Mapping and characterization of inland wetlands using remote sensing and GIS |
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Authors: | G Manju V M Chowdary Y K Srivastava S Selvamani A Jeyaram S Adiga |
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Institution: | (1) Department of Geology, Anna University Chennai, Chennai, 600 025, India;(2) Institute of Remote Sensing, Anna University Chennai, Chennai, 600 025, India |
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Abstract: | Sustainable management of wetland ecosystem is necessary as it serves the important functions such as food storage, water
quality maintenance and providing habitat for different species of wildlife. Hence, an inventory of wetlands in any given
area is a pre-requisite for their conservation and management. A study has been carried out to delineate the wetlands of east
Champaran district of Bihar, India, using IRS ID LISS III data. The data for the pre and post monsoon seasons have been analysed
and the wetlands have been qualitatively characterized based on the turbidity and aquatic vegetation status. The extent of
water logging problem in the study area was inferred from the seasonal variation of waterspread during both the seasons. The
three categories of wetlands (ponds/lakes, water logged areas and oxbow lakes) have been identified. From the analysis, it
has been observed that the inland wetlands constitute 2.7% of the study area, of which 1.8% is subjected to water logging.
Thus, this study highlights the usefulness of remotely sensed data for wetland mapping, seasonal monitoring and characterization. |
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