Browsing by Author "Chaoka, T.R."
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Assessment of groundwater pollution vulnerability and modelling of the Kanye Wellfield in SE Botswana—a GIS approach
Alemaw, B.F.; Shemang, E.M.; Chaoka, T.R. (Elsevier Science Ltd, http://www.elsevier.com/locate/pce, 2004)Botswana is a semi-arid country with limited recharge to groundwater resources. Groundwater however is a major source of water for domestic, industrial and agricultural uses. There is therefore the need to ensure that the ... -
A continental scale water balance model: a GIS-approach for Southern Africa
Alemaw, B.F.; Chaoka, T.R. (Pergamon www.elsevier.com/locate/pce, 2003)A distributed GIS-based hydrological model is developed using GIS and computational hydrology techniques. The model is based on water balance consideration of the surface and subsurface processes. The surface water balance ... -
A continental scale water balance model: a GIS-approach for Southern Africa
Alemaw, B.F.; Chaoka, T.R. (Pergamon www.elsevier.com/locate/pce, 2003)A distributed GIS-based hydrological model is developed using GIS and computational hydrology techniques. The model is based on water balance consideration of the surface and subsurface processes. The surface water balance ... -
Investigation of sustainability of rain-fed agriculture through soil moisture modeling in the Pandamatenga Plains of Botswana
Alemaw, B.F.; Chaoka, T.R.; Totolo, O. (Elsevier Ltd. http://www.elsevier.com/wps/find/journaldescription.cws_home/413/description#description, 2006)The agricultural economic sector of Botswana is limited mainly to range resources-based livestock and pockets of arable farming based on rainfall and limited irrigated agriculture at several places. In this study agricultural ... -
Rainfall interpolation using a remote sensing CCD data in a tropical basin – A GIS and geostatistical application
Moges, S.A.; Alemaw, B.F.; Chaoka, T.R.; Kachroo, R.K. (Elsevier, www.elsevier.com/locate/pce, 2007)This paper is aimed at developing a geostatistical model to improve interpolated annual and monthly rainfall variation using remotely- sensed cold cloud duration (CCD) data as a background image. The data set consists of ...