvaro, David Farías-Barahona, Matthias Huss, Francesca Pellicciotti,
James McPhee, and Daniel Farinotti. “Glacier Runoff Variations since 1955 in the
Maipo River Basin, in the Semiarid Andes of Central Chile.” The Cryosphere.
Copernicus Publications, 2020. https://doi.org/10.5194/tc-14-2005-2020.
ieee: Á. Ayala, D. Farías-Barahona, M. Huss, F. Pellicciotti, J. McPhee, and D.
Farinotti, “Glacier runoff variations since 1955 in the Maipo River basin, in
the semiarid Andes of central Chile,” The Cryosphere, vol. 14, no. 6. Copernicus
Publications, pp. 2005–2027, 2020.
ista: Ayala Á, Farías-Barahona D, Huss M, Pellicciotti F, McPhee J, Farinotti D.
2020. Glacier runoff variations since 1955 in the Maipo River basin, in the semiarid
Andes of central Chile. The Cryosphere. 14(6), 2005–2027.
mla: Ayala, Álvaro, et al. “Glacier Runoff Variations since 1955 in the Maipo River
Basin, in the Semiarid Andes of Central Chile.” The Cryosphere, vol. 14,
no. 6, Copernicus Publications, 2020, pp. 2005–27, doi:10.5194/tc-14-2005-2020.
short: Á. Ayala, D. Farías-Barahona, M. Huss, F. Pellicciotti, J. McPhee, D. Farinotti,
The Cryosphere 14 (2020) 2005–2027.
date_created: 2023-02-20T08:12:36Z
date_published: 2020-06-24T00:00:00Z
date_updated: 2023-02-28T12:32:31Z
day: '24'
doi: 10.5194/tc-14-2005-2020
extern: '1'
intvolume: ' 14'
issue: '6'
keyword:
- Earth-Surface Processes
- Water Science and Technology
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.5194/tc-14-2005-2020
month: '06'
oa: 1
oa_version: Published Version
page: 2005-2027
publication: The Cryosphere
publication_identifier:
issn:
- 1994-0424
publication_status: published
publisher: Copernicus Publications
quality_controlled: '1'
scopus_import: '1'
status: public
title: Glacier runoff variations since 1955 in the Maipo River basin, in the semiarid
Andes of central Chile
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 14
year: '2020'
...
---
_id: '12597'
abstract:
- lang: eng
text: We examine the spatial patterns of near-surface air temperature (Ta) over
a melting glacier using a multi-annual dataset from McCall Glacier, Alaska. The
dataset consists of a 10-year (2005–2014) meteorological record along the glacier
centreline up to an upper glacier cirque, spanning an elevation difference of
900 m. We test the validity of on-glacier linear lapse rates, and a model that
calculates Ta based on the influence of katabatic winds and other heat sources
along the glacier flow line. During the coldest hours of each summer (10% of time),
average lapse rates across the entire glacier range from −4.7 to −6.7°C km−1,
with a strong relationship between Ta and elevation (R2 > 0.7). During warm conditions,
Ta shows more complex, non-linear patterns that are better explained by the flow
line-dependent model, reducing errors by up to 0.5°C compared with linear lapse
rates, although more uncertainty might be associated with these observations due
to occasionally poor sensor ventilation. We conclude that Ta spatial distribution
can vary significantly from year to year, and from one glacier section to another.
Importantly, extrapolations using linear lapse rates from the ablation zone might
lead to large underestimations of Ta on the upper glacier areas.
article_processing_charge: No
article_type: original
author:
- first_name: Patrick
full_name: Troxler, Patrick
last_name: Troxler
- first_name: Álvaro
full_name: Ayala, Álvaro
last_name: Ayala
- first_name: Thomas E.
full_name: Shaw, Thomas E.
last_name: Shaw
- first_name: Matt
full_name: Nolan, Matt
last_name: Nolan
- first_name: Ben W.
full_name: Brock, Ben W.
last_name: Brock
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
citation:
ama: Troxler P, Ayala Á, Shaw TE, Nolan M, Brock BW, Pellicciotti F. Modelling spatial
patterns of near-surface air temperature over a decade of melt seasons on McCall
Glacier, Alaska. Journal of Glaciology. 2020;66(257):386-400. doi:10.1017/jog.2020.12
apa: Troxler, P., Ayala, Á., Shaw, T. E., Nolan, M., Brock, B. W., & Pellicciotti,
F. (2020). Modelling spatial patterns of near-surface air temperature over a decade
of melt seasons on McCall Glacier, Alaska. Journal of Glaciology. Cambridge
University Press. https://doi.org/10.1017/jog.2020.12
chicago: Troxler, Patrick, Álvaro Ayala, Thomas E. Shaw, Matt Nolan, Ben W. Brock,
and Francesca Pellicciotti. “Modelling Spatial Patterns of Near-Surface Air Temperature
over a Decade of Melt Seasons on McCall Glacier, Alaska.” Journal of Glaciology.
Cambridge University Press, 2020. https://doi.org/10.1017/jog.2020.12.
ieee: P. Troxler, Á. Ayala, T. E. Shaw, M. Nolan, B. W. Brock, and F. Pellicciotti,
“Modelling spatial patterns of near-surface air temperature over a decade of melt
seasons on McCall Glacier, Alaska,” Journal of Glaciology, vol. 66, no.
257. Cambridge University Press, pp. 386–400, 2020.
ista: Troxler P, Ayala Á, Shaw TE, Nolan M, Brock BW, Pellicciotti F. 2020. Modelling
spatial patterns of near-surface air temperature over a decade of melt seasons
on McCall Glacier, Alaska. Journal of Glaciology. 66(257), 386–400.
mla: Troxler, Patrick, et al. “Modelling Spatial Patterns of Near-Surface Air Temperature
over a Decade of Melt Seasons on McCall Glacier, Alaska.” Journal of Glaciology,
vol. 66, no. 257, Cambridge University Press, 2020, pp. 386–400, doi:10.1017/jog.2020.12.
short: P. Troxler, Á. Ayala, T.E. Shaw, M. Nolan, B.W. Brock, F. Pellicciotti, Journal
of Glaciology 66 (2020) 386–400.
date_created: 2023-02-20T08:12:42Z
date_published: 2020-06-01T00:00:00Z
date_updated: 2023-02-28T12:28:45Z
day: '01'
doi: 10.1017/jog.2020.12
extern: '1'
intvolume: ' 66'
issue: '257'
keyword:
- Earth-Surface Processes
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1017/jog.2020.12
month: '06'
oa: 1
oa_version: Published Version
page: 386-400
publication: Journal of Glaciology
publication_identifier:
eissn:
- 1727-5652
issn:
- 0022-1430
publication_status: published
publisher: Cambridge University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Modelling spatial patterns of near-surface air temperature over a decade of
melt seasons on McCall Glacier, Alaska
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 66
year: '2020'
...
---
_id: '12606'
abstract:
- lang: eng
text: Ice cliffs within a supraglacial debris cover have been identified as a source
for high ablation relative to the surrounding debris-covered area. Due to their
small relative size and steep orientation, ice cliffs are difficult to detect
using nadir-looking space borne sensors. The method presented here uses surface
slopes calculated from digital elevation model (DEM) data to map ice cliff geometry
and produce an ice cliff probability map. Surface slope thresholds, which can
be sensitive to geographic location and/or data quality, are selected automatically.
