---
_id: '12615'
abstract:
- lang: eng
text: 'We apply the process-based, distributed TOPKAPI-ETH glacio-hydrological model
to a glacierized catchment (19% glacierized) in the semiarid Andes of central
Chile. The semiarid Andes provides vital freshwater resources to valleys in Chile
and Argentina, but only few glacio-hydrological modelling studies have been conducted,
and its dominant hydrological processes remain poorly understood. The catchment
contains two debris-free glaciers reaching down to 3900 m asl (Bello and Yeso
glaciers) and one debris-covered avalanche-fed glacier reaching to 3200 m asl
(Piramide Glacier). Our main objective is to compare the mass balance and runoff
contributions of both glacier types under current climatic conditions. We use
a unique dataset of field measurements collected over two ablation seasons combined
with the distributed TOPKAPI-ETH model that includes physically oriented parameterizations
of snow and ice ablation, gravitational distribution of snow, snow albedo evolution
and the ablation of debris-covered ice. Model outputs indicate that while the
mass balance of Bello and Yeso glaciers is mostly explained by temperature gradients,
the Piramide Glacier mass balance is governed by debris thickness and avalanches
and has a clear non-linear profile with elevation as a result. Despite the thermal
insulation effect of the debris cover, the mass balance and contribution to runoff
from debris-free and debris-covered glaciers are similar in magnitude, mainly
because of elevation differences. However, runoff contributions are distinct in
time and seasonality with ice melt starting approximately four weeks earlier from
the debris-covered glacier, what is of relevance for water resources management.
At the catchment scale, snowmelt is the dominant contributor to runoff during
both years. However, during the driest year of our simulations, ice melt contributes
42 ± 8% and 67 ± 6% of the annual and summer runoff, respectively. Sensitivity
analyses show that runoff is most sensitive to temperature and precipitation gradients,
melt factors and debris cover thickness. '
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: S.
full_name: MacDonell, S.
last_name: MacDonell
- first_name: J.
full_name: McPhee, J.
last_name: McPhee
- first_name: S.
full_name: Vivero, S.
last_name: Vivero
- first_name: C.
full_name: Campos, C.
last_name: Campos
- first_name: P.
full_name: Egli, P.
last_name: Egli
citation:
ama: Ayala A, Pellicciotti F, MacDonell S, et al. Modelling the hydrological response
of debris-free and debris-covered glaciers to present climatic conditions in the
semiarid Andes of central Chile. Hydrological Processes. 2016;30(22):4036-4058.
doi:10.1002/hyp.10971
apa: Ayala, A., Pellicciotti, F., MacDonell, S., McPhee, J., Vivero, S., Campos,
C., & Egli, P. (2016). Modelling the hydrological response of debris-free
and debris-covered glaciers to present climatic conditions in the semiarid Andes
of central Chile. Hydrological Processes. Wiley. https://doi.org/10.1002/hyp.10971
chicago: Ayala, A., Francesca Pellicciotti, S. MacDonell, J. McPhee, S. Vivero,
C. Campos, and P. Egli. “Modelling the Hydrological Response of Debris-Free and
Debris-Covered Glaciers to Present Climatic Conditions in the Semiarid Andes of
Central Chile.” Hydrological Processes. Wiley, 2016. https://doi.org/10.1002/hyp.10971.
ieee: A. Ayala et al., “Modelling the hydrological response of debris-free
and debris-covered glaciers to present climatic conditions in the semiarid Andes
of central Chile,” Hydrological Processes, vol. 30, no. 22. Wiley, pp.
4036–4058, 2016.
ista: Ayala A, Pellicciotti F, MacDonell S, McPhee J, Vivero S, Campos C, Egli P.
2016. Modelling the hydrological response of debris-free and debris-covered glaciers
to present climatic conditions in the semiarid Andes of central Chile. Hydrological
Processes. 30(22), 4036–4058.
mla: Ayala, A., et al. “Modelling the Hydrological Response of Debris-Free and Debris-Covered
Glaciers to Present Climatic Conditions in the Semiarid Andes of Central Chile.”
Hydrological Processes, vol. 30, no. 22, Wiley, 2016, pp. 4036–58, doi:10.1002/hyp.10971.
short: A. Ayala, F. Pellicciotti, S. MacDonell, J. McPhee, S. Vivero, C. Campos,
P. Egli, Hydrological Processes 30 (2016) 4036–4058.
date_created: 2023-02-20T08:14:40Z
date_published: 2016-07-28T00:00:00Z
date_updated: 2023-02-24T11:29:28Z
day: '28'
doi: 10.1002/hyp.10971
extern: '1'
intvolume: ' 30'
issue: '22'
keyword:
- Water Science and Technology
language:
- iso: eng
month: '07'
oa_version: None
page: 4036-4058
publication: Hydrological Processes
publication_identifier:
issn:
- 0885-6087
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: Modelling the hydrological response of debris-free and debris-covered glaciers
to present climatic conditions in the semiarid Andes of central Chile
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 30
year: '2016'
...
---
_id: '12616'
abstract:
- lang: eng
text: This paper presents a methodology for hydrograph separation in mountain watersheds,
which aims at identifying flow sources among ungauged headwater sub-catchments
through a combination of observed streamflow and data on natural tracers including
isotope and dissolved solids. Daily summer and bi-daily spring season water samples
obtained at the outlet of the Juncal River Basin in the Andes of Central Chile
were analysed for all major ions as well as stable water isotopes, δ18O and δD.
Additionally, various samples from rain, snow, surface streams and exfiltrating
subsurface water (springs) were sampled throughout the catchment. A principal
component analysis was performed in order to address cross-correlation in the
tracer dataset, reduce the dimensionality of the problem and uncover patterns
of variability. Potential sources were identified in a two-component U-space that
explains 94% of the observed tracer variability at the catchment outlet. Hydrograph
separation was performed through an Informative-Bayesian model. Our results indicate
that the Juncal Norte Glacier headwater sub-catchment contributed at least 50%
of summer flows at the Juncal River Basin outlet during the 2011–2012 water year
(a hydrologically dry period in the Region), even though it accounts for only
27% of the basin area. Our study confirms the value of combining solute and isotope
information for estimating source contributions in complex hydrologic systems,
and provides insights regarding experimental design in high-elevation semi-arid
catchments. The findings of this study can be useful for evaluating modelling
studies of the hydrological consequences of the rapid decrease in glacier cover
observed in this region, by providing insights into the origin of river water
in basins with little hydrometeorological information.
article_processing_charge: No
article_type: original
author:
- first_name: Maximiliano
full_name: Rodriguez, Maximiliano
last_name: Rodriguez
- first_name: Nils
full_name: Ohlanders, Nils
last_name: Ohlanders
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
- first_name: Mark W.
full_name: Williams, Mark W.
last_name: Williams
- first_name: James
full_name: McPhee, James
last_name: McPhee
citation:
ama: Rodriguez M, Ohlanders N, Pellicciotti F, Williams MW, McPhee J. Estimating
runoff from a glacierized catchment using natural tracers in the semi-arid Andes
cordillera. Hydrological Processes. 2016;30(20):3609-3626. doi:10.1002/hyp.10973
apa: Rodriguez, M., Ohlanders, N., Pellicciotti, F., Williams, M. W., & McPhee,
J. (2016). Estimating runoff from a glacierized catchment using natural tracers
in the semi-arid Andes cordillera. Hydrological Processes. Wiley. https://doi.org/10.1002/hyp.10973
chicago: Rodriguez, Maximiliano, Nils Ohlanders, Francesca Pellicciotti, Mark W.
