Forcing the snow-cover model SNOWPACK with forecasted weather data
Avalanche danger is often estimated based on snow cover stratigraphy and snow stability data. In Canada, single forecasting regions are very large (>50 000 km2) and snow cover data are often not available. To provide additional information on the snow cover and its seasonal evolution the Swiss sn...
Published in: | The Cryosphere |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Copernicus Publications
2011
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00026438 2023-05-15T18:32:32+02:00 Forcing the snow-cover model SNOWPACK with forecasted weather data Bellaire, S. Jamieson, J. B. Fierz, C. 2011-12 electronic https://doi.org/10.5194/tc-5-1115-2011 https://noa.gwlb.de/receive/cop_mods_00026438 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00026393/tc-5-1115-2011.pdf https://tc.copernicus.org/articles/5/1115/2011/tc-5-1115-2011.pdf eng eng Copernicus Publications The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-5-1115-2011 https://noa.gwlb.de/receive/cop_mods_00026438 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00026393/tc-5-1115-2011.pdf https://tc.copernicus.org/articles/5/1115/2011/tc-5-1115-2011.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2011 ftnonlinearchiv https://doi.org/10.5194/tc-5-1115-2011 2022-02-08T22:49:13Z Avalanche danger is often estimated based on snow cover stratigraphy and snow stability data. In Canada, single forecasting regions are very large (>50 000 km2) and snow cover data are often not available. To provide additional information on the snow cover and its seasonal evolution the Swiss snow cover model SNOWPACK was therefore coupled with a regional weather forecasting model GEM15. The output of GEM15 was compared to meteorological as well as snow cover data from Mt. Fidelity, British Columbia, Canada, for five winters between 2005 and 2010. Precipitation amounts are most difficult to predict for weather forecasting models. Therefore, we first assess the capability of the model chain to forecast new snow amounts and consequently snow depth. Forecasted precipitation amounts were generally over-estimated. The forecasted data were therefore filtered and used as input for the snow cover model. Comparison between the model output and manual observations showed that after pre-processing the input data the snow depth and new snow events were well modelled. In a case study two key factors of snow cover instability, i.e. surface hoar formation and crust formation were investigated at a single point. Over half of the relevant critical layers were reproduced. Overall, the model chain shows promising potential as a future forecasting tool for avalanche warning services in Canadian data sparse areas and could thus well be applied to similarly large regions elsewhere. However, a more detailed analysis of the simulated snow cover structure is still required. Article in Journal/Newspaper The Cryosphere Niedersächsisches Online-Archiv NOA British Columbia ENVELOPE(-125.003,-125.003,54.000,54.000) Canada The Cryosphere 5 4 1115 1125 |
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Open Polar |
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Niedersächsisches Online-Archiv NOA |
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ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Bellaire, S. Jamieson, J. B. Fierz, C. Forcing the snow-cover model SNOWPACK with forecasted weather data |
topic_facet |
article Verlagsveröffentlichung |
description |
Avalanche danger is often estimated based on snow cover stratigraphy and snow stability data. In Canada, single forecasting regions are very large (>50 000 km2) and snow cover data are often not available. To provide additional information on the snow cover and its seasonal evolution the Swiss snow cover model SNOWPACK was therefore coupled with a regional weather forecasting model GEM15. The output of GEM15 was compared to meteorological as well as snow cover data from Mt. Fidelity, British Columbia, Canada, for five winters between 2005 and 2010. Precipitation amounts are most difficult to predict for weather forecasting models. Therefore, we first assess the capability of the model chain to forecast new snow amounts and consequently snow depth. Forecasted precipitation amounts were generally over-estimated. The forecasted data were therefore filtered and used as input for the snow cover model. Comparison between the model output and manual observations showed that after pre-processing the input data the snow depth and new snow events were well modelled. In a case study two key factors of snow cover instability, i.e. surface hoar formation and crust formation were investigated at a single point. Over half of the relevant critical layers were reproduced. Overall, the model chain shows promising potential as a future forecasting tool for avalanche warning services in Canadian data sparse areas and could thus well be applied to similarly large regions elsewhere. However, a more detailed analysis of the simulated snow cover structure is still required. |
format |
Article in Journal/Newspaper |
author |
Bellaire, S. Jamieson, J. B. Fierz, C. |
author_facet |
Bellaire, S. Jamieson, J. B. Fierz, C. |
author_sort |
Bellaire, S. |
title |
Forcing the snow-cover model SNOWPACK with forecasted weather data |
title_short |
Forcing the snow-cover model SNOWPACK with forecasted weather data |
title_full |
Forcing the snow-cover model SNOWPACK with forecasted weather data |
title_fullStr |
Forcing the snow-cover model SNOWPACK with forecasted weather data |
title_full_unstemmed |
Forcing the snow-cover model SNOWPACK with forecasted weather data |
title_sort |
forcing the snow-cover model snowpack with forecasted weather data |
publisher |
Copernicus Publications |
publishDate |
2011 |
url |
https://doi.org/10.5194/tc-5-1115-2011 https://noa.gwlb.de/receive/cop_mods_00026438 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00026393/tc-5-1115-2011.pdf https://tc.copernicus.org/articles/5/1115/2011/tc-5-1115-2011.pdf |
long_lat |
ENVELOPE(-125.003,-125.003,54.000,54.000) |
geographic |
British Columbia Canada |
geographic_facet |
British Columbia Canada |
genre |
The Cryosphere |
genre_facet |
The Cryosphere |
op_relation |
The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-5-1115-2011 https://noa.gwlb.de/receive/cop_mods_00026438 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00026393/tc-5-1115-2011.pdf https://tc.copernicus.org/articles/5/1115/2011/tc-5-1115-2011.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/tc-5-1115-2011 |
container_title |
The Cryosphere |
container_volume |
5 |
container_issue |
4 |
container_start_page |
1115 |
op_container_end_page |
1125 |
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1766216672253837312 |