---
_id: '12639'
abstract:
- lang: eng
text: 'In the headwater catchments of the main Asian rivers, glaciohydrological
models are a useful tool to anticipate impacts of climatic changes. However, the
reliability of their projections strongly depends on the quality and quantity
of data that are available for parameter estimation, model calibration and validation,
as well as on the accuracy of climate change projections. In this study the physically
oriented, glaciohydrological model TOPKAPI-ETH is used to simulate future changes
in snow, glacier, and runoff from the Hunza River Basin in northern Pakistan.
Three key sources of model uncertainty in future runoff projections are compared:
model parameters, climate projections, and natural climate variability. A novel
approach, applicable also to ungauged catchments, is used to determine which model
parameters and model components significantly affect the overall model uncertainty.
We show that the model is capable of reproducing streamflow and glacier mass balances,
but that all analyzed sources of uncertainty significantly affect the reliability
of future projections, and that their effect is variable in time and in space.
The effect of parametric uncertainty often exceeds the impact of climate uncertainty
and natural climate variability, especially in heavily glacierized subcatchments.
The results of the uncertainty analysis allow detailed recommendations on network
design and the timing and location of field measurements, which could efficiently
help to reduce model uncertainty in the future.'
article_processing_charge: No
article_type: original
author:
- first_name: S.
full_name: Ragettli, S.
last_name: Ragettli
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
- first_name: R.
full_name: Bordoy, R.
last_name: Bordoy
- first_name: W. W.
full_name: Immerzeel, W. W.
last_name: Immerzeel
citation:
ama: Ragettli S, Pellicciotti F, Bordoy R, Immerzeel WW. Sources of uncertainty
in modeling the glaciohydrological response of a Karakoram watershed to climate
change. Water Resources Research. 2013;49(9):6048-6066. doi:10.1002/wrcr.20450
apa: Ragettli, S., Pellicciotti, F., Bordoy, R., & Immerzeel, W. W. (2013).
Sources of uncertainty in modeling the glaciohydrological response of a Karakoram
watershed to climate change. Water Resources Research. American Geophysical
Union. https://doi.org/10.1002/wrcr.20450
chicago: Ragettli, S., Francesca Pellicciotti, R. Bordoy, and W. W. Immerzeel. “Sources
of Uncertainty in Modeling the Glaciohydrological Response of a Karakoram Watershed
to Climate Change.” Water Resources Research. American Geophysical Union,
2013. https://doi.org/10.1002/wrcr.20450.
ieee: S. Ragettli, F. Pellicciotti, R. Bordoy, and W. W. Immerzeel, “Sources of
uncertainty in modeling the glaciohydrological response of a Karakoram watershed
to climate change,” Water Resources Research, vol. 49, no. 9. American
Geophysical Union, pp. 6048–6066, 2013.
ista: Ragettli S, Pellicciotti F, Bordoy R, Immerzeel WW. 2013. Sources of uncertainty
in modeling the glaciohydrological response of a Karakoram watershed to climate
change. Water Resources Research. 49(9), 6048–6066.
mla: Ragettli, S., et al. “Sources of Uncertainty in Modeling the Glaciohydrological
Response of a Karakoram Watershed to Climate Change.” Water Resources Research,
vol. 49, no. 9, American Geophysical Union, 2013, pp. 6048–66, doi:10.1002/wrcr.20450.
short: S. Ragettli, F. Pellicciotti, R. Bordoy, W.W. Immerzeel, Water Resources
Research 49 (2013) 6048–6066.
date_created: 2023-02-20T08:17:12Z
date_published: 2013-03-01T00:00:00Z
date_updated: 2023-02-24T08:16:19Z
day: '01'
doi: 10.1002/wrcr.20450
extern: '1'
intvolume: ' 49'
issue: '9'
keyword:
- Water Science and Technology
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1002/wrcr.20450
month: '03'
oa: 1
oa_version: Published Version
page: 6048-6066
publication: Water Resources Research
publication_identifier:
issn:
- 0043-1397
publication_status: published
publisher: American Geophysical Union
quality_controlled: '1'
scopus_import: '1'
status: public
title: Sources of uncertainty in modeling the glaciohydrological response of a Karakoram
watershed to climate change
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 49
year: '2013'
...