Williams, and James McPhee. “Estimating Runoff from a Glacierized Catchment Using
Natural Tracers in the Semi-Arid Andes Cordillera.” Hydrological Processes.
Wiley, 2016. https://doi.org/10.1002/hyp.10973.
ieee: M. Rodriguez, N. Ohlanders, F. Pellicciotti, M. W. Williams, and J. McPhee,
“Estimating runoff from a glacierized catchment using natural tracers in the semi-arid
Andes cordillera,” Hydrological Processes, vol. 30, no. 20. Wiley, pp.
3609–3626, 2016.
ista: Rodriguez M, Ohlanders N, Pellicciotti F, Williams MW, McPhee J. 2016. Estimating
runoff from a glacierized catchment using natural tracers in the semi-arid Andes
cordillera. Hydrological Processes. 30(20), 3609–3626.
mla: Rodriguez, Maximiliano, et al. “Estimating Runoff from a Glacierized Catchment
Using Natural Tracers in the Semi-Arid Andes Cordillera.” Hydrological Processes,
vol. 30, no. 20, Wiley, 2016, pp. 3609–26, doi:10.1002/hyp.10973.
short: M. Rodriguez, N. Ohlanders, F. Pellicciotti, M.W. Williams, J. McPhee, Hydrological
Processes 30 (2016) 3609–3626.
date_created: 2023-02-20T08:14:45Z
date_published: 2016-07-22T00:00:00Z
date_updated: 2023-02-24T11:26:54Z
day: '22'
doi: 10.1002/hyp.10973
extern: '1'
intvolume: ' 30'
issue: '20'
keyword:
- Water Science and Technology
language:
- iso: eng
month: '07'
oa_version: None
page: 3609-3626
publication: Hydrological Processes
publication_identifier:
issn:
- 0885-6087
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: Estimating runoff from a glacierized catchment using natural tracers in the
semi-arid Andes cordillera
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 30
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: '12618'
abstract:
- lang: eng
text: Mountain ranges are the world’s natural water towers and provide water resources
for millions of people. However, their hydrological balance and possible future
changes in river flow remain poorly understood because of high meteorological
variability, physical inaccessibility, and the complex interplay between climate,
cryosphere, and hydrological processes. Here, we use a state-of-the art glacio-hydrological
model informed by data from high-altitude observations and the latest climate
change scenarios to quantify the climate change impact on water resources of two
contrasting catchments vulnerable to changes in the cryosphere. The two study
catchments are located in the Central Andes of Chile and in the Nepalese Himalaya
in close vicinity of densely populated areas. Although both sites reveal a strong
decrease in glacier area, they show a remarkably different hydrological response
to projected climate change. In the Juncal catchment in Chile, runoff is likely
to sharply decrease in the future and the runoff seasonality is sensitive to projected
climatic changes. In the Langtang catchment in Nepal, future water availability
is on the rise for decades to come with limited shifts between seasons. Owing
to the high spatiotemporal resolution of the simulations and process complexity
included in the modeling, the response times and the mechanisms underlying the
variations in glacier area and river flow can be well constrained. The projections
indicate that climate change adaptation in Central Chile should focus on dealing
with a reduction in water availability, whereas in Nepal preparedness for flood
extremes should be the policy priority.
article_processing_charge: No
article_type: original
author:
- first_name: Silvan
full_name: Ragettli, Silvan
last_name: Ragettli
- 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: Ragettli S, Immerzeel WW, Pellicciotti F. Contrasting climate change impact
on river flows from high-altitude catchments in the Himalayan and Andes Mountains.
PNAS. 2016;113(33):9222-9227. doi:10.1073/pnas.1606526113
apa: Ragettli, S., Immerzeel, W. W., & Pellicciotti, F. (2016). Contrasting
climate change impact on river flows from high-altitude catchments in the Himalayan
and Andes Mountains. PNAS. Proceedings of the National Academy of Sciences.
https://doi.org/10.1073/pnas.1606526113
chicago: Ragettli, Silvan, Walter W. Immerzeel, and Francesca Pellicciotti. “Contrasting
Climate Change Impact on River Flows from High-Altitude Catchments in the Himalayan
and Andes Mountains.” PNAS. Proceedings of the National Academy of Sciences,
2016. https://doi.org/10.1073/pnas.1606526113.
ieee: S. Ragettli, W. W. Immerzeel, and F. Pellicciotti, “Contrasting climate change
impact on river flows from high-altitude catchments in the Himalayan and Andes
Mountains,” PNAS, vol. 113, no. 33. Proceedings of the National Academy
of Sciences, pp. 9222–9227, 2016.
ista: Ragettli S, Immerzeel WW, Pellicciotti F. 2016. Contrasting climate change
impact on river flows from high-altitude catchments in the Himalayan and Andes
Mountains. PNAS. 113(33), 9222–9227.
mla: Ragettli, Silvan, et al. “Contrasting Climate Change Impact on River Flows
from High-Altitude Catchments in the Himalayan and Andes Mountains.” PNAS,
vol. 113, no. 33, Proceedings of the National Academy of Sciences, 2016, pp. 9222–27,
doi:10.1073/pnas.1606526113.
short: S. Ragettli, W.W. Immerzeel, F. Pellicciotti, PNAS 113 (2016) 9222–9227.
date_created: 2023-02-20T08:14:58Z
date_published: 2016-08-01T00:00:00Z
date_updated: 2023-02-24T10:48:43Z
day: '01'
doi: 10.1073/pnas.1606526113
extern: '1'
external_id:
pmid:
- '27482082'
intvolume: ' 113'
issue: '33'
keyword:
- Multidisciplinary
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1073/pnas.1606526113
month: '08'
oa: 1
oa_version: Published Version
page: 9222-9227
pmid: 1
publication: PNAS
publication_identifier:
eissn:
- 1091-6490
issn:
- 0027-8424
publication_status: published
publisher: Proceedings of the National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: Contrasting climate change impact on river flows from high-altitude catchments
in the Himalayan and Andes Mountains
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 113
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: '1262'
abstract:
- lang: eng
text: Emerging infectious diseases (EIDs) have contributed significantly to the
current biodiversity crisis, leading to widespread epidemics and population loss.
Owing to genetic variation in pathogen virulence, a complete understanding of
species decline requires the accurate identification and characterization of EIDs.
We explore this issue in the Western honeybee, where increasing mortality of populations
in the Northern Hemisphere has caused major concern. Specifically, we investigate
the importance of genetic identity of the main suspect in mortality, deformed
wing virus (DWV), in driving honeybee loss. Using laboratory experiments and a
systematic field survey, we demonstrate that an emerging DWV genotype (DWV-B)
is more virulent than the established DWV genotype (DWV-A) and is widespread in
the landscape. Furthermore, we show in a simple model that colonies infected with
DWV-B collapse sooner than colonies infected with DWV-A. We also identify potential
for rapid DWV evolution by revealing extensive genome-wide recombination in vivo.
