Projects

Improving drilling success rate with remote sensing

In Afar and Tigray regions, Ethiopia

Posted on 2 June 2016

dws-project-ethiopia-remotesensing

Currently up to 80% of domestic water supply in Ethiopia is sourced from groundwater. Nevertheless Ethiopia’s groundwater drilling program faces serious challenges: I) negative wells up on drilling following poor site selection; II) yield reduction of boreholes after few years of service  due to variety of factors; III) poor design and construction of wells after drilling and IIII) return of poor quality water in drilled wells.

Acacia Water is introduced the Groundwater Analysis Methodology (GwA). Using this methodology shallow groundwater occurrence and location of favourable sites for well drilling and buffering interventions can be mapped. The results are maps indicating the most feasible areas to further investigate the existence of fresh groundwater. To create maps of these kind, to specify final drilling locations, a detailed siting study is required involving additional geophysical exploration. The methodology makes extensive use of public domain high resolution datasets with temporal changes in precipitation, soil moisture, (potential) evapotranspiration and vegetation cover. To create maps of these kind, to specify final drilling locations, a detailed siting study is required involving additional geophysical exploration. The methodology makes extensive use of public domain high resolution datasets with temporal changes in precipitation, soil moisture, evapotranspiration and vegetation cover.

Project location

Project partners

  • Acacia Water