South African soil, land cover and weather generator file databases for SWAT

Description

This study provides multiple geo-spatial datasets at a national scale for use as baseline input to run ArcSWAT (graphical user interface for SWAT in ArcGIS) or QSWAT (graphical user interface for SWAT+ in QGIS) in South Africa. The input datasets include the following: • SWAT catchment outline data (tertiary and quaternary); • Land cover maps at 20-30 m resolution including South African National Land Cover (2014; 2018; 2020) linked to SWAT land cover codes; • A soil map with SWAT attribute data derived from pedotransfer functions of the Land Type Database of South Africa useable at a scale of 1:250,000; • Weather statistics (WGN) files for 12 weather stations obtained from the Agricultural Research Council in South Africa.

Steps to reproduce

Le Roux, J.J., Mararakanye, N., Mudaly, L., Weepener, H.L., van der Laan, M. 2022. Development of a South African national input database to run the SWAT model in a GIS, WRC report 3053/1/22. Water Research Commission: Pretoria, South Africa. ISBN 978-0-6392-0454-3. https://wrcwebsite.azurewebsites.net/wp-content/uploads/mdocs/3053%20final.pdf

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