The emergence of DWV-B in naive honeybee populations, including via recombination
with DWV-A, could be of significant ecological and economic importance. Our findings
emphasize that knowledge of pathogen genetic identity and diversity is critical
to understanding drivers of species decline.
acknowledgement: "This work was supported by the Federal Ministry of Food, Agriculture
and Consumer Protection (Germany): Fit Bee project (grant 511-06.01-28-1-71.007-10),
the EU: BeeDoc (grant 244956), iDiv (2013 NGS-Fast Track grant W47004118) and the
Insect Pollinators Initiative (IPI grant BB/I000100/1 and BB/I000151/1). The IPI
is funded jointly by the Biotechnology and Biological Sciences Research Council,
the Department for Environment, Food and Rural Affairs, the Natural Environment
Research Council, the Scottish Government and the Wellcome Trust, under the Living
with Environmental Change Partnership. We thank A. Abrahams, M. Husemann and A.
Soro\r\nfor support in obtaining\r\nV. destructor\r\n-free honeybees; and BBKA\r\nPresident
D. Aston for access to records of colony overwinter\r\n2011–2012 mortality in the
UK. We also thank the anonymous refe-\r\nrees and Stephen Martin for comments that
led to substantial\r\nimprovement of the manuscript."
article_number: '20160811'
author:
- first_name: Dino
full_name: Mcmahon, Dino
last_name: Mcmahon
- first_name: Myrsini
full_name: Natsopoulou, Myrsini
last_name: Natsopoulou
- first_name: Vincent
full_name: Doublet, Vincent
last_name: Doublet
- first_name: Matthias
full_name: Fürst, Matthias
id: 393B1196-F248-11E8-B48F-1D18A9856A87
last_name: Fürst
orcid: 0000-0002-3712-925X
- first_name: Silvio
full_name: Weging, Silvio
last_name: Weging
- first_name: Mark
full_name: Brown, Mark
last_name: Brown
- first_name: Andreas
full_name: Gogol Döring, Andreas
last_name: Gogol Döring
- first_name: Robert
full_name: Paxton, Robert
last_name: Paxton
citation:
ama: Mcmahon D, Natsopoulou M, Doublet V, et al. Elevated virulence of an emerging
viral genotype as a driver of honeybee loss. Proceedings of the Royal Society
of London Series B Biological Sciences. 2016;283(1833). doi:10.1098/rspb.2016.0811
apa: Mcmahon, D., Natsopoulou, M., Doublet, V., Fürst, M., Weging, S., Brown, M.,
… Paxton, R. (2016). Elevated virulence of an emerging viral genotype as a driver
of honeybee loss. Proceedings of the Royal Society of London Series B Biological
Sciences. Royal Society, The. https://doi.org/10.1098/rspb.2016.0811
chicago: Mcmahon, Dino, Myrsini Natsopoulou, Vincent Doublet, Matthias Fürst, Silvio
Weging, Mark Brown, Andreas Gogol Döring, and Robert Paxton. “Elevated Virulence
of an Emerging Viral Genotype as a Driver of Honeybee Loss.” Proceedings of
the Royal Society of London Series B Biological Sciences. Royal Society, The,
2016. https://doi.org/10.1098/rspb.2016.0811.
ieee: D. Mcmahon et al., “Elevated virulence of an emerging viral genotype
as a driver of honeybee loss,” Proceedings of the Royal Society of London Series
B Biological Sciences, vol. 283, no. 1833. Royal Society, The, 2016.
ista: Mcmahon D, Natsopoulou M, Doublet V, Fürst M, Weging S, Brown M, Gogol Döring
A, Paxton R. 2016. Elevated virulence of an emerging viral genotype as a driver
of honeybee loss. Proceedings of the Royal Society of London Series B Biological
Sciences. 283(1833), 20160811.
mla: Mcmahon, Dino, et al. “Elevated Virulence of an Emerging Viral Genotype as
a Driver of Honeybee Loss.” Proceedings of the Royal Society of London Series
B Biological Sciences, vol. 283, no. 1833, 20160811, Royal Society, The, 2016,
doi:10.1098/rspb.2016.0811.
short: D. Mcmahon, M. Natsopoulou, V. Doublet, M. Fürst, S. Weging, M. Brown, A.
Gogol Döring, R. Paxton, Proceedings of the Royal Society of London Series B Biological
Sciences 283 (2016).
date_created: 2018-12-11T11:51:00Z
date_published: 2016-06-29T00:00:00Z
date_updated: 2023-02-23T14:05:30Z
day: '29'
ddc:
- '576'
- '592'
department:
- _id: SyCr
doi: 10.1098/rspb.2016.0811
file:
- access_level: open_access
checksum: 0b0d1be38b497d004064650acb3baced
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:08:46Z
date_updated: 2020-07-14T12:44:42Z
file_id: '4708'
file_name: IST-2016-701-v1+1_20160811.full.pdf
file_size: 796872
relation: main_file
file_date_updated: 2020-07-14T12:44:42Z
has_accepted_license: '1'
intvolume: ' 283'
issue: '1833'
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '06'
oa: 1
oa_version: Published Version
publication: Proceedings of the Royal Society of London Series B Biological Sciences
publication_status: published
publisher: Royal Society, The
publist_id: '6060'
pubrep_id: '701'
quality_controlled: '1'
related_material:
record:
- id: '9704'
relation: research_data
status: public
scopus_import: 1
status: public
title: Elevated virulence of an emerging viral genotype as a driver of honeybee loss
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 283
year: '2016'
...
---
_id: '12620'
abstract:
- lang: eng
text: "Debris-covered glaciers are increasingly studied because it is assumed that
debris cover extent and thickness could increase in a warming climate, with more
regular rockfalls from the surrounding slopes and more englacial melt-out material.
Debris energy-balance models have been developed to account for the melt rate
enhancement/reduction due to a thin/thick debris layer, respectively. However,
such models require a large amount of input data that are not often available,
especially in remote mountain areas such as the Himalaya, and can be difficult
to extrapolate. Due to their lower data requirements, empirical models have been
used extensively in clean glacier melt modelling. For debris-covered glaciers,
however, they generally simplify the debris effect by using a single melt-reduction
factor which does not account for the influence of varying debris thickness on
melt and prescribe a constant reduction for the entire melt across a glacier.\r\n\r\nIn
this paper, we present a new temperature-index model that accounts for debris
thickness in the computation of melt rates at the debris-ice interface. The model
empirical parameters are optimized at the point scale for varying debris thicknesses
against melt rates simulated by a physically-based debris energy balance model.
The latter is validated against ablation stake readings and surface temperature
measurements. Each parameter is then related to a plausible set of debris thickness
values to provide a general and transferable parameterization. We develop the
model on Miage Glacier, Italy, and then test its transferability on Haut Glacier
d’Arolla, Switzerland.\r\n\r\nThe performance of the new debris temperature-index
(DETI) model in simulating the glacier melt rate at the point scale is comparable
to the one of the physically based approach, and the definition of model parameters
as a function of debris thickness allows the simulation of the nonlinear relationship
of melt rate to debris thickness, summarised by the Østrem curve. Its large number
of parameters might be a limitation, but we show that the model is transferable
in time and space to a second glacier with little loss of performance. We thus
suggest that the new DETI model can be included in continuous mass balance models
of debris-covered glaciers, because of its limited data requirements. As such,
we expect its application to lead to an improvement in simulations of the debris-covered
glacier response to climate in comparison with models that simply recalibrate
empirical parameters to prescribe a constant across glacier reduction in melt."
article_processing_charge: No
article_type: original
author:
- first_name: M.
full_name: Carenzo, M.
last_name: Carenzo
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
- first_name: J.
full_name: Mabillard, J.
last_name: Mabillard
- first_name: T.
full_name: Reid, T.
last_name: Reid
- first_name: B.W.
full_name: Brock, B.W.
last_name: Brock
citation:
ama: Carenzo M, Pellicciotti F, Mabillard J, Reid T, Brock BW. An enhanced temperature
index model for debris-covered glaciers accounting for thickness effect. Advances
in Water Resources. 2016;94:457-469. doi:10.1016/j.advwatres.2016.05.001
apa: Carenzo, M., Pellicciotti, F., Mabillard, J., Reid, T., & Brock, B. W.