The method also attempts to include area at the (often narrowing) ends of ice
cliffs which could otherwise be neglected due to signal saturation in surface
slope data. The method was calibrated in the eastern Alaska Range, Alaska, USA,
against a control ice cliff dataset derived from high-resolution visible and thermal
data. Using the same input parameter set that performed best in Alaska, the method
was tested against ice cliffs manually mapped in the Khumbu Himal, Nepal. Our
results suggest the method can accommodate different glaciological settings and
different DEM data sources without a data intensive (high-resolution, multi-data
source) recalibration.
article_processing_charge: No
article_type: original
author:
- first_name: Sam
full_name: Herreid, Sam
last_name: Herreid
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
citation:
ama: Herreid S, Pellicciotti F. Automated detection of ice cliffs within supraglacial
debris cover. The Cryosphere. 2018;12(5):1811-1829. doi:10.5194/tc-12-1811-2018
apa: Herreid, S., & Pellicciotti, F. (2018). Automated detection of ice cliffs
within supraglacial debris cover. The Cryosphere. Copernicus Publications.
https://doi.org/10.5194/tc-12-1811-2018
chicago: Herreid, Sam, and Francesca Pellicciotti. “Automated Detection of Ice Cliffs
within Supraglacial Debris Cover.” The Cryosphere. Copernicus Publications,
2018. https://doi.org/10.5194/tc-12-1811-2018.
ieee: S. Herreid and F. Pellicciotti, “Automated detection of ice cliffs within
supraglacial debris cover,” The Cryosphere, vol. 12, no. 5. Copernicus
Publications, pp. 1811–1829, 2018.
ista: Herreid S, Pellicciotti F. 2018. Automated detection of ice cliffs within
supraglacial debris cover. The Cryosphere. 12(5), 1811–1829.
mla: Herreid, Sam, and Francesca Pellicciotti. “Automated Detection of Ice Cliffs
within Supraglacial Debris Cover.” The Cryosphere, vol. 12, no. 5, Copernicus
Publications, 2018, pp. 1811–29, doi:10.5194/tc-12-1811-2018.
short: S. Herreid, F. Pellicciotti, The Cryosphere 12 (2018) 1811–1829.
date_created: 2023-02-20T08:13:36Z
date_published: 2018-05-31T00:00:00Z
date_updated: 2023-02-28T11:39:26Z
day: '31'
doi: 10.5194/tc-12-1811-2018
extern: '1'
intvolume: ' 12'
issue: '5'
keyword:
- Earth-Surface Processes
- Water Science and Technology
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.5194/tc-12-1811-2018
month: '05'
oa: 1
oa_version: Published Version
page: 1811-1829
publication: The Cryosphere
publication_identifier:
issn:
- 1994-0424
publication_status: published
publisher: Copernicus Publications
quality_controlled: '1'
scopus_import: '1'
status: public
title: Automated detection of ice cliffs within supraglacial debris cover
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 12
year: '2018'
...
---
_id: '12608'
abstract:
- lang: eng
text: The spatio-temporal distribution of air temperature over mountain glaciers
can demonstrate complex patterns, yet it is often represented simplistically using
linear vertical temperature gradients (VTGs) extrapolated from off-glacier locations.
We analyse a network of centreline and lateral air temperature observations at
Tsanteleina Glacier, Italy, during summer 2015. On average, VTGs are steep (<−0.0065
°C m−1), but they are shallow under warm ambient conditions
when the correlation between air temperature and elevation becomes weaker. Published
along-flowline temperature distribution methods explain centreline observations
well, including warming on the lower glacier tongue, but cannot estimate lateral
temperature variability. Application of temperature distribution methods improves
simulation of melt rates (RMSE) in an energy-balance model by up to 36% compared
to the environmental lapse rate extrapolated from an off-glacier station. However,
results suggest that model parameters are not easily transferable to glaciers
with a small fetch without recalibration. Such methods have potential to improve
estimates of temperature across a glacier, but their parameter transferability
should be further linked to the glacier and atmospheric characteristics. Furthermore,
‘cold spots’, which can be >2°C cooler than expected for their elevation, whose
occurrence is not predicted by the temperature distribution models, are identified
at one-quarter of the measurement sites.
article_processing_charge: No
article_type: original
author:
- first_name: THOMAS E.
full_name: SHAW, THOMAS E.
last_name: SHAW
- first_name: BEN W.
full_name: BROCK, BEN W.
last_name: BROCK
- first_name: ÁLVARO
full_name: AYALA, ÁLVARO
last_name: AYALA
- first_name: NICK
full_name: RUTTER, NICK
last_name: RUTTER
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
citation:
ama: 'SHAW TE, BROCK BW, AYALA Á, RUTTER N, Pellicciotti F. Centreline and cross-glacier
air temperature variability on an Alpine glacier: Assessing temperature distribution
methods and their influence on melt model calculations. Journal of Glaciology.
2017;63(242):973-988. doi:10.1017/jog.2017.65'
apa: 'SHAW, T. E., BROCK, B. W., AYALA, Á., RUTTER, N., & Pellicciotti, F. (2017).
Centreline and cross-glacier air temperature variability on an Alpine glacier:
Assessing temperature distribution methods and their influence on melt model calculations.
Journal of Glaciology. Cambridge University Press. https://doi.org/10.1017/jog.2017.65'
chicago: 'SHAW, THOMAS E., BEN W. BROCK, ÁLVARO AYALA, NICK RUTTER, and Francesca
Pellicciotti. “Centreline and Cross-Glacier Air Temperature Variability on an
Alpine Glacier: Assessing Temperature Distribution Methods and Their Influence
on Melt Model Calculations.” Journal of Glaciology. Cambridge University
Press, 2017. https://doi.org/10.1017/jog.2017.65.'
ieee: 'T. E. SHAW, B. W. BROCK, Á. AYALA, N. RUTTER, and F. Pellicciotti, “Centreline
and cross-glacier air temperature variability on an Alpine glacier: Assessing
temperature distribution methods and their influence on melt model calculations,”
Journal of Glaciology, vol. 63, no. 242. Cambridge University Press, pp.
973–988, 2017.'
ista: 'SHAW TE, BROCK BW, AYALA Á, RUTTER N, Pellicciotti F. 2017. Centreline and
cross-glacier air temperature variability on an Alpine glacier: Assessing temperature
distribution methods and their influence on melt model calculations. Journal of
Glaciology. 63(242), 973–988.'
mla: 'SHAW, THOMAS E., et al. “Centreline and Cross-Glacier Air Temperature Variability
on an Alpine Glacier: Assessing Temperature Distribution Methods and Their Influence
on Melt Model Calculations.” Journal of Glaciology, vol. 63, no. 242, Cambridge
University Press, 2017, pp. 973–88, doi:10.1017/jog.2017.65.'
short: T.E. SHAW, B.W. BROCK, Á. AYALA, N. RUTTER, F. Pellicciotti, Journal of Glaciology
63 (2017) 973–988.
date_created: 2023-02-20T08:13:47Z
date_published: 2017-12-01T00:00:00Z
date_updated: 2023-02-28T11:30:34Z
day: '01'
doi: 10.1017/jog.2017.65
extern: '1'
intvolume: ' 63'
issue: '242'
keyword:
- Earth-Surface Processes
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1017/jog.2017.65
month: '12'
oa: 1
oa_version: Published Version
page: 973-988
publication: Journal of Glaciology
publication_identifier:
eissn:
- 1727-5652
issn:
- 0022-1430
publication_status: published
publisher: Cambridge University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Centreline and cross-glacier air temperature variability on an Alpine glacier:
Assessing temperature distribution methods and their influence on melt model calculations'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 63
year: '2017'
...
---
_id: '12609'
abstract:
- lang: eng
text: Previous estimates of melt and surface sublimation on glaciers of the subtropical
semiarid Andes (29–34°S) have been obtained at few specific locations, but it
is not clear how ablation components vary across the entire extent of a glacier
in this dry environment. Here, we simulate the distributed energy and mass balance
of Juncal Norte Glacier (33°S) during a 2-month summer period. Forcing fields
of near-surface air temperature and wind speed are generated using two methods
accounting for the main physical processes that shape their spatial variations.
