Using GIS and Remote Sensing to Access Water in the Drought

Prone areas of Ethiopia and Madagascar

Girl from Afar drinking water


In order to improve drilling success rates, it is vital to undertake reliable groundwater investigations. However, conventional methods of generating large scale hydrogeological maps require a huge amount of time, manpower, logistical and financial resources.

Remote sensing (RS) is a precursor to detailed hydrogeological field studies. The technique utilizes satellite technology to scan the earth and identify the most favorable sites for borehole drilling. The advantage of using RS data includes its large spatial coverage and homogeneous data acquisition.



Wash Field note
• Dr Samuel Godfrey, East and Southern Africa WASH Advisor, UNICEF ESAR • Michele Paba, WASH Specialist, UNICEF Ethiopia Charles Serele, PhD., WASH Specialist, UNICEF Madagascar
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