Kruger, ACGoliger, Adam MRetief, JVSekele, S2010-08-202010-08-202010-01Kruger, AC, Goliger, AM, Retief, JV and Sekele, S. 2010. Strong wind climatic zones in South Africa. Wind & Structures, Vol. 13(1), pp 37-551226-6116http://technopress.kaist.ac.kr/samplejournal/pdf/was1301003.pdfhttp://hdl.handle.net/10204/4187Copyright: 2010 Techno Press. This is the pre-print version of the work. The definitive version is published in Wind and Structures Journal, Vol 31(1), pp 37-55In this paper South Africa is divided into strong wind climate zones, which indicate the main sources of annual maximum wind gusts. By the analysis of wind gust data of 94 weather stations, which had continuous climate time series of 10 years or longer, six sources, or strong-wind producing mechanisms, could be identified and zoned accordingly. The two primary causes of strong wind gusts are thunderstorm activity and extratropical low pressure systems, which are associated with the passage of cold fronts over the southern African subcontinent. Over the eastern and central interior of South Africa annual maximum wind gusts are usually caused by thunderstorm gust fronts during summer, while in the western and southern interior extratropical cyclones play the most dominant role. Along the coast and adjacent interior annual extreme gusts are usually caused by extratropical cyclones. Four secondary sources of strong winds are the ridging of the quasi-stationary Atlantic and Indian Ocean high pressure systems over the subcontinent, surface troughs to the west in the interior with strong ridging from the east, convergence from the interior towards isolated low pressure systems or deep coastal low pressure systems, and deep surface troughs on the West Coast.enStrong windsWind climateClimate zonesExtratropical cyclonesArticleKruger, A., Goliger, A. M., Retief, J., & Sekele, S. (2010). Strong wind climatic zones in South Africa. http://hdl.handle.net/10204/4187Kruger, AC, Adam M Goliger, JV Retief, and S Sekele "Strong wind climatic zones in South Africa." (2010) http://hdl.handle.net/10204/4187Kruger A, Goliger AM, Retief J, Sekele S. Strong wind climatic zones in South Africa. 2010; http://hdl.handle.net/10204/4187.TY - Article AU - Kruger, AC AU - Goliger, Adam M AU - Retief, JV AU - Sekele, S AB - In this paper South Africa is divided into strong wind climate zones, which indicate the main sources of annual maximum wind gusts. By the analysis of wind gust data of 94 weather stations, which had continuous climate time series of 10 years or longer, six sources, or strong-wind producing mechanisms, could be identified and zoned accordingly. The two primary causes of strong wind gusts are thunderstorm activity and extratropical low pressure systems, which are associated with the passage of cold fronts over the southern African subcontinent. Over the eastern and central interior of South Africa annual maximum wind gusts are usually caused by thunderstorm gust fronts during summer, while in the western and southern interior extratropical cyclones play the most dominant role. Along the coast and adjacent interior annual extreme gusts are usually caused by extratropical cyclones. Four secondary sources of strong winds are the ridging of the quasi-stationary Atlantic and Indian Ocean high pressure systems over the subcontinent, surface troughs to the west in the interior with strong ridging from the east, convergence from the interior towards isolated low pressure systems or deep coastal low pressure systems, and deep surface troughs on the West Coast. DA - 2010-01 DB - ResearchSpace DP - CSIR KW - Strong winds KW - Wind climate KW - Climate zones KW - Extratropical cyclones LK - https://researchspace.csir.co.za PY - 2010 SM - 1226-6116 T1 - Strong wind climatic zones in South Africa TI - Strong wind climatic zones in South Africa UR - http://hdl.handle.net/10204/4187 ER -