1. Department of Geography, Environmental Management and Energy Studies, University of Johannesburg, Auckland Park Campus, Johannesburg, South Africa
2. Council for Scientific and Industrial Research, Brummeria, Pretoria, Smart Places, South Africa
3. Department of Electrical and Electronic Engineering Science, University of Johannesburg, Auckland Park Campus, Johannesburg, South Africa
4. South African Weather Service, Centurion, Pretoria, South Africa