(2016). An enhanced temperature index model for debris-covered glaciers accounting
for thickness effect. Advances in Water Resources. Elsevier. https://doi.org/10.1016/j.advwatres.2016.05.001
chicago: Carenzo, M., Francesca Pellicciotti, J. Mabillard, T. Reid, and B.W. Brock.
“An Enhanced Temperature Index Model for Debris-Covered Glaciers Accounting for
Thickness Effect.” Advances in Water Resources. Elsevier, 2016. https://doi.org/10.1016/j.advwatres.2016.05.001.
ieee: M. Carenzo, F. Pellicciotti, J. Mabillard, T. Reid, and B. W. Brock, “An enhanced
temperature index model for debris-covered glaciers accounting for thickness effect,”
Advances in Water Resources, vol. 94. Elsevier, pp. 457–469, 2016.
ista: Carenzo M, Pellicciotti F, Mabillard J, Reid T, Brock BW. 2016. An enhanced
temperature index model for debris-covered glaciers accounting for thickness effect.
Advances in Water Resources. 94, 457–469.
mla: Carenzo, M., et al. “An Enhanced Temperature Index Model for Debris-Covered
Glaciers Accounting for Thickness Effect.” Advances in Water Resources,
vol. 94, Elsevier, 2016, pp. 457–69, doi:10.1016/j.advwatres.2016.05.001.
short: M. Carenzo, F. Pellicciotti, J. Mabillard, T. Reid, B.W. Brock, Advances
in Water Resources 94 (2016) 457–469.
date_created: 2023-02-20T08:15:11Z
date_published: 2016-08-01T00:00:00Z
date_updated: 2023-02-24T10:33:41Z
day: '01'
doi: 10.1016/j.advwatres.2016.05.001
extern: '1'
intvolume: ' 94'
keyword:
- Water Science and Technology
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1016/j.advwatres.2016.05.001
month: '08'
oa: 1
oa_version: Published Version
page: 457-469
publication: Advances in Water Resources
publication_identifier:
issn:
- 0309-1708
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: An enhanced temperature index model for debris-covered glaciers accounting
for thickness effect
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 94
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'
...
---
_id: '1263'
abstract:
- lang: eng
text: Linking classical microwave electrical circuits to the optical telecommunication
band is at the core of modern communication. Future quantum information networks
will require coherent microwave-to-optical conversion to link electronic quantum
processors and memories via low-loss optical telecommunication networks. Efficient
conversion can be achieved with electro-optical modulators operating at the single
microwave photon level. In the standard electro-optic modulation scheme, this
is impossible because both up- and down-converted sidebands are necessarily present.
Here, we demonstrate true single-sideband up- or down-conversion in a triply resonant
whispering gallery mode resonator by explicitly addressing modes with asymmetric
free spectral range. Compared to previous experiments, we show a 3 orders of magnitude
improvement of the electro-optical conversion efficiency, reaching 0.1% photon
number conversion for a 10 GHz microwave tone at 0.42 mW of optical pump power.
The presented scheme is fully compatible with existing superconducting 3D circuit
quantum electrodynamics technology and can be used for nonclassical state conversion
and communication. Our conversion bandwidth is larger than 1 MHz and is not fundamentally
limited.
acknowledgement: Alexander von Humboldt Foundation; Studienstiftung des Deutschen
Volkes. We would like to acknowledge our stimulating discussions with Konrad Lehnert
and Alessandro Pitanti.
article_processing_charge: No
author:
- first_name: Alfredo
full_name: Rueda, Alfredo
last_name: Rueda
- first_name: Florian
full_name: Sedlmeir, Florian
last_name: Sedlmeir
- first_name: Michele
full_name: Collodo, Michele
last_name: Collodo
- first_name: Ulrich
full_name: Vogl, Ulrich
last_name: Vogl
- first_name: Birgit
full_name: Stiller, Birgit
last_name: Stiller
- first_name: Gerhard
full_name: Schunk, Gerhard
last_name: Schunk
- first_name: Dmitry
full_name: Strekalov, Dmitry
last_name: Strekalov
- first_name: Christoph
full_name: Marquardt, Christoph
last_name: Marquardt
- first_name: Johannes M
full_name: Fink, Johannes M
id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
last_name: Fink
orcid: 0000-0001-8112-028X
- first_name: Oskar
full_name: Painter, Oskar
last_name: Painter
- first_name: Gerd
full_name: Leuchs, Gerd
last_name: Leuchs
- first_name: Harald
full_name: Schwefel, Harald
last_name: Schwefel
citation:
ama: 'Rueda A, Sedlmeir F, Collodo M, et al. Efficient microwave to optical photon
conversion: An electro-optical realization. Optica. 2016;3(6):597-604.
doi:10.1364/OPTICA.3.000597'
apa: 'Rueda, A., Sedlmeir, F., Collodo, M., Vogl, U., Stiller, B., Schunk, G., …
Schwefel, H. (2016). Efficient microwave to optical photon conversion: An electro-optical
realization. Optica. Optica Publishing Group. https://doi.org/10.1364/OPTICA.3.000597'
chicago: 'Rueda, Alfredo, Florian Sedlmeir, Michele Collodo, Ulrich Vogl, Birgit
Stiller, Gerhard Schunk, Dmitry Strekalov, et al. “Efficient Microwave to Optical
Photon Conversion: An Electro-Optical Realization.” Optica. Optica Publishing
Group, 2016. https://doi.org/10.1364/OPTICA.3.000597.'
ieee: 'A. Rueda et al., “Efficient microwave to optical photon conversion:
An electro-optical realization,” Optica, vol. 3, no. 6. Optica Publishing
Group, pp. 597–604, 2016.'
ista: 'Rueda A, Sedlmeir F, Collodo M, Vogl U, Stiller B, Schunk G, Strekalov D,
Marquardt C, Fink JM, Painter O, Leuchs G, Schwefel H. 2016. Efficient microwave
to optical photon conversion: An electro-optical realization. Optica. 3(6), 597–604.'
mla: 'Rueda, Alfredo, et al. “Efficient Microwave to Optical Photon Conversion:
An Electro-Optical Realization.” Optica, vol. 3, no. 6, Optica Publishing
Group, 2016, pp. 597–604, doi:10.1364/OPTICA.3.000597.'
short: A. Rueda, F. Sedlmeir, M. Collodo, U. Vogl, B. Stiller, G. Schunk, D. Strekalov,
C. Marquardt, J.M. Fink, O. Painter, G. Leuchs, H. Schwefel, Optica 3 (2016) 597–604.
date_created: 2018-12-11T11:51:01Z
date_published: 2016-06-20T00:00:00Z
date_updated: 2023-10-17T12:17:15Z
day: '20'
department:
- _id: JoFi
doi: 10.1364/OPTICA.3.000597
intvolume: ' 3'
issue: '6'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1364/OPTICA.3.000597
month: '06'
oa: 1
oa_version: Published Version
page: 597 - 604
publication: Optica
publication_status: published
publisher: Optica Publishing Group
publist_id: '6061'
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Efficient microwave to optical photon conversion: An electro-optical realization'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 3
year: '2016'
...
