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- Browsing Research Articles (Geography, Geoinformatics and Meteorology) by Issue Date
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Browsing Research Articles (Geography, Geoinformatics and Meteorology) by Issue Date
Now showing items 1-20 of 615
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(Wiley, 2001)Clear air turbulence (CAT) at high altitude remains a hazard to aviation which can result in passenger injury and aircraft damage. Two limited surveys of CAT events over South Africa, 1993-1995 (inclusive) and 1998, are ...
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(Taylor & Francis, 2007-01)The advancement of distance learning as an educational tool for geographic information systems (GIS) has been at the forefront of educational development at tertiary institutions in the last decade in South Africa. Distance ...
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(Agricultural Research Council, ARC-OVI and the University of Pretoria, 2007-03)The suitability of present and future climates for 30 Rhipicephalus species in Africa are predicted using a simple climate envelope model as well as a Division of Atmospheric Research Limited-Area Model (DARLAM). DARLAM's ...
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(Academy of Science of South Africa, 2007-03)With the advent of ever faster computers, the operational use of nonhydrostatic atmospheric models at resolutions beyond the hydrostatic limit has become a reality. A renewed global research effort is being made to formulate ...
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(Elsevier, 2007-04-15)The steady-state surface compositions of the polar (O and Zn terminated) faces of ZnO{0 0 0 1} produced by low energy (0.3–2 keV) Ar+ ion bombardment were studied by Auger electron spectroscopy and electron energy loss ...
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(Academy of Science of South Africa, 2007-07)Loss of topsoil is one of the principal soil degradation problems confronting agriculture throughout South Africa and receives special attention by policy-makers. For effective prevention and remediation, the spatial extent ...
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(Wiley, 2007-08)Fog that reduces visibility to the point where aircraft have to divert to another airport is not uncommon at Abu Dhabi International Airport (ADIA) in the United Arab Emirates (UAE). Over the period 1982 to 2003, ...
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(Academy of Science of South Africa, 2007-09)Rainfall intensity, kinetic energy and erosivity were analysed for 106 erosive storm events at five locations in the KwaZulu-Natal Drakensberg, from late 2001 to early in 2006. The stations cover an altitudinal range of ...
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(Academy of Science of South Africa, 2007-09)The heritage of San rock art in southern Africa is globally acknowledged, and was one of the primary reasons for the successful nomination of the uKhahlamba / Drakensberg Park in South Africa as a World Heritage Site. ...
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(Wiley, 2007-12)Estimates have been made that, annually, up to about two billion tons of dust are carried up into the atmosphere, mainly by dust storms. One dust storm can lift and deposit more than 200 tons of dust (Griffin et ...
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(Blackwell, 2008)Located near the south-eastern limit of Africa, the Lesotho–Drakensberg and associated escarpment is the highest range of African mountains south of the massifs in Tanzania. At the escarpment summit and on the adjacent ...
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(CRIMSA, 2008)While local researchers postulate the proximate causes of crime, few spatial-ecological studies have been used to investigate the location of offenders. In this study, for the first time in a South African context, the ...
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(CRIMSA, 2008)South Africa is a country ravaged by crime, yet few theoretical frameworks exist by which to guide crime reduction initiatives, and none incorporating a spatial component. Crime scientists are becoming increasingly aware ...
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(Springer, 2008)No abstract available
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(Society of South African Geographers, 2008)The aim of this paper is to improve knowledge on the spatial origin and development of criminal offenders within the Tshwane municipality. A preliminary socio-demographic profile of offenders residing within Tshwane is ...
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Rock weathering on the eastern mountains of southern Africa : review and insights from case studies (Elsevier, 2009)The mountains in the eastern region of southern Africa are of significant regional importance, providing for a diverse range of land use including conservation, tourism and subsistence agriculture. The higher regions are ...
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(Copernicus on behalf of the European Geosciences Union, 2009)This paper mainly focuses on the validation of temperature estimates derived with the newly launched Constellation Observing System for Meteorology Ionosphere and Climate (COSMIC)/Formosa Satellite 3 (FORMOSAT- 3) system. ...
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Improving land cover class separation using an extended Kalman filter on MODIS NDVI time-series data (Institute of Electrical and Electronics Engineers, 2009)It is proposed that the normalized difference vegetation index time series derived from Moderate Resolution Imaging Spectroradiometer satellite data can be modeled as a triply (mean, phase, and amplitude) modulated cosine ...
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(European Geosciences Union, 2009)In this paper, we present seasonal and nocturnal variations of mesospheric sodium (Na) layer parameters observed over Gadanki (13.5° N, 79.2° E), based on 166 nights during the period from January 2005 to December 2006, ...
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(Elsevier, 2009)The recent increasing trend in the severity of floods, especially across West Africa has been due largely to severe storm outbreaks which are complex and difficult to predict. Most of the weather forecasting centers in ...
Now showing items 1-20 of 615