n Clean Air Journal = Tydskrif vir Skoon Lug - Climate change impacts on mean wind speeds in South Africa
|Article Title||Climate change impacts on mean wind speeds in South Africa|
|© Publisher:||National Association for Clean Air (NACA)|
|Journal||Clean Air Journal = Tydskrif vir Skoon Lug|
|Affiliations||1 University of Pretoria and 2 University of Pretoria|
|Publication Date||Nov 2015|
|Pages||17 - 25|
|Keyword(s)||Air pollution, Climate change, Climate models, Mitigation and Wind speed|
Climate change could potentially affect a number of variables that impact the dispersal of and human exposure to air pollutants, as well as climate dependent sectors such as wind energy. This study attempted to quantify the projected changes in seasonal daily mean wind speeds for South Africa around the mid-21st century (2051-2075) under two different atmospheric heat pathways. Seasonal daily mean wind speed increases rarely reach 6% and decreases occur to a maximum of 3% and are variable between different seasons and areas within the country. In all seasons except December-January-February, wind speeds are projected to increase in the Highveld region, suggesting that air pollution dispersing conditions could increase. Wind direction at the 850hPa-level show minor changes, except over the Western and Eastern Cape provinces.
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