Simulated meteorological variables and ablation agree well with observations on
the glacier tongue and reveal complex patterns of energy and mass fluxes. Ablation
decreases from 70 mm w.e. d−1 at the low-albedo glacier terminus
(~3000 m), where almost 100% of total ablation corresponds to melt, to <5 mm
w.e. d−1 at wind-exposed, strong-radiated sites above 5500
m, where surface sublimation represents >75% of total ablation. Our simulations
provide the first glacier-scale estimates of ablation components on a glacier
in the study region and better reproduce the observed and expected spatial variations
of melt and surface sublimation, in comparison with more simple assumptions, such
as linear gradients and uniform wind speeds.
article_processing_charge: No
article_type: original
author:
- first_name: A.
full_name: AYALA, A.
last_name: AYALA
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
- first_name: N.
full_name: PELEG, N.
last_name: PELEG
- first_name: P.
full_name: BURLANDO, P.
last_name: BURLANDO
citation:
ama: 'AYALA A, Pellicciotti F, PELEG N, BURLANDO P. Melt and surface sublimation
across a glacier in a dry environment: distributed energy-balance modelling of
Juncal Norte Glacier, Chile. Journal of Glaciology. 2017;63(241):803-822.
doi:10.1017/jog.2017.46'
apa: 'AYALA, A., Pellicciotti, F., PELEG, N., & BURLANDO, P. (2017). Melt and
surface sublimation across a glacier in a dry environment: distributed energy-balance
modelling of Juncal Norte Glacier, Chile. Journal of Glaciology. Cambridge
University Press. https://doi.org/10.1017/jog.2017.46'
chicago: 'AYALA, A., Francesca Pellicciotti, N. PELEG, and P. BURLANDO. “Melt and
Surface Sublimation across a Glacier in a Dry Environment: Distributed Energy-Balance
Modelling of Juncal Norte Glacier, Chile.” Journal of Glaciology. Cambridge
University Press, 2017. https://doi.org/10.1017/jog.2017.46.'
ieee: 'A. AYALA, F. Pellicciotti, N. PELEG, and P. BURLANDO, “Melt and surface sublimation
across a glacier in a dry environment: distributed energy-balance modelling of
Juncal Norte Glacier, Chile,” Journal of Glaciology, vol. 63, no. 241.
Cambridge University Press, pp. 803–822, 2017.'
ista: 'AYALA A, Pellicciotti F, PELEG N, BURLANDO P. 2017. Melt and surface sublimation
across a glacier in a dry environment: distributed energy-balance modelling of
Juncal Norte Glacier, Chile. Journal of Glaciology. 63(241), 803–822.'
mla: 'AYALA, A., et al. “Melt and Surface Sublimation across a Glacier in a Dry
Environment: Distributed Energy-Balance Modelling of Juncal Norte Glacier, Chile.”
Journal of Glaciology, vol. 63, no. 241, Cambridge University Press, 2017,
pp. 803–22, doi:10.1017/jog.2017.46.'
short: A. AYALA, F. Pellicciotti, N. PELEG, P. BURLANDO, Journal of Glaciology 63
(2017) 803–822.
date_created: 2023-02-20T08:13:53Z
date_published: 2017-10-01T00:00:00Z
date_updated: 2023-02-28T11:28:19Z
day: '01'
doi: 10.1017/jog.2017.46
extern: '1'
intvolume: ' 63'
issue: '241'
keyword:
- Earth-Surface Processes
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1017/jog.2017.46
month: '10'
oa: 1
oa_version: Published Version
page: 803-822
publication: Journal of Glaciology
publication_identifier:
eissn:
- 1727-5652
issn:
- 0022-1430
publication_status: published
publisher: Cambridge University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Melt and surface sublimation across a glacier in a dry environment: distributed
energy-balance modelling of Juncal Norte Glacier, Chile'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 63
year: '2017'
...
---
_id: '12612'
abstract:
- lang: eng
text: Supraglacial ponds play a key role in absorbing atmospheric energy and directing
it to the ice of debris-covered glaciers, but the spatial and temporal distribution
of these features is not well documented. We analyse 172 Landsat TM/ETM+ scenes
for the period 1999–2013 to identify thawed supraglacial ponds for the debris-covered
tongues of five glaciers in the Langtang Valley of Nepal. We apply an advanced
atmospheric correction routine (Landcor/6S) and use band ratio and image morphological
techniques to identify ponds and validate our results with 2.5 m Cartosat-1 observations.
We then characterize the spatial, seasonal and interannual patterns of ponds.
We find high variability in pond incidence between glaciers (May–October means
of 0.08–1.69% of debris area), with ponds most frequent in zones of low surface
gradient and velocity. The ponds show pronounced seasonality, appearing in the
pre-monsoon as snow melts, peaking at the monsoon onset at 2% of debris-covered
area, then declining in the post-monsoon as ponds drain or freeze. Ponds are highly
recurrent and persistent, with 40.5% of pond locations occurring for multiple
years. Rather than a trend in pond cover over the study period, we find high interannual
variability for each glacier after controlling for seasonality.
article_processing_charge: No
article_type: original
author:
- first_name: EVAN S.
full_name: MILES, EVAN S.
last_name: MILES
- first_name: IAN C.
full_name: WILLIS, IAN C.
last_name: WILLIS
- first_name: NEIL S.
full_name: ARNOLD, NEIL S.
last_name: ARNOLD
- first_name: JAKOB
full_name: STEINER, JAKOB
last_name: STEINER
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
citation:
ama: MILES ES, WILLIS IC, ARNOLD NS, STEINER J, Pellicciotti F. Spatial, seasonal
and interannual variability of supraglacial ponds in the Langtang Valley of Nepal,
1999–2013. Journal of Glaciology. 2017;63(237):88-105. doi:10.1017/jog.2016.120
apa: MILES, E. S., WILLIS, I. C., ARNOLD, N. S., STEINER, J., & Pellicciotti,
F. (2017). Spatial, seasonal and interannual variability of supraglacial ponds
in the Langtang Valley of Nepal, 1999–2013. Journal of Glaciology. Cambridge
University Press. https://doi.org/10.1017/jog.2016.120
chicago: MILES, EVAN S., IAN C. WILLIS, NEIL S. ARNOLD, JAKOB STEINER, and Francesca
Pellicciotti. “Spatial, Seasonal and Interannual Variability of Supraglacial Ponds
in the Langtang Valley of Nepal, 1999–2013.” Journal of Glaciology. Cambridge
University Press, 2017. https://doi.org/10.1017/jog.2016.120.
ieee: E. S. MILES, I. C. WILLIS, N. S. ARNOLD, J. STEINER, and F. Pellicciotti,
“Spatial, seasonal and interannual variability of supraglacial ponds in the Langtang
Valley of Nepal, 1999–2013,” Journal of Glaciology, vol. 63, no. 237. Cambridge
University Press, pp. 88–105, 2017.
ista: MILES ES, WILLIS IC, ARNOLD NS, STEINER J, Pellicciotti F. 2017. Spatial,
seasonal and interannual variability of supraglacial ponds in the Langtang Valley
of Nepal, 1999–2013. Journal of Glaciology. 63(237), 88–105.
mla: MILES, EVAN S., et al. “Spatial, Seasonal and Interannual Variability of Supraglacial
Ponds in the Langtang Valley of Nepal, 1999–2013.” Journal of Glaciology,
vol. 63, no. 237, Cambridge University Press, 2017, pp. 88–105, doi:10.1017/jog.2016.120.
short: E.S. MILES, I.C. WILLIS, N.S. ARNOLD, J. STEINER, F. Pellicciotti, Journal
of Glaciology 63 (2017) 88–105.
date_created: 2023-02-20T08:14:16Z
date_published: 2017-02-01T00:00:00Z
date_updated: 2023-02-24T11:38:31Z
day: '01'
doi: 10.1017/jog.2016.120
extern: '1'
intvolume: ' 63'
issue: '237'
keyword:
- Earth-Surface Processes
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1017/jog.2016.120
month: '02'
oa: 1
oa_version: Published Version
page: 88-105
publication: Journal of Glaciology
publication_identifier:
eissn:
- 1727-5652
issn:
- 0022-1430
publication_status: published
publisher: Cambridge University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Spatial, seasonal and interannual variability of supraglacial ponds in the
Langtang Valley of Nepal, 1999–2013
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 63
year: '2017'
...
