Outputs (25)

Reconstructing rainfall using dryland dunes: Assessing the suitability of the southern Kalahari for unsaturated zone hydrostratigraphies (2022)
Journal Article
Stone, A., Zeng, Y., Yu, L., van der Ploeg, M., & Wanke, H. (2022). Reconstructing rainfall using dryland dunes: Assessing the suitability of the southern Kalahari for unsaturated zone hydrostratigraphies. Frontiers in Earth Science, 10, -. https://doi.org/10.3389/feart.2022.1034671

Time-series of dryland rainfall over 100–1000s of years are scarce but are needed to underpin improved predictions under future climate change. Dryland sand dunes are established Quaternary geomorphic archives, which also contain pore moisture as par... Read More about Reconstructing rainfall using dryland dunes: Assessing the suitability of the southern Kalahari for unsaturated zone hydrostratigraphies.

GIS-based water budget framework for assessing regional scale spatio-temporal variation and the impact of climate change on groundwater recharge over the past 100 years (2022)
Presentation / Conference
Boumaiza, L., Walter, J., Chesnaux, R., Lambert, M., Kumar Jha, M., Wanke, H., …Stumpp, C. (2022, May). GIS-based water budget framework for assessing regional scale spatio-temporal variation and the impact of climate change on groundwater recharge over the past 100 years. Presented at The Joint AGC/AMC/IAH-CNC Conference, Halifax

Knowledge of groundwater recharge (GWR) and its distribution are necessary for sustainable groundwater resources management. However, quantifying GWR remains particularly challenging as this parameter cannot be measured directly. At the regional scal... Read More about GIS-based water budget framework for assessing regional scale spatio-temporal variation and the impact of climate change on groundwater recharge over the past 100 years.

Toward the sustainable use of groundwater springs: a case study from Namibia (2022)
Journal Article
Soetaert, F., Wanke, H., Dupuy, A., Lusuekikio, V., Gaucher, E. C., Bordmann, V., …Franceschi, M. (2022). Toward the sustainable use of groundwater springs: a case study from Namibia. Sustainability, 14(7), Article 3995. https://doi.org/10.3390/su14073995

The water supply in drylands mainly relies on groundwater, making it a crucial resource. Springs in southern Africa are often underutilized, and are neither protected nor monitored. Thus, the aim of this study was to evaluate their quality in a sampl... Read More about Toward the sustainable use of groundwater springs: a case study from Namibia.

Groundwater recharge over the past 100 years: Regional spatiotemporal assessment and climate change impact over the Saguenay-Lac-Saint-Jean region, Canada (2022)
Journal Article
Boumaiza, L., Walter, J., Chesnaux, R., Lambert, M., Jha, M. K., Wanke, H., …Stumpp, C. (2022). Groundwater recharge over the past 100 years: Regional spatiotemporal assessment and climate change impact over the Saguenay-Lac-Saint-Jean region, Canada. Hydrological Processes, 36(3), Article e14526. https://doi.org/10.1002/hyp.14526

Proper knowledge of potential groundwater recharge (PGR) and its spatiotemporal distribution are essential for sustainable groundwater management, especially within the context of climate change. Here, a robust GIS-based water budget framework was de... Read More about Groundwater recharge over the past 100 years: Regional spatiotemporal assessment and climate change impact over the Saguenay-Lac-Saint-Jean region, Canada.

Challenges to implementing environmental-DNA monitoring in Namibia (2022)
Journal Article
Perry, I., Jâms, I. B., Casas-Mulet, R., Hamutoko, J., Marchbank, A., Lendelvo, S., …Kille, P. (2022). Challenges to implementing environmental-DNA monitoring in Namibia. Frontiers in Environmental Science, 9, Article 773991. https://doi.org/10.3389/fenvs.2021.773991

By identifying fragments of DNA in the environment, eDNA approaches present a promising tool for monitoring biodiversity in a cost-effective way. This is particularly pertinent for countries where traditional morphological monitoring has been sparse.... Read More about Challenges to implementing environmental-DNA monitoring in Namibia.

Rare earth elements in uranium ore deposits from Namibia: A nuclear forensics tool (2021)
Journal Article
Madzunya, D., Uushona, V., Mathuthu, M., & Heike, W. (2021). Rare earth elements in uranium ore deposits from Namibia: A nuclear forensics tool. Journal of Environmental Radioactivity, 237, Article 106668. https://doi.org/10.1016/j.jenvrad.2021.106668

Rare earth elements (REE) concentrations and pattern remains largely unchanged during the process of milling and can thus provide strong evidence of the origin of the material. The aim of this study was to determine the rare earth elements in uranium... Read More about Rare earth elements in uranium ore deposits from Namibia: A nuclear forensics tool.

Spatial distribution of soil salinity: A GIS-based assessment at the Hardap irrigation scheme, Namibia (2020)
Journal Article
Ambambi, H. N., Katjimune, H. V., Hipondoka, M., & Wanke, H. (2020). Spatial distribution of soil salinity: A GIS-based assessment at the Hardap irrigation scheme, Namibia. Namibian Journal for Research, Science and Technology, 2(1), 125-134

Salinization is a worldwide problem that affects the physical and chemical properties of soils. It is the most common and widely recognized form of land degradation, particularly in arid and semi-arid regions, where evaporation surpasses precipitatio... Read More about Spatial distribution of soil salinity: A GIS-based assessment at the Hardap irrigation scheme, Namibia.

Evaporation loss along the Calueque-Oshakati Canal in the Cuvelai-Etosha Basin (Northern Namibia): Evidence from stable isotopes and hydrochemistry (2020)
Journal Article
Koeniger, P., Hamutoko, J., Post, V. E. A., Beyer, M., Gaj, M., Himmelsbach, T., & Wanke, H. (2021). Evaporation loss along the Calueque-Oshakati Canal in the Cuvelai-Etosha Basin (Northern Namibia): Evidence from stable isotopes and hydrochemistry. Isotopes in Environmental and Health Studies, 57(1), 53-66. https://doi.org/10.1080/10256016.2020.1830082

© 2020 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. Since 1973, Kunene River water has been carried from the Calueque reservoir in Angola along a 160 km open concrete canal to the town of Oshakati in the centra... Read More about Evaporation loss along the Calueque-Oshakati Canal in the Cuvelai-Etosha Basin (Northern Namibia): Evidence from stable isotopes and hydrochemistry.

Estimation of groundwater recharge in savannah aquifers along a precipitation gradient using chloride mass balance method and environmental isotopes, Namibia (2020)
Journal Article
Uugulu, S., & Wanke, H. (2020). Estimation of groundwater recharge in savannah aquifers along a precipitation gradient using chloride mass balance method and environmental isotopes, Namibia. Physics and Chemistry of the Earth, 116, Article 102844. https://doi.org/10.1016/j.pce.2020.102844

© 2020 Elsevier Ltd The quantification of groundwater resources is essential especially in water scarce countries like Namibia. The chloride mass balance (CMB) method and isotopic composition were used in determining groundwater recharge along a prec... Read More about Estimation of groundwater recharge in savannah aquifers along a precipitation gradient using chloride mass balance method and environmental isotopes, Namibia.

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, Article 1411. 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.