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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European Geosciences Union
2012
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Online Access: | http://nora.nerc.ac.uk/id/eprint/20862/ https://nora.nerc.ac.uk/id/eprint/20862/1/057_Kuipers_theCrosphere.pdf https://tc.copernicus.org/articles/6/353/2012/ https://doi.org/10.5194/tc-6-353-2012 |
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ftnerc:oai:nora.nerc.ac.uk:20862 2023-05-15T13:45:12+02:00 Near-surface climate and surface energy budget of Larsen C ice shelf, Antarctic Peninsula Kuipers Munneke, P. van den Broeke, M.R. King, J.C. Gray, T. Reijmer, C.H. 2012-03-27 text http://nora.nerc.ac.uk/id/eprint/20862/ https://nora.nerc.ac.uk/id/eprint/20862/1/057_Kuipers_theCrosphere.pdf https://tc.copernicus.org/articles/6/353/2012/ https://doi.org/10.5194/tc-6-353-2012 en eng European Geosciences Union https://nora.nerc.ac.uk/id/eprint/20862/1/057_Kuipers_theCrosphere.pdf Kuipers Munneke, P.; van den Broeke, M.R.; King, J.C. orcid:0000-0003-3315-7568 Gray, T.; Reijmer, C.H. 2012 Near-surface climate and surface energy budget of Larsen C ice shelf, Antarctic Peninsula. The Cryosphere, 6 (2). 353-363. https://doi.org/10.5194/tc-6-353-2012 <https://doi.org/10.5194/tc-6-353-2012> cc_by CC-BY Publication - Article PeerReviewed 2012 ftnerc https://doi.org/10.5194/tc-6-353-2012 2023-02-04T19:33:08Z 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 f¨ohn 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 Natural Environment Research Council: NERC Open Research Archive Antarctic Antarctic Peninsula The Antarctic The Cryosphere 6 2 353 363 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
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 f¨ohn 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 |
Kuipers Munneke, P. van den Broeke, M.R. King, J.C. Gray, T. Reijmer, C.H. |
spellingShingle |
Kuipers Munneke, P. van den Broeke, M.R. King, J.C. Gray, T. Reijmer, C.H. Near-surface climate and surface energy budget of Larsen C ice shelf, Antarctic Peninsula |
author_facet |
Kuipers Munneke, P. van den Broeke, M.R. King, J.C. Gray, T. Reijmer, C.H. |
author_sort |
Kuipers Munneke, P. |
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 |
European Geosciences Union |
publishDate |
2012 |
url |
http://nora.nerc.ac.uk/id/eprint/20862/ https://nora.nerc.ac.uk/id/eprint/20862/1/057_Kuipers_theCrosphere.pdf https://tc.copernicus.org/articles/6/353/2012/ https://doi.org/10.5194/tc-6-353-2012 |
geographic |
Antarctic Antarctic Peninsula The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Ice Shelf The Cryosphere |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Ice Shelf The Cryosphere |
op_relation |
https://nora.nerc.ac.uk/id/eprint/20862/1/057_Kuipers_theCrosphere.pdf Kuipers Munneke, P.; van den Broeke, M.R.; King, J.C. orcid:0000-0003-3315-7568 Gray, T.; Reijmer, C.H. 2012 Near-surface climate and surface energy budget of Larsen C ice shelf, Antarctic Peninsula. The Cryosphere, 6 (2). 353-363. https://doi.org/10.5194/tc-6-353-2012 <https://doi.org/10.5194/tc-6-353-2012> |
op_rights |
cc_by |
op_rightsnorm |
CC-BY |
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 |
_version_ |
1766217256664039424 |