Summer heat and ice balances on Hodges Glacier, South Georgia, Falkland Islands Dependencies
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 h...
Published in: | Journal of Glaciology |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
1982
|
Subjects: | |
Online Access: | http://nora.nerc.ac.uk/id/eprint/524385/ https://doi.org/10.3189/S0022143000011606 |
id |
ftnerc:oai:nora.nerc.ac.uk:524385 |
---|---|
record_format |
openpolar |
spelling |
ftnerc:oai:nora.nerc.ac.uk:524385 2023-05-15T13:41:43+02:00 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://nora.nerc.ac.uk/id/eprint/524385/ https://doi.org/10.3189/S0022143000011606 unknown Hogg, I.G.G.; Paren, J.G.; Timmis, R.J. 1982 Summer heat and ice balances on Hodges Glacier, South Georgia, Falkland Islands Dependencies. Journal of Glaciology, 28 (99). 221-238. https://doi.org/10.3189/S0022143000011606 <https://doi.org/10.3189/S0022143000011606> Publication - Article PeerReviewed 1982 ftnerc https://doi.org/10.3189/S0022143000011606 2023-02-04T19:48:50Z 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 Natural Environment Research Council: NERC Open Research Archive Antarctic Hodges Glacier ENVELOPE(-36.533,-36.533,-54.267,-54.267) Journal of Glaciology 28 99 221 238 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
description |
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. |
spellingShingle |
Hogg, I.G.G. Paren, J.G. Timmis, R.J. Summer heat and ice balances on Hodges Glacier, South Georgia, Falkland Islands Dependencies |
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 |
publishDate |
1982 |
url |
http://nora.nerc.ac.uk/id/eprint/524385/ https://doi.org/10.3189/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_relation |
Hogg, I.G.G.; Paren, J.G.; Timmis, R.J. 1982 Summer heat and ice balances on Hodges Glacier, South Georgia, Falkland Islands Dependencies. Journal of Glaciology, 28 (99). 221-238. https://doi.org/10.3189/S0022143000011606 <https://doi.org/10.3189/S0022143000011606> |
op_doi |
https://doi.org/10.3189/S0022143000011606 |
container_title |
Journal of Glaciology |
container_volume |
28 |
container_issue |
99 |
container_start_page |
221 |
op_container_end_page |
238 |
_version_ |
1766155487643959296 |