 Attribute Data
Attribute Data is presently managed by using the following systems:
NGA
The National Groundwater Archive (NGA) is a centralised web enabled database and
accessible 24 hours a day. All clients with a direct interest in groundwater can
register to search, capture and store data. Registered users can also extract
data directly via the Internet.
To register go to:
http://www3.dwa.gov.za/nganet
Enquiries: ngaur@dwa.gov.za
The NGA is populated with in excess of 254 200 Geosites across the
country, only point data.
The spatial distribution of borehole records is also available.
WMS
The Water Management System (WMS) contains over 31 000 groundwater macro element
samples, containing over 389 000 individual laboratory parameter analysis,
including data from the National
Groundwater Quality Monitoring Programme (NGwQMP).
Data request can be sent to Georequest Service at
georequests@dwa.gov.za.
HYDSTRA
This application contains surface, groundwater and rainfall data. Data from
the National Groundwater Level Monitoring
Network is included.
Data request can be sent to Georequest Service at
georequests@dwa.gov.za.
GEOSITE NUMBERING
The need to collect and capture as much groundwater-related data as possible is
indisputable. The most important mechanism in controlling this development and management
of groundwater is deemed the numbering of all geosites. Each Region was allowed
to choose a unique numbering system. To obtain numbers contact the relevant Geosite Number Allocator.
Spatial Data
Spatial Data is generally available in GIS format – coverages or shape files.
The geodatabase is an ARCGIS GEODATABASE storing all cleaned and verified
spatial hydrogeological data. 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
-
DWA Datasets.
- Groundwater
Metadata.
Queries can be sent to Georequest Service at
georequests@dwa.gov.za.
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