High variability of climate and surface mass balance induced by Antarctic ice rises
Ice rises play key roles in buttressing the neighbouring ice shelves and potentially provide palaeoclimate proxies from ice cores drilled near their divides. Little is known, however, about their influence on local climate and surface mass balance (SMB). Here we combine 12 years (2001–12) of regiona...
Main Authors: | , , , , , , , , , , , |
---|---|
Other Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2014
|
Subjects: | |
Online Access: | https://dspace.library.uu.nl/handle/1874/308393 |
id |
ftunivutrecht:oai:dspace.library.uu.nl:1874/308393 |
---|---|
record_format |
openpolar |
spelling |
ftunivutrecht:oai:dspace.library.uu.nl:1874/308393 2023-07-23T04:14:59+02:00 High variability of climate and surface mass balance induced by Antarctic ice rises Lenaerts, Jan Brown, Joel van den Broeke, Michiel Matsuoka, Kenichi Drews, Reinhard Callens, Denis Philippe, Morgane Gorodetskaya, I.V. van Meijgaard, E. Tijm - Reijmer, Catharina Pattyn, F. van Lipzig, N.P.M. Sub Dynamics Meteorology Marine and Atmospheric Research 2014 image/pdf https://dspace.library.uu.nl/handle/1874/308393 en eng 0022-1430 https://dspace.library.uu.nl/handle/1874/308393 info:eu-repo/semantics/OpenAccess accumulation Antarctic glaciology ice rise surface mass budget wind-blown snow Article 2014 ftunivutrecht 2023-07-02T01:14:20Z Ice rises play key roles in buttressing the neighbouring ice shelves and potentially provide palaeoclimate proxies from ice cores drilled near their divides. Little is known, however, about their influence on local climate and surface mass balance (SMB). Here we combine 12 years (2001–12) of regional atmospheric climate model (RACMO2) output at high horizontal resolution (5.5 km) with recent observations from weather stations, ground penetrating radar and firn cores in coastal Dronning Maud Land, East Antarctica, to describe climate and SMB variations around ice rises. We demonstrate strong spatial variability of climate and SMB in the vicinity of ice rises, in contrast to flat ice shelves, where they are relatively homogeneous. Despite their higher elevation, ice rises are characterized by higher winter temperatures compared with the flat ice shelf. Ice rises strongly influence SMB patterns, mainly through orographic uplift of moist air on the upwind slopes. Besides precipitation, drifting snow contributes significantly to the ice-rise SMB. The findings reported here may aid in selecting a representative location for ice coring on ice rises, and allow better constraint of local ice-rise as well as regional ice-shelf mass balance. Article in Journal/Newspaper Antarc* Antarctic Antarctica Dronning Maud Land East Antarctica Ice Shelf Ice Shelves Utrecht University Repository Antarctic Dronning Maud Land East Antarctica |
institution |
Open Polar |
collection |
Utrecht University Repository |
op_collection_id |
ftunivutrecht |
language |
English |
topic |
accumulation Antarctic glaciology ice rise surface mass budget wind-blown snow |
spellingShingle |
accumulation Antarctic glaciology ice rise surface mass budget wind-blown snow Lenaerts, Jan Brown, Joel van den Broeke, Michiel Matsuoka, Kenichi Drews, Reinhard Callens, Denis Philippe, Morgane Gorodetskaya, I.V. van Meijgaard, E. Tijm - Reijmer, Catharina Pattyn, F. van Lipzig, N.P.M. High variability of climate and surface mass balance induced by Antarctic ice rises |
topic_facet |
accumulation Antarctic glaciology ice rise surface mass budget wind-blown snow |
description |
Ice rises play key roles in buttressing the neighbouring ice shelves and potentially provide palaeoclimate proxies from ice cores drilled near their divides. Little is known, however, about their influence on local climate and surface mass balance (SMB). Here we combine 12 years (2001–12) of regional atmospheric climate model (RACMO2) output at high horizontal resolution (5.5 km) with recent observations from weather stations, ground penetrating radar and firn cores in coastal Dronning Maud Land, East Antarctica, to describe climate and SMB variations around ice rises. We demonstrate strong spatial variability of climate and SMB in the vicinity of ice rises, in contrast to flat ice shelves, where they are relatively homogeneous. Despite their higher elevation, ice rises are characterized by higher winter temperatures compared with the flat ice shelf. Ice rises strongly influence SMB patterns, mainly through orographic uplift of moist air on the upwind slopes. Besides precipitation, drifting snow contributes significantly to the ice-rise SMB. The findings reported here may aid in selecting a representative location for ice coring on ice rises, and allow better constraint of local ice-rise as well as regional ice-shelf mass balance. |
author2 |
Sub Dynamics Meteorology Marine and Atmospheric Research |
format |
Article in Journal/Newspaper |
author |
Lenaerts, Jan Brown, Joel van den Broeke, Michiel Matsuoka, Kenichi Drews, Reinhard Callens, Denis Philippe, Morgane Gorodetskaya, I.V. van Meijgaard, E. Tijm - Reijmer, Catharina Pattyn, F. van Lipzig, N.P.M. |
author_facet |
Lenaerts, Jan Brown, Joel van den Broeke, Michiel Matsuoka, Kenichi Drews, Reinhard Callens, Denis Philippe, Morgane Gorodetskaya, I.V. van Meijgaard, E. Tijm - Reijmer, Catharina Pattyn, F. van Lipzig, N.P.M. |
author_sort |
Lenaerts, Jan |
title |
High variability of climate and surface mass balance induced by Antarctic ice rises |
title_short |
High variability of climate and surface mass balance induced by Antarctic ice rises |
title_full |
High variability of climate and surface mass balance induced by Antarctic ice rises |
title_fullStr |
High variability of climate and surface mass balance induced by Antarctic ice rises |
title_full_unstemmed |
High variability of climate and surface mass balance induced by Antarctic ice rises |
title_sort |
high variability of climate and surface mass balance induced by antarctic ice rises |
publishDate |
2014 |
url |
https://dspace.library.uu.nl/handle/1874/308393 |
geographic |
Antarctic Dronning Maud Land East Antarctica |
geographic_facet |
Antarctic Dronning Maud Land East Antarctica |
genre |
Antarc* Antarctic Antarctica Dronning Maud Land East Antarctica Ice Shelf Ice Shelves |
genre_facet |
Antarc* Antarctic Antarctica Dronning Maud Land East Antarctica Ice Shelf Ice Shelves |
op_relation |
0022-1430 https://dspace.library.uu.nl/handle/1874/308393 |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1772188914603261952 |