Antarctic sea-ice extent, Southern hemisphere circulation and South African rainfall
Bibliography: p. 293-304. The study examines the response of an atmospheric general circulation model (OCM) to a reduction in Antarctic sea-ice extent during summer and winter, with emphasis on non-polar and southern African climates. Following an evaluation of the OCM, the control and perturbation...
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University of Cape Town
1998
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Online Access: | http://hdl.handle.net/11427/9682 https://open.uct.ac.za/bitstream/11427/9682/1/thesis_sci_1998_hudson_da.pdf |
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ftunivcapetownir:oai:localhost:11427/9682 2023-05-15T13:54:58+02:00 Antarctic sea-ice extent, Southern hemisphere circulation and South African rainfall Hudson, Debra Alison Hewitson, Bruce 1998 application/pdf http://hdl.handle.net/11427/9682 https://open.uct.ac.za/bitstream/11427/9682/1/thesis_sci_1998_hudson_da.pdf eng eng University of Cape Town Faculty of Science Department of Environmental and Geographical Science http://hdl.handle.net/11427/9682 https://open.uct.ac.za/bitstream/11427/9682/1/thesis_sci_1998_hudson_da.pdf Environmental and Geographical Science Doctoral Thesis Doctoral PhD 1998 ftunivcapetownir 2022-09-13T05:50:16Z Bibliography: p. 293-304. The study examines the response of an atmospheric general circulation model (OCM) to a reduction in Antarctic sea-ice extent during summer and winter, with emphasis on non-polar and southern African climates. Following an evaluation of the OCM, the control and perturbation simulations are analysed. The controls are forced by prescribed, observed sea surface temperatures (SSTs) and sea-ice extents, while in the perturbation simulations sea-ice is reduced and replaced with SSTs. The introduced anomalies are derived from an algorithm based on observed ice variability. The simulations are restarts of an AMIP (Atmospheric Model Intercomparison Project) configured simulation, and two summers (1979/80 and 1984185) and two winters (1980 and 1985) have been selected for the study. Three replicates have been performed for each time period for both the control and perturbation conditions. Doctoral or Postdoctoral Thesis Antarc* Antarctic Sea ice University of Cape Town: OpenUCT Antarctic |
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Open Polar |
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University of Cape Town: OpenUCT |
op_collection_id |
ftunivcapetownir |
language |
English |
topic |
Environmental and Geographical Science |
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Environmental and Geographical Science Hudson, Debra Alison Antarctic sea-ice extent, Southern hemisphere circulation and South African rainfall |
topic_facet |
Environmental and Geographical Science |
description |
Bibliography: p. 293-304. The study examines the response of an atmospheric general circulation model (OCM) to a reduction in Antarctic sea-ice extent during summer and winter, with emphasis on non-polar and southern African climates. Following an evaluation of the OCM, the control and perturbation simulations are analysed. The controls are forced by prescribed, observed sea surface temperatures (SSTs) and sea-ice extents, while in the perturbation simulations sea-ice is reduced and replaced with SSTs. The introduced anomalies are derived from an algorithm based on observed ice variability. The simulations are restarts of an AMIP (Atmospheric Model Intercomparison Project) configured simulation, and two summers (1979/80 and 1984185) and two winters (1980 and 1985) have been selected for the study. Three replicates have been performed for each time period for both the control and perturbation conditions. |
author2 |
Hewitson, Bruce |
format |
Doctoral or Postdoctoral Thesis |
author |
Hudson, Debra Alison |
author_facet |
Hudson, Debra Alison |
author_sort |
Hudson, Debra Alison |
title |
Antarctic sea-ice extent, Southern hemisphere circulation and South African rainfall |
title_short |
Antarctic sea-ice extent, Southern hemisphere circulation and South African rainfall |
title_full |
Antarctic sea-ice extent, Southern hemisphere circulation and South African rainfall |
title_fullStr |
Antarctic sea-ice extent, Southern hemisphere circulation and South African rainfall |
title_full_unstemmed |
Antarctic sea-ice extent, Southern hemisphere circulation and South African rainfall |
title_sort |
antarctic sea-ice extent, southern hemisphere circulation and south african rainfall |
publisher |
University of Cape Town |
publishDate |
1998 |
url |
http://hdl.handle.net/11427/9682 https://open.uct.ac.za/bitstream/11427/9682/1/thesis_sci_1998_hudson_da.pdf |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Sea ice |
genre_facet |
Antarc* Antarctic Sea ice |
op_relation |
http://hdl.handle.net/11427/9682 https://open.uct.ac.za/bitstream/11427/9682/1/thesis_sci_1998_hudson_da.pdf |
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