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    Change detection studies of Sagar Island, India, using Indian Remote Sensing Satellite 1C linear imaging self-scan sensor III data

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    J_Coast._Res_23_1498.pdf (830.4Kb)
    Date
    2007
    Author
    DineshKumar, P.K.
    Gopinath, G.
    Laluraj, C.M.
    Seralathan, P.
    Mitra, D.
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    Abstract
    The coastal zone of Sagar Island, West Bengal, India, is subjected to various cyclic and random processes that continuously modify the region. The shoreline and land-use/land cover changes have been studied using Indian Remote Sensing Satellite IC (IRS IC) linear imaging self-scan sensor (LISS) III satellite data from 1998 and 1999. A comparison between a topomap of 1967 and satellite data of 1999 established that during these years about 29.8 km of coastline was eroded, whereas the accretion is only 6.03 km sup(2). A comparison of satellite data from 1998 and 1999 showed that the island had undergone severe erosion of about 3.26 km sup(2), while the accretion was just about 0.08 km sup(2). Change detection studies based on land-use patterns of the region revealed that the areal extent of mangrove vegetation of the island during 1998 and 1999 was 2.1 km sup(2) and 1.3 km sup(2), respectively. The areal extent of agricultural fields during these periods was 130.4 km sup(2) and 118.6 km sup(2), respectively. These results can be used to develop an index for temporal land-use changes in the region as an aid to quantify the extent and nature of the development change and to understand the surrounding environment, which in turn may help the planning agencies to develop sound and sustainable land-use practices.
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    http://drs.nio.org/drs/handle/2264/777
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