Hydrogeology of South Africa: Difference between revisions

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The geology map on this page shows a simplified version of the geology at a national scale (see [[Geology | the Geology resources page]] for more details). ''The map is available to download as a shapefile (.shp) for use in GIS packages.''  
The geology map on this page shows a simplified version of the geology at a national scale (see [[Geology | the Geology resources page]] for more details). ''The map is available to download as a shapefile (.shp) for use in GIS packages.''  


[[File:South Africa_Geology.png | right]]
[[File:South Africa_Geology.png | center | border | 500px]]


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The hydrogeology map on this page shows a simplified version of the type and productivity of the main aquifers at a national scale (see [[Aquifer properties| the Aquifer properties resource page]] for more details). ''The map is available to download as a shapefile (.shp) for use in GIS packages.''
The hydrogeology map on this page shows a simplified version of the type and productivity of the main aquifers at a national scale (see [[Aquifer properties| the Aquifer properties resource page]] for more details). ''The map is available to download as a shapefile (.shp) for use in GIS packages.''


  [[File:South Africa_Hydrogeology.png]] [[File: Hydrogeology_Key.png | 500x195px]]
  [[File:South Africa_Hydrogeology.png| center | border | 500px]] [[File: Hydrogeology_Key.png |right |500px]]





Revision as of 16:03, 17 June 2015

Africa Groundwater Atlas >> Hydrogeology by country >> Hydrogeology of South Africa

Authors

Brighid Ó Dochartaigh, Kirsty Upton, British Geological Survey, UK

Geographical Setting

Map of South Africa (For more information on the datasets used in the map see the geography resources section)


General

Estimated Population in 2013* 52,980,000
Rural Population (% of total) (2013)* 36%
Total Surface Area* 1,213,090 sq km
Agricultural Land (% of total area) (2012)* 79%
Capital City Pretoria (executive); Bloemfontein (judicial); Cape Town (legislative)
Region Southern Africa
Border Countries Namibia, Botswana,Zimbabwe, Mozambique, Swaziland, Lesotho.
Annual Freshwater Withdrawal (2013)* 12.500 Million cubic metres
Annual Freshwater Withdrawal for Agriculture (2013)* 63%
Annual Freshwater Withdrawal for Domestic Use (2013)* 31%
Annual Freshwater Withdrawal for Industry (2013)* 6%
Rural Population with Access to Improved Water Source (2012)* 88%
Urban Population with Access to Improved Water Source (2012)* 99%

* Source: World Bank


Climate

Temporal variations in temperature and rainfall. Rainfall time-series and graphs of monthly average rainfall and temperature for each individual climate zone can be found on the South Africa Climate Page.


Average monthly precipitation for South Africa showing minimum and maximum (light blue), 25th and 75th percentile (blue), and median (dark blue) rainfall Average monthly temperature for South Africa showing minimum and maximum (orange), 25th and 75th percentile (red), and median (black) temperature Quarterly precipitation over the period 1950-2012 Monthly precipitation (blue) over the period 2000-2012 compared with the long term monthly average (red)

For further detail on the climate datasets used see the climate resources section.


Climate zones

Surface water


Surface Water Map of South Africa (For more information on the datasets used in the map see the surface water resources section)



Soil

Soil Map of South Africa (For map key and more information on the datasets used in the map see the soil resources section)


Land cover

File:South Africa LandCover.png
Land Cover Map of South Africa (For map key and more information on the datasets used in the map see the land cover resources section)


Geology

This section provides a summary of the geology of South Africa. More detail can be found in the references listed at the bottom of this page. Many of these references can be accessed through the Africa Groundwater Literature Archive.

The geology map on this page shows a simplified version of the geology at a national scale (see the Geology resources page for more details). The map is available to download as a shapefile (.shp) for use in GIS packages.

Geological Environments
Key Formations Period Lithology Structure
Geological Environment 1
Name of formation1 Time period Description Structure
Geological Environment 2
Geological Environment 3


Hydrogeology

This section provides a summary of the hydrogeology of the main aquifers in South Africa. More information is available in the references listed at the bottom of this page. Many of these references can be accessed through the Africa Groundwater Literature Archive.

The hydrogeology map on this page shows a simplified version of the type and productivity of the main aquifers at a national scale (see the Aquifer properties resource page for more details). The map is available to download as a shapefile (.shp) for use in GIS packages.


Unconsolidated

Named Aquifers General Description Water quantity issues Water quality issues Recharge

Sedimentary - Intergranular Flow

Named Aquifers General Description Water quantity issues Water quality issues Recharge

Sedimentary - Intergranular & Fracture Flow

Named Aquifers General Description Water quantity issues Water quality issues Recharge

Sedimentary - Fracture Flow

Named Aquifers General Description Water quantity issues Water quality issues Recharge

Basement

Named Aquifers General Description Water quantity issues Water quality issues Recharge


Groundwater Status

Groundwater use and management

Groundwater use

Groundwater management

Groundwater monitoring

Transboundary aquifers===

For further information about transboundary aquifers, please see the Transboundary aquifers resources page

References

The following references provide more information on the geology and hydrogeology of South Africa.

These, and others, can be accessed through the Africa Groundwater Literature Archive EDIT THE LINK TO CORRECT COUNTRY!!

Geology: key references

Hydrogeology: key references

Return to the index pages

Africa Groundwater Atlas >> Hydrogeology by country >> Hydrogeology of COUNTRY