On the Albedo of Snow in Antarctica: A Contribution to I.A.G.O.
Abstract As part of a larger experiment, detailed albedo measurements were carried out during the austral summer of 1985-86 in the dry-snow zone (1560 m) of Terre Adélie, eastern Antarctica. The following results were found: (1) Mean albedo values were high (around 82.6%). On clear days, the albedo...
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1988
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Online Access: | http://dx.doi.org/10.1017/s0022143000009011 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000009011 |
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crcambridgeupr:10.1017/s0022143000009011 2024-03-03T08:38:38+00:00 On the Albedo of Snow in Antarctica: A Contribution to I.A.G.O. Wendler, Gerd Kelley, John 1988 http://dx.doi.org/10.1017/s0022143000009011 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000009011 en eng Cambridge University Press (CUP) Journal of Glaciology volume 34, issue 116, page 19-25 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 1988 crcambridgeupr https://doi.org/10.1017/s0022143000009011 2024-02-08T08:36:15Z Abstract As part of a larger experiment, detailed albedo measurements were carried out during the austral summer of 1985-86 in the dry-snow zone (1560 m) of Terre Adélie, eastern Antarctica. The following results were found: (1) Mean albedo values were high (around 82.6%). On clear days, the albedo showed some dependency on the solar elevation. The dependency was slight for solar elevations above 12° but became larger with low Sun angles. (2) The albedo was found to be a function of cloud amount and type, increasing with the amount and thickness of clouds. In white-out conditions, very high albedos were found (>90%). (3) The albedo showed a dependency on the type of snow. New snow displayed higher values than older snow, whose crystals had been destroyed by mechanical action. (4) A simple model was developed to assess the influence of sastrugi on the albedo. This model could explain the asymmetric diurnal variation about solar noon of the measured albedo above a sastrugi field. The above four dependencies might explain the considerable discrepancies which can be found in the literature concerning the snow albedo of Antarctica. Article in Journal/Newspaper Antarc* Antarctica Journal of Glaciology Cambridge University Press Austral Terre Adélie ENVELOPE(139.000,139.000,-67.000,-67.000) Terre-Adélie ENVELOPE(138.991,138.991,-59.999,-59.999) Sastrugi ENVELOPE(163.683,163.683,-74.617,-74.617) Journal of Glaciology 34 116 19 25 |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes Wendler, Gerd Kelley, John On the Albedo of Snow in Antarctica: A Contribution to I.A.G.O. |
topic_facet |
Earth-Surface Processes |
description |
Abstract As part of a larger experiment, detailed albedo measurements were carried out during the austral summer of 1985-86 in the dry-snow zone (1560 m) of Terre Adélie, eastern Antarctica. The following results were found: (1) Mean albedo values were high (around 82.6%). On clear days, the albedo showed some dependency on the solar elevation. The dependency was slight for solar elevations above 12° but became larger with low Sun angles. (2) The albedo was found to be a function of cloud amount and type, increasing with the amount and thickness of clouds. In white-out conditions, very high albedos were found (>90%). (3) The albedo showed a dependency on the type of snow. New snow displayed higher values than older snow, whose crystals had been destroyed by mechanical action. (4) A simple model was developed to assess the influence of sastrugi on the albedo. This model could explain the asymmetric diurnal variation about solar noon of the measured albedo above a sastrugi field. The above four dependencies might explain the considerable discrepancies which can be found in the literature concerning the snow albedo of Antarctica. |
format |
Article in Journal/Newspaper |
author |
Wendler, Gerd Kelley, John |
author_facet |
Wendler, Gerd Kelley, John |
author_sort |
Wendler, Gerd |
title |
On the Albedo of Snow in Antarctica: A Contribution to I.A.G.O. |
title_short |
On the Albedo of Snow in Antarctica: A Contribution to I.A.G.O. |
title_full |
On the Albedo of Snow in Antarctica: A Contribution to I.A.G.O. |
title_fullStr |
On the Albedo of Snow in Antarctica: A Contribution to I.A.G.O. |
title_full_unstemmed |
On the Albedo of Snow in Antarctica: A Contribution to I.A.G.O. |
title_sort |
on the albedo of snow in antarctica: a contribution to i.a.g.o. |
publisher |
Cambridge University Press (CUP) |
publishDate |
1988 |
url |
http://dx.doi.org/10.1017/s0022143000009011 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000009011 |
long_lat |
ENVELOPE(139.000,139.000,-67.000,-67.000) ENVELOPE(138.991,138.991,-59.999,-59.999) ENVELOPE(163.683,163.683,-74.617,-74.617) |
geographic |
Austral Terre Adélie Terre-Adélie Sastrugi |
geographic_facet |
Austral Terre Adélie Terre-Adélie Sastrugi |
genre |
Antarc* Antarctica Journal of Glaciology |
genre_facet |
Antarc* Antarctica Journal of Glaciology |
op_source |
Journal of Glaciology volume 34, issue 116, page 19-25 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000009011 |
container_title |
Journal of Glaciology |
container_volume |
34 |
container_issue |
116 |
container_start_page |
19 |
op_container_end_page |
25 |
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1792507044820942848 |