---
_id: '12648'
abstract:
- lang: eng
text: Distributed glacier melt models generally assume that the glacier surface
consists of bare exposed ice and snow. In reality, many glaciers are wholly or
partially covered in layers of debris that tend to suppress ablation rates. In
this paper, an existing physically based point model for the ablation of debris-covered
ice is incorporated in a distributed melt model and applied to Haut Glacier d'Arolla,
Switzerland, which has three large patches of debris cover on its surface. The
model is based on a 10 m resolution digital elevation model (DEM) of the area;
each glacier pixel in the DEM is defined as either bare or debris-covered ice,
and may be covered in snow that must be melted off before ice ablation is assumed
to occur. Each debris-covered pixel is assigned a debris thickness value using
probability distributions based on over 1000 manual thickness measurements. Locally
observed meteorological data are used to run energy balance calculations in every
pixel, using an approach suitable for snow, bare ice or debris-covered ice as
appropriate. The use of the debris model significantly reduces the total ablation
in the debris-covered areas, however the precise reduction is sensitive to the
temperature extrapolation used in the model distribution because air near the
debris surface tends to be slightly warmer than over bare ice. Overall results
suggest that the debris patches, which cover 10% of the glacierized area, reduce
total runoff from the glacierized part of the basin by up to 7%.
article_number: D18105
article_processing_charge: No
article_type: original
author:
- first_name: T. D.
full_name: Reid, T. D.
last_name: Reid
- 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: B. W.
full_name: Brock, B. W.
last_name: Brock
citation:
ama: 'Reid TD, Carenzo M, Pellicciotti F, Brock BW. Including debris cover effects
in a distributed model of glacier ablation. Journal of Geophysical Research:
Atmospheres. 2012;117(D18). doi:10.1029/2012jd017795'
apa: 'Reid, T. D., Carenzo, M., Pellicciotti, F., & Brock, B. W. (2012). Including
debris cover effects in a distributed model of glacier ablation. Journal of
Geophysical Research: Atmospheres. American Geophysical Union. https://doi.org/10.1029/2012jd017795'
chicago: 'Reid, T. D., M. Carenzo, Francesca Pellicciotti, and B. W. Brock. “Including
Debris Cover Effects in a Distributed Model of Glacier Ablation.” Journal of
Geophysical Research: Atmospheres. American Geophysical Union, 2012. https://doi.org/10.1029/2012jd017795.'
ieee: 'T. D. Reid, M. Carenzo, F. Pellicciotti, and B. W. Brock, “Including debris
cover effects in a distributed model of glacier ablation,” Journal of Geophysical
Research: Atmospheres, vol. 117, no. D18. American Geophysical Union, 2012.'
ista: 'Reid TD, Carenzo M, Pellicciotti F, Brock BW. 2012. Including debris cover
effects in a distributed model of glacier ablation. Journal of Geophysical Research:
Atmospheres. 117(D18), D18105.'
mla: 'Reid, T. D., et al. “Including Debris Cover Effects in a Distributed Model
of Glacier Ablation.” Journal of Geophysical Research: Atmospheres, vol.
117, no. D18, D18105, American Geophysical Union, 2012, doi:10.1029/2012jd017795.'
short: 'T.D. Reid, M. Carenzo, F. Pellicciotti, B.W. Brock, Journal of Geophysical
Research: Atmospheres 117 (2012).'
date_created: 2023-02-20T08:17:57Z
date_published: 2012-09-27T00:00:00Z
date_updated: 2023-02-20T10:57:31Z
day: '27'
doi: 10.1029/2012jd017795
extern: '1'
intvolume: ' 117'
issue: D18
keyword:
- Paleontology
- Space and Planetary Science
- Earth and Planetary Sciences (miscellaneous)
- Atmospheric Science
- Earth-Surface Processes
- Geochemistry and Petrology
- Soil Science
- Water Science and Technology
- Ecology
- Aquatic Science
- Forestry
- Oceanography
- Geophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1029/2012JD017795
month: '09'
oa: 1
oa_version: Published Version
publication: 'Journal of Geophysical Research: Atmospheres'
publication_identifier:
issn:
- 0148-0227
publication_status: published
publisher: American Geophysical Union
quality_controlled: '1'
scopus_import: '1'
status: public
title: Including debris cover effects in a distributed model of glacier ablation
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 117
year: '2012'
...
