1. School of Agricultural, Earth and Environmental Sciences, University of KwaZulu-Natal, Private Bag X01, Scottsville, Pietermaritzburg 3209, South Africa
2. Geography Department, School of Agricultural, Earth and Environmental Sciences, University of KwaZulu-Natal, Private Bag X01, Scottsville, Pietermaritzburg 3209, South Africa
3. Water Research Node, Monash South Africa, Private Bag X60, Roodepoort 1725, South Africa
4. Monash University Australia, Water Research Node – Monash South Africa, Private Bag X60, Roodepoort 1725, South Africa