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15-Jul-2008 4:03 PM   
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Data

Attribute Data

Attribute Data is presently managed by using the following systems:

OPEN-NGDB

The National Groundwater Database (Open-NGDB) is presently populated with in excess of 242 000 geosite records across the country, only point data. 

The spatial distribution of borehole records are also available.

Basic data can be obtained via the Georequest Service at georequests@dwaf.gov.za.

NGA

The National Groundwater Archive (NGA) is currently being developed and is a web-based system capturing all relevant groundwater related data. It will replace the Open-NGDB system.

WMS

The Water Management System (WMS) contains over 52 538 analyses of groundwater samples, mostly of macro elements. Data from the National Groundwater Quality Monitoring Programme (NGwQMP) is included.

HYDSTRA

This application contains surface, groundwater and rainfall data.  Data from the National Groundwater Level Monitoring Network is included.

Spatial Data

Spatial Data is generally available in GIS format – coverages or shapefiles. Groundwater related spatial data that are available are for example

  • Hydrogeological mapping series 1:500 000 data – groundwater occurrence, groundwater quality, borehole density distribution, elevation and rainfall
  • Hydrogeological regions
  • Harvest potential
  • DWAF Datasets.
  • Groundwater Metadata.

Queries can be sent to Georequest Service at georequests@dwaf.gov.za.

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