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Application of Earth Observation Data for Water Resources Assessment

15th Biennial Groundwater Conference The Groundwater Division of the Geological Society of South Africa hosted the 5th biennial Groundwater Conference at Spier in Stellenbosch from 16-18 October 2017 .15th Biennial Groundwater Conference The Groundwater Division of the Geological Society of South Africa hosted the 5th biennial Groundwater Conference at Spier in Stellenbosch from 16-18 October 2017 .15th Biennial Groundwater Conference The Groundwater Division of the Geological Society of South Africa hosted the 5th biennial Groundwater Conference at Spier in Stellenbosch from 16-18 October 2017 .
Overview
Objectives
Lead Researchers
Student Researchers
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    • ​Project Overview

      Sustainable management of water requires knowledge of the temporal and spatial variations of this resource, and factors influencing both the quality and quantity of water. This knowledge has traditionally been derived from data collected from ground-based observation stations. The network of ground-based stations is declining throughout Africa partly due to inadequate funding, while at the same time the demands for data are increasing due to competing water uses. Space-based sensors (satellite and radar) capture the temporal and spatial changes in the earth system affecting water resources. Earth observation data enables estimation of rainfall, evaporation, transpiration, floods and droughts, monitoring water quality in large water bodies, identification of groundwater recharge and discharge areas, assessment of plant water relationships, and coverage of aquatic weeds. There are several products being produced from earth observation data, e.g. rainfall estimates, evapotranspiration rates, and soil moisture. However, the utility of these products, including their accuracy, needs to be assessed in different environments. This project is investigating how representative the following products are in parts of South Africa;

             a)      Precipitation from the Climate Hazards Group InfraRed Precipitation with Station data (CHIRPS) http://chg.geog.ucsb.edu/data/chirps/

             b)      Precipitation estimates from the Tropical Applications of Meteorology using SATellite (TAMSAT), http://www.tamsat.org.uk/

             c)      MOD16 global evapotranspiration, https://modis.gsfc.nasa.gov/data/dataprod/mod16.php

             d)     Soil moisture estimates derived from the Advanced SCATterometer (ASCAT) http://www.eumetsat.int/


    • ​Project Objectives

    • Research Students

    • First Name & Surname » Year

    • Jason, Moller » 2012-2014

    • Eugune, Maswanganye » 2015-Present

    • Nolusindiso, Ndara » 2015-Present

    • Gallery

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COLLABORATING PARTNERS

 
     

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South African Environmental Observation Network of the National Research Foundation
Faculty of Geo-information Science and Earth Observation (ITC), University of Twente, The Netherlands
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