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Partitioning of water between differently sized shrubs and potential groundwater recharge in a semiarid savanna in Namibia (2019)
Journal Article
Geißler, K., Heblack, J., Uugulu, S., Wanke, H., & Blaum, N. (2019). Partitioning of water between differently sized shrubs and potential groundwater recharge in a semiarid savanna in Namibia. Frontiers in Plant Science, 10, https://doi.org/10.3389/fpls.2019.01411

Introduction: Many semiarid regions around the world are presently experiencing significant changes in both climatic conditions and vegetation. This includes a disturbed coexistence between grasses and bushes also known as bush encroachment, and alte... Read More about Partitioning of water between differently sized shrubs and potential groundwater recharge in a semiarid savanna in Namibia.

Observed controls on resilience of groundwater to climate variability in sub-Saharan Africa (2019)
Journal Article
Cuthbert, M. O., Taylor, R. G., Favreau, G., Todd, M. C., Shamsudduha, M., Villholth, K. G., …Kukuric, N. (2019). Observed controls on resilience of groundwater to climate variability in sub-Saharan Africa. Nature, 572(7768), 230-234. https://doi.org/10.1038/s41586-019-1441-7

Groundwater in sub-Saharan Africa supports livelihoods and poverty alleviation maintains vital ecosystems, and strongly influences terrestrial water and energy budgets. Yet the hydrological processes that govern groundwater recharge and sustainabilit... Read More about Observed controls on resilience of groundwater to climate variability in sub-Saharan Africa.

The role of local perched aquifers in regional groundwater recharge in semi-arid environments: Evidence from the Cuvelai-Etosha Basin, Namibia (2019)
Journal Article
Hamutoko, J. T., Post, V. E. A., Wanke, H., Beyer, M., Houben, G., & Mapani, B. (2019). The role of local perched aquifers in regional groundwater recharge in semi-arid environments: Evidence from the Cuvelai-Etosha Basin, Namibia. Hydrogeology Journal, 27(7), 2399-2413. https://doi.org/10.1007/s10040-019-02008-w

The influence of local perched aquifers on groundwater recharge in semi-arid areas at a regional scale remains inadequately studied, especially in southern Africa where data scarcity limits the understanding of recharge and groundwater flow processes... Read More about The role of local perched aquifers in regional groundwater recharge in semi-arid environments: Evidence from the Cuvelai-Etosha Basin, Namibia.

Metagenomics reveals seasonality of human pathogenic bacteria from hand-dug well water in the Cuvelai Etosha Basin of Namibia (2019)
Journal Article
McBenedict, B., Hauwanga, W., Wanke, H., Chimwamurombe, P., & Hang’ombe, B. (2019). Metagenomics reveals seasonality of human pathogenic bacteria from hand-dug well water in the Cuvelai Etosha Basin of Namibia. Journal of Pure and Applied Microbiology, 13(2), 865-877. https://doi.org/10.22207/JPAM.13.2.22

Namibia is a large country with a population slightly above 2 million of which 73% live in rural areas. It is the driest country in sub-Saharan Africa with unpredictable rainfall patterns which occur between October and May. The Cuvelai Etosha Basin... Read More about Metagenomics reveals seasonality of human pathogenic bacteria from hand-dug well water in the Cuvelai Etosha Basin of Namibia.

Examination of deep root water uptake using anomalies of soil water stable isotopes, depth-controlled isotopic labeling and mixing models (2018)
Journal Article
Beyer, M., Hamutoko, J. T., Wanke, H., Gaj, M., & Koeniger, P. (2018). Examination of deep root water uptake using anomalies of soil water stable isotopes, depth-controlled isotopic labeling and mixing models. Journal of Hydrology, 566, 122-136. https://doi.org/10.1016/j.jhydrol.2018.08.060

© 2018 Elsevier B.V. Knowledge on the water uptake depths of vegetation is crucial for understanding water transport processes of the soil-vegetation atmosphere continuum and relevant for many applications (e.g. the estimation of groundwater recharge... Read More about Examination of deep root water uptake using anomalies of soil water stable isotopes, depth-controlled isotopic labeling and mixing models.

