Heike Wanke's Outputs (30)

Precipitation Origins and Key Drivers of Precipitation Isotope (18O, 2H, and 17O) Compositions Over Windhoek (2018)
Journal Article

©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

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

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

© 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

© 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

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

© 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

© 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

© 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

© 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.