---
_id: '12651'
abstract:
- lang: eng
text: Temperature data from three Automatic Weather Stations and twelve Temperature
Loggers are used to investigate the spatiotemporal variability of temperature
over a glacier, its main atmospheric controls, the suitability of extrapolation
techniques and their effect on melt modeling. We use data collected on Juncal
Norte Glacier, central Chile, during one ablation season. We examine temporal
and spatial variability in lapse rates (LRs), together with alternative statistical
interpolation methods. The main control over the glacier thermal regime is the
development of a katabatic boundary layer (KBL). Katabatic wind occurs at night
and in the morning and is eroded in the afternoon. LRs reveal strong diurnal variability,
with steeper LRs during the day when the katabatic wind weakens and shallower
LRs during the night and morning. We suggest that temporally variable LRs should
be used to account for the observed change. They tend to be steeper than equivalent
constant LRs, and therefore result in a reduction in simulated melt compared to
use of constant LRs when extrapolating from lower to higher elevations. In addition
to the temporal variability, the temperature-elevation relationship varies also
in space. Differences are evident between local LRs and including such variability
in melt modeling affects melt simulations. Extrapolation methods based on the
spatial variability of the observations after removal of the elevation trend,
such as Inverse Distance Weighting or Kriging, do not seem necessary for simulations
of gridded temperature data over a glacier.
article_number: D23109
article_processing_charge: No
article_type: original
author:
- first_name: L.
full_name: Petersen, L.
last_name: Petersen
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
citation:
ama: 'Petersen L, Pellicciotti F. Spatial and temporal variability of air temperature
on a melting glacier: Atmospheric controls, extrapolation methods and their effect
on melt modeling, Juncal Norte Glacier, Chile. Journal of Geophysical Research:
Atmospheres. 2011;116(D23). doi:10.1029/2011jd015842'
apa: 'Petersen, L., & Pellicciotti, F. (2011). Spatial and temporal variability
of air temperature on a melting glacier: Atmospheric controls, extrapolation methods
and their effect on melt modeling, Juncal Norte Glacier, Chile. Journal of
Geophysical Research: Atmospheres. American Geophysical Union. https://doi.org/10.1029/2011jd015842'
chicago: 'Petersen, L., and Francesca Pellicciotti. “Spatial and Temporal Variability
of Air Temperature on a Melting Glacier: Atmospheric Controls, Extrapolation Methods
and Their Effect on Melt Modeling, Juncal Norte Glacier, Chile.” Journal of
Geophysical Research: Atmospheres. American Geophysical Union, 2011. https://doi.org/10.1029/2011jd015842.'
ieee: 'L. Petersen and F. Pellicciotti, “Spatial and temporal variability of air
temperature on a melting glacier: Atmospheric controls, extrapolation methods
and their effect on melt modeling, Juncal Norte Glacier, Chile,” Journal of
Geophysical Research: Atmospheres, vol. 116, no. D23. American Geophysical
Union, 2011.'
ista: 'Petersen L, Pellicciotti F. 2011. Spatial and temporal variability of air
temperature on a melting glacier: Atmospheric controls, extrapolation methods
and their effect on melt modeling, Juncal Norte Glacier, Chile. Journal of Geophysical
Research: Atmospheres. 116(D23), D23109.'
mla: 'Petersen, L., and Francesca Pellicciotti. “Spatial and Temporal Variability
of Air Temperature on a Melting Glacier: Atmospheric Controls, Extrapolation Methods
and Their Effect on Melt Modeling, Juncal Norte Glacier, Chile.” Journal of
Geophysical Research: Atmospheres, vol. 116, no. D23, D23109, American Geophysical
Union, 2011, doi:10.1029/2011jd015842.'
