A 40-year accumulation dataset for Adelie Land, Antarctica and its application for model validation
peer reviewed The GLACIOCLIM-SAMBA (GS) Antarctic accumulation monitoring network, which extends from the coast of Adelie Land to the Antarctic plateau, has been surveyed annually since 2004. The network includes a 156-km stake-line from the coast inland, along which accumulation shows high spatial...
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ftorbi:oai:orbi.ulg.ac.be:2268/143900 2024-10-13T14:00:53+00:00 A 40-year accumulation dataset for Adelie Land, Antarctica and its application for model validation Agosta, Cécile Favier, Vincent Genthon, Christophe Gallée, Hubert Krinner, Gerhard Lenaerts, Jan T. M. van den Broeke, Michiel R. 2012 https://orbi.uliege.be/handle/2268/143900 https://doi.org/10.1007/s00382-011-1103-4 en eng Springer Berlin info:eu-repo/grantAgreement/EC/FP7/226375 urn:issn:0930-7575 urn:issn:1432-0894 https://orbi.uliege.be/handle/2268/143900 info:hdl:2268/143900 restricted access http://purl.org/coar/access_right/c_16ec info:eu-repo/semantics/restrictedAccess Climate Dynamics, 38 (1-2), 75-8686 (2012) Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique journal article http://purl.org/coar/resource_type/c_6501 info:eu-repo/semantics/article peer reviewed 2012 ftorbi https://doi.org/10.1007/s00382-011-1103-4 2024-09-27T07:01:55Z peer reviewed The GLACIOCLIM-SAMBA (GS) Antarctic accumulation monitoring network, which extends from the coast of Adelie Land to the Antarctic plateau, has been surveyed annually since 2004. The network includes a 156-km stake-line from the coast inland, along which accumulation shows high spatial and interannual variability with a mean value of 362 mm water equivalent a -1. In this paper, this accumulation is compared with older accumulation reports from between 1971 and 1991. The mean and annual standard deviation and the km-scale spatial pattern of accumulation were seen to be very similar in the older and more recent data. The data did not reveal any significant accumulation trend over the last 40 years. The ECMWF analysis-based forecasts (ERA-40 and ERA-Interim), a stretched-grid global general circulation model (LMDZ4) and three regional circulation models (PMM5, MAR and RACMO2), all with high resolution over Antarctica (27-125 km), were tested against the GS reports. They qualitatively reproduced the meso-scale spatial pattern of the annual-mean accumulation except MAR. MAR significantly underestimated mean accumulation, while LMDZ4 and RACMO2 overestimated it. ERA-40 and the regional models that use ERA-40 as lateral boundary condition qualitatively reproduced the chronology of interannual variability but underestimated the magnitude of interannual variations. Two widely used climatologies for Antarctic accumulation agreed well with the mean GS data. The model-based climatology was also able to reproduce the observed spatial pattern. These data thus provide new stringent constraints on models and other large-scale evaluations of the Antarctic accumulation. Article in Journal/Newspaper Adelie Land Antarc* Antarctic Antarctica University of Liège: ORBi (Open Repository and Bibliography) Antarctic The Antarctic Climate Dynamics 38 1-2 75 86 |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
spellingShingle |
Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique Agosta, Cécile Favier, Vincent Genthon, Christophe Gallée, Hubert Krinner, Gerhard Lenaerts, Jan T. M. van den Broeke, Michiel R. A 40-year accumulation dataset for Adelie Land, Antarctica and its application for model validation |
topic_facet |
Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
description |
peer reviewed The GLACIOCLIM-SAMBA (GS) Antarctic accumulation monitoring network, which extends from the coast of Adelie Land to the Antarctic plateau, has been surveyed annually since 2004. The network includes a 156-km stake-line from the coast inland, along which accumulation shows high spatial and interannual variability with a mean value of 362 mm water equivalent a -1. In this paper, this accumulation is compared with older accumulation reports from between 1971 and 1991. The mean and annual standard deviation and the km-scale spatial pattern of accumulation were seen to be very similar in the older and more recent data. The data did not reveal any significant accumulation trend over the last 40 years. The ECMWF analysis-based forecasts (ERA-40 and ERA-Interim), a stretched-grid global general circulation model (LMDZ4) and three regional circulation models (PMM5, MAR and RACMO2), all with high resolution over Antarctica (27-125 km), were tested against the GS reports. They qualitatively reproduced the meso-scale spatial pattern of the annual-mean accumulation except MAR. MAR significantly underestimated mean accumulation, while LMDZ4 and RACMO2 overestimated it. ERA-40 and the regional models that use ERA-40 as lateral boundary condition qualitatively reproduced the chronology of interannual variability but underestimated the magnitude of interannual variations. Two widely used climatologies for Antarctic accumulation agreed well with the mean GS data. The model-based climatology was also able to reproduce the observed spatial pattern. These data thus provide new stringent constraints on models and other large-scale evaluations of the Antarctic accumulation. |
format |
Article in Journal/Newspaper |
author |
Agosta, Cécile Favier, Vincent Genthon, Christophe Gallée, Hubert Krinner, Gerhard Lenaerts, Jan T. M. van den Broeke, Michiel R. |
author_facet |
Agosta, Cécile Favier, Vincent Genthon, Christophe Gallée, Hubert Krinner, Gerhard Lenaerts, Jan T. M. van den Broeke, Michiel R. |
author_sort |
Agosta, Cécile |
title |
A 40-year accumulation dataset for Adelie Land, Antarctica and its application for model validation |
title_short |
A 40-year accumulation dataset for Adelie Land, Antarctica and its application for model validation |
title_full |
A 40-year accumulation dataset for Adelie Land, Antarctica and its application for model validation |
title_fullStr |
A 40-year accumulation dataset for Adelie Land, Antarctica and its application for model validation |
title_full_unstemmed |
A 40-year accumulation dataset for Adelie Land, Antarctica and its application for model validation |
title_sort |
40-year accumulation dataset for adelie land, antarctica and its application for model validation |
publisher |
Springer Berlin |
publishDate |
2012 |
url |
https://orbi.uliege.be/handle/2268/143900 https://doi.org/10.1007/s00382-011-1103-4 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Adelie Land Antarc* Antarctic Antarctica |
genre_facet |
Adelie Land Antarc* Antarctic Antarctica |
op_source |
Climate Dynamics, 38 (1-2), 75-8686 (2012) |
op_relation |
info:eu-repo/grantAgreement/EC/FP7/226375 urn:issn:0930-7575 urn:issn:1432-0894 https://orbi.uliege.be/handle/2268/143900 info:hdl:2268/143900 |
op_rights |
restricted access http://purl.org/coar/access_right/c_16ec info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/s00382-011-1103-4 |
container_title |
Climate Dynamics |
container_volume |
38 |
container_issue |
1-2 |
container_start_page |
75 |
op_container_end_page |
86 |
_version_ |
1812813070110556160 |