Near-surface climate and surface energy budget of Larsen C ice shelf, Antarctic Peninsula
Data collected by two automatic weather stations (AWS) on the Larsen C ice shelf, Antarctica, between 22 January 2009 and 1 February 2011 are analyzed and used as input for a model that computes the surface energy budget (SEB), which includes melt energy. The two AWSs are separated by about 70 km in...
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ftdoajarticles:oai:doaj.org/article:bd19f22878934494a48850c411e3db2f 2023-05-15T14:04:16+02:00 Near-surface climate and surface energy budget of Larsen C ice shelf, Antarctic Peninsula P. Kuipers Munneke M. R. van den Broeke J. C. King T. Gray C. H. Reijmer 2012-03-01T00:00:00Z https://doi.org/10.5194/tc-6-353-2012 https://doaj.org/article/bd19f22878934494a48850c411e3db2f EN eng Copernicus Publications http://www.the-cryosphere.net/6/353/2012/tc-6-353-2012.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-6-353-2012 1994-0416 1994-0424 https://doaj.org/article/bd19f22878934494a48850c411e3db2f The Cryosphere, Vol 6, Iss 2, Pp 353-363 (2012) Environmental sciences GE1-350 Geology QE1-996.5 article 2012 ftdoajarticles https://doi.org/10.5194/tc-6-353-2012 2022-12-30T20:52:40Z Data collected by two automatic weather stations (AWS) on the Larsen C ice shelf, Antarctica, between 22 January 2009 and 1 February 2011 are analyzed and used as input for a model that computes the surface energy budget (SEB), which includes melt energy. The two AWSs are separated by about 70 km in the north–south direction, and both the near-surface meteorology and the SEB show similarities, although small differences in all components (most notably the melt flux) can be seen. The impact of subsurface absorption of shortwave radiation on melt and snow temperature is significant, and discussed. In winter, longwave cooling of the surface is entirely compensated by a downward turbulent transport of sensible heat. In summer, the positive net radiative flux is compensated by melt, and quite frequently by upward turbulent diffusion of heat and moisture, leading to sublimation and weak convection over the ice shelf. The month of November 2010 is highlighted, when strong westerly flow over the Antarctic Peninsula led to a dry and warm föhn wind over the ice shelf, resulting in warm and sunny conditions. Under these conditions the increase in shortwave and sensible heat fluxes is larger than the decrease of net longwave and latent heat fluxes, providing energy for significant melt. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Ice Shelf The Cryosphere Directory of Open Access Journals: DOAJ Articles Antarctic The Antarctic Antarctic Peninsula The Cryosphere 6 2 353 363 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental sciences GE1-350 Geology QE1-996.5 |
spellingShingle |
Environmental sciences GE1-350 Geology QE1-996.5 P. Kuipers Munneke M. R. van den Broeke J. C. King T. Gray C. H. Reijmer Near-surface climate and surface energy budget of Larsen C ice shelf, Antarctic Peninsula |
topic_facet |
Environmental sciences GE1-350 Geology QE1-996.5 |
description |
Data collected by two automatic weather stations (AWS) on the Larsen C ice shelf, Antarctica, between 22 January 2009 and 1 February 2011 are analyzed and used as input for a model that computes the surface energy budget (SEB), which includes melt energy. The two AWSs are separated by about 70 km in the north–south direction, and both the near-surface meteorology and the SEB show similarities, although small differences in all components (most notably the melt flux) can be seen. The impact of subsurface absorption of shortwave radiation on melt and snow temperature is significant, and discussed. In winter, longwave cooling of the surface is entirely compensated by a downward turbulent transport of sensible heat. In summer, the positive net radiative flux is compensated by melt, and quite frequently by upward turbulent diffusion of heat and moisture, leading to sublimation and weak convection over the ice shelf. The month of November 2010 is highlighted, when strong westerly flow over the Antarctic Peninsula led to a dry and warm föhn wind over the ice shelf, resulting in warm and sunny conditions. Under these conditions the increase in shortwave and sensible heat fluxes is larger than the decrease of net longwave and latent heat fluxes, providing energy for significant melt. |
format |
Article in Journal/Newspaper |
author |
P. Kuipers Munneke M. R. van den Broeke J. C. King T. Gray C. H. Reijmer |
author_facet |
P. Kuipers Munneke M. R. van den Broeke J. C. King T. Gray C. H. Reijmer |
author_sort |
P. Kuipers Munneke |
title |
Near-surface climate and surface energy budget of Larsen C ice shelf, Antarctic Peninsula |
title_short |
Near-surface climate and surface energy budget of Larsen C ice shelf, Antarctic Peninsula |
title_full |
Near-surface climate and surface energy budget of Larsen C ice shelf, Antarctic Peninsula |
title_fullStr |
Near-surface climate and surface energy budget of Larsen C ice shelf, Antarctic Peninsula |
title_full_unstemmed |
Near-surface climate and surface energy budget of Larsen C ice shelf, Antarctic Peninsula |
title_sort |
near-surface climate and surface energy budget of larsen c ice shelf, antarctic peninsula |
publisher |
Copernicus Publications |
publishDate |
2012 |
url |
https://doi.org/10.5194/tc-6-353-2012 https://doaj.org/article/bd19f22878934494a48850c411e3db2f |
geographic |
Antarctic The Antarctic Antarctic Peninsula |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Ice Shelf The Cryosphere |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Ice Shelf The Cryosphere |
op_source |
The Cryosphere, Vol 6, Iss 2, Pp 353-363 (2012) |
op_relation |
http://www.the-cryosphere.net/6/353/2012/tc-6-353-2012.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-6-353-2012 1994-0416 1994-0424 https://doaj.org/article/bd19f22878934494a48850c411e3db2f |
op_doi |
https://doi.org/10.5194/tc-6-353-2012 |
container_title |
The Cryosphere |
container_volume |
6 |
container_issue |
2 |
container_start_page |
353 |
op_container_end_page |
363 |
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1766275295503974400 |