---
_id: '12613'
abstract:
- lang: eng
text: 'We use high-resolution digital elevation models (DEMs) from unmanned aerial
vehicle (UAV) surveys to document the evolution of four ice cliffs on the debris-covered
tongue of Lirung Glacier, Nepal, over one ablation season. Observations show that
out of four cliffs, three different patterns of evolution emerge: (i) reclining
cliffs that flatten during the ablation season; (ii) stable cliffs that maintain
a self-similar geometry; and (iii) growing cliffs, expanding laterally. We use
the insights from this unique data set to develop a 3-D model of cliff backwasting
and evolution that is validated against observations and an independent data set
of volume losses. The model includes ablation at the cliff surface driven by energy
exchange with the atmosphere, reburial of cliff cells by surrounding debris, and
the effect of adjacent ponds. The cliff geometry is updated monthly to account
for the modifications induced by each of those processes. Model results indicate
that a major factor affecting the survival of steep cliffs is the coupling with
ponded water at its base, which prevents progressive flattening and possible disappearance
of a cliff. The radial growth observed at one cliff is explained by higher receipts
of longwave and shortwave radiation, calculated taking into account atmospheric
fluxes, shading, and the emission of longwave radiation from debris surfaces.
The model is a clear step forward compared to existing static approaches that
calculate atmospheric melt over an invariant cliff geometry and can be used for
long-term simulations of cliff evolution and to test existing hypotheses about
cliffs'' survival.'
article_processing_charge: No
article_type: original
author:
- first_name: Pascal
full_name: Buri, Pascal
last_name: Buri
- first_name: Evan S.
full_name: Miles, Evan S.
last_name: Miles
- first_name: Jakob F.
full_name: Steiner, Jakob F.
last_name: Steiner
- first_name: Walter W.
full_name: Immerzeel, Walter W.
last_name: Immerzeel
- first_name: Patrick
full_name: Wagnon, Patrick
last_name: Wagnon
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
citation:
ama: 'Buri P, Miles ES, Steiner JF, Immerzeel WW, Wagnon P, Pellicciotti F. A physically
based 3‐D model of ice cliff evolution over debris‐covered glaciers. Journal
of Geophysical Research: Earth Surface. 2016;121(12):2471-2493. doi:10.1002/2016jf004039'
apa: 'Buri, P., Miles, E. S., Steiner, J. F., Immerzeel, W. W., Wagnon, P., &
Pellicciotti, F. (2016). A physically based 3‐D model of ice cliff evolution over
debris‐covered glaciers. Journal of Geophysical Research: Earth Surface.
American Geophysical Union. https://doi.org/10.1002/2016jf004039'
chicago: 'Buri, Pascal, Evan S. Miles, Jakob F. Steiner, Walter W. Immerzeel, Patrick
Wagnon, and Francesca Pellicciotti. “A Physically Based 3‐D Model of Ice Cliff
Evolution over Debris‐covered Glaciers.” Journal of Geophysical Research: Earth
Surface. American Geophysical Union, 2016. https://doi.org/10.1002/2016jf004039.'
ieee: 'P. Buri, E. S. Miles, J. F. Steiner, W. W. Immerzeel, P. Wagnon, and F. Pellicciotti,
“A physically based 3‐D model of ice cliff evolution over debris‐covered glaciers,”
Journal of Geophysical Research: Earth Surface, vol. 121, no. 12. American
Geophysical Union, pp. 2471–2493, 2016.'
ista: 'Buri P, Miles ES, Steiner JF, Immerzeel WW, Wagnon P, Pellicciotti F. 2016.
A physically based 3‐D model of ice cliff evolution over debris‐covered glaciers.
Journal of Geophysical Research: Earth Surface. 121(12), 2471–2493.'
mla: 'Buri, Pascal, et al. “A Physically Based 3‐D Model of Ice Cliff Evolution
over Debris‐covered Glaciers.” Journal of Geophysical Research: Earth Surface,
vol. 121, no. 12, American Geophysical Union, 2016, pp. 2471–93, doi:10.1002/2016jf004039.'
short: 'P. Buri, E.S. Miles, J.F. Steiner, W.W. Immerzeel, P. Wagnon, F. Pellicciotti,
Journal of Geophysical Research: Earth Surface 121 (2016) 2471–2493.'
date_created: 2023-02-20T08:14:28Z
date_published: 2016-11-22T00:00:00Z
date_updated: 2023-02-24T11:34:54Z
day: '22'
doi: 10.1002/2016jf004039
extern: '1'
intvolume: ' 121'
issue: '12'
keyword:
- Earth-Surface Processes
- Geophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1002/2016JF004039
month: '11'
oa: 1
oa_version: Published Version
page: 2471-2493
publication: 'Journal of Geophysical Research: Earth Surface'
publication_identifier:
eissn:
- 2169-9011
issn:
- 2169-9003
publication_status: published
publisher: American Geophysical Union
quality_controlled: '1'
scopus_import: '1'
status: public
title: A physically based 3‐D model of ice cliff evolution over debris‐covered glaciers
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 121
year: '2016'
...
---
_id: '12617'
abstract:
- lang: eng
text: This study presents volume and mass changes of seven (five partially debris-covered,
two debris-free) glaciers in the upper Langtang catchment in Nepal. We use a digital
elevation model (DEM) from 1974 stereo Hexagon satellite data and seven DEMs derived
from 2006–2015 stereo or tri-stereo satellite imagery (e.g., SPOT6/7). The availability
of multiple independent DEM differences allows the identification of a robust
signal and narrowing down of the uncertainty about recent volume changes. The
volume changes calculated over several multiyear periods between 2006 and 2015
consistently indicate that glacier thinning has accelerated with respect to the
period 1974–2006. We calculate an ensemble-mean elevation change rate of –0.45 ± 0.18 m a−1
for 2006–2015, while for the period 1974–2006 we compute a rate of −0.24 ± 0.08 m a−1.
However, the behavior of glaciers in the study area is heterogeneous, and the
presence or absence of debris does not seem to be a good predictor for mass balance
trends. Debris-covered tongues have nonlinear thinning profiles, and we show that
recent accelerations in thinning correlate with the presence of supraglacial cliffs
and lakes. At stagnating glacier areas near the glacier front, however, thinning
rates decreased with time or remained constant. The April 2015 Nepal earthquake
triggered large avalanches in the study catchment. Analysis of two post-earthquake
DEMs revealed that the avalanche deposit volumes remaining 6 months after the
earthquake are negligible in comparison to 2006–2015 elevation changes. However,
the deposits compensate about 40 % the mass loss of debris-covered tongues of
1 average year.
article_processing_charge: No
article_type: original
author:
- first_name: Silvan
full_name: Ragettli, Silvan
last_name: Ragettli
- first_name: Tobias
full_name: Bolch, Tobias
last_name: Bolch
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
citation:
ama: Ragettli S, Bolch T, Pellicciotti F. Heterogeneous glacier thinning patterns
over the last 40 years in Langtang Himal, Nepal. The Cryosphere. 2016;10(5):2075-2097.
doi:10.5194/tc-10-2075-2016
apa: Ragettli, S., Bolch, T., & Pellicciotti, F. (2016). Heterogeneous glacier
thinning patterns over the last 40 years in Langtang Himal, Nepal. The Cryosphere.
