Regional grid refinement in an Earth system model: impacts on the simulated Greenland surface mass balance
In this study, the resolution dependence of the simulated Greenland ice sheet surface mass balance (GrIS SMB) in the variable-resolution Community Earth System Model (VR-CESM) is investigated. Coupled atmosphere–land simulations are performed on two regionally refined grids over Greenland at 0.5∘ (∼...
Published in: | The Cryosphere |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2019
|
Subjects: | |
Online Access: | https://doi.org/10.5194/tc-13-1547-2019 https://noa.gwlb.de/receive/cop_mods_00002043 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00002001/tc-13-1547-2019.pdf https://tc.copernicus.org/articles/13/1547/2019/tc-13-1547-2019.pdf |
id |
ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00002043 |
---|---|
record_format |
openpolar |
spelling |
ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00002043 2023-05-15T16:27:00+02:00 Regional grid refinement in an Earth system model: impacts on the simulated Greenland surface mass balance van Kampenhout, Leonardus Rhoades, Alan M. Herrington, Adam R. Zarzycki, Colin M. Lenaerts, Jan T. M. Sacks, William J. van den Broeke, Michiel R. 2019-06 electronic https://doi.org/10.5194/tc-13-1547-2019 https://noa.gwlb.de/receive/cop_mods_00002043 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00002001/tc-13-1547-2019.pdf https://tc.copernicus.org/articles/13/1547/2019/tc-13-1547-2019.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-13-1547-2019 https://noa.gwlb.de/receive/cop_mods_00002043 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00002001/tc-13-1547-2019.pdf https://tc.copernicus.org/articles/13/1547/2019/tc-13-1547-2019.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2019 ftnonlinearchiv https://doi.org/10.5194/tc-13-1547-2019 2022-02-08T23:01:17Z In this study, the resolution dependence of the simulated Greenland ice sheet surface mass balance (GrIS SMB) in the variable-resolution Community Earth System Model (VR-CESM) is investigated. Coupled atmosphere–land simulations are performed on two regionally refined grids over Greenland at 0.5∘ (∼55 km) and 0.25∘ (∼28 km), maintaining a quasi-uniform resolution of 1∘ (∼111 km) over the rest of the globe. On the refined grids, the SMB in the accumulation zone is significantly improved compared to airborne radar and in situ observations, with a general wetting (more snowfall) at the margins and a drying (less snowfall) in the interior GrIS. Total GrIS precipitation decreases with resolution, which is in line with best-available regional climate model results. In the ablation zone, CESM starts developing a positive SMB bias with increased resolution in some basins, notably in the east and the north. The mismatch in ablation is linked to changes in cloud cover in VR-CESM, and a reduced effectiveness of the elevation classes subgrid parametrization in CESM. Overall, our pilot study introduces VR-CESM as a new tool in the cryospheric sciences, which could be used to dynamically downscale SMB in scenario simulations and to force dynamical ice sheet models through the CESM coupling framework. Article in Journal/Newspaper Greenland Ice Sheet The Cryosphere Niedersächsisches Online-Archiv NOA Greenland The Cryosphere 13 6 1547 1564 |
institution |
Open Polar |
collection |
Niedersächsisches Online-Archiv NOA |
op_collection_id |
ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung van Kampenhout, Leonardus Rhoades, Alan M. Herrington, Adam R. Zarzycki, Colin M. Lenaerts, Jan T. M. Sacks, William J. van den Broeke, Michiel R. Regional grid refinement in an Earth system model: impacts on the simulated Greenland surface mass balance |
topic_facet |
article Verlagsveröffentlichung |
description |
In this study, the resolution dependence of the simulated Greenland ice sheet surface mass balance (GrIS SMB) in the variable-resolution Community Earth System Model (VR-CESM) is investigated. Coupled atmosphere–land simulations are performed on two regionally refined grids over Greenland at 0.5∘ (∼55 km) and 0.25∘ (∼28 km), maintaining a quasi-uniform resolution of 1∘ (∼111 km) over the rest of the globe. On the refined grids, the SMB in the accumulation zone is significantly improved compared to airborne radar and in situ observations, with a general wetting (more snowfall) at the margins and a drying (less snowfall) in the interior GrIS. Total GrIS precipitation decreases with resolution, which is in line with best-available regional climate model results. In the ablation zone, CESM starts developing a positive SMB bias with increased resolution in some basins, notably in the east and the north. The mismatch in ablation is linked to changes in cloud cover in VR-CESM, and a reduced effectiveness of the elevation classes subgrid parametrization in CESM. Overall, our pilot study introduces VR-CESM as a new tool in the cryospheric sciences, which could be used to dynamically downscale SMB in scenario simulations and to force dynamical ice sheet models through the CESM coupling framework. |
format |
Article in Journal/Newspaper |
author |
van Kampenhout, Leonardus Rhoades, Alan M. Herrington, Adam R. Zarzycki, Colin M. Lenaerts, Jan T. M. Sacks, William J. van den Broeke, Michiel R. |
author_facet |
van Kampenhout, Leonardus Rhoades, Alan M. Herrington, Adam R. Zarzycki, Colin M. Lenaerts, Jan T. M. Sacks, William J. van den Broeke, Michiel R. |
author_sort |
van Kampenhout, Leonardus |
title |
Regional grid refinement in an Earth system model: impacts on the simulated Greenland surface mass balance |
title_short |
Regional grid refinement in an Earth system model: impacts on the simulated Greenland surface mass balance |
title_full |
Regional grid refinement in an Earth system model: impacts on the simulated Greenland surface mass balance |
title_fullStr |
Regional grid refinement in an Earth system model: impacts on the simulated Greenland surface mass balance |
title_full_unstemmed |
Regional grid refinement in an Earth system model: impacts on the simulated Greenland surface mass balance |
title_sort |
regional grid refinement in an earth system model: impacts on the simulated greenland surface mass balance |
publisher |
Copernicus Publications |
publishDate |
2019 |
url |
https://doi.org/10.5194/tc-13-1547-2019 https://noa.gwlb.de/receive/cop_mods_00002043 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00002001/tc-13-1547-2019.pdf https://tc.copernicus.org/articles/13/1547/2019/tc-13-1547-2019.pdf |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Sheet The Cryosphere |
genre_facet |
Greenland Ice Sheet 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-13-1547-2019 https://noa.gwlb.de/receive/cop_mods_00002043 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00002001/tc-13-1547-2019.pdf https://tc.copernicus.org/articles/13/1547/2019/tc-13-1547-2019.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/tc-13-1547-2019 |
container_title |
The Cryosphere |
container_volume |
13 |
container_issue |
6 |
container_start_page |
1547 |
op_container_end_page |
1564 |
_version_ |
1766016042505601024 |