---
_id: '1264'
abstract:
- lang: eng
text: n contrast with the wealth of recent reports about the function of μ-adaptins
and clathrin adaptor protein (AP) complexes, there is very little information
about the motifs that determine the sorting of membrane proteins within clathrin-coated
vesicles in plants. Here, we investigated putative sorting signals in the large
cytosolic loop of the Arabidopsis (Arabidopsis thaliana) PIN-FORMED1 (PIN1) auxin
transporter, which are involved in binding μ-adaptins and thus in PIN1 trafficking
and localization. We found that Phe-165 and Tyr-280, Tyr-328, and Tyr-394 are
involved in the binding of different μ-adaptins in vitro. However, only Phe-165,
which binds μA(μ2)- and μD(μ3)-adaptin, was found to be essential for PIN1 trafficking
and localization in vivo. The PIN1:GFP-F165A mutant showed reduced endocytosis
but also localized to intracellular structures containing several layers of membranes
and endoplasmic reticulum (ER) markers, suggesting that they correspond to ER
or ER-derived membranes. While PIN1:GFP localized normally in a μA (μ2)-adaptin
mutant, it accumulated in big intracellular structures containing LysoTracker
in a μD (μ3)-adaptin mutant, consistent with previous results obtained with mutants
of other subunits of the AP-3 complex. Our data suggest that Phe-165, through
the binding of μA (μ2)- and μD (μ3)-adaptin, is important for PIN1 endocytosis
and for PIN1 trafficking along the secretory pathway, respectively.
acknowledgement: "We thank Dr. R. Offringa (Leiden University) for providing the GST-\r\nPIN-CL
construct; Sandra Richter and Gerd Jurgens (University of Tübin-\r\ngen) for providing
the estradiol-inducible PIN1-RFP construct and the\r\ngnl1 mutant expressing BFA-sensitive
GNL1; F.J. Santonja (University of Valencia)\r\nfor help with the statistical analysis;
Jurgen Kleine-Vehn, Elke Barbez, and\r\nEva Benkova for helpful discussions; the
Salk Institute Genomic Analysis\r\nLaboratory for providing the sequence-indexed
Arabidopsis T-DNA in-\r\nsertion mutants; and the greenhouse section and the microscopy
section\r\nof SCSIE (University of Valencia) and Pilar Selvi for excellent technical\r\nassistance."
author:
- first_name: Gloria
full_name: Sancho Andrés, Gloria
last_name: Sancho Andrés
- first_name: Esther
full_name: Soriano Ortega, Esther
last_name: Soriano Ortega
- first_name: Caiji
full_name: Gao, Caiji
last_name: Gao
- first_name: Joan
full_name: Bernabé Orts, Joan
last_name: Bernabé Orts
- first_name: Madhumitha
full_name: Narasimhan, Madhumitha
id: 44BF24D0-F248-11E8-B48F-1D18A9856A87
last_name: Narasimhan
orcid: 0000-0002-8600-0671
- first_name: Anna
full_name: Müller, Anna
id: 420AB15A-F248-11E8-B48F-1D18A9856A87
last_name: Müller
- first_name: Ricardo
full_name: Tejos, Ricardo
last_name: Tejos
- first_name: Liwen
full_name: Jiang, Liwen
last_name: Jiang
- first_name: Jirí
full_name: Friml, Jirí
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
- first_name: Fernando
full_name: Aniento, Fernando
last_name: Aniento
- first_name: Maria
full_name: Marcote, Maria
last_name: Marcote
citation:
ama: Sancho Andrés G, Soriano Ortega E, Gao C, et al. Sorting motifs involved in
the trafficking and localization of the PIN1 auxin efflux carrier. Plant Physiology.
2016;171(3):1965-1982. doi:10.1104/pp.16.00373
apa: Sancho Andrés, G., Soriano Ortega, E., Gao, C., Bernabé Orts, J., Narasimhan,
M., Müller, A., … Marcote, M. (2016). Sorting motifs involved in the trafficking
and localization of the PIN1 auxin efflux carrier. Plant Physiology. American
Society of Plant Biologists. https://doi.org/10.1104/pp.16.00373
chicago: Sancho Andrés, Gloria, Esther Soriano Ortega, Caiji Gao, Joan Bernabé Orts,
Madhumitha Narasimhan, Anna Müller, Ricardo Tejos, et al. “Sorting Motifs Involved
in the Trafficking and Localization of the PIN1 Auxin Efflux Carrier.” Plant
Physiology. American Society of Plant Biologists, 2016. https://doi.org/10.1104/pp.16.00373.
ieee: G. Sancho Andrés et al., “Sorting motifs involved in the trafficking
and localization of the PIN1 auxin efflux carrier,” Plant Physiology, vol.
171, no. 3. American Society of Plant Biologists, pp. 1965–1982, 2016.
ista: Sancho Andrés G, Soriano Ortega E, Gao C, Bernabé Orts J, Narasimhan M, Müller
A, Tejos R, Jiang L, Friml J, Aniento F, Marcote M. 2016. Sorting motifs involved
in the trafficking and localization of the PIN1 auxin efflux carrier. Plant Physiology.
171(3), 1965–1982.
mla: Sancho Andrés, Gloria, et al. “Sorting Motifs Involved in the Trafficking and
Localization of the PIN1 Auxin Efflux Carrier.” Plant Physiology, vol.
171, no. 3, American Society of Plant Biologists, 2016, pp. 1965–82, doi:10.1104/pp.16.00373.
short: G. Sancho Andrés, E. Soriano Ortega, C. Gao, J. Bernabé Orts, M. Narasimhan,
A. Müller, R. Tejos, L. Jiang, J. Friml, F. Aniento, M. Marcote, Plant Physiology
171 (2016) 1965–1982.
date_created: 2018-12-11T11:51:01Z
date_published: 2016-07-01T00:00:00Z
date_updated: 2021-01-12T06:49:29Z
day: '01'
department:
- _id: JiFr
- _id: EvBe
doi: 10.1104/pp.16.00373
ec_funded: 1
intvolume: ' 171'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4936568/
month: '07'
oa: 1
oa_version: Submitted Version
page: 1965 - 1982
project:
- _id: 25716A02-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '282300'
name: Polarity and subcellular dynamics in plants
publication: Plant Physiology
publication_status: published
publisher: American Society of Plant Biologists
publist_id: '6059'
quality_controlled: '1'
scopus_import: 1
status: public
title: Sorting motifs involved in the trafficking and localization of the PIN1 auxin
efflux carrier
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 171
year: '2016'
...
---
_id: '1265'
abstract:
- lang: eng
text: Extracellular matrices (ECMs) are central to the advent of multicellular life,
and their mechanical propertiesare modulated by and impinge on intracellular signaling
pathways that regulate vital cellular functions. High spatial-resolution mapping
of mechanical properties in live cells is, however, extremely challenging. Thus,
our understanding of how signaling pathways process physiological signals to generate
appropriate mechanical responses is limited. We introduce fluorescence emission-Brillouin
scattering imaging (FBi), a method for the parallel and all-optical measurements
of mechanical properties and fluorescence at the submicrometer scale in living
organisms. Using FBi, we showed thatchanges in cellular hydrostatic pressure and
cytoplasm viscoelasticity modulate the mechanical signatures of plant ECMs. We
further established that the measured "stiffness" of plant ECMs is symmetrically
patternedin hypocotyl cells undergoing directional growth. Finally, application
of this method to Arabidopsis thaliana with photoreceptor mutants revealed that
red and far-red light signals are essential modulators of ECM viscoelasticity.