Copernicus Publications. https://doi.org/10.5194/tc-10-2075-2016
chicago: Ragettli, Silvan, Tobias Bolch, and Francesca Pellicciotti. “Heterogeneous
Glacier Thinning Patterns over the Last 40 Years in Langtang Himal, Nepal.” The
Cryosphere. Copernicus Publications, 2016. https://doi.org/10.5194/tc-10-2075-2016.
ieee: S. Ragettli, T. Bolch, and F. Pellicciotti, “Heterogeneous glacier thinning
patterns over the last 40 years in Langtang Himal, Nepal,” The Cryosphere,
vol. 10, no. 5. Copernicus Publications, pp. 2075–2097, 2016.
ista: Ragettli S, Bolch T, Pellicciotti F. 2016. Heterogeneous glacier thinning
patterns over the last 40 years in Langtang Himal, Nepal. The Cryosphere. 10(5),
2075–2097.
mla: Ragettli, Silvan, et al. “Heterogeneous Glacier Thinning Patterns over the
Last 40 Years in Langtang Himal, Nepal.” The Cryosphere, vol. 10, no. 5,
Copernicus Publications, 2016, pp. 2075–97, doi:10.5194/tc-10-2075-2016.
short: S. Ragettli, T. Bolch, F. Pellicciotti, The Cryosphere 10 (2016) 2075–2097.
date_created: 2023-02-20T08:14:51Z
date_published: 2016-09-14T00:00:00Z
date_updated: 2023-02-24T10:54:02Z
day: '14'
doi: 10.5194/tc-10-2075-2016
extern: '1'
intvolume: ' 10'
issue: '5'
keyword:
- Earth-Surface Processes
- Water Science and Technology
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.5194/tc-10-2075-2016
month: '09'
oa: 1
oa_version: Published Version
page: 2075-2097
publication: The Cryosphere
publication_identifier:
issn:
- 1994-0424
publication_status: published
publisher: Copernicus Publications
quality_controlled: '1'
scopus_import: '1'
status: public
title: Heterogeneous glacier thinning patterns over the last 40 years in Langtang
Himal, Nepal
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 10
year: '2016'
...
---
_id: '12619'
abstract:
- lang: eng
text: Mass losses originating from supraglacial ice cliffs at the lower tongues
of debris-covered glaciers are a potentially large component of the mass balance,
but have rarely been quantified. In this study, we develop a method to estimate
ice cliff volume losses based on high-resolution topographic data derived from
terrestrial and aerial photogrammetry. We apply our method to six cliffs monitored
in May and October 2013 and 2014 using four different topographic datasets collected
over the debris-covered Lirung Glacier of the Nepalese Himalayas. During the monsoon,
the cliff mean backwasting rate was relatively consistent in 2013 (3.8 ± 0.3 cm
w.e. d−1) and more heterogeneous among cliffs in 2014 (3.1
± 0.7 cm w.e. d−1), and the geometric variations between
cliffs are larger. Their mean backwasting rate is significantly lower in winter
(October 2013–May 2014), at 1.0 ± 0.3 cm w.e. d−1. These
results are consistent with estimates of cliff ablation from an energy-balance
model developed in a previous study. The ice cliffs lose mass at rates six times
higher than estimates of glacier-wide melt under debris, which seems to confirm
that ice cliffs provide a large contribution to total glacier melt.
article_processing_charge: No
article_type: original
author:
- first_name: FANNY
full_name: BRUN, FANNY
last_name: BRUN
- first_name: PASCAL
full_name: BURI, PASCAL
last_name: BURI
- first_name: EVAN S.
full_name: MILES, EVAN S.
last_name: MILES
- first_name: PATRICK
full_name: WAGNON, PATRICK
last_name: WAGNON
- first_name: JAKOB
full_name: STEINER, JAKOB
last_name: STEINER
- first_name: ETIENNE
full_name: BERTHIER, ETIENNE
last_name: BERTHIER
- first_name: SILVAN
full_name: RAGETTLI, SILVAN
last_name: RAGETTLI
- first_name: PHILIP
full_name: KRAAIJENBRINK, PHILIP
last_name: KRAAIJENBRINK
- first_name: WALTER W.
full_name: IMMERZEEL, WALTER W.
last_name: IMMERZEEL
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
citation:
ama: BRUN F, BURI P, MILES ES, et al. Quantifying volume loss from ice cliffs on
debris-covered glaciers using high-resolution terrestrial and aerial photogrammetry.
Journal of Glaciology. 2016;62(234):684-695. doi:10.1017/jog.2016.54
apa: BRUN, F., BURI, P., MILES, E. S., WAGNON, P., STEINER, J., BERTHIER, E., …
Pellicciotti, F. (2016). Quantifying volume loss from ice cliffs on debris-covered
glaciers using high-resolution terrestrial and aerial photogrammetry. Journal
of Glaciology. Cambridge University Press. https://doi.org/10.1017/jog.2016.54
chicago: BRUN, FANNY, PASCAL BURI, EVAN S. MILES, PATRICK WAGNON, JAKOB STEINER,
ETIENNE BERTHIER, SILVAN RAGETTLI, PHILIP KRAAIJENBRINK, WALTER W. IMMERZEEL,
and Francesca Pellicciotti. “Quantifying Volume Loss from Ice Cliffs on Debris-Covered
Glaciers Using High-Resolution Terrestrial and Aerial Photogrammetry.” Journal
of Glaciology. Cambridge University Press, 2016. https://doi.org/10.1017/jog.2016.54.
ieee: F. BRUN et al., “Quantifying volume loss from ice cliffs on debris-covered
glaciers using high-resolution terrestrial and aerial photogrammetry,” Journal
of Glaciology, vol. 62, no. 234. Cambridge University Press, pp. 684–695,
2016.
ista: BRUN F, BURI P, MILES ES, WAGNON P, STEINER J, BERTHIER E, RAGETTLI S, KRAAIJENBRINK
P, IMMERZEEL WW, Pellicciotti F. 2016. Quantifying volume loss from ice cliffs
on debris-covered glaciers using high-resolution terrestrial and aerial photogrammetry.
Journal of Glaciology. 62(234), 684–695.
mla: BRUN, FANNY, et al. “Quantifying Volume Loss from Ice Cliffs on Debris-Covered
Glaciers Using High-Resolution Terrestrial and Aerial Photogrammetry.” Journal
of Glaciology, vol. 62, no. 234, Cambridge University Press, 2016, pp. 684–95,
doi:10.1017/jog.2016.54.
short: F. BRUN, P. BURI, E.S. MILES, P. WAGNON, J. STEINER, E. BERTHIER, S. RAGETTLI,
P. KRAAIJENBRINK, W.W. IMMERZEEL, F. Pellicciotti, Journal of Glaciology 62 (2016)
684–695.
date_created: 2023-02-20T08:15:06Z
date_published: 2016-08-01T00:00:00Z
date_updated: 2023-02-24T10:36:55Z
day: '01'
doi: 10.1017/jog.2016.54
extern: '1'
intvolume: ' 62'
issue: '234'
keyword:
- Earth-Surface Processes
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1017/jog.2016.54
month: '08'
oa: 1
oa_version: Published Version
page: 684-695
publication: Journal of Glaciology
publication_identifier:
eissn:
- 1727-5652
issn:
- 0022-1430
publication_status: published
publisher: Cambridge University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Quantifying volume loss from ice cliffs on debris-covered glaciers using high-resolution
terrestrial and aerial photogrammetry
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 62
year: '2016'
...