short: 'L. Petersen, F. Pellicciotti, Journal of Geophysical Research: Atmospheres
116 (2011).'
date_created: 2023-02-20T08:18:14Z
date_published: 2011-12-16T00:00:00Z
date_updated: 2023-02-20T10:29:44Z
day: '16'
doi: 10.1029/2011jd015842
extern: '1'
intvolume: ' 116'
issue: D23
keyword:
- Paleontology
- Space and Planetary Science
- Earth and Planetary Sciences (miscellaneous)
- Atmospheric Science
- Earth-Surface Processes
- Geochemistry and Petrology
- Soil Science
- Water Science and Technology
- Ecology
- Aquatic Science
- Forestry
- Oceanography
- Geophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1029/2011JD01584
month: '12'
oa: 1
oa_version: Published Version
publication: 'Journal of Geophysical Research: Atmospheres'
publication_identifier:
issn:
- 0148-0227
publication_status: published
publisher: American Geophysical Union
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Spatial and temporal variability of air temperature on a melting glacier:
Atmospheric controls, extrapolation methods and their effect on melt modeling, Juncal
Norte Glacier, Chile'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 116
year: '2011'
...
---
_id: '12653'
abstract:
- lang: eng
text: 'Daily streamflow from stations close to five Swiss glaciers is analyzed for
trends with the Mann-Kendall test. We consider a common period of record (1974–2004)
and longer periods based on data availability. The trend statistical significance
is tested on annual and seasonal bases. We also examine changes in precipitation,
temperature, and snow cover characteristics. Highly glacierized basins show statistically
significant positive trends in annual streamflow caused by increasing streamflow
in spring and summer. Trends are more numerous and stronger at lower and mid than
at the upper quantiles. The basin characterized by lower glacier coverage, conversely,
does not exhibit consistently statistically significant trends. Changes in precipitation
are not sufficient to explain the observed streamflow trends. Air temperature
sees an increase in mean, minimum, and maximum values at all sites. Variations
in the seasonal snow accumulation and ablation process are evident. Solid precipitation
is decreasing at all sites and trends may be due to a shift from snowfall into
rainfall. Mean snow depth is also decreasing, and its duration is getting shorter
because of a decrease in solid precipitation and enhanced melting. Trend magnitude
attenuates with longer time series. Contrasting trends are detected for different
subperiods in the last 70 years: statistically significant negative trends are
observed in the periods 1944–1974 and 1954–1984 for Aletschgletscher, in contrast
with the results for the common period. These trends are explained by different
rates of ice volume changes, and the sign of trends is clearly related to phases
of positive or negative glacier mass balance.'
article_number: W10522
article_processing_charge: No
article_type: original
author:
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
- first_name: A.
full_name: Bauder, A.
last_name: Bauder
- first_name: M.
full_name: Parola, M.
last_name: Parola
citation:
ama: Pellicciotti F, Bauder A, Parola M. Effect of glaciers on streamflow trends
in the Swiss Alps. Water Resources Research. 2010;46(10). doi:10.1029/2009wr009039
apa: Pellicciotti, F., Bauder, A., & Parola, M. (2010). Effect of glaciers on
streamflow trends in the Swiss Alps. Water Resources Research. American
Geophysical Union. https://doi.org/10.1029/2009wr009039
chicago: Pellicciotti, Francesca, A. Bauder, and M. Parola. “Effect of Glaciers
on Streamflow Trends in the Swiss Alps.” Water Resources Research. American
Geophysical Union, 2010. https://doi.org/10.1029/2009wr009039.
ieee: F. Pellicciotti, A. Bauder, and M. Parola, “Effect of glaciers on streamflow
trends in the Swiss Alps,” Water Resources Research, vol. 46, no. 10. American
Geophysical Union, 2010.
ista: Pellicciotti F, Bauder A, Parola M. 2010. Effect of glaciers on streamflow
trends in the Swiss Alps. Water Resources Research. 46(10), W10522.
mla: Pellicciotti, Francesca, et al. “Effect of Glaciers on Streamflow Trends in
the Swiss Alps.” Water Resources Research, vol. 46, no. 10, W10522, American
Geophysical Union, 2010, doi:10.1029/2009wr009039.
