Title: A rainwater harvesting information system for Chennai City, India.
Abstract: Increased rates of urbanization and industrialization reduce the availability of open surfaces for natural recharge of aquifers by rainwater in large cities. Artificial recharge of rainwater is a solution for improving the groundwater potential in order to maintain sustainable groundwater resources. This paper presents a study of Chennai City (India) which aims to identify rainwater harvesting strategies using GIS techniques and to create a Rain Water Harvesting Information System. The methodology and analysis include creation of a water related database, rainfall analysis of 31 years of monthly data for 17 rainfall stations (using Vertical Mapper 2.5 of the Map/Info GIS software) and groundwater level analysis of 30 years of monthly data from 26 control wells. The final output map is obtained from GIS overlay analysis, and can be used as a utility map for rainwater harvesting in Chennai. An interactive Rain Water Harvesting Information System (RWHIS), which can be used as a tool for identifying the specific rainwater harvesting strategies in a given locality by giving the latitude and longitude of the place is developed. Two case studies of rainwater harvesting system design and implementation for: (a) Anna University Campus, and (b) the Centre for Water Resources, which are part of the RWHIS, are also presented. This system can be extended to a Decision Support System to provide various options for rainwater harvesting strategies towards achieving sustainable water resources in urban environments.
Publication Year: 2005
Publication Date: 2005-01-01
Language: en
Type: article
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Cited By Count: 1
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