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Wind changes above warm Agulhas Current eddies

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dc.contributor.author Roualt, M
dc.contributor.author Backeberg, Björn
dc.date.accessioned 2017-06-07T07:02:10Z
dc.date.available 2017-06-07T07:02:10Z
dc.date.issued 2016-10
dc.identifier.citation Roualt, M. and Backeberg, B. 2016. Wind changes above warm Agulhas Current eddies. Proceedings of the 32nd Annual Conference of the South African Society for Atmospheric Science, 31 October - 1 November 2016, Cape Town, South Africa en_US
dc.identifier.isbn 978-0-620-72974-1
dc.identifier.uri http://www.csag.uct.ac.za/wp-content/uploads/2016/04/SASAS_2016_Conference_Proceedings_Final_18Nov_16.pdf
dc.identifier.uri http://hdl.handle.net/10204/9131
dc.description Proceedings of the 32nd Annual Conference of the South African Society for Atmospheric Science, 31 October - 1 November 2016, Cape Town, South Africa en_US
dc.description.abstract Sea-surface temperature (SST), altimetry derived sea-level anomalies (SLA) and surface current are used south of the Agulhas Current to identify warm core mesoscale ocean eddies presenting a distinct SST perturbation superior to 1(supo)C to the surrounding ocean. The analysis of 960 twice daily instantaneous charts of equivalent stability neutral wind speed estimates from the SeaWinds scatterometer onboard the QuikScat satellite collocated with SST during the lifespan of six warm eddies show stronger wind speed above those warm eddies than surrounding water for half of the cases. For cases where the wind is stronger above warm eddies, there is no relationship between the increase in surface wind speed and the SST perturbation. Mean wind increase is about 15 % at 1.8 m.s(sup-1). Wind speed increase of 4 to 7 m.s(sup-1) above warm eddies is not uncommon. Average eddy radius is 100 km and SST perturbations range from 1(supo)C to 6(supo)C. en_US
dc.language.iso en en_US
dc.publisher South African Society for Atmospheric Sciences en_US
dc.relation.ispartofseries Worklist;18299
dc.subject Agulhas current eddies en_US
dc.subject Sea surface temperatures en_US
dc.subject Wind changes en_US
dc.subject Ocean eddies en_US
dc.title Wind changes above warm Agulhas Current eddies en_US
dc.type Conference Presentation en_US
dc.identifier.apacitation Roualt, M., & Backeberg, B. (2016). Wind changes above warm Agulhas Current eddies. South African Society for Atmospheric Sciences. http://hdl.handle.net/10204/9131 en_ZA
dc.identifier.chicagocitation Roualt, M, and Björn Backeberg. "Wind changes above warm Agulhas Current eddies." (2016): http://hdl.handle.net/10204/9131 en_ZA
dc.identifier.vancouvercitation Roualt M, Backeberg B, Wind changes above warm Agulhas Current eddies; South African Society for Atmospheric Sciences; 2016. http://hdl.handle.net/10204/9131 . en_ZA
dc.identifier.ris TY - Conference Presentation AU - Roualt, M AU - Backeberg, Björn AB - Sea-surface temperature (SST), altimetry derived sea-level anomalies (SLA) and surface current are used south of the Agulhas Current to identify warm core mesoscale ocean eddies presenting a distinct SST perturbation superior to 1(supo)C to the surrounding ocean. The analysis of 960 twice daily instantaneous charts of equivalent stability neutral wind speed estimates from the SeaWinds scatterometer onboard the QuikScat satellite collocated with SST during the lifespan of six warm eddies show stronger wind speed above those warm eddies than surrounding water for half of the cases. For cases where the wind is stronger above warm eddies, there is no relationship between the increase in surface wind speed and the SST perturbation. Mean wind increase is about 15 % at 1.8 m.s(sup-1). Wind speed increase of 4 to 7 m.s(sup-1) above warm eddies is not uncommon. Average eddy radius is 100 km and SST perturbations range from 1(supo)C to 6(supo)C. DA - 2016-10 DB - ResearchSpace DP - CSIR KW - Agulhas current eddies KW - Sea surface temperatures KW - Wind changes KW - Ocean eddies LK - https://researchspace.csir.co.za PY - 2016 SM - 978-0-620-72974-1 T1 - Wind changes above warm Agulhas Current eddies TI - Wind changes above warm Agulhas Current eddies UR - http://hdl.handle.net/10204/9131 ER - en_ZA


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