short: F. Pellicciotti, A. Bauder, M. Parola, Water Resources Research 46 (2010).
date_created: 2023-02-20T08:18:27Z
date_published: 2010-10-01T00:00:00Z
date_updated: 2023-02-20T09:39:29Z
day: '01'
doi: 10.1029/2009wr009039
extern: '1'
intvolume: ' 46'
issue: '10'
keyword:
- Water Science and Technology
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1029/2009WR009039
month: '10'
oa: 1
oa_version: Published Version
publication: Water Resources Research
publication_identifier:
eissn:
- 1944-7973
issn:
- 0043-1397
publication_status: published
publisher: American Geophysical Union
quality_controlled: '1'
scopus_import: '1'
status: public
title: Effect of glaciers on streamflow trends in the Swiss Alps
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 46
year: '2010'
...
---
_id: '12656'
abstract:
- lang: eng
text: We use meteorological data from two automatic weather stations (AWS) on Juncal
Norte Glacier, central Chile, to investigate the glacier–climate interaction and
to test ablation models of different complexity. The semi-arid Central Andes are
characterized by dry summers, with precipitation close to zero, low relative humidity
and intense solar radiation. We show that katabatic forcing is dominant both on
the glacier tongue and in the fore field, and that low humidity and absence of
clouds cause strong radiative cooling of the glacier surface. Surface albedo is
basically constant for snow and ice, because of the scarcity of solid precipitation.
The energy balance of the glacier is simulated for a 2-month period in austral
summer using two models of different complexity, which differ in the inclusion
of the heat conduction flux into the snowpack and in the parameterization of the
incoming longwave radiation. Net shortwave radiation is the dominant component
of the energy balance. The sensible heat flux is always positive, while both the
net longwave radiation and latent heat flux are negative. Neglecting the subsurface
heat flux and corresponding variations in surface temperature leads to an overestimation
of ablation of 2% over a total of 3695 mm water equivalent (w.e.) at the end of
the season. Correct modelling of incoming longwave radiation is crucial, and we
suggest that parameterizations based on vapour pressure and air temperature should
be used rather than on computed cloud amount. We also used an enhanced temperature-index
model incorporating the shortwave radiation flux, which has two empirical parameters.
We apply it both with values of parameters obtained for Alpine glaciers and recalibrated
on Juncal Norte. The model recalibrated against the correct energy balance simulations
performs very well. The model parameters respond to the meteorological conditions
typical of this climatic setting.
article_processing_charge: No
article_type: original
author:
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
- first_name: Jakob
full_name: Helbing, Jakob
last_name: Helbing
- first_name: Andrés
full_name: Rivera, Andrés
last_name: Rivera
- first_name: Vincent
full_name: Favier, Vincent
last_name: Favier
- first_name: Javier
full_name: Corripio, Javier
last_name: Corripio
- first_name: José
full_name: Araos, José
last_name: Araos
- first_name: Jean-Emmanuel
full_name: Sicart, Jean-Emmanuel
last_name: Sicart
- first_name: Marco
full_name: Carenzo, Marco
last_name: Carenzo
citation:
ama: Pellicciotti F, Helbing J, Rivera A, et al. A study of the energy balance and
melt regime on Juncal Norte Glacier, semi-arid Andes of central Chile, using melt
models of different complexity. Hydrological Processes. 2008;22(19):3980-3997.
doi:10.1002/hyp.7085
apa: Pellicciotti, F., Helbing, J., Rivera, A., Favier, V., Corripio, J., Araos,
J., … Carenzo, M. (2008). A study of the energy balance and melt regime on Juncal
Norte Glacier, semi-arid Andes of central Chile, using melt models of different
complexity. Hydrological Processes. Wiley. https://doi.org/10.1002/hyp.7085
chicago: Pellicciotti, Francesca, Jakob Helbing, Andrés Rivera, Vincent Favier,
Javier Corripio, José Araos, Jean-Emmanuel Sicart, and Marco Carenzo. “A Study
of the Energy Balance and Melt Regime on Juncal Norte Glacier, Semi-Arid Andes
of Central Chile, Using Melt Models of Different Complexity.” Hydrological
Processes. Wiley, 2008. https://doi.org/10.1002/hyp.7085.
