Estimating Water Table Elevations by Spatial Interpolation: A Case Study of Kamariny Division, Keiyo North District, Kenya

作者: Catherine Chebet

DOI:

关键词: Water resourcesNon-revenue waterWater tableWater resource managementEnvironmental scienceFarm waterWater scarcityWater conservationSurface waterWater cycle

摘要: AbstractWater scarcity is a serious issue in Keiyo District and Kenya general. Indeed has been classified as water-scarce country. The water crisis disrupting social economic activities throughout the As stipulated Vision 2030, developments anticipated will require more high quality supplies than at moment. To be able to achieve this, there need conserve sources find new ways of harvesting using rain underground water. 2030 for sanitation ensure that improved are available accessible all. surface resources study area meagre entire region principally dependent on groundwater its needs. therefore focused exploration ground Kamariny Division latest techniques Geographic Information Systems (GIS) particularly spatial interpolation. main aim was estimate table elevations Division. results assist local people estimating depth any point make right decisions terms choosing best site their wells also cost digging advance. Scholars general readers can adopt same methodology other areas Kenya.Keywords: water, interpolation, geographic information systems, table.(ProQuest: ... denotes formula omitted.)INTRODUCTIONKenya scarce country, defined by disproportionate ratio actual withdrawals compared with renewable resources. Kenya's annual fresh supply 647 cubic meters per capita (Water.org, n.d), level projected fall 235 2025 (a country categorized "water scarce" if less 1000 capita). According Ministry Water Resources Development, only about 50 percent rural population 75% urban have access clean A lack improper management existing result poor health instability daily life (USAID, 2007). One reasons cited shortage fact potential nationally abundant but under-exploited. It established total some 20.29 billion against demands 3.56 2010 (Millennium Alliance, n.d).The present. therefore, aims start order all (GOK, There two used consumption: (lakes, reservoirs, rivers or stream) groundwater. Groundwater purest form natural water; least contaminated very low turbidity due filtration (Mt Empire Community College, n.d). one most valuable resources, which supports human health, development ecological diversity.Ground an integral part hydrological cycle complex system circulates over whole planet. starts energy from sun evaporates oceans large cloud masses moved global wind and, when conditions right, precipitate rain, snow hail (Brassington, hydrologic equation simple expression relationship between this precipitation evaporation, infiltration stream flow:Precipitation = evaporation + flow (Caswell, 1987)When rains sky, it falls land collects streams rivers, eventually back into sea, where process again. …

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