Testing and application of a model for snow redistribution (Snow_Blow) in the Ellsworth Mountains, Antarctica
Wind-driven snow redistribution can increase the spatial heterogeneity of snow accumulation on ice caps and ice sheets, and may prove crucial for the initiation and survival of glaciers in areas of marginal glaciation. We present a snowdrift model (Snow_Blow), which extends and improves the model of...
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ftloughboroughun:oai:figshare.com:article/9693104 2023-05-15T13:33:44+02:00 Testing and application of a model for snow redistribution (Snow_Blow) in the Ellsworth Mountains, Antarctica Stephanie Mills Anne Le Brocq Kate Winter Michael Smith John Hillier Ekaterina Ardakova Clare Boston David Sugden John Woodward 2019-10-07T00:00:00Z https://figshare.com/articles/journal_contribution/Testing_and_application_of_a_model_for_snow_redistribution_Snow_Blow_in_the_Ellsworth_Mountains_Antarctica/9693104 unknown 2134/9693104.v1 https://figshare.com/articles/journal_contribution/Testing_and_application_of_a_model_for_snow_redistribution_Snow_Blow_in_the_Ellsworth_Mountains_Antarctica/9693104 CC BY 4.0 CC-BY Uncategorized Antarctic glaciology Glaciological model experiments Wind-blown snow Text Journal contribution 2019 ftloughboroughun 2022-01-01T19:25:48Z Wind-driven snow redistribution can increase the spatial heterogeneity of snow accumulation on ice caps and ice sheets, and may prove crucial for the initiation and survival of glaciers in areas of marginal glaciation. We present a snowdrift model (Snow_Blow), which extends and improves the model of Purves et al. (1999). The model calculates spatial variations in relative snow accumulation that result from variations in topography, using a digital elevation model (DEM) and wind direction as inputs. Improvements include snow redistribution using a flux routing algorithm, DEM resolution independence and the addition of a slope curvature component. This paper tests Snow_Blow in Antarctica (a modern environment) and reveals its potential for application in palaeo-environmental settings, where input meteorological data are unavailable and difficult to estimate. Specifically, Snow_Blow is applied to the Ellsworth Mountains in West Antarctica where ablation is considered to be predominantly related to wind erosion processes. We find that Snow_Blow is able to replicate well the existing distribution of accumulating snow and snow erosion as recorded in and around Blue Ice Areas. Lastly, a variety of model parameters are tested, including depositional distance and erosion vs wind speed, to provide the most likely input parameters for palaeo-environmental reconstructions. Other Non-Article Part of Journal/Newspaper Antarc* Antarctic Antarctica West Antarctica Loughborough University: Figshare Antarctic Ellsworth Mountains ENVELOPE(-85.000,-85.000,-78.750,-78.750) West Antarctica |
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Open Polar |
collection |
Loughborough University: Figshare |
op_collection_id |
ftloughboroughun |
language |
unknown |
topic |
Uncategorized Antarctic glaciology Glaciological model experiments Wind-blown snow |
spellingShingle |
Uncategorized Antarctic glaciology Glaciological model experiments Wind-blown snow Stephanie Mills Anne Le Brocq Kate Winter Michael Smith John Hillier Ekaterina Ardakova Clare Boston David Sugden John Woodward Testing and application of a model for snow redistribution (Snow_Blow) in the Ellsworth Mountains, Antarctica |
topic_facet |
Uncategorized Antarctic glaciology Glaciological model experiments Wind-blown snow |
description |
Wind-driven snow redistribution can increase the spatial heterogeneity of snow accumulation on ice caps and ice sheets, and may prove crucial for the initiation and survival of glaciers in areas of marginal glaciation. We present a snowdrift model (Snow_Blow), which extends and improves the model of Purves et al. (1999). The model calculates spatial variations in relative snow accumulation that result from variations in topography, using a digital elevation model (DEM) and wind direction as inputs. Improvements include snow redistribution using a flux routing algorithm, DEM resolution independence and the addition of a slope curvature component. This paper tests Snow_Blow in Antarctica (a modern environment) and reveals its potential for application in palaeo-environmental settings, where input meteorological data are unavailable and difficult to estimate. Specifically, Snow_Blow is applied to the Ellsworth Mountains in West Antarctica where ablation is considered to be predominantly related to wind erosion processes. We find that Snow_Blow is able to replicate well the existing distribution of accumulating snow and snow erosion as recorded in and around Blue Ice Areas. Lastly, a variety of model parameters are tested, including depositional distance and erosion vs wind speed, to provide the most likely input parameters for palaeo-environmental reconstructions. |
format |
Other Non-Article Part of Journal/Newspaper |
author |
Stephanie Mills Anne Le Brocq Kate Winter Michael Smith John Hillier Ekaterina Ardakova Clare Boston David Sugden John Woodward |
author_facet |
Stephanie Mills Anne Le Brocq Kate Winter Michael Smith John Hillier Ekaterina Ardakova Clare Boston David Sugden John Woodward |
author_sort |
Stephanie Mills |
title |
Testing and application of a model for snow redistribution (Snow_Blow) in the Ellsworth Mountains, Antarctica |
title_short |
Testing and application of a model for snow redistribution (Snow_Blow) in the Ellsworth Mountains, Antarctica |
title_full |
Testing and application of a model for snow redistribution (Snow_Blow) in the Ellsworth Mountains, Antarctica |
title_fullStr |
Testing and application of a model for snow redistribution (Snow_Blow) in the Ellsworth Mountains, Antarctica |
title_full_unstemmed |
Testing and application of a model for snow redistribution (Snow_Blow) in the Ellsworth Mountains, Antarctica |
title_sort |
testing and application of a model for snow redistribution (snow_blow) in the ellsworth mountains, antarctica |
publishDate |
2019 |
url |
https://figshare.com/articles/journal_contribution/Testing_and_application_of_a_model_for_snow_redistribution_Snow_Blow_in_the_Ellsworth_Mountains_Antarctica/9693104 |
long_lat |
ENVELOPE(-85.000,-85.000,-78.750,-78.750) |
geographic |
Antarctic Ellsworth Mountains West Antarctica |
geographic_facet |
Antarctic Ellsworth Mountains West Antarctica |
genre |
Antarc* Antarctic Antarctica West Antarctica |
genre_facet |
Antarc* Antarctic Antarctica West Antarctica |
op_relation |
2134/9693104.v1 https://figshare.com/articles/journal_contribution/Testing_and_application_of_a_model_for_snow_redistribution_Snow_Blow_in_the_Ellsworth_Mountains_Antarctica/9693104 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
_version_ |
1766045572234477568 |