A benchmark dataset of in situ Antarctic surface melt rates and energy balance
Abstract Surface melt on the coastal Antarctic ice sheet (AIS) determines the viability of its ice shelves and the stability of the grounded ice sheet, but very few in situ melt rate estimates exist to date. Here we present a benchmark dataset of in situ surface melt rates and energy balance from ni...
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ftunivutrecht:oai:dspace.library.uu.nl:1874/395205 2023-11-12T04:06:39+01:00 A benchmark dataset of in situ Antarctic surface melt rates and energy balance Jakobs, Constantijn L. Reijmer, Carleen H. Smeets, C. J.P.Paul Trusel, Luke D. Van De Berg, Willem Jan Van Den Broeke, Michiel R. Van Wessem, J. Melchior Sub Dynamics Meteorology Marine and Atmospheric Research 2020-04-01 image/pdf https://dspace.library.uu.nl/handle/1874/395205 en eng 0022-1430 https://dspace.library.uu.nl/handle/1874/395205 info:eu-repo/semantics/OpenAccess energy balance ice/atmosphere interactions KeywordsAntarctic glaciology melt-surface snow/ice surface processes Earth-Surface Processes Article 2020 ftunivutrecht 2023-11-01T23:23:11Z Abstract Surface melt on the coastal Antarctic ice sheet (AIS) determines the viability of its ice shelves and the stability of the grounded ice sheet, but very few in situ melt rate estimates exist to date. Here we present a benchmark dataset of in situ surface melt rates and energy balance from nine sites in the eastern Antarctic Peninsula (AP) and coastal Dronning Maud Land (DML), East Antarctica, seven of which are located on AIS ice shelves. Meteorological time series from eight automatic and one staffed weather station (Neumayer), ranging in length from 15 months to almost 24 years, serve as input for an energy-balance model to obtain consistent surface melt rates and energy-balance results. We find that surface melt rates exhibit large temporal, spatial and process variability. Intermittent summer melt in coastal DML is primarily driven by absorption of shortwave radiation, while non-summer melt events in the eastern AP occur during föhn events that force a large downward directed turbulent flux of sensible heat. We use the in situ surface melt rate dataset to evaluate melt rates from the regional atmospheric climate model RACMO2 and validate a melt product from the QuikSCAT satellite. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica DML Dronning Maud Land East Antarctica Ice Sheet Ice Shelves Utrecht University Repository Antarctic Antarctic Peninsula Dronning Maud Land East Antarctica Neumayer |
institution |
Open Polar |
collection |
Utrecht University Repository |
op_collection_id |
ftunivutrecht |
language |
English |
topic |
energy balance ice/atmosphere interactions KeywordsAntarctic glaciology melt-surface snow/ice surface processes Earth-Surface Processes |
spellingShingle |
energy balance ice/atmosphere interactions KeywordsAntarctic glaciology melt-surface snow/ice surface processes Earth-Surface Processes Jakobs, Constantijn L. Reijmer, Carleen H. Smeets, C. J.P.Paul Trusel, Luke D. Van De Berg, Willem Jan Van Den Broeke, Michiel R. Van Wessem, J. Melchior A benchmark dataset of in situ Antarctic surface melt rates and energy balance |
topic_facet |
energy balance ice/atmosphere interactions KeywordsAntarctic glaciology melt-surface snow/ice surface processes Earth-Surface Processes |
description |
Abstract Surface melt on the coastal Antarctic ice sheet (AIS) determines the viability of its ice shelves and the stability of the grounded ice sheet, but very few in situ melt rate estimates exist to date. Here we present a benchmark dataset of in situ surface melt rates and energy balance from nine sites in the eastern Antarctic Peninsula (AP) and coastal Dronning Maud Land (DML), East Antarctica, seven of which are located on AIS ice shelves. Meteorological time series from eight automatic and one staffed weather station (Neumayer), ranging in length from 15 months to almost 24 years, serve as input for an energy-balance model to obtain consistent surface melt rates and energy-balance results. We find that surface melt rates exhibit large temporal, spatial and process variability. Intermittent summer melt in coastal DML is primarily driven by absorption of shortwave radiation, while non-summer melt events in the eastern AP occur during föhn events that force a large downward directed turbulent flux of sensible heat. We use the in situ surface melt rate dataset to evaluate melt rates from the regional atmospheric climate model RACMO2 and validate a melt product from the QuikSCAT satellite. |
author2 |
Sub Dynamics Meteorology Marine and Atmospheric Research |
format |
Article in Journal/Newspaper |
author |
Jakobs, Constantijn L. Reijmer, Carleen H. Smeets, C. J.P.Paul Trusel, Luke D. Van De Berg, Willem Jan Van Den Broeke, Michiel R. Van Wessem, J. Melchior |
author_facet |
Jakobs, Constantijn L. Reijmer, Carleen H. Smeets, C. J.P.Paul Trusel, Luke D. Van De Berg, Willem Jan Van Den Broeke, Michiel R. Van Wessem, J. Melchior |
author_sort |
Jakobs, Constantijn L. |
title |
A benchmark dataset of in situ Antarctic surface melt rates and energy balance |
title_short |
A benchmark dataset of in situ Antarctic surface melt rates and energy balance |
title_full |
A benchmark dataset of in situ Antarctic surface melt rates and energy balance |
title_fullStr |
A benchmark dataset of in situ Antarctic surface melt rates and energy balance |
title_full_unstemmed |
A benchmark dataset of in situ Antarctic surface melt rates and energy balance |
title_sort |
benchmark dataset of in situ antarctic surface melt rates and energy balance |
publishDate |
2020 |
url |
https://dspace.library.uu.nl/handle/1874/395205 |
geographic |
Antarctic Antarctic Peninsula Dronning Maud Land East Antarctica Neumayer |
geographic_facet |
Antarctic Antarctic Peninsula Dronning Maud Land East Antarctica Neumayer |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica DML Dronning Maud Land East Antarctica Ice Sheet Ice Shelves |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica DML Dronning Maud Land East Antarctica Ice Sheet Ice Shelves |
op_relation |
0022-1430 https://dspace.library.uu.nl/handle/1874/395205 |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1782327700984168448 |