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Mapping of hydrogeomorphological features in varaha river basin using IRS data
Authors:K S R Murthy  V Venkateswara Rao
Institution:(1) Department of Environmental Sciences, University of Kerala, Thiruvananthapuram, 695 581, Kerala, India;(2) CGIST, University of Kerala, Thiruvananthapuram, 695 581, Kerala, India;
Abstract:Hydrogeomorphological mapping in Varaha River Basin (VRB) was carried out to develop relationship between groundwater condition and geomophology of the area. The VRB is located in the north coastal region of Andhra Pradesh is characterised by variability in precipitation, temperature, vegetation, infiltration and run-off. Realising the significance of remote sensing in natural resource management and development, IRS 1A data was used in the study. It is inferred that various hydrogeomorphological units identified in the study area, are the outcome of different geomorphic processes that have been operating in the area and reveal which close relationship between groundwater condition and geology and geomorphol-ogy of the area. Areas covered by buried channels have shallow aquifers of good quality wa-ter with excellent yield. Lineaments and fractures may prove to be potential zones for ground-water development.
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