Stable isotope signatures of meteoric water in the Cuvelai-Etosha Basin, Namibia: Seasonal characteristics, trends and relations to southern African patterns (2018)
Journal Article
Wanke, H., Gaj, M., Beyer, M., Koeniger, P., & Hamutoko, J. T. (2018). Stable isotope signatures of meteoric water in the Cuvelai-Etosha Basin, Namibia: Seasonal characteristics, trends and relations to southern African patterns. Isotopes in Environmental and Health Studies, 54(6), 588-607. https://doi.org/10.1080/10256016.2018.1505724

© 2018, © 2018 Informa UK Limited, trading as Taylor & Francis Group. The study area is the Namibian part of the Cuvelai-Etosha Basin (CEB), located in central northern Namibia. The CEB is home to 40% of Namibia’s population, and most of the peopl... Read More about Stable isotope signatures of meteoric water in the Cuvelai-Etosha Basin, Namibia: Seasonal characteristics, trends and relations to southern African patterns.

Precipitation Origins and Key Drivers of Precipitation Isotope (18O, 2H, and 17O) Compositions Over Windhoek (2018)
Journal Article
Kaseke, K. F., Wang, L., Wanke, H., Tian, C., Lanning, M., & Jiao, W. (2018). Precipitation Origins and Key Drivers of Precipitation Isotope (18O, 2H, and 17O) Compositions Over Windhoek. Journal of Geophysical Research: Atmospheres, 123(14), 7311-7330. https://doi.org/10.1029/2018JD028470

©2018. American Geophysical Union. All Rights Reserved. Southern African climate is characterized by large precipitation variability, and model precipitation estimates can vary by 70% during summer. This may be partly attributed to underestimation an... Read More about Precipitation Origins and Key Drivers of Precipitation Isotope (18O, 2H, and 17O) Compositions Over Windhoek.

Detection of Escherichia coli and harmful enteric bacterial pathogens in domestic hand-dug wells in the Cuvelai Etosha Basin of Namibia (2018)
Journal Article
McBenedict, B., Wanke, H., Hang’ombe, B., & Chimwamurombe, P. (2018). Detection of Escherichia coli and harmful enteric bacterial pathogens in domestic hand-dug wells in the Cuvelai Etosha Basin of Namibia. Advances in Microbiology, 8(4), 297-313. https://doi.org/10.4236/aim.2018.84020

The Cuvelai Etosha Basin of Namibia is characterised by complex aquifer systems with multi-layered aquifers and various water qualities. Some parts of the basin have been covered with a pipeline system that supplies purified surface water from the Ku... Read More about Detection of Escherichia coli and harmful enteric bacterial pathogens in domestic hand-dug wells in the Cuvelai Etosha Basin of Namibia.

The long road to sustainability: integrated water quality and quantity assessments in the Cuvelai-Etosha Basin, Namibia (2018)
Book Chapter
Wanke, H., Beyer, M., Hipondoka, M., Hamutoko, J., Gaj, M., Koeniger, P., & Himmelsbach, T. (2018). The long road to sustainability: integrated water quality and quantity assessments in the Cuvelai-Etosha Basin, Namibia. In R. Revermann, K. Krewenka, U. Schmiedel, J. Olwoch, J. Helmschrot, & N. Jürgens (Eds.), Climate change and adaptive land management in southern Africa – assessments, changes, challenges, and solutionsKlaus Hess Publishers

Many arid and semi-arid regions of Southern Africa experience pressure on water resources as a result of limited rainfall, droughts, high population growth, and poor infrastructure. To satisfy domestic, agricultural, and livestock demands, multiple... Read More about The long road to sustainability: integrated water quality and quantity assessments in the Cuvelai-Etosha Basin, Namibia.

Groundwater quality and associated hydrogeochemical processes in Northwest Namibia (2017)
Journal Article
Li, Z., Li, L., Wang, G., Wang, X., Wan, L., Shi, Z., …Uahengo, C. I. (2018). Groundwater quality and associated hydrogeochemical processes in Northwest Namibia. Journal of Geochemical Exploration, 186, 202-214. https://doi.org/10.1016/j.gexplo.2017.12.015

© 2017 Elsevier B.V. Namibia is one of the driest countries in southern Africa. Groundwater has played an important role in the development of Namibia. However, like those at some other places in Namibia, groundwater is unsuitable for drinking in par... Read More about Groundwater quality and associated hydrogeochemical processes in Northwest Namibia.

