Summer Heat and Ice Balances on Hodges Glacier, South Georgia, Falkland Islands Dependencies
Abstract The heat and ice balances of a temperate sub-Antarctic cirque glacier were measured through the 1973–74 melt season at an altitude midway between the climatic firn limit and the snout. The melt calculated from mean daily measurements at a single level of net radiation, wind-speed, temperatu...
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Language: | English |
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Cambridge University Press (CUP)
1982
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Online Access: | http://dx.doi.org/10.1017/s0022143000011606 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000011606 |
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crcambridgeupr:10.1017/s0022143000011606 2024-03-03T08:37:11+00:00 Summer Heat and Ice Balances on Hodges Glacier, South Georgia, Falkland Islands Dependencies Hogg, I. G. G. Paren, J. G. Timmis, R. J. 1982 http://dx.doi.org/10.1017/s0022143000011606 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000011606 en eng Cambridge University Press (CUP) Journal of Glaciology volume 28, issue 99, page 221-238 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 1982 crcambridgeupr https://doi.org/10.1017/s0022143000011606 2024-02-08T08:34:04Z Abstract The heat and ice balances of a temperate sub-Antarctic cirque glacier were measured through the 1973–74 melt season at an altitude midway between the climatic firn limit and the snout. The melt calculated from mean daily measurements at a single level of net radiation, wind-speed, temperature, and humidity agreed with that observed at nearby budget stakes. In the central ablation zone, radiation provided (54 ± 6)% and sensible fluxes (46 ± 6)% of the heat income through the summer, which was exceptionally warm and sunny. Latent-heat fluxes made no significant contribution to the heat balance. The calculation by Smith (1960) that the radiative, sensible, and latent heat fluxes contribute about equally to ablation in this zone has not been substantiated by measurement. The measured partition of the glacier’s heat balance suggested that maritime influences on its regime are mitigated by its position in the lee of a major mountain range. Article in Journal/Newspaper Antarc* Antarctic Hodges Glacier Journal of Glaciology Cambridge University Press Antarctic Hodges Glacier ENVELOPE(-36.533,-36.533,-54.267,-54.267) Journal of Glaciology 28 99 221 238 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes Hogg, I. G. G. Paren, J. G. Timmis, R. J. Summer Heat and Ice Balances on Hodges Glacier, South Georgia, Falkland Islands Dependencies |
topic_facet |
Earth-Surface Processes |
description |
Abstract The heat and ice balances of a temperate sub-Antarctic cirque glacier were measured through the 1973–74 melt season at an altitude midway between the climatic firn limit and the snout. The melt calculated from mean daily measurements at a single level of net radiation, wind-speed, temperature, and humidity agreed with that observed at nearby budget stakes. In the central ablation zone, radiation provided (54 ± 6)% and sensible fluxes (46 ± 6)% of the heat income through the summer, which was exceptionally warm and sunny. Latent-heat fluxes made no significant contribution to the heat balance. The calculation by Smith (1960) that the radiative, sensible, and latent heat fluxes contribute about equally to ablation in this zone has not been substantiated by measurement. The measured partition of the glacier’s heat balance suggested that maritime influences on its regime are mitigated by its position in the lee of a major mountain range. |
format |
Article in Journal/Newspaper |
author |
Hogg, I. G. G. Paren, J. G. Timmis, R. J. |
author_facet |
Hogg, I. G. G. Paren, J. G. Timmis, R. J. |
author_sort |
Hogg, I. G. G. |
title |
Summer Heat and Ice Balances on Hodges Glacier, South Georgia, Falkland Islands Dependencies |
title_short |
Summer Heat and Ice Balances on Hodges Glacier, South Georgia, Falkland Islands Dependencies |
title_full |
Summer Heat and Ice Balances on Hodges Glacier, South Georgia, Falkland Islands Dependencies |
title_fullStr |
Summer Heat and Ice Balances on Hodges Glacier, South Georgia, Falkland Islands Dependencies |
title_full_unstemmed |
Summer Heat and Ice Balances on Hodges Glacier, South Georgia, Falkland Islands Dependencies |
title_sort |
summer heat and ice balances on hodges glacier, south georgia, falkland islands dependencies |
publisher |
Cambridge University Press (CUP) |
publishDate |
1982 |
url |
http://dx.doi.org/10.1017/s0022143000011606 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000011606 |
long_lat |
ENVELOPE(-36.533,-36.533,-54.267,-54.267) |
geographic |
Antarctic Hodges Glacier |
geographic_facet |
Antarctic Hodges Glacier |
genre |
Antarc* Antarctic Hodges Glacier Journal of Glaciology |
genre_facet |
Antarc* Antarctic Hodges Glacier Journal of Glaciology |
op_source |
Journal of Glaciology volume 28, issue 99, page 221-238 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000011606 |
container_title |
Journal of Glaciology |
container_volume |
28 |
container_issue |
99 |
container_start_page |
221 |
op_container_end_page |
238 |
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1792497499381956608 |