Editing Hydrogeology of Ethiopia

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Annual renewable groundwater resources are estimated at around 36,000 million cubic metres (36 billion cubic metres) , with estimates of total groundwater storage varying from 1,000 to 10,000 billion m³.
 
Annual renewable groundwater resources are estimated at around 36,000 million cubic metres (36 billion cubic metres) , with estimates of total groundwater storage varying from 1,000 to 10,000 billion m³.
  
;Groundwater quality:  
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;Groundwater guality:  
 
An estimated 30% of groundwater storage is not available for direct use because of high salinity and/or high fluoride.   
 
An estimated 30% of groundwater storage is not available for direct use because of high salinity and/or high fluoride.   
  
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Informal local water user organisations exist for most small-scale traditional water schemes, including groundwater, that operate on more than an individual/household level, and typically do not have legal recognition or support. For formal and most modern schemes, there is usually a formal statutory water user association or irrigation cooperative.  
 
Informal local water user organisations exist for most small-scale traditional water schemes, including groundwater, that operate on more than an individual/household level, and typically do not have legal recognition or support. For formal and most modern schemes, there is usually a formal statutory water user association or irrigation cooperative.  
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=== Groundwater data===
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Hydrogeological and hydrochemical maps at 1:250,000 scale, with explanatory notes, are available to view and download (as pdf files) from the [http://gis.gse.gov.et/hg_maps/ '''Geological Survey of Ethiopia portal''']. The Geological Survey of Ethiopia website gives background information on [http://www.gse.gov.et/index.php/2016/09/03/hydro-geological-mapping/ hydrogeological mapping ].
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Maps, data and reports from the project [https://gw4e.acaciadata.com/home '''Groundwater mapping for climate resilient WASH in arid and semi-arid areas of Ethiopia'''] (2018-2020) can be visualized and downloaded from a public webservice system, the [https://gw4e.acaciadata.com/home '''GW4E viewer''']. This includes harmonized geological maps, groundwater suitability maps and socio-economic maps on a scale of 1:250,000 for eight clusters in Ethiopia, and 1:50,000 hydrogeological maps and 1:10,000 drilling maps for target kebeles.
  
 
=== Transboundary aquifers===
 
=== Transboundary aquifers===
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Information on particular groundwater projects in Ethiopia, including links to project results and outputs, can be found on the [[Ethiopia Groundwater Projects | Ethiopia groundwater projects]] page.
 
Information on particular groundwater projects in Ethiopia, including links to project results and outputs, can be found on the [[Ethiopia Groundwater Projects | Ethiopia groundwater projects]] page.
  
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==References==
  
==References and further information==
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Many of the references below, and others relating to the hydrogeology of Ethiopia, can be accessed through the [https://www2.bgs.ac.uk/africagroundwateratlas/atlas.cfc?method=listResults&title_search=&titleboolean=AND&author_search=&category=&child_category=&country=ET Africa Groundwater Literature Archive].
 
 
Many of the documents below, and others relating to the hydrogeology of Ethiopia, can be accessed through the [https://www2.bgs.ac.uk/africagroundwateratlas/atlas.cfc?method=listResults&title_search=&titleboolean=AND&author_search=&category=&child_category=&country=ET Africa Groundwater Literature Archive].
 
 
 
===Maps===
 
 
 
As well as the Atlas overview [https://www.bgs.ac.uk/africagroundwateratlas/downloadGIS.html Ethiopia geology and hydrogeology map'''] available to download as a GIS file from this page, other geological and hydrogeological maps are available:
 
 
 
Hydrogeological and hydrochemical maps at 1:250,000 scale, with explanatory notes, are available to view and download (as pdf files) from the [http://gis.gse.gov.et/hg_maps/ '''Geological Survey of Ethiopia portal''']. The Geological Survey of Ethiopia website gives background information on [http://www.gse.gov.et/index.php/2016/09/03/hydro-geological-mapping/ hydrogeological mapping ].
 
 
 
Maps, data and reports from the project [https://gw4e.acaciadata.com/home '''Groundwater mapping for climate resilient WASH in arid and semi-arid areas of Ethiopia'''] (2018-2020) can be visualized and downloaded from a public webservice system, the [https://gw4e.acaciadata.com/home '''GW4E viewer''']. This includes harmonized geological maps, groundwater suitability maps and socio-economic maps on a scale of 1:250,000 for eight clusters in Ethiopia, and 1:50,000 hydrogeological maps and 1:10,000 drilling maps for target kebeles.
 
  
 
===Geology: key references===
 
===Geology: key references===

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