Spatial analysis of fluoride concentrations in drinking water and population at risk in Namibia (2017)
Journal Article
Hipondoka, M. H., Wanke, H., Ueland, J. S., & Hipondoka, M. (2017). Spatial analysis of fluoride concentrations in drinking water and population at risk in Namibia. Water S.A, 43(3), 413-422. https://doi.org/10.4314/wsa.v43i3.06

© 2017, South African Water Research Commission. All rights reserved. Namibia, the driest country in sub-Saharan Africa, is largely reliant on groundwater for its potable water demand and groundwater is a major source of naturally-occurring fluoride.... Read More about Spatial analysis of fluoride concentrations in drinking water and population at risk in Namibia.

An analysis of precipitation isotope distributions across Namibia using historical data (2016)
Journal Article
Kaseke, K., Wang, L., Wanke, H., Turewicz, V., & Koeniger, P. (2016). An analysis of precipitation isotope distributions across Namibia using historical data. PLoS ONE, 11(5), e0154598. https://doi.org/10.1371/+journal.pone.0154598

Global precipitation isoscapes based on the Global Network for Isotopes in Precipitation (GNIP) network are an important toolset that aid our understanding of global hydrologic cycles. Although the GNIP database is instrumental in developing global... Read More about An analysis of precipitation isotope distributions across Namibia using historical data.

In situ unsaturated zone water stable isotope (2H and 18O) measurements in semi-arid environments: A soil water balance (2016)
Journal Article
Gaj, M., Beyer, M., Koeniger, P., Wanke, H., Hamutoko, J., & Himmelsbach, T. (2016). In situ unsaturated zone water stable isotope (2H and 18O) measurements in semi-arid environments: A soil water balance. Hydrology and Earth System Sciences, 20(2), 715-731. https://doi.org/10.5194/hess-20-715-2016

© 2016 Author(s). Stable isotopes (deuterium, 2H, and oxygen-18, 18O) of soil water were measured in the field using a liquid water isotope analyzer (tunable off-axis integrated cavity output spectroscope, OA-ICOS, LGR) and commercially available soi... Read More about In situ unsaturated zone water stable isotope (2H and 18O) measurements in semi-arid environments: A soil water balance.

Estimation of groundwater vulnerability to pollution based on DRASTIC in the Niipele sub-basin of the Cuvelai Etosha Basin, Namibia (2016)
Journal Article
Hamutoko, J. T., Wanke, H., & Voigt, H. J. (2016). Estimation of groundwater vulnerability to pollution based on DRASTIC in the Niipele sub-basin of the Cuvelai Etosha Basin, Namibia. Physics and Chemistry of the Earth, 93, 46-54. https://doi.org/10.1016/j.pce.2015.12.007

© 2016 Elsevier Ltd Surface water is a scarce resource in Namibia with about sixty percent of Namibia's population dependent on groundwater for drinking purposes. With increasing population, the country faces water challenges and thus groundwater res... Read More about Estimation of groundwater vulnerability to pollution based on DRASTIC in the Niipele sub-basin of the Cuvelai Etosha Basin, Namibia.

A deuterium-based labeling technique for the investigation of rooting depths, water uptake dynamics and unsaturated zone water transport in semiarid environments (2015)
Journal Article
Beyer, M., Koeniger, P., Gaj, M., Hamutoko, J. T., Wanke, H., & Himmelsbach, T. (2016). A deuterium-based labeling technique for the investigation of rooting depths, water uptake dynamics and unsaturated zone water transport in semiarid environments. Journal of Hydrology, 533, 627-643. https://doi.org/10.1016/j.jhydrol.2015.12.037

© 2015 Elsevier B.V. Non- or minimum-invasive methods for the quantification of rooting depths of plants are rare, in particular in (semi-)arid regions; yet, this information is crucial for the parameterization of SVAT (Soil-Vegetation-Atmosphere Tra... Read More about A deuterium-based labeling technique for the investigation of rooting depths, water uptake dynamics and unsaturated zone water transport in semiarid environments.

Geochemistry and fluoride levels of geothermal springs in Namibia (2014)
Journal Article
Sracek, O., Wanke, H., Ndakunda, N. N., Mihaljevič, M., & Buzek, F. (2015). Geochemistry and fluoride levels of geothermal springs in Namibia. Journal of Geochemical Exploration, 148, 96-104. https://doi.org/10.1016/j.gexplo.2014.08.012

© 2014 Elsevier B.V. A survey of groundwater from six geothermal springs in Namibia showed high concentrations of dissolved fluoride, with values up to 18.9mg/l. All values are higher than both the WHO limit and the Namibian guideline. High concentra... Read More about Geochemistry and fluoride levels of geothermal springs in Namibia.