Hydrogeology of Equatorial Guinea: Difference between revisions
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Equatorial Guinea consists of two parts, an island and a mainland region. The island region consists of the islands of Bioko in the Gulf of Guinea, and Annobón, a small volcanic island south of the equator. The capital Malabo is on Bioko Island. The mainland region is Río Muni, where Bata, the largest city, and Oyala, the country's planned future capital, are located. Rio Muni also includes several small offshore islands, such as Corisco, Elobey Grande, and Elobey Chico. | Equatorial Guinea consists of two parts, an island and a mainland region. The island region consists of the islands of Bioko in the Gulf of Guinea, and Annobón, a small volcanic island south of the equator. The capital Malabo is on Bioko Island. The mainland region is Río Muni, where Bata, the largest city, and Oyala, the country's planned future capital, are located. Rio Muni also includes several small offshore islands, such as Corisco, Elobey Grande, and Elobey Chico. | ||
[[File:Equatorial Guinea_Political.png | right | frame | Equatorial Guinea. For more information on the datasets | [[File:Equatorial Guinea_Political.png | right | frame | Equatorial Guinea. Map developed from USGS GTOPOPO30; GADM global administrative areas; and UN Revision of World Urbanization Prospects. For more information on the map development and datasets see the [[Geography | geography resource page]]]] | ||
===General=== | ===General=== | ||
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===Climate=== | ===Climate=== | ||
These maps and graphs were developed from the CRU TS 3.21 dataset produced by the Climatic Research Unit at the University of East Anglia, UK. For more information see the [[Climate | climate resource page]]. | |||
<gallery widths="375px" heights=365px mode=nolines> | <gallery widths="375px" heights=365px mode=nolines> | ||
File:Equatorial Guinea_ClimateZones.png |Koppen Geiger Climate Zones | File:Equatorial Guinea_ClimateZones.png |Koppen Geiger Climate Zones | ||
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[[File:Equatorial Guinea_pre_Monthly.png| 255x124px| Average monthly precipitation for Equatorial Guinea showing minimum and maximum (light blue), 25th and 75th percentile (blue), and median (dark blue) rainfall]] [[File:Equatorial Guinea_tmp_Monthly.png| 255x124px| Average monthly temperature for Equatorial Guinea showing minimum and maximum (orange), 25th and 75th percentile (red), and median (black) temperature]] [[File:Equatorial Guinea_pre_Qts.png | 255x124px | Quarterly precipitation over the period 1950-2012]] [[File:Equatorial Guinea_pre_Mts.png|255x124px | Monthly precipitation (blue) over the period 2000-2012 compared with the long term monthly average (red)]] | [[File:Equatorial Guinea_pre_Monthly.png| 255x124px| Average monthly precipitation for Equatorial Guinea showing minimum and maximum (light blue), 25th and 75th percentile (blue), and median (dark blue) rainfall]] [[File:Equatorial Guinea_tmp_Monthly.png| 255x124px| Average monthly temperature for Equatorial Guinea showing minimum and maximum (orange), 25th and 75th percentile (red), and median (black) temperature]] [[File:Equatorial Guinea_pre_Qts.png | 255x124px | Quarterly precipitation over the period 1950-2012]] [[File:Equatorial Guinea_pre_Mts.png|255x124px | Monthly precipitation (blue) over the period 2000-2012 compared with the long term monthly average (red)]] | ||
===Surface water=== | ===Surface water=== | ||
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| [[File:Equatorial Guinea_Hydrology.png | frame | Major surface water features of Equatorial Guinea. For more information on the datasets | | [[File:Equatorial Guinea_Hydrology.png | frame | Major surface water features of Equatorial Guinea. Map developed from World Wildlife Fund HydroSHEDS; Digital Chart of the World drainage; and FAO Inland Water Bodies. For more information on the map development and datasets see the [[Surface water | surface water resource page]]]] | ||
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| [[File:Equatorial Guinea_soil.png | frame | Soil Map of Equatorial Guinea. For more information on the map see the [[Soil | soil resource page]]]] | | [[File:Equatorial Guinea_soil.png | frame | Soil Map of Equatorial Guinea, from the European Commission Joint Research Centre: European Soil Portal. For more information on the map see the [[Soil | soil resource page]]]] | ||
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| [[File:EquatorialGuinea_LandCover.png | frame | Land Cover Map of Equatorial Guinea. For more information on the map see the [[Land cover | land cover resource page]]]] | | [[File:EquatorialGuinea_LandCover.png | frame | Land Cover Map of Equatorial Guinea, from the European Space Agency GlobCover 2.3, 2009. For more information on the map see the [[Land cover | land cover resource page]]]] | ||
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| [[File:Equatorial Guinea_Geology.png | center | thumb|500 px| Geology of Equatorial Guinea at 1:5million scale. For more information on | | [[File:Equatorial Guinea_Geology.png | center | thumb|500 px| Geology of Equatorial Guinea at 1:5million scale. Developed from USGS map (Persits et al. 2002). For more information on the map development and datasets see the [[Geology | geology resource page]]]] | ||
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Revision as of 13:25, 25 April 2016
Africa Groundwater Atlas >> Hydrogeology by country >> Hydrogeology of Equatorial Guinea
This page has limited information and needs to be updated. If you have more information on the hydrogeology of Equatorial Guinea , please get in touch!
