Difference between revisions of "Groundwater Data"

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By groundwater data, we mean measured physical or chemical information on groundwater collected at point groundwater sources - such as boreholes, wells or springs. Groundwater data includes:
 
By groundwater data, we mean measured physical or chemical information on groundwater collected at point groundwater sources - such as boreholes, wells or springs. Groundwater data includes:
  
; groundwater levels measured in boreholes or wells: rest or static water levels; pumped water levels - one-off measurements or monitored over time
+
* groundwater levels measured in boreholes or wells: rest or static water levels; pumped water levels - one-off measurements or monitored over time
; test pumping data: water levels; pumping rates; aquifer properties calculated from test data
+
* test pumping data: water levels; pumping rates; aquifer properties calculated from test data
; estimated sustainable yields for boreholes or wells
+
* estimated sustainable yields for boreholes or wells
; measured groundwater chemistry and microbiological parameters
+
* measured groundwater chemistry and microbiological parameters
; borehole drilling logs with geological information, water strikes and borehole construction information.
+
* borehole drilling logs with geological information, water strikes and borehole construction information.
  
 
Collecting, checking, storing and managing groundwater data so that it can be effectively used (e.g. for groundwater development and management) is challenging. Most countries have a national borehole inventory, holding geological and groundwater data from the time of borehole drilling. Many countries also have strategic groundwater level monitoring networks and some also have a strategic groundwater quality monitoring network, with the monitoring data stored in databases at national level.
 
Collecting, checking, storing and managing groundwater data so that it can be effectively used (e.g. for groundwater development and management) is challenging. Most countries have a national borehole inventory, holding geological and groundwater data from the time of borehole drilling. Many countries also have strategic groundwater level monitoring networks and some also have a strategic groundwater quality monitoring network, with the monitoring data stored in databases at national level.

Revision as of 10:44, 24 September 2018

Africa Groundwater Atlas >> Groundwater Data

 This page is still being developed. Please check back soon for more information.

Groundwater Data

On this page are links to sources of groundwater data, with a particular focus on Africa.

By groundwater data, we mean measured physical or chemical information on groundwater collected at point groundwater sources - such as boreholes, wells or springs. Groundwater data includes:

  • groundwater levels measured in boreholes or wells: rest or static water levels; pumped water levels - one-off measurements or monitored over time
  • test pumping data: water levels; pumping rates; aquifer properties calculated from test data
  • estimated sustainable yields for boreholes or wells
  • measured groundwater chemistry and microbiological parameters
  • borehole drilling logs with geological information, water strikes and borehole construction information.

Collecting, checking, storing and managing groundwater data so that it can be effectively used (e.g. for groundwater development and management) is challenging. Most countries have a national borehole inventory, holding geological and groundwater data from the time of borehole drilling. Many countries also have strategic groundwater level monitoring networks and some also have a strategic groundwater quality monitoring network, with the monitoring data stored in databases at national level.

Groundwater data is different from water point data. In recent years, the availability of water point data, as part of WASH strategies, has seen huge improvements, with the development of procedures, databases & digital apps for more efficient collection, storage and availability of water point data in Africa, at project, organisation and national level, including the development of online databases. Some examples of data portals or digital technologies for water point data collection and management are: MWater; the Water Point Data Exchange (WPDx); Akvo Flow; Water Point Mapper; and the Sierra Leone national WASH Data Portal. However, although most water points in Africa are groundwater sources, water point databases typically contain little groundwater data, and therefore can tell us little about the groundwater resource on which the water points rely.


Africa-wide or Global Groundwater Data Sources

Chronicles Consortium

The Chronicles Consortium initiative is collating long term - multi-decadal - records of groundwater levels from around Africa.


IGRAC Global Groundwater Information System

IGRAC hosts the Global Groundwater Information System (GGIS) - an interactive, web-based portal to groundwater-related information. This includes some groundwater level monitoring data collated from a number of countries, including some in Africa, in the Global Groundwater Monitoring Network (GGMN).


UNHCR Refugee Site Borehole Data

The UNHCR have an online WASH GIS portal, which includes groundwater data from water boreholes at UNHCR refugee sites, including borehole locations, depths, casing diameters, rest (static) water levels and estimated safe yields.

EAWAG Groundwater Quality information

EAWAG (the Swiss Federal Institute of Aquatic Science and Technology) developed the Groundwater Assessment Platform, with information on geogenic (naturally occurring in groundwater) contaminants. This database includes some measured data on groundwater arsenic and fluoride concentrations, including in Africa.


Country-specific Groundwater Data Sources

Project-based Groundwater Data Sources

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