By mapping the viscoelastic signatures of a complex ECM, we provide proof of principlefor
the organism-wide applicability of FBi for measuring the mechanical outputs of
intracellular signaling pathways. As such, our work has implications for investigations
of mechanosignaling pathways and developmental biology.
article_number: rs5
author:
- first_name: Kareem
full_name: Elsayad, Kareem
last_name: Elsayad
- first_name: Stephanie
full_name: Werner, Stephanie
last_name: Werner
- first_name: Marcal
full_name: Gallemi Rovira, Marcal
id: 460C6802-F248-11E8-B48F-1D18A9856A87
last_name: Gallemi Rovira
- first_name: Jixiang
full_name: Kong, Jixiang
last_name: Kong
- first_name: Edmundo
full_name: Guajardo, Edmundo
last_name: Guajardo
- first_name: Lijuan
full_name: Zhang, Lijuan
last_name: Zhang
- first_name: Yvon
full_name: Jaillais, Yvon
last_name: Jaillais
- first_name: Thomas
full_name: Greb, Thomas
last_name: Greb
- first_name: Youssef
full_name: Belkhadir, Youssef
last_name: Belkhadir
citation:
ama: Elsayad K, Werner S, Gallemi M, et al. Mapping the subcellular mechanical properties
of live cells in tissues with fluorescence emission-Brillouin imaging. Science
Signaling. 2016;9(435). doi:10.1126/scisignal.aaf6326
apa: Elsayad, K., Werner, S., Gallemi, M., Kong, J., Guajardo, E., Zhang, L., …
Belkhadir, Y. (2016). Mapping the subcellular mechanical properties of live cells
in tissues with fluorescence emission-Brillouin imaging. Science Signaling.
American Association for the Advancement of Science. https://doi.org/10.1126/scisignal.aaf6326
chicago: Elsayad, Kareem, Stephanie Werner, Marçal Gallemi, Jixiang Kong, Edmundo
Guajardo, Lijuan Zhang, Yvon Jaillais, Thomas Greb, and Youssef Belkhadir. “Mapping
the Subcellular Mechanical Properties of Live Cells in Tissues with Fluorescence
Emission-Brillouin Imaging.” Science Signaling. American Association for
the Advancement of Science, 2016. https://doi.org/10.1126/scisignal.aaf6326.
ieee: K. Elsayad et al., “Mapping the subcellular mechanical properties of
live cells in tissues with fluorescence emission-Brillouin imaging,” Science
Signaling, vol. 9, no. 435. American Association for the Advancement of Science,
2016.
ista: Elsayad K, Werner S, Gallemi M, Kong J, Guajardo E, Zhang L, Jaillais Y, Greb
T, Belkhadir Y. 2016. Mapping the subcellular mechanical properties of live cells
in tissues with fluorescence emission-Brillouin imaging. Science Signaling. 9(435),
rs5.
mla: Elsayad, Kareem, et al. “Mapping the Subcellular Mechanical Properties of Live
Cells in Tissues with Fluorescence Emission-Brillouin Imaging.” Science Signaling,
vol. 9, no. 435, rs5, American Association for the Advancement of Science, 2016,
doi:10.1126/scisignal.aaf6326.
short: K. Elsayad, S. Werner, M. Gallemi, J. Kong, E. Guajardo, L. Zhang, Y. Jaillais,
T. Greb, Y. Belkhadir, Science Signaling 9 (2016).
date_created: 2018-12-11T11:51:02Z
date_published: 2016-07-05T00:00:00Z
date_updated: 2021-01-12T06:49:29Z
day: '05'
department:
- _id: EvBe
doi: 10.1126/scisignal.aaf6326
intvolume: ' 9'
issue: '435'
language:
- iso: eng
month: '07'
oa_version: None
publication: Science Signaling
publication_status: published
publisher: American Association for the Advancement of Science
publist_id: '6057'
quality_controlled: '1'
scopus_import: 1
status: public
title: Mapping the subcellular mechanical properties of live cells in tissues with
fluorescence emission-Brillouin imaging
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 9
year: '2016'
...
---
_id: '1266'
abstract:
- lang: eng
text: 'Cortical networks exhibit ‘global oscillations’, in which neural spike times
are entrained to an underlying oscillatory rhythm, but where individual neurons
fire irregularly, on only a fraction of cycles. While the network dynamics underlying
global oscillations have been well characterised, their function is debated. Here,
we show that such global oscillations are a direct consequence of optimal efficient
coding in spiking networks with synaptic delays and noise. To avoid firing unnecessary
spikes, neurons need to share information about the network state. Ideally, membrane
potentials should be strongly correlated and reflect a ‘prediction error’ while
the spikes themselves are uncorrelated and occur rarely. We show that the most
efficient representation is when: (i) spike times are entrained to a global Gamma
rhythm (implying a consistent representation of the error); but (ii) few neurons
fire on each cycle (implying high efficiency), while (iii) excitation and inhibition
are tightly balanced. This suggests that cortical networks exhibiting such dynamics
are tuned to achieve a maximally efficient population code.'
acknowledgement: Boris Gutkin acknowledges funding by the Russian Academic Excellence
Project '5-100’.
article_number: e13824
author:
- first_name: Matthew J
full_name: Chalk, Matthew J
id: 2BAAC544-F248-11E8-B48F-1D18A9856A87
last_name: Chalk
orcid: 0000-0001-7782-4436
- first_name: Boris
full_name: Gutkin, Boris
last_name: Gutkin
- first_name: Sophie
full_name: Denève, Sophie
last_name: Denève
citation:
ama: Chalk MJ, Gutkin B, Denève S. Neural oscillations as a signature of efficient
coding in the presence of synaptic delays. eLife. 2016;5(2016JULY). doi:10.7554/eLife.13824
apa: Chalk, M. J., Gutkin, B., & Denève, S. (2016). Neural oscillations as a
signature of efficient coding in the presence of synaptic delays. ELife.
eLife Sciences Publications. https://doi.org/10.7554/eLife.13824
chicago: Chalk, Matthew J, Boris Gutkin, and Sophie Denève. “Neural Oscillations
as a Signature of Efficient Coding in the Presence of Synaptic Delays.” ELife.
eLife Sciences Publications, 2016. https://doi.org/10.7554/eLife.13824.
ieee: M. J. Chalk, B. Gutkin, and S. Denève, “Neural oscillations as a signature
of efficient coding in the presence of synaptic delays,” eLife, vol. 5,
no. 2016JULY. eLife Sciences Publications, 2016.
ista: Chalk MJ, Gutkin B, Denève S. 2016. Neural oscillations as a signature of
efficient coding in the presence of synaptic delays. eLife. 5(2016JULY), e13824.
mla: Chalk, Matthew J., et al. “Neural Oscillations as a Signature of Efficient
Coding in the Presence of Synaptic Delays.” ELife, vol. 5, no. 2016JULY,
e13824, eLife Sciences Publications, 2016, doi:10.7554/eLife.13824.
short: M.J. Chalk, B. Gutkin, S. Denève, ELife 5 (2016).
date_created: 2018-12-11T11:51:02Z
date_published: 2016-07-01T00:00:00Z
date_updated: 2021-01-12T06:49:30Z
day: '01'
ddc:
- '571'
department:
- _id: GaTk
doi: 10.7554/eLife.13824
file:
- access_level: open_access
checksum: dc52d967dc76174477bb258d84be2899
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:11:20Z
date_updated: 2020-07-14T12:44:42Z
file_id: '4874'
file_name: IST-2016-700-v1+1_e13824-download.pdf
file_size: 2819055
relation: main_file
file_date_updated: 2020-07-14T12:44:42Z
has_accepted_license: '1'
intvolume: ' 5'
issue: 2016JULY
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
publication: eLife
publication_status: published
publisher: eLife Sciences Publications
publist_id: '6056'
pubrep_id: '700'
quality_controlled: '1'
scopus_import: 1
status: public
title: Neural oscillations as a signature of efficient coding in the presence of synaptic
delays
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 5
year: '2016'
...
