Hydrological Impact of the New ECMWF Multi-Layer Snow Scheme
The representation of snow is a crucial aspect of land-surface modelling, as it has a strong influence on energy and water balances. Snow schemes with multiple layers have been shown to better describe the snowpack evolution and bring improvements to soil freezing and some hydrological processes. In...
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Uppsala universitet, Luft-, vatten- och landskapslära
2022
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Online Access: | http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-477770 https://doi.org/10.3390/atmos13050727 |
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ftuppsalauniv:oai:DiVA.org:uu-477770 2023-05-15T17:56:55+02:00 Hydrological Impact of the New ECMWF Multi-Layer Snow Scheme Zsoter, Ervin Arduini, Gabriele Prudhomme, Christel Stephens, Elisabeth Cloke, Hannah L. 2022 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-477770 https://doi.org/10.3390/atmos13050727 eng eng Uppsala universitet, Luft-, vatten- och landskapslära European Ctr Medium Range Weather Forecasts, Shinfield Pk, Reading RG2 9AX, Berks, England.;Univ Reading, Dept Geog & Environm Sci, Reading RG6 6AB, Berks, England. European Ctr Medium Range Weather Forecasts, Shinfield Pk, Reading RG2 9AX, Berks, England. Univ Reading, Dept Meteorol, Reading RG6 6BB, Berks, England.;Red Cross Red Crescent Climate Ctr, NL-2593 HT The Hague, Netherlands. Univ Reading, Dept Geog & Environm Sci, Reading RG6 6AB, Berks, England.;Univ Reading, Dept Meteorol, Reading RG6 6BB, Berks, England.;Ctr Nat Hazards & Disaster Sci CNDS, S-75236 Uppsala, Sweden. MDPI Atmosphere, 2073-4433, 2022, 13:5, orcid:0000-0002-7998-0130 orcid:0000-0002-6564-1699 orcid:0000-0002-1472-868x http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-477770 doi:10.3390/atmos13050727 ISI:000803501500001 info:eu-repo/semantics/openAccess land-surface modelling snow scheme hydrological processes river discharge surface runoff permafrost Oceanography Hydrology and Water Resources Oceanografi hydrologi och vattenresurser Climate Research Klimatforskning Article in journal info:eu-repo/semantics/article text 2022 ftuppsalauniv https://doi.org/10.3390/atmos13050727 2023-02-23T21:59:30Z The representation of snow is a crucial aspect of land-surface modelling, as it has a strong influence on energy and water balances. Snow schemes with multiple layers have been shown to better describe the snowpack evolution and bring improvements to soil freezing and some hydrological processes. In this paper, the wider hydrological impact of the multi-layer snow scheme, implemented in the ECLand model, was analyzed globally on hundreds of catchments. ERA5-forced reanalysis simulations of ECLand were coupled to CaMa-Flood, as the hydrodynamic model to produce river discharge. Different sensitivity experiments were conducted to evaluate the impact of the ECLand snow and soil freezing scheme changes on the terrestrial hydrological processes, with particular focus on permafrost. It was found that the default multi-layer snow scheme can generally improve the river discharge simulation, with the exception of permafrost catchments, where snowmelt-driven floods are largely underestimated, due to the lack of surface runoff. It was also found that appropriate changes in the snow vertical discretization, destructive metamorphism, snow-soil thermal conductivity and soil freeze temperature could lead to large river discharge improvements in permafrost by adjusting the evolution of soil temperature, infiltration and the partitioning between surface and subsurface runoff. Article in Journal/Newspaper permafrost Uppsala University: Publications (DiVA) Atmosphere 13 5 727 |
institution |
Open Polar |
collection |
Uppsala University: Publications (DiVA) |
op_collection_id |
ftuppsalauniv |
language |
English |
topic |
land-surface modelling snow scheme hydrological processes river discharge surface runoff permafrost Oceanography Hydrology and Water Resources Oceanografi hydrologi och vattenresurser Climate Research Klimatforskning |
spellingShingle |
land-surface modelling snow scheme hydrological processes river discharge surface runoff permafrost Oceanography Hydrology and Water Resources Oceanografi hydrologi och vattenresurser Climate Research Klimatforskning Zsoter, Ervin Arduini, Gabriele Prudhomme, Christel Stephens, Elisabeth Cloke, Hannah L. Hydrological Impact of the New ECMWF Multi-Layer Snow Scheme |
topic_facet |
land-surface modelling snow scheme hydrological processes river discharge surface runoff permafrost Oceanography Hydrology and Water Resources Oceanografi hydrologi och vattenresurser Climate Research Klimatforskning |
description |
The representation of snow is a crucial aspect of land-surface modelling, as it has a strong influence on energy and water balances. Snow schemes with multiple layers have been shown to better describe the snowpack evolution and bring improvements to soil freezing and some hydrological processes. In this paper, the wider hydrological impact of the multi-layer snow scheme, implemented in the ECLand model, was analyzed globally on hundreds of catchments. ERA5-forced reanalysis simulations of ECLand were coupled to CaMa-Flood, as the hydrodynamic model to produce river discharge. Different sensitivity experiments were conducted to evaluate the impact of the ECLand snow and soil freezing scheme changes on the terrestrial hydrological processes, with particular focus on permafrost. It was found that the default multi-layer snow scheme can generally improve the river discharge simulation, with the exception of permafrost catchments, where snowmelt-driven floods are largely underestimated, due to the lack of surface runoff. It was also found that appropriate changes in the snow vertical discretization, destructive metamorphism, snow-soil thermal conductivity and soil freeze temperature could lead to large river discharge improvements in permafrost by adjusting the evolution of soil temperature, infiltration and the partitioning between surface and subsurface runoff. |
format |
Article in Journal/Newspaper |
author |
Zsoter, Ervin Arduini, Gabriele Prudhomme, Christel Stephens, Elisabeth Cloke, Hannah L. |
author_facet |
Zsoter, Ervin Arduini, Gabriele Prudhomme, Christel Stephens, Elisabeth Cloke, Hannah L. |
author_sort |
Zsoter, Ervin |
title |
Hydrological Impact of the New ECMWF Multi-Layer Snow Scheme |
title_short |
Hydrological Impact of the New ECMWF Multi-Layer Snow Scheme |
title_full |
Hydrological Impact of the New ECMWF Multi-Layer Snow Scheme |
title_fullStr |
Hydrological Impact of the New ECMWF Multi-Layer Snow Scheme |
title_full_unstemmed |
Hydrological Impact of the New ECMWF Multi-Layer Snow Scheme |
title_sort |
hydrological impact of the new ecmwf multi-layer snow scheme |
publisher |
Uppsala universitet, Luft-, vatten- och landskapslära |
publishDate |
2022 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-477770 https://doi.org/10.3390/atmos13050727 |
genre |
permafrost |
genre_facet |
permafrost |
op_relation |
Atmosphere, 2073-4433, 2022, 13:5, orcid:0000-0002-7998-0130 orcid:0000-0002-6564-1699 orcid:0000-0002-1472-868x http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-477770 doi:10.3390/atmos13050727 ISI:000803501500001 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3390/atmos13050727 |
container_title |
Atmosphere |
container_volume |
13 |
container_issue |
5 |
container_start_page |
727 |
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1766165234467209216 |