Characteristics of the Antarctic surface mass balance, 1958-2002, using a regional atmospheric climate model
Temporal and spatial characteristics of the Antarctic specific surface mass balance (SSMB) are presented, including its components solid precipitation, sublimation/deposition and melt. For this purpose, we use the output of a regional atmospheric climate model (RACMO2/ANT, horizontal resolution of 5...
Main Authors: | , , , |
---|---|
Other Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
2005
|
Subjects: | |
Online Access: | https://dspace.library.uu.nl/handle/1874/42744 |
id |
ftunivutrecht:oai:dspace.library.uu.nl:1874/42744 |
---|---|
record_format |
openpolar |
spelling |
ftunivutrecht:oai:dspace.library.uu.nl:1874/42744 2023-07-23T04:15:04+02:00 Characteristics of the Antarctic surface mass balance, 1958-2002, using a regional atmospheric climate model van de Berg, W.J. van den Broeke, M.R. Reijmer, C.H. van Meijgaard, E. Marine and Atmospheric Research Universiteit Utrecht Sub Dynamics Meteorology 2005 text/plain https://dspace.library.uu.nl/handle/1874/42744 other unknown 0260-3055 https://dspace.library.uu.nl/handle/1874/42744 info:eu-repo/semantics/OpenAccess Article 2005 ftunivutrecht 2023-07-01T23:41:39Z Temporal and spatial characteristics of the Antarctic specific surface mass balance (SSMB) are presented, including its components solid precipitation, sublimation/deposition and melt. For this purpose, we use the output of a regional atmospheric climate model (RACMO2/ANT, horizontal resolution of 55 km) for the period 1958–2002. RACMO2/ANT uses European Centre for Medium- Range Weather Forecasts (ECMWF) 40 year re-analysis (ERA-40) fields as forcing at the lateral boundaries. RACMO2/ANT underestimates SSMB in the high interior of East and West Antarctica and overestimates SSMB on the steep coastal slopes. Otherwise, the modeled spatial pattern of SSMB is in good qualitative agreement with recent compilations of in situ observations. Large-scale patterns, like the precipitation shadow effect of the Antarctic Peninsula, are well reproduced, and mesoscale SSMB patterns, such as the strong precipitation gradients on Law Dome, are well represented in the model. The integrated SSMB over the grounded ice sheet is 153mmw.e. a–1 for the period 1958–2002, which agrees within 5% with the latest measurement compilations. Sublimation and melt remove 7% and Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Ice Sheet West Antarctica Utrecht University Repository Antarctic Antarctic Peninsula Law Dome ENVELOPE(112.833,112.833,-66.733,-66.733) The Antarctic West Antarctica |
institution |
Open Polar |
collection |
Utrecht University Repository |
op_collection_id |
ftunivutrecht |
language |
unknown |
description |
Temporal and spatial characteristics of the Antarctic specific surface mass balance (SSMB) are presented, including its components solid precipitation, sublimation/deposition and melt. For this purpose, we use the output of a regional atmospheric climate model (RACMO2/ANT, horizontal resolution of 55 km) for the period 1958–2002. RACMO2/ANT uses European Centre for Medium- Range Weather Forecasts (ECMWF) 40 year re-analysis (ERA-40) fields as forcing at the lateral boundaries. RACMO2/ANT underestimates SSMB in the high interior of East and West Antarctica and overestimates SSMB on the steep coastal slopes. Otherwise, the modeled spatial pattern of SSMB is in good qualitative agreement with recent compilations of in situ observations. Large-scale patterns, like the precipitation shadow effect of the Antarctic Peninsula, are well reproduced, and mesoscale SSMB patterns, such as the strong precipitation gradients on Law Dome, are well represented in the model. The integrated SSMB over the grounded ice sheet is 153mmw.e. a–1 for the period 1958–2002, which agrees within 5% with the latest measurement compilations. Sublimation and melt remove 7% and |
author2 |
Marine and Atmospheric Research Universiteit Utrecht Sub Dynamics Meteorology |
format |
Article in Journal/Newspaper |
author |
van de Berg, W.J. van den Broeke, M.R. Reijmer, C.H. van Meijgaard, E. |
spellingShingle |
van de Berg, W.J. van den Broeke, M.R. Reijmer, C.H. van Meijgaard, E. Characteristics of the Antarctic surface mass balance, 1958-2002, using a regional atmospheric climate model |
author_facet |
van de Berg, W.J. van den Broeke, M.R. Reijmer, C.H. van Meijgaard, E. |
author_sort |
van de Berg, W.J. |
title |
Characteristics of the Antarctic surface mass balance, 1958-2002, using a regional atmospheric climate model |
title_short |
Characteristics of the Antarctic surface mass balance, 1958-2002, using a regional atmospheric climate model |
title_full |
Characteristics of the Antarctic surface mass balance, 1958-2002, using a regional atmospheric climate model |
title_fullStr |
Characteristics of the Antarctic surface mass balance, 1958-2002, using a regional atmospheric climate model |
title_full_unstemmed |
Characteristics of the Antarctic surface mass balance, 1958-2002, using a regional atmospheric climate model |
title_sort |
characteristics of the antarctic surface mass balance, 1958-2002, using a regional atmospheric climate model |
publishDate |
2005 |
url |
https://dspace.library.uu.nl/handle/1874/42744 |
long_lat |
ENVELOPE(112.833,112.833,-66.733,-66.733) |
geographic |
Antarctic Antarctic Peninsula Law Dome The Antarctic West Antarctica |
geographic_facet |
Antarctic Antarctic Peninsula Law Dome The Antarctic West Antarctica |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Ice Sheet West Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Ice Sheet West Antarctica |
op_relation |
0260-3055 https://dspace.library.uu.nl/handle/1874/42744 |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1772189070232911872 |