---
_id: '1267'
abstract:
- lang: eng
text: We give a simplified proof of the nonexistence of large nuclei in the liquid
drop model and provide an explicit bound. Our bound is within a factor of 2.3
of the conjectured value and seems to be the first quantitative result.
acknowledgement: "Open access funding provided by Institute of Science and Technology
Austria.\r\n"
author:
- first_name: Rupert
full_name: Frank, Rupert
last_name: Frank
- first_name: Rowan
full_name: Killip, Rowan
last_name: Killip
- first_name: Phan
full_name: Nam, Phan
id: 404092F4-F248-11E8-B48F-1D18A9856A87
last_name: Nam
citation:
ama: Frank R, Killip R, Nam P. Nonexistence of large nuclei in the liquid drop model.
Letters in Mathematical Physics. 2016;106(8):1033-1036. doi:10.1007/s11005-016-0860-8
apa: Frank, R., Killip, R., & Nam, P. (2016). Nonexistence of large nuclei in
the liquid drop model. Letters in Mathematical Physics. Springer. https://doi.org/10.1007/s11005-016-0860-8
chicago: Frank, Rupert, Rowan Killip, and Phan Nam. “Nonexistence of Large Nuclei
in the Liquid Drop Model.” Letters in Mathematical Physics. Springer, 2016.
https://doi.org/10.1007/s11005-016-0860-8.
ieee: R. Frank, R. Killip, and P. Nam, “Nonexistence of large nuclei in the liquid
drop model,” Letters in Mathematical Physics, vol. 106, no. 8. Springer,
pp. 1033–1036, 2016.
ista: Frank R, Killip R, Nam P. 2016. Nonexistence of large nuclei in the liquid
drop model. Letters in Mathematical Physics. 106(8), 1033–1036.
mla: Frank, Rupert, et al. “Nonexistence of Large Nuclei in the Liquid Drop Model.”
Letters in Mathematical Physics, vol. 106, no. 8, Springer, 2016, pp. 1033–36,
doi:10.1007/s11005-016-0860-8.
short: R. Frank, R. Killip, P. Nam, Letters in Mathematical Physics 106 (2016) 1033–1036.
date_created: 2018-12-11T11:51:02Z
date_published: 2016-08-01T00:00:00Z
date_updated: 2021-01-12T06:49:30Z
day: '01'
ddc:
- '510'
- '539'
department:
- _id: RoSe
doi: 10.1007/s11005-016-0860-8
file:
- access_level: open_access
checksum: d740a6a226e0f5f864f40e3e269d3cc0
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:11:09Z
date_updated: 2020-07-14T12:44:42Z
file_id: '4863'
file_name: IST-2016-698-v1+1_s11005-016-0860-8.pdf
file_size: 349464
relation: main_file
file_date_updated: 2020-07-14T12:44:42Z
has_accepted_license: '1'
intvolume: ' 106'
issue: '8'
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
page: 1033 - 1036
project:
- _id: 25C878CE-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P27533_N27
name: Structure of the Excitation Spectrum for Many-Body Quantum Systems
- _id: B67AFEDC-15C9-11EA-A837-991A96BB2854
name: IST Austria Open Access Fund
publication: Letters in Mathematical Physics
publication_status: published
publisher: Springer
publist_id: '6054'
pubrep_id: '698'
quality_controlled: '1'
scopus_import: 1
status: public
title: Nonexistence of large nuclei in the liquid drop model
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 106
year: '2016'
...
---
_id: '1268'
acknowledgement: We would like to thank Mihai Netea for inviting us to contribute
to this Theme Issue.
author:
- first_name: Barbara
full_name: Milutinovic, Barbara
id: 2CDC32B8-F248-11E8-B48F-1D18A9856A87
last_name: Milutinovic
orcid: 0000-0002-8214-4758
- first_name: Joachim
full_name: Kurtz, Joachim
last_name: Kurtz
citation:
ama: Milutinovic B, Kurtz J. Immune memory in invertebrates. Seminars in Immunology.
2016;28(4):328-342. doi:10.1016/j.smim.2016.05.004
apa: Milutinovic, B., & Kurtz, J. (2016). Immune memory in invertebrates. Seminars
in Immunology. Academic Press. https://doi.org/10.1016/j.smim.2016.05.004
chicago: Milutinovic, Barbara, and Joachim Kurtz. “Immune Memory in Invertebrates.”
Seminars in Immunology. Academic Press, 2016. https://doi.org/10.1016/j.smim.2016.05.004.
ieee: B. Milutinovic and J. Kurtz, “Immune memory in invertebrates,” Seminars
in Immunology, vol. 28, no. 4. Academic Press, pp. 328–342, 2016.
ista: Milutinovic B, Kurtz J. 2016. Immune memory in invertebrates. Seminars in
Immunology. 28(4), 328–342.
mla: Milutinovic, Barbara, and Joachim Kurtz. “Immune Memory in Invertebrates.”
Seminars in Immunology, vol. 28, no. 4, Academic Press, 2016, pp. 328–42,
doi:10.1016/j.smim.2016.05.004.
short: B. Milutinovic, J. Kurtz, Seminars in Immunology 28 (2016) 328–342.
date_created: 2018-12-11T11:51:03Z
date_published: 2016-08-01T00:00:00Z
date_updated: 2021-01-12T06:49:30Z
day: '01'
department:
- _id: SyCr
doi: 10.1016/j.smim.2016.05.004
intvolume: ' 28'
issue: '4'
language:
- iso: eng
month: '08'
oa_version: None
page: 328 - 342
publication: Seminars in Immunology
publication_status: published
publisher: Academic Press
publist_id: '6053'
quality_controlled: '1'
scopus_import: 1
status: public
title: Immune memory in invertebrates
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 28
year: '2016'
...
---
_id: '1269'
abstract:
- lang: eng
text: Plants are continuously exposed to a myriad of external signals such as fluctuating
nutrients availability, drought, heat, cold, high salinity, or pathogen/pest attacks
that can severely affect their development, growth, and fertility. As sessile
organisms, plants must therefore be able to sense and rapidly react to these external
inputs, activate efficient responses, and adjust development to changing conditions.