---
_id: '12621'
abstract:
- lang: eng
text: Near-surface air temperature is an important determinant of the surface energy
balance of glaciers and is often represented by a constant linear temperature
gradients (TGs) in models. Spatio-temporal variability in 2 m air temperature
was measured across the debris-covered Miage Glacier, Italy, over an 89 d period
during the 2014 ablation season using a network of 19 stations. Air temperature
was found to be strongly dependent upon elevation for most stations, even under
varying meteorological conditions and at different times of day, and its spatial
variability was well explained by a locally derived mean linear TG (MG–TG) of
−0.0088°C m−1. However, local temperature depressions occurred over areas of very
thin or patchy debris cover. The MG–TG, together with other air TGs, extrapolated
from both on- and off-glacier sites, were applied in a distributed energy-balance
model. Compared with piecewise air temperature extrapolation from all on-glacier
stations, modelled ablation, using the MG–TG, increased by <1%, increasing to
>4% using the environmental ‘lapse rate’. Ice melt under thick debris was relatively
insensitive to air temperature, while the effects of different temperature extrapolation
methods were strongest at high elevation sites of thin and patchy debris cover.
article_processing_charge: No
article_type: original
author:
- first_name: THOMAS E.
full_name: SHAW, THOMAS E.
last_name: SHAW
- first_name: BEN W.
full_name: BROCK, BEN W.
last_name: BROCK
- first_name: CATRIONA L.
full_name: FYFFE, CATRIONA L.
last_name: FYFFE
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
- first_name: NICK
full_name: RUTTER, NICK
last_name: RUTTER
- first_name: FABRIZIO
full_name: DIOTRI, FABRIZIO
last_name: DIOTRI
citation:
ama: SHAW TE, BROCK BW, FYFFE CL, Pellicciotti F, RUTTER N, DIOTRI F. Air temperature
distribution and energy-balance modelling of a debris-covered glacier. Journal
of Glaciology. 2016;62(231):185-198. doi:10.1017/jog.2016.31
apa: SHAW, T. E., BROCK, B. W., FYFFE, C. L., Pellicciotti, F., RUTTER, N., &
DIOTRI, F. (2016). Air temperature distribution and energy-balance modelling of
a debris-covered glacier. Journal of Glaciology. Cambridge University Press.
https://doi.org/10.1017/jog.2016.31
chicago: SHAW, THOMAS E., BEN W. BROCK, CATRIONA L. FYFFE, Francesca Pellicciotti,
NICK RUTTER, and FABRIZIO DIOTRI. “Air Temperature Distribution and Energy-Balance
Modelling of a Debris-Covered Glacier.” Journal of Glaciology. Cambridge
University Press, 2016. https://doi.org/10.1017/jog.2016.31.
ieee: T. E. SHAW, B. W. BROCK, C. L. FYFFE, F. Pellicciotti, N. RUTTER, and F. DIOTRI,
“Air temperature distribution and energy-balance modelling of a debris-covered
glacier,” Journal of Glaciology, vol. 62, no. 231. Cambridge University
Press, pp. 185–198, 2016.
ista: SHAW TE, BROCK BW, FYFFE CL, Pellicciotti F, RUTTER N, DIOTRI F. 2016. Air
temperature distribution and energy-balance modelling of a debris-covered glacier.
Journal of Glaciology. 62(231), 185–198.
mla: SHAW, THOMAS E., et al. “Air Temperature Distribution and Energy-Balance Modelling
of a Debris-Covered Glacier.” Journal of Glaciology, vol. 62, no. 231,
Cambridge University Press, 2016, pp. 185–98, doi:10.1017/jog.2016.31.
short: T.E. SHAW, B.W. BROCK, C.L. FYFFE, F. Pellicciotti, N. RUTTER, F. DIOTRI,
Journal of Glaciology 62 (2016) 185–198.
date_created: 2023-02-20T08:15:17Z
date_published: 2016-02-01T00:00:00Z
date_updated: 2023-02-24T10:30:03Z
day: '01'
doi: 10.1017/jog.2016.31
extern: '1'
intvolume: ' 62'
issue: '231'
keyword:
- Earth-Surface Processes
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1017/jog.2016.31
month: '02'
oa: 1
oa_version: Published Version
page: 185-198
publication: Journal of Glaciology
publication_identifier:
eissn:
- 1727-5652
issn:
- 0022-1430
publication_status: published
publisher: Cambridge University Press
scopus_import: '1'
status: public
title: Air temperature distribution and energy-balance modelling of a debris-covered
glacier
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 62
year: '2016'
...
---
_id: '12622'
abstract:
- lang: eng
text: Air temperature is a key control of processes affecting snow and glaciers
in high-elevation catchments, including melt, snowfall and sublimation. It is
therefore a key input variable to models of land–surface–atmosphere interaction.
Despite this importance, its spatial variability is poorly understood and simple
assumptions are made to extrapolate it from point observations to the catchment
scale. We use a dataset of 2.75 years of air temperature measurements (from May
2012 to November 2014) at a network of up to 27 locations in the Langtang River,
Nepal, catchment to investigate air temperature seasonality and consistency between
years. We use observations from high elevations and from the easternmost section
of the basin to corroborate previous findings of shallow lapse rates. Seasonal
variability is strong, with shallowest lapse rates during the monsoon season.
Diurnal variability is also strong and should be taken into account since processes
such as melt have a pronounced diurnal variability. Use of seasonal lapse rates
seems crucial for glacio-hydrological modelling, but seasonal lapse rates seem
stable over the 2–3 years investigated. Lateral variability at transects across
valley is high and dominated by aspect, with south-facing sites being warmer than
north-facing sites and deviations from the fitted lapse rates of up to several
degrees. Local factors (e.g. topographic shading) can reduce or enhance this effect.
The interplay of radiation, aspect and elevation should be further investigated
with high-elevation transects.
article_processing_charge: No
article_type: original
author:
- first_name: Martin
full_name: Heynen, Martin
last_name: Heynen
- first_name: Evan
full_name: Miles, Evan
last_name: Miles
- first_name: Silvan
full_name: Ragettli, Silvan
last_name: Ragettli
- first_name: Pascal
full_name: Buri, Pascal
last_name: Buri
- first_name: Walter W.
full_name: Immerzeel, Walter W.
last_name: Immerzeel
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
citation:
ama: Heynen M, Miles E, Ragettli S, Buri P, Immerzeel WW, Pellicciotti F. Air temperature
variability in a high-elevation Himalayan catchment. Annals of Glaciology.
2016;57(71):212-222. doi:10.3189/2016aog71a076
apa: Heynen, M., Miles, E., Ragettli, S., Buri, P., Immerzeel, W. W., & Pellicciotti,
F. (2016). Air temperature variability in a high-elevation Himalayan catchment.
Annals of Glaciology. International Glaciological Society. https://doi.org/10.3189/2016aog71a076
chicago: Heynen, Martin, Evan Miles, Silvan Ragettli, Pascal Buri, Walter W. Immerzeel,
and Francesca Pellicciotti. “Air Temperature Variability in a High-Elevation Himalayan
Catchment.” Annals of Glaciology. International Glaciological Society,
2016. https://doi.org/10.3189/2016aog71a076.
ieee: M. Heynen, E. Miles, S. Ragettli, P. Buri, W. W. Immerzeel, and F. Pellicciotti,
“Air temperature variability in a high-elevation Himalayan catchment,” Annals
of Glaciology, vol. 57, no. 71. International Glaciological Society, pp. 212–222,
2016.
ista: Heynen M, Miles E, Ragettli S, Buri P, Immerzeel WW, Pellicciotti F. 2016.