Compilers
Dr Kirsty Upton and Brighid Ó Dochartaigh, British Geological Survey, UK
Please cite this page as: Upton & Ó Dochartaigh, 2016.
Bibliographic reference: Upton, K. & Ó Dochartaigh, B.É. 2016. Africa Groundwater Atlas: Hydrogeology of Equatorial Guinea. British Geological Survey. Accessed [date you accessed the information]. https://earthwise.bgs.ac.uk/index.php/Hydrogeology_of_Equatorial_Guinea
Terms and conditions
The Africa Groundwater Atlas is hosted by the British Geological Survey (BGS) and includes information from third party sources. Your use of information provided by this website is at your own risk. If reproducing diagrams that include third party information, please cite both the Africa Groundwater Atlas and the third party sources. Please see the Terms and Conditions for more information.
Geographical Setting
Equatorial Guinea consists of two parts, an island and a mainland region. The island region consists of the islands of Bioko in the Gulf of Guinea, and Annobón, a small volcanic island south of the equator. The capital Malabo is on Bioko Island. The mainland region is Río Muni, where Bata, the largest city, and Oyala, the country's planned future capital, are located. Rio Muni also includes several small offshore islands, such as Corisco, Elobey Grande, and Elobey Chico.
General
Estimated Population in 2013* | 757,014 |
Rural Population (% of total) (2013)* | 60.4% |
Total Surface Area* | 28,050 sq km |
Agricultural Land (% of total area) (2012)* | 10.1% |
Capital City | Malabo |
Region | Western Africa |
Border Countries | The mainland region is bordered by Cameroon and Gabon |
Annual Freshwater Withdrawal (2013)* | 17.4 Million cubic metres |
Annual Freshwater Withdrawal for Agriculture (2013)* | 5.7% |
Annual Freshwater Withdrawal for Domestic Use (2013)* | 79.3% |
Annual Freshwater Withdrawal for Industry (2013)* | 14.9% |
Rural Population with Access to Improved Water Source (2012)* | n/a |
Urban Population with Access to Improved Water Source (2012)* | n/a |
* Source: World Bank
Climate
These maps and graphs were developed from the CRU TS 3.21 dataset produced by the Climatic Research Unit at the University of East Anglia, UK. For more information see the climate resource page.
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Koppen Geiger Climate Zones
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Average Annual Precipitation
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Average Temperature
Surface water
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Soil
Land cover
Geology
The geology map shows a simplified version of the geology at a national scale. More information is available in the report UN (1988) (see References section, below).
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Hydrogeology
The hydrogeology map below shows a simplified version of the type and productivity of the main aquifers at a national scale (see the hydrogeology Map resource page for more details).
More information on the hydrogeology of Equatorial Guinea is available in the report United Nations (1988) (see References section, below).
Transboundary aquifers
For further information about transboundary aquifers, please see the Transboundary aquifers resources page.
References
References with more information on the geology and hydrogeology of Equatorial Guinea can be accessed through the Africa Groundwater Literature Archive.
United Nations. 1989. Groundwater in Eastern, Central and Southern Africa: Equatorial Guinea. United Nations Department of Technical Cooperation for Development.
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Africa Groundwater Atlas >> Hydrogeology by country >> Hydrogeology of Equatorial Guinea