In recent years, significant progress has been made towards understanding the
molecular mechanisms underlying the intricate and complex communication between
plants and the environment. It is now becoming increasingly evident that hormones
have an important regulatory role in plant adaptation and defense mechanisms.
author:
- first_name: Eva
full_name: Benková, Eva
id: 38F4F166-F248-11E8-B48F-1D18A9856A87
last_name: Benková
orcid: 0000-0002-8510-9739
citation:
ama: Benková E. Plant hormones in interactions with the environment. Plant Molecular
Biology. 2016;91(6):597. doi:10.1007/s11103-016-0501-8
apa: Benková, E. (2016). Plant hormones in interactions with the environment. Plant
Molecular Biology. Springer. https://doi.org/10.1007/s11103-016-0501-8
chicago: Benková, Eva. “Plant Hormones in Interactions with the Environment.” Plant
Molecular Biology. Springer, 2016. https://doi.org/10.1007/s11103-016-0501-8.
ieee: E. Benková, “Plant hormones in interactions with the environment,” Plant
Molecular Biology, vol. 91, no. 6. Springer, p. 597, 2016.
ista: Benková E. 2016. Plant hormones in interactions with the environment. Plant
Molecular Biology. 91(6), 597.
mla: Benková, Eva. “Plant Hormones in Interactions with the Environment.” Plant
Molecular Biology, vol. 91, no. 6, Springer, 2016, p. 597, doi:10.1007/s11103-016-0501-8.
short: E. Benková, Plant Molecular Biology 91 (2016) 597.
date_created: 2018-12-11T11:51:03Z
date_published: 2016-08-01T00:00:00Z
date_updated: 2021-01-12T06:49:31Z
day: '01'
ddc:
- '581'
department:
- _id: EvBe
doi: 10.1007/s11103-016-0501-8
file:
- access_level: open_access
checksum: 0ffb7a15c5336b3a55248cc67021a825
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:18:28Z
date_updated: 2020-07-14T12:44:42Z
file_id: '5349'
file_name: IST-2016-697-v1+1_s11103-016-0501-8.pdf
file_size: 297282
relation: main_file
file_date_updated: 2020-07-14T12:44:42Z
has_accepted_license: '1'
intvolume: ' 91'
issue: '6'
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
page: '597'
publication: Plant Molecular Biology
publication_status: published
publisher: Springer
publist_id: '6052'
pubrep_id: '697'
quality_controlled: '1'
scopus_import: 1
status: public
title: Plant hormones in interactions with the environment
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 91
year: '2016'
...
---
_id: '1270'
abstract:
- lang: eng
text: A crucial step in the early development of multicellular organisms involves
the establishment of spatial patterns of gene expression which later direct proliferating
cells to take on different cell fates. These patterns enable the cells to infer
their global position within a tissue or an organism by reading out local gene
expression levels. The patterning system is thus said to encode positional information,
a concept that was formalized recently in the framework of information theory.
Here we introduce a toy model of patterning in one spatial dimension, which can
be seen as an extension of Wolpert's paradigmatic "French Flag" model,
to patterning by several interacting, spatially coupled genes subject to intrinsic
and extrinsic noise. Our model, a variant of an Ising spin system, allows us to
systematically explore expression patterns that optimally encode positional information.
We find that optimal patterning systems use positional cues, as in the French
Flag model, together with gene-gene interactions to generate combinatorial codes
for position which we call "Counter" patterns. Counter patterns can
also be stabilized against noise and variations in system size or morphogen dosage
by longer-range spatial interactions of the type invoked in the Turing model.
The simple setup proposed here qualitatively captures many of the experimentally
observed properties of biological patterning systems and allows them to be studied
in a single, theoretically consistent framework.
acknowledgement: The authors would like to thank Thomas Sokolowski and Filipe Tostevin
for helpful discussions. PH and UG were funded by the German Excellence Initiative
via the program "Nanosystems Initiative Munich" (https://www.nano-initiative-munich.de)
and the German Research Foundation via the SFB 1032 "Nanoagents for Spatiotemporal
Control of Molecular and Cellular Reactions" (http://www.sfb1032.physik.uni-muenchen.de).
GT was funded by the Austrian Science Fund (FWF P 28844) (http://www.fwf.ac.at).
article_number: e0163628
author:
- first_name: Patrick
full_name: Hillenbrand, Patrick
last_name: Hillenbrand
- first_name: Ulrich
full_name: Gerland, Ulrich
last_name: Gerland
- first_name: Gasper
full_name: Tkacik, Gasper
id: 3D494DCA-F248-11E8-B48F-1D18A9856A87
last_name: Tkacik
orcid: 0000-0002-6699-1455
citation:
ama: 'Hillenbrand P, Gerland U, Tkačik G. Beyond the French flag model: Exploiting
spatial and gene regulatory interactions for positional information. PLoS One.
2016;11(9). doi:10.1371/journal.pone.0163628'
apa: 'Hillenbrand, P., Gerland, U., & Tkačik, G. (2016). Beyond the French flag
model: Exploiting spatial and gene regulatory interactions for positional information.
PLoS One. Public Library of Science. https://doi.org/10.1371/journal.pone.0163628'
chicago: 'Hillenbrand, Patrick, Ulrich Gerland, and Gašper Tkačik. “Beyond the French
Flag Model: Exploiting Spatial and Gene Regulatory Interactions for Positional
Information.” PLoS One. Public Library of Science, 2016. https://doi.org/10.1371/journal.pone.0163628.'
ieee: 'P. Hillenbrand, U. Gerland, and G. Tkačik, “Beyond the French flag model:
Exploiting spatial and gene regulatory interactions for positional information,”
PLoS One, vol. 11, no. 9. Public Library of Science, 2016.'
ista: 'Hillenbrand P, Gerland U, Tkačik G. 2016. Beyond the French flag model: Exploiting
spatial and gene regulatory interactions for positional information. PLoS One.
11(9), e0163628.'
mla: 'Hillenbrand, Patrick, et al. “Beyond the French Flag Model: Exploiting Spatial
and Gene Regulatory Interactions for Positional Information.” PLoS One,
vol. 11, no. 9, e0163628, Public Library of Science, 2016, doi:10.1371/journal.pone.0163628.'
short: P. Hillenbrand, U. Gerland, G. Tkačik, PLoS One 11 (2016).
date_created: 2018-12-11T11:51:03Z
date_published: 2016-09-27T00:00:00Z
date_updated: 2023-02-23T14:11:37Z
day: '27'
ddc:
- '571'
department:
- _id: GaTk
doi: 10.1371/journal.pone.0163628
file:
- access_level: open_access
checksum: 3d0d55d373096a033bd9cf79288c8586
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:10:47Z
date_updated: 2020-07-14T12:44:42Z
file_id: '4837'
file_name: IST-2016-696-v1+1_journal.pone.0163628.PDF
file_size: 4950415
relation: main_file
file_date_updated: 2020-07-14T12:44:42Z
has_accepted_license: '1'
intvolume: ' 11'
issue: '9'
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
project:
- _id: 254E9036-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P28844-B27
name: Biophysics of information processing in gene regulation
publication: PLoS One
publication_status: published
publisher: Public Library of Science
publist_id: '6050'
pubrep_id: '696'
quality_controlled: '1'
related_material:
record:
- id: '9869'
relation: research_data
status: public
- id: '9870'
relation: research_data
status: public
- id: '9871'
relation: research_data
status: public
scopus_import: 1
status: public
title: 'Beyond the French flag model: Exploiting spatial and gene regulatory interactions
for positional information'
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 11
year: '2016'
...