Air temperature variability in a high-elevation Himalayan catchment. Annals of
Glaciology. 57(71), 212–222.
mla: Heynen, Martin, et al. “Air Temperature Variability in a High-Elevation Himalayan
Catchment.” Annals of Glaciology, vol. 57, no. 71, International Glaciological
Society, 2016, pp. 212–22, doi:10.3189/2016aog71a076.
short: M. Heynen, E. Miles, S. Ragettli, P. Buri, W.W. Immerzeel, F. Pellicciotti,
Annals of Glaciology 57 (2016) 212–222.
date_created: 2023-02-20T08:15:25Z
date_published: 2016-03-01T00:00:00Z
date_updated: 2023-02-24T10:25:38Z
day: '01'
doi: 10.3189/2016aog71a076
extern: '1'
intvolume: ' 57'
issue: '71'
keyword:
- Earth-Surface Processes
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.3189/2016AoG71A076
month: '03'
oa: 1
oa_version: Published Version
page: 212-222
publication: Annals of Glaciology
publication_identifier:
eissn:
- 1727-5644
issn:
- 0260-3055
publication_status: published
publisher: International Glaciological Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Air temperature variability in a high-elevation Himalayan catchment
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 57
year: '2016'
...
---
_id: '12623'
abstract:
- lang: eng
text: Ice cliffs might be partly responsible for the high mass losses of debris-covered
glaciers in the Hindu Kush-Karakoram-Himalaya region. The few existing models
of cliff backwasting are point-scale models applied at few locations or assume
cliffs to be planes with constant slope and aspect, a major simplification given
the complex surfaces of most cliffs. We develop the first grid-based model of
cliff backwasting for two cliffs on debris-covered Lirung Glacier, Nepal. The
model includes an improved representation of shortwave and longwave radiation,
and their interplay with the glacier topography. Shortwave radiation varies considerably
across the two cliffs, mostly due to direct radiation. Diffuse radiation is the
major shortwave component, as the direct component is strongly reduced by the
cliffs’ aspect and slope through self-shading. Incoming longwave radiation is
higher than the total incoming shortwave flux, due to radiation emitted by the
surrounding terrain, which is 25% of the incoming flux. Melt is highly variable
in space, suggesting that simple models provide inaccurate estimates of total
melt volumes. Although only representing 0.09% of the glacier tongue area, the
total melt at the two cliffs over the measurement period is 2313 and 8282 m3,
1.23% of the total melt simulated by a glacio-hydrological model for the glacier’s
tongue.
article_processing_charge: No
article_type: original
author:
- first_name: Pascal
full_name: Buri, Pascal
last_name: Buri
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
- first_name: Jakob F.
full_name: Steiner, Jakob F.
last_name: Steiner
- first_name: Evan S.
full_name: Miles, Evan S.
last_name: Miles
- first_name: Walter W.
full_name: Immerzeel, Walter W.
last_name: Immerzeel
citation:
ama: Buri P, Pellicciotti F, Steiner JF, Miles ES, Immerzeel WW. A grid-based model
of backwasting of supraglacial ice cliffs on debris-covered glaciers. Annals
of Glaciology. 2016;57(71):199-211. doi:10.3189/2016aog71a059
apa: Buri, P., Pellicciotti, F., Steiner, J. F., Miles, E. S., & Immerzeel,
W. W. (2016). A grid-based model of backwasting of supraglacial ice cliffs on
debris-covered glaciers. Annals of Glaciology. International Glaciological
Society. https://doi.org/10.3189/2016aog71a059
chicago: Buri, Pascal, Francesca Pellicciotti, Jakob F. Steiner, Evan S. Miles,
and Walter W. Immerzeel. “A Grid-Based Model of Backwasting of Supraglacial Ice
Cliffs on Debris-Covered Glaciers.” Annals of Glaciology. International
Glaciological Society, 2016. https://doi.org/10.3189/2016aog71a059.
ieee: P. Buri, F. Pellicciotti, J. F. Steiner, E. S. Miles, and W. W. Immerzeel,
“A grid-based model of backwasting of supraglacial ice cliffs on debris-covered
glaciers,” Annals of Glaciology, vol. 57, no. 71. International Glaciological
Society, pp. 199–211, 2016.
ista: Buri P, Pellicciotti F, Steiner JF, Miles ES, Immerzeel WW. 2016. A grid-based
model of backwasting of supraglacial ice cliffs on debris-covered glaciers. Annals
of Glaciology. 57(71), 199–211.
mla: Buri, Pascal, et al. “A Grid-Based Model of Backwasting of Supraglacial Ice
Cliffs on Debris-Covered Glaciers.” Annals of Glaciology, vol. 57, no.
71, International Glaciological Society, 2016, pp. 199–211, doi:10.3189/2016aog71a059.
short: P. Buri, F. Pellicciotti, J.F. Steiner, E.S. Miles, W.W. Immerzeel, Annals
of Glaciology 57 (2016) 199–211.
date_created: 2023-02-20T08:15:34Z
date_published: 2016-03-01T00:00:00Z
date_updated: 2023-02-24T10:20:24Z
day: '01'
doi: 10.3189/2016aog71a059
extern: '1'
intvolume: ' 57'
issue: '71'
keyword:
- Earth-Surface Processes
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.3189/2016AoG71A059
month: '03'
oa: 1
oa_version: Published Version
page: 199-211
publication: Annals of Glaciology
publication_identifier:
eissn:
- 1727-5644
issn:
- 0260-3055
publication_status: published
publisher: International Glaciological Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: A grid-based model of backwasting of supraglacial ice cliffs on debris-covered
glaciers
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 57
year: '2016'
...
---
_id: '12624'
abstract:
- lang: eng
text: Supraglacial ponds on debris-covered glaciers present a mechanism of atmosphere/glacier
energy transfer that is poorly studied, and only conceptually included in mass-balance
studies of debris-covered glaciers. This research advances previous efforts to
develop a model of mass and energy balance for supraglacial ponds by applying
a free-convection approach to account for energy exchanges at the subaqueous bare-ice
surfaces. We develop the model using field data from a pond on Lirung Glacier,
Nepal, that was monitored during the 2013 and 2014 monsoon periods. Sensitivity
testing is performed for several key parameters, and alternative melt algorithms
are compared with the model. The pond acts as a significant recipient of energy
for the glacier system, and actively participates in the glacier’s hydrologic
system during the monsoon. Melt rates are 2-4 cm d-1 (total of 98.5 m3 over the
study period) for bare ice in contact with the pond, and <1 mmd-1 (total of 10.6m3)
for the saturated debris zone. The majority of absorbed atmospheric energy leaves
the pond system through englacial conduits, delivering sufficient energy to melt
2612 m3 additional ice over the study period (38.4 m3 d-1). Such melting might
be expected to lead to subsidence of the glacier surface. Supraglacial ponds efficiently
convey atmospheric energy to the glacier’s interior and rapidly promote the downwasting
process.
article_processing_charge: No
article_type: original
author:
- first_name: Evan S.
full_name: Miles, Evan S.
last_name: Miles
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
- first_name: Ian C.
full_name: Willis, Ian C.
last_name: Willis
- first_name: Jakob F.
full_name: Steiner, Jakob F.
last_name: Steiner
- first_name: Pascal
full_name: Buri, Pascal
last_name: Buri
- first_name: Neil S.