ieee: F. Pellicciotti et al., “A study of the energy balance and melt regime
on Juncal Norte Glacier, semi-arid Andes of central Chile, using melt models of
different complexity,” Hydrological Processes, vol. 22, no. 19. Wiley,
pp. 3980–3997, 2008.
ista: Pellicciotti F, Helbing J, Rivera A, Favier V, Corripio J, Araos J, Sicart
J-E, Carenzo M. 2008. A study of the energy balance and melt regime on Juncal
Norte Glacier, semi-arid Andes of central Chile, using melt models of different
complexity. Hydrological Processes. 22(19), 3980–3997.
mla: Pellicciotti, Francesca, et al. “A Study of the Energy Balance and Melt Regime
on Juncal Norte Glacier, Semi-Arid Andes of Central Chile, Using Melt Models of
Different Complexity.” Hydrological Processes, vol. 22, no. 19, Wiley,
2008, pp. 3980–97, doi:10.1002/hyp.7085.
short: F. Pellicciotti, J. Helbing, A. Rivera, V. Favier, J. Corripio, J. Araos,
J.-E. Sicart, M. Carenzo, Hydrological Processes 22 (2008) 3980–3997.
date_created: 2023-02-20T08:18:45Z
date_published: 2008-09-15T00:00:00Z
date_updated: 2023-02-20T08:48:33Z
day: '15'
doi: 10.1002/hyp.7085
extern: '1'
intvolume: ' 22'
issue: '19'
keyword:
- Water Science and Technology
language:
- iso: eng
month: '09'
oa_version: None
page: 3980-3997
publication: Hydrological Processes
publication_identifier:
eissn:
- 1099-1085
issn:
- 0885-6087
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: A study of the energy balance and melt regime on Juncal Norte Glacier, semi-arid
Andes of central Chile, using melt models of different complexity
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 22
year: '2008'
...
---
_id: '12658'
abstract:
- lang: eng
text: '[1] During the ablation period 2001 a glaciometeorological experiment was
carried out on Haut Glacier d''Arolla, Switzerland. Five meteorological stations
were installed on the glacier, and one permanent automatic weather station in
the glacier foreland. The altitudes of the stations ranged between 2500 and 3000
m a.s.l., and they were in operation from end of May to beginning of September
2001. The spatial arrangement of the stations and temporal duration of the measurements
generated a unique data set enabling the analysis of the spatial and temporal
variability of the meteorological variables across an alpine glacier. All measurements
were taken at a nominal height of 2 m, and hourly averages were derived for the
analysis. The wind regime was dominated by the glacier wind (mean value 2.8 m
s−1) but due to erosion by the synoptic gradient wind, occasionally the wind would
blow up the valley. A slight decrease in mean 2 m air temperatures with altitude
was found, however the 2 m air temperature gradient varied greatly and frequently
changed its sign. Mean relative humidity was 71% and exhibited limited spatial
variation. Mean incoming shortwave radiation and albedo both generally increased
with elevation. The different components of shortwave radiation are quantified
with a parameterization scheme. Resulting spatial variations are mainly due to
horizon obstruction and reflections from surrounding slopes, i.e., topography.
The effect of clouds accounts for a loss of 30% of the extraterrestrial flux.
Albedos derived from a Landsat TM image of 30 July show remarkably constant values,
in the range 0.49 to 0.50, across snow covered parts of the glacier, while albedo
is highly spatially variable below the zone of continuous snow cover. These results
are verified with ground measurements and compared with parameterized albedo.
