Climatic Inferences from Former Glaciers in the South-East Grampian Highlands, Scotland
Abstract Altitudes, lengths, areas, maximum thicknesses and volumes of 27 glaciers that built up in a small area of the Scottish Highlands during the Loch Lomond (Younger Dryas) stadial are given. The influence of direct radiation on the glaciers is calculated taking into account transmissivity of t...
Published in: | Journal of Glaciology |
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Language: | English |
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Cambridge University Press (CUP)
1976
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Online Access: | http://dx.doi.org/10.1017/s0022143000013617 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000013617 |
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crcambridgeupr:10.1017/s0022143000013617 2024-03-03T08:46:01+00:00 Climatic Inferences from Former Glaciers in the South-East Grampian Highlands, Scotland Sissons, J. B. Sutherland, D. G. 1976 http://dx.doi.org/10.1017/s0022143000013617 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000013617 en eng Cambridge University Press (CUP) Journal of Glaciology volume 17, issue 76, page 325-346 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 1976 crcambridgeupr https://doi.org/10.1017/s0022143000013617 2024-02-08T08:34:04Z Abstract Altitudes, lengths, areas, maximum thicknesses and volumes of 27 glaciers that built up in a small area of the Scottish Highlands during the Loch Lomond (Younger Dryas) stadial are given. The influence of direct radiation on the glaciers is calculated taking into account transmissivity of the atmosphere, glacier aspect and surface gradient, and the albedos of ice and snow. Equilibrium firn lines for the glaciers are determined. The computed regional firn line, incorporating the influence of direct radiation had a gradient of 14.5 m/km. Former precipitation values are based on an equation for average annual mass balances of the glaciers during the stadial that incorporates glacier altitude, regional ablation gradient, direct radiation, the influence of avalanching and blowing of snow, and final glacier volume. Average July and January sea-level temperatures of 6°C and at least — 8°C, respectively, are inferred. Snowfall was principally associated with south-east winds and was similar in total to present day but rather differently distributed. Cloud amounts, at least in summer, were greater than now. A more vigorous atmospheric circulation with many depressions moving along more southerly tracks than now may have been related to the junction of polar water and North Atlantic Drift water in the immediate vicinity of the British Isles. Article in Journal/Newspaper Journal of Glaciology North Atlantic Cambridge University Press Loch Lomond ENVELOPE(-125.746,-125.746,54.239,54.239) Journal of Glaciology 17 76 325 346 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes Sissons, J. B. Sutherland, D. G. Climatic Inferences from Former Glaciers in the South-East Grampian Highlands, Scotland |
topic_facet |
Earth-Surface Processes |
description |
Abstract Altitudes, lengths, areas, maximum thicknesses and volumes of 27 glaciers that built up in a small area of the Scottish Highlands during the Loch Lomond (Younger Dryas) stadial are given. The influence of direct radiation on the glaciers is calculated taking into account transmissivity of the atmosphere, glacier aspect and surface gradient, and the albedos of ice and snow. Equilibrium firn lines for the glaciers are determined. The computed regional firn line, incorporating the influence of direct radiation had a gradient of 14.5 m/km. Former precipitation values are based on an equation for average annual mass balances of the glaciers during the stadial that incorporates glacier altitude, regional ablation gradient, direct radiation, the influence of avalanching and blowing of snow, and final glacier volume. Average July and January sea-level temperatures of 6°C and at least — 8°C, respectively, are inferred. Snowfall was principally associated with south-east winds and was similar in total to present day but rather differently distributed. Cloud amounts, at least in summer, were greater than now. A more vigorous atmospheric circulation with many depressions moving along more southerly tracks than now may have been related to the junction of polar water and North Atlantic Drift water in the immediate vicinity of the British Isles. |
format |
Article in Journal/Newspaper |
author |
Sissons, J. B. Sutherland, D. G. |
author_facet |
Sissons, J. B. Sutherland, D. G. |
author_sort |
Sissons, J. B. |
title |
Climatic Inferences from Former Glaciers in the South-East Grampian Highlands, Scotland |
title_short |
Climatic Inferences from Former Glaciers in the South-East Grampian Highlands, Scotland |
title_full |
Climatic Inferences from Former Glaciers in the South-East Grampian Highlands, Scotland |
title_fullStr |
Climatic Inferences from Former Glaciers in the South-East Grampian Highlands, Scotland |
title_full_unstemmed |
Climatic Inferences from Former Glaciers in the South-East Grampian Highlands, Scotland |
title_sort |
climatic inferences from former glaciers in the south-east grampian highlands, scotland |
publisher |
Cambridge University Press (CUP) |
publishDate |
1976 |
url |
http://dx.doi.org/10.1017/s0022143000013617 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000013617 |
long_lat |
ENVELOPE(-125.746,-125.746,54.239,54.239) |
geographic |
Loch Lomond |
geographic_facet |
Loch Lomond |
genre |
Journal of Glaciology North Atlantic |
genre_facet |
Journal of Glaciology North Atlantic |
op_source |
Journal of Glaciology volume 17, issue 76, page 325-346 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000013617 |
container_title |
Journal of Glaciology |
container_volume |
17 |
container_issue |
76 |
container_start_page |
325 |
op_container_end_page |
346 |
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1792501810564431872 |