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Groundwater recharge estimation for perched aquifers in the Ohangwena Region based on Soil water balance modeling and chloride mass balance (Bachelor Honors thesis)

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Title
Title Groundwater recharge estimation for perched aquifers in the Ohangwena Region based on Soil water balance modeling and chloride mass balance (Bachelor Honors thesis) ?
Author Anna Kaupuko David ?
Abstract Ground water recharge estimation into perched aquifers was determined using the chloride mass balance and the soil water balance model (MODBIL) in this thesis. A complete literature studies was done using the published and unpublished literature from various sources. The recharge estimation obtained was then compared to previous studies done in areas with similar amount of rainfall averages as the Ohangwena region. Villages in the Ohangwena region were sampled randomly for soil and water. The aquifers evaluated for recharge were the perched aquifers which are discontinuous aquifers located at shallow depths. Water samples were taken to the laboratory for hydrochemistry and the soil samples were collected for the eluates and grain size analysis. Recharge rates vary with intra annual and inter annual variation, the recharge into the perched aquifers range from 46.8 mm/a- 53.6 mm/a from the chloride mass balance method using simple average calculations and 39.4 mm/a- 59.8 mm/a when considering spatial variations. From the soil water balance model recharge rates obtained are relatively lower at 29.1 mm/a, from simple average calculations and 19 mm/a when spatial variations are considered. Recharge estimations into perched aquifers of the Ohangwena was done to give clearance on the amount of water available for the inhabitants of the area and know how much water is usable. ?
Dataset
Document Reference Date Type publication ?
Date 2013-12-01 ?
Language English ?
Online Linkage ?
Associated project SASSCAL (Phase 1) ?
Subproject 007 Improving knowledge and understanding of groundwater flow, water quality and quantity variations, improve methodology of groundwater availability study: Cuvelai – Kunene ?
Dataset Classification
Type PDF ?
Category thesis ?
Geographic Location
Study site Cuvelai Etosha ?
Geographic Description Namibia ?
Metadata
Metadata Contact Person Wanke, Heike, Dr ?
Metadata Date Stamp 2018-07-19 ?
Identifier
Internal identifier sdp_doc_documents_6424 (Link)