Author:Sivakumar, V; Gizaw Mengistu, DT; Botai, OJDate:2009The aim of this work is to construct a model (mean) profile for ozone and water vapor in Southern hemisphere latitude using 14 years (1993-2006) of Halogen Occultation Experiment (HALOE) satellite data and about 10 years (1998-2007) of the ...Read more
Author:Botai, OJ; Sivakumar, V; Combrinck, CL; Rautenbach, CJDDate:2009In this study, data from the Southern Hemisphere ADditional OZonesondes (SHADOZ) are used to compute the spatially averaged water vapour (WVg) over low and mid-tropical Africa. Based on the SHADOZ stations, reanalysis data from the National ...Read more
Author:Sivakumar, V; Bencherif, H; Begue, N; Thompson, AMDate:Jul 2011In this paper, tropopause characteristics observed from tropical to subtropical Southern Hemisphere stations using Southern Hemisphere Additional Ozonesonde (SHADOZ) data are presented for the 11-yr period of 1998–2008. Three different ...Read more