full_name: Arnold, Neil S.
last_name: Arnold
citation:
ama: Miles ES, Pellicciotti F, Willis IC, Steiner JF, Buri P, Arnold NS. Refined
energy-balance modelling of a supraglacial pond, Langtang Khola, Nepal. Annals
of Glaciology. 2016;57(71):29-40. doi:10.3189/2016aog71a421
apa: Miles, E. S., Pellicciotti, F., Willis, I. C., Steiner, J. F., Buri, P., &
Arnold, N. S. (2016). Refined energy-balance modelling of a supraglacial pond,
Langtang Khola, Nepal. Annals of Glaciology. International Glaciological
Society. https://doi.org/10.3189/2016aog71a421
chicago: Miles, Evan S., Francesca Pellicciotti, Ian C. Willis, Jakob F. Steiner,
Pascal Buri, and Neil S. Arnold. “Refined Energy-Balance Modelling of a Supraglacial
Pond, Langtang Khola, Nepal.” Annals of Glaciology. International Glaciological
Society, 2016. https://doi.org/10.3189/2016aog71a421.
ieee: E. S. Miles, F. Pellicciotti, I. C. Willis, J. F. Steiner, P. Buri, and N.
S. Arnold, “Refined energy-balance modelling of a supraglacial pond, Langtang
Khola, Nepal,” Annals of Glaciology, vol. 57, no. 71. International Glaciological
Society, pp. 29–40, 2016.
ista: Miles ES, Pellicciotti F, Willis IC, Steiner JF, Buri P, Arnold NS. 2016.
Refined energy-balance modelling of a supraglacial pond, Langtang Khola, Nepal.
Annals of Glaciology. 57(71), 29–40.
mla: Miles, Evan S., et al. “Refined Energy-Balance Modelling of a Supraglacial
Pond, Langtang Khola, Nepal.” Annals of Glaciology, vol. 57, no. 71, International
Glaciological Society, 2016, pp. 29–40, doi:10.3189/2016aog71a421.
short: E.S. Miles, F. Pellicciotti, I.C. Willis, J.F. Steiner, P. Buri, N.S. Arnold,
Annals of Glaciology 57 (2016) 29–40.
date_created: 2023-02-20T08:15:42Z
date_published: 2016-03-01T00:00:00Z
date_updated: 2023-02-24T10:17:29Z
day: '01'
doi: 10.3189/2016aog71a421
extern: '1'
intvolume: ' 57'
issue: '71'
keyword:
- Earth-Surface Processes
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.3189/2016AoG71A421
month: '03'
oa: 1
oa_version: Published Version
page: 29-40
publication: Annals of Glaciology
publication_identifier:
eissn:
- 1727-5644
issn:
- 0260-3055
publication_status: published
publisher: International Glaciological Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Refined energy-balance modelling of a supraglacial pond, Langtang Khola, Nepal
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 57
year: '2016'
...
---
_id: '12625'
abstract:
- lang: eng
text: Debris-covered glaciers play an important role in the high-altitude water
cycle in the Himalaya, yet their dynamics are poorly understood, partly because
of the difficult fieldwork conditions. In this study we therefore deploy an unmanned
aerial vehicle (UAV) three times (May 2013, October 2013 and May 2014) over the
debris-covered Lirung Glacier in Nepal. The acquired data are processed into orthomosaics
and elevation models by a Structure from Motion workflow, and seasonal surface
velocity is derived using frequency cross-correlation. In order to obtain optimal
surface velocity products, the effects of different input data and correlator
configurations are evaluated, which reveals that the orthomosaic as input paired
with moderate correlator settings provides the best results. The glacier has considerable
spatial and seasonal differences in surface velocity, with maximum summer and
winter velocities 6 and 2.5 m a-1, respectively, in the upper part of the tongue,
while the lower part is nearly stagnant. It is hypothesized that the higher velocities
during summer are caused by basal sliding due to increased lubrication of the
bed. We conclude that UAVs have great potential to quantify seasonal and annual
variations in flow and can help to further our understanding of debris-covered
glaciers.
article_processing_charge: No
article_type: original
author:
- first_name: Philip
full_name: Kraaijenbrink, Philip
last_name: Kraaijenbrink
- first_name: Sander W.
full_name: Meijer, Sander W.
last_name: Meijer
- first_name: Joseph M.
full_name: Shea, Joseph M.
last_name: Shea
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
- first_name: Steven M.
full_name: De Jong, Steven M.
last_name: De Jong
- first_name: Walter W.
full_name: Immerzeel, Walter W.
last_name: Immerzeel
citation:
ama: Kraaijenbrink P, Meijer SW, Shea JM, Pellicciotti F, De Jong SM, Immerzeel
WW. Seasonal surface velocities of a Himalayan glacier derived by automated correlation
of unmanned aerial vehicle imagery. Annals of Glaciology. 2016;57(71):103-113.
doi:10.3189/2016aog71a072
apa: Kraaijenbrink, P., Meijer, S. W., Shea, J. M., Pellicciotti, F., De Jong, S.
M., & Immerzeel, W. W. (2016). Seasonal surface velocities of a Himalayan
glacier derived by automated correlation of unmanned aerial vehicle imagery. Annals
of Glaciology. International Glaciological Society. https://doi.org/10.3189/2016aog71a072
chicago: Kraaijenbrink, Philip, Sander W. Meijer, Joseph M. Shea, Francesca Pellicciotti,
Steven M. De Jong, and Walter W. Immerzeel. “Seasonal Surface Velocities of a
Himalayan Glacier Derived by Automated Correlation of Unmanned Aerial Vehicle
Imagery.” Annals of Glaciology. International Glaciological Society, 2016.
https://doi.org/10.3189/2016aog71a072.
ieee: P. Kraaijenbrink, S. W. Meijer, J. M. Shea, F. Pellicciotti, S. M. De Jong,
and W. W. Immerzeel, “Seasonal surface velocities of a Himalayan glacier derived
by automated correlation of unmanned aerial vehicle imagery,” Annals of Glaciology,
vol. 57, no. 71. International Glaciological Society, pp. 103–113, 2016.
ista: Kraaijenbrink P, Meijer SW, Shea JM, Pellicciotti F, De Jong SM, Immerzeel
WW. 2016. Seasonal surface velocities of a Himalayan glacier derived by automated
correlation of unmanned aerial vehicle imagery. Annals of Glaciology. 57(71),
103–113.
mla: Kraaijenbrink, Philip, et al. “Seasonal Surface Velocities of a Himalayan Glacier
Derived by Automated Correlation of Unmanned Aerial Vehicle Imagery.” Annals
of Glaciology, vol. 57, no. 71, International Glaciological Society, 2016,
pp. 103–13, doi:10.3189/2016aog71a072.
short: P. Kraaijenbrink, S.W. Meijer, J.M. Shea, F. Pellicciotti, S.M. De Jong,
W.W. Immerzeel, Annals of Glaciology 57 (2016) 103–113.
date_created: 2023-02-20T08:15:56Z
date_published: 2016-03-01T00:00:00Z
date_updated: 2023-02-24T10:11:46Z
day: '01'
doi: 10.3189/2016aog71a072
extern: '1'
intvolume: ' 57'
issue: '71'
keyword:
- Earth-Surface Processes
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.3189/2016AoG71A072
month: '03'
oa: 1
oa_version: Published Version
page: 103-113
publication: Annals of Glaciology
publication_identifier:
eissn:
- 1727-5644
issn:
- 0260-3055
publication_status: published
publisher: International Glaciological Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Seasonal surface velocities of a Himalayan glacier derived by automated correlation
of unmanned aerial vehicle imagery
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 57
year: '2016'
...