groundwater extraction

The process, deliberate or inadvertent, of extracting ground water from a source at a rate so in excess of the replenishment that the ground water level declines persistently, threatening exhaustion of the supply or at least a decline of pumping levels to uneconomic depths. (Source: BJGEO)



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Displaying results 1 - 50 of 64 record(s) tagged with this keywordClick/tap on any title to see full details of the record
Crerar S, Fry RG, Slater PM, van Langenhove G, Wheeler D 1988. An unexpected factor affecting recharge from ephemeral river flows in SWA/Namibia. Estimation of Natural groundwater recharge 11-28
Simmonds ALE, Smalley TJ 2000. Kalahari aquifers in the Gam area of north-eastern Namibia. Communications of the Geological Survey of Namibia 12 469-474
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Kalahari aquifers in the Gam area of north_eastern Namibia.pdf 755.03 KB
Gledhill PA, Koosimile DI, McMullan SR, Ngwisanyi TH 1992. The use and misuse of geophysics for borehole siting in the Kalahari.
Benito G, Rohde R, Seely M, Kulls C, Dahan O, Enzel Y, Todd S, Botero B, Morin E, Grodek T, Roberts C 2010. Management of Alluvial Aquifers in Two Southern African Ephemeral Rivers: Implications for IWRM. Water Resources Management 24 (4) 641-667
Riddell ES, Kilian W, Versveld W, Kosoana A 2016. Groundwater stable isotope profile of the Etosha National Park, Namibia: short communication. Koedoe - African Protected Area Conservation and Science 58 (1) 1-7
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Groundwater stable isotope profile of the Etosha National Park.pdf 510.93 KB
Wanke H, Nakwafila A, Hamutoko JT, Lohe C, Neumbo F, Petrus I, David A, Beukes H, Masule N, Quinger M 2014. Hand dug wells in Namibia: An underestimated water source or a threat to human health?. Physics and Chemistry of the Earth, Parts A/B/C 76-78 104-113
Jennings CMH, Sellschop JPF, Verhagen BTh, Jones MT 1973. Environmental isotopes as an aid to investigation of ground water problems in Botswana. Botswana Notes and Records 5 179-190
Davies J, Robins NS, Farr J, Sorensen J, Beetlestone P, Cobbing JE 2013. Identifying transboundary aquifers in need of international resource management in the Southern African Development Community region. Hydrogeology Journal (21) 321–330
Wanke H, Dunkeloh A, Udluft P, Wanke A 2013. A distributed water balance model to estimate direct groundwater recharge: A case study from the Nhoma and Khaudum catchments, Namibia. International Science and Technology Journal of Namibia 2 (1) 11-32
Miller RMcG, Carr R, van der Merwe B, Symons G, Murray R, Amputu M 2018. Some geological and geophysical aspects of the 2016/2017 drilling campaign in the Windhoek aquifer. Communications of the Geological Survey of Namibia 19 8-19
Dill HG, Dohrmann R, Fenner J, Gersdorf U, Kaufhold S, Kringel R, Lindenmaier F, Ludwig R-R, McGMiller R, Nick A, Noell U, Walzer A 2012. Results of Analysis from Drill Holes on the Cubango Megafan. Groundwater for the North of Namibia Volume Ib, Kalahari Research Project.
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Results of Analysis from Drill Holes on the Cubango Megafan.pdf 2.2 MB
Lenz R, Grobbelaar H, Djama M 1995. Groundwaster Exploration in the Kuiseb Dune Area.
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German_Namibian groundwater exploration project_1995.pdf 599.78 KB
Geyh MA, Ploethner D 1994. Groundwater isotope study in the Omaruru River delta aguifer, central Namib desert, Namibia. Application of tracers in Arid Zone Hydrology 232 163-170
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Groundwater isotope study in the Omaruru River_1994.pdf 467.26 KB
Amoomo H, Elago P, Gaseb N, Hoveka V, Khairabes M, Mbangula E, Muharukua V, Mukuya S, Ndjeula H, Shinedema R, Zaaruka B 2000. SDP 8 - Determining a water reserve for the Kuiseb River.
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Determining a water reserve for the Kuiseb River.pdf 5.69 MB
Ministry of Agriculture Water and Rural Development (MAWRD) 2000. Strategic Water Resources Assessment: Theme report, Namibia water resources management review. 1-94
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MAWRD_Strategic Water Resources Assessment 2000.pdf 41.47 MB
MacDonald AM, Bonsor HC, Dochartaigh BEO, Taylor RG 2012. Quantitative maps of groundwater resources in Africa.
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Ground water resources of Africa 1748-9326_7_2_024009.pdf 1.06 MB
Research and Information Services of Namibia (RAISON) 2011. Groundwater of the Cuvelai-Etosha Basin.
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Cuvelai_poster_Groundwater_lowres.pdf 885.57 KB
Milzow C, Kgotlhang L, Bauer-Gottwein P, Meier P, Kinzelbach W 2009. Regional review: The hydrology of the Okavango Delta, Botswana - Processes, data and modelling. Hydrogeology Journal 17 1297-1328
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The hydrology of the Okavango Delta_2009.pdf 1.79 MB