Mean longwave radiative fluxes decreased with elevation due to lower air temperatures
and the effect of upper hemisphere slopes. It is shown through parameterization
that this effect would even be more pronounced without the effect of clouds. Results
are discussed with respect to a similar study which has been carried out on Pasterze
Glacier (Austria). The presented algorithms for interpolating, parameterizing
and simulating variables and parameters in alpine regions are integrated in the
software package AMUNDSEN which is freely available to be adapted and further
developed by the community.'
article_number: D03103
article_processing_charge: No
article_type: original
author:
- first_name: Ulrich
full_name: Strasser, Ulrich
last_name: Strasser
- first_name: Javier
full_name: Corripio, Javier
last_name: Corripio
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
- first_name: Paolo
full_name: Burlando, Paolo
last_name: Burlando
- first_name: Ben
full_name: Brock, Ben
last_name: Brock
- first_name: Martin
full_name: Funk, Martin
last_name: Funk
citation:
ama: 'Strasser U, Corripio J, Pellicciotti F, Burlando P, Brock B, Funk M. Spatial
and temporal variability of meteorological variables at Haut Glacier d’Arolla
(Switzerland) during the ablation season 2001: Measurements and simulations. Journal
of Geophysical Research: Atmospheres. 2004;109(D3). doi:10.1029/2003jd003973'
apa: 'Strasser, U., Corripio, J., Pellicciotti, F., Burlando, P., Brock, B., &
Funk, M. (2004). Spatial and temporal variability of meteorological variables
at Haut Glacier d’Arolla (Switzerland) during the ablation season 2001: Measurements
and simulations. Journal of Geophysical Research: Atmospheres. American
Geophysical Union. https://doi.org/10.1029/2003jd003973'
chicago: 'Strasser, Ulrich, Javier Corripio, Francesca Pellicciotti, Paolo Burlando,
Ben Brock, and Martin Funk. “Spatial and Temporal Variability of Meteorological
Variables at Haut Glacier d’Arolla (Switzerland) during the Ablation Season 2001:
Measurements and Simulations.” Journal of Geophysical Research: Atmospheres.
American Geophysical Union, 2004. https://doi.org/10.1029/2003jd003973.'
ieee: 'U. Strasser, J. Corripio, F. Pellicciotti, P. Burlando, B. Brock, and M.
Funk, “Spatial and temporal variability of meteorological variables at Haut Glacier
d’Arolla (Switzerland) during the ablation season 2001: Measurements and simulations,”
Journal of Geophysical Research: Atmospheres, vol. 109, no. D3. American
Geophysical Union, 2004.'
ista: 'Strasser U, Corripio J, Pellicciotti F, Burlando P, Brock B, Funk M. 2004.
Spatial and temporal variability of meteorological variables at Haut Glacier d’Arolla
(Switzerland) during the ablation season 2001: Measurements and simulations. Journal
of Geophysical Research: Atmospheres. 109(D3), D03103.'
mla: 'Strasser, Ulrich, et al. “Spatial and Temporal Variability of Meteorological
Variables at Haut Glacier d’Arolla (Switzerland) during the Ablation Season 2001:
Measurements and Simulations.” Journal of Geophysical Research: Atmospheres,
vol. 109, no. D3, D03103, American Geophysical Union, 2004, doi:10.1029/2003jd003973.'
short: 'U. Strasser, J. Corripio, F. Pellicciotti, P. Burlando, B. Brock, M. Funk,
Journal of Geophysical Research: Atmospheres 109 (2004).'
date_created: 2023-02-20T08:18:57Z
date_published: 2004-02-16T00:00:00Z
date_updated: 2023-02-20T08:40:21Z
day: '16'
doi: 10.1029/2003jd003973
extern: '1'
intvolume: ' 109'
issue: D3
keyword:
- Paleontology
- Space and Planetary Science
- Earth and Planetary Sciences (miscellaneous)
- Atmospheric Science
- Earth-Surface Processes
- Geochemistry and Petrology
- Soil Science
- Water Science and Technology
- Ecology
- Aquatic Science
- Forestry
- Oceanography
- Geophysics
language:
- iso: eng
month: '02'
oa_version: None
publication: 'Journal of Geophysical Research: Atmospheres'
publication_identifier:
issn:
- 0148-0227
publication_status: published
publisher: American Geophysical Union
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Spatial and temporal variability of meteorological variables at Haut Glacier
d''Arolla (Switzerland) during the ablation season 2001: Measurements and simulations'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 109
year: '2004'
...