Recent surface mass balance from Syowa Station to Dome F, East Antarctica: comparison of field observations, atmospheric reanalyses, and a regional atmospheric climate model
Stake measurements at 2 km intervals are used to determine the spatial and temporal surface mass balance (SMB) in recent decades along the Japanese Antarctic Research Expedition traverse route from Syowa Station to Dome F. To determine SMB variability at regional scales, this traverse route is divid...
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ftunivutrecht:oai:dspace.library.uu.nl:1874/428279 2023-07-23T04:14:33+02:00 Recent surface mass balance from Syowa Station to Dome F, East Antarctica: comparison of field observations, atmospheric reanalyses, and a regional atmospheric climate model Wang, Yetang Hou, Shugui Sun, Weijun Lenaerts, Jan T M Van Den Broeke, Michiel R. Van Wessem, J. M. Sub Dynamics Meteorology Marine and Atmospheric Research 2015-11-01 application/pdf https://dspace.library.uu.nl/handle/1874/428279 en eng 0930-7575 https://dspace.library.uu.nl/handle/1874/428279 info:eu-repo/semantics/OpenAccess Antarctica Model assessment Spatial variability Surface mass balance Temporal variability Taverne Atmospheric Science Article 2015 ftunivutrecht 2023-07-02T03:56:21Z Stake measurements at 2 km intervals are used to determine the spatial and temporal surface mass balance (SMB) in recent decades along the Japanese Antarctic Research Expedition traverse route from Syowa Station to Dome F. To determine SMB variability at regional scales, this traverse route is divided into four regions, i.e., coastal, lower katabatic, upper katabatic and inland plateau. We also perform a regional evaluation of large scale SMB simulated by the regional atmospheric climate model versions 2.1 and 2.3 (RACMO2.1 and RACMO2.3), and the four more recent global reanalyses. Large-scale spatial variability in the multi-year averaged SMB reveals robust relationships with continentality and surface elevation. In the katabatic regions, SMB variability is also highly associated with surface slope, which in turn is affected by bedrock topography. Stake observation records show large inter-annual variability in SMB, but did not indicate any significant trends over both the last 40 years for the coastal and lower katabatic regions, and the last 20 years record for the upper katabatic and inland plateau regions. The four reanalyses and the regional climate model reproduce the macro-scale spatial pattern well for the multi-year averaged SMB, but fail to capture the mesoscale SMB increase at the distance interval ~300 to ~400 km from Syowa station. Thanks to the updated scheme in the cloud microphysics, RACMO2.3 shows the best spatial agreement with stake measurements over the inland plateau region. ERA-interim, JRA-55 and MERRA exhibit high agreement with the inter-annual variability of observed SMB in the coastal, upper katabatic and inland plateau regions, and moderate agreement in the lower katabatic region, while NCEP2 and RACMO2.1 inter-annual variability shows no significant correlation with the observations for the inland plateau region. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Utrecht University Repository Antarctic Dome F ENVELOPE(39.700,39.700,-77.317,-77.317) East Antarctica Merra ENVELOPE(12.615,12.615,65.816,65.816) Syowa Station |
institution |
Open Polar |
collection |
Utrecht University Repository |
op_collection_id |
ftunivutrecht |
language |
English |
topic |
Antarctica Model assessment Spatial variability Surface mass balance Temporal variability Taverne Atmospheric Science |
spellingShingle |
Antarctica Model assessment Spatial variability Surface mass balance Temporal variability Taverne Atmospheric Science Wang, Yetang Hou, Shugui Sun, Weijun Lenaerts, Jan T M Van Den Broeke, Michiel R. Van Wessem, J. M. Recent surface mass balance from Syowa Station to Dome F, East Antarctica: comparison of field observations, atmospheric reanalyses, and a regional atmospheric climate model |
topic_facet |
Antarctica Model assessment Spatial variability Surface mass balance Temporal variability Taverne Atmospheric Science |
description |
Stake measurements at 2 km intervals are used to determine the spatial and temporal surface mass balance (SMB) in recent decades along the Japanese Antarctic Research Expedition traverse route from Syowa Station to Dome F. To determine SMB variability at regional scales, this traverse route is divided into four regions, i.e., coastal, lower katabatic, upper katabatic and inland plateau. We also perform a regional evaluation of large scale SMB simulated by the regional atmospheric climate model versions 2.1 and 2.3 (RACMO2.1 and RACMO2.3), and the four more recent global reanalyses. Large-scale spatial variability in the multi-year averaged SMB reveals robust relationships with continentality and surface elevation. In the katabatic regions, SMB variability is also highly associated with surface slope, which in turn is affected by bedrock topography. Stake observation records show large inter-annual variability in SMB, but did not indicate any significant trends over both the last 40 years for the coastal and lower katabatic regions, and the last 20 years record for the upper katabatic and inland plateau regions. The four reanalyses and the regional climate model reproduce the macro-scale spatial pattern well for the multi-year averaged SMB, but fail to capture the mesoscale SMB increase at the distance interval ~300 to ~400 km from Syowa station. Thanks to the updated scheme in the cloud microphysics, RACMO2.3 shows the best spatial agreement with stake measurements over the inland plateau region. ERA-interim, JRA-55 and MERRA exhibit high agreement with the inter-annual variability of observed SMB in the coastal, upper katabatic and inland plateau regions, and moderate agreement in the lower katabatic region, while NCEP2 and RACMO2.1 inter-annual variability shows no significant correlation with the observations for the inland plateau region. |
author2 |
Sub Dynamics Meteorology Marine and Atmospheric Research |
format |
Article in Journal/Newspaper |
author |
Wang, Yetang Hou, Shugui Sun, Weijun Lenaerts, Jan T M Van Den Broeke, Michiel R. Van Wessem, J. M. |
author_facet |
Wang, Yetang Hou, Shugui Sun, Weijun Lenaerts, Jan T M Van Den Broeke, Michiel R. Van Wessem, J. M. |
author_sort |
Wang, Yetang |
title |
Recent surface mass balance from Syowa Station to Dome F, East Antarctica: comparison of field observations, atmospheric reanalyses, and a regional atmospheric climate model |
title_short |
Recent surface mass balance from Syowa Station to Dome F, East Antarctica: comparison of field observations, atmospheric reanalyses, and a regional atmospheric climate model |
title_full |
Recent surface mass balance from Syowa Station to Dome F, East Antarctica: comparison of field observations, atmospheric reanalyses, and a regional atmospheric climate model |
title_fullStr |
Recent surface mass balance from Syowa Station to Dome F, East Antarctica: comparison of field observations, atmospheric reanalyses, and a regional atmospheric climate model |
title_full_unstemmed |
Recent surface mass balance from Syowa Station to Dome F, East Antarctica: comparison of field observations, atmospheric reanalyses, and a regional atmospheric climate model |
title_sort |
recent surface mass balance from syowa station to dome f, east antarctica: comparison of field observations, atmospheric reanalyses, and a regional atmospheric climate model |
publishDate |
2015 |
url |
https://dspace.library.uu.nl/handle/1874/428279 |
long_lat |
ENVELOPE(39.700,39.700,-77.317,-77.317) ENVELOPE(12.615,12.615,65.816,65.816) |
geographic |
Antarctic Dome F East Antarctica Merra Syowa Station |
geographic_facet |
Antarctic Dome F East Antarctica Merra Syowa Station |
genre |
Antarc* Antarctic Antarctica East Antarctica |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica |
op_relation |
0930-7575 https://dspace.library.uu.nl/handle/1874/428279 |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1772185611902386176 |