Abstract
Deltaic island systems are becoming vulnerable with frequent embankment failures, beach erosion and submergence, and flooding throughout the world. In addition to this, the alarming growth of population in this ecologically sensitive and fragile niche has posed a major threat for its very existence. The impact of sea level rise in combination with complex hydrodynamic conditions has caused severe coastal erosion in the islands of the Indian Sundarban Delta (ISD). The Sagar, Ghoramara, and Mousani Island, situated at the western part of the Indian Sundarban Delta, are the focus of this study. This study aims at the assessment of morphological changes due to the erosion and consequential land use/land cover changes. The study area is a densely populated region with 2 % growth per annum. The immediate consequences of population growth could be the decrease of agricultural land through expansion of the settlement area. Morphological changes along with high population growth create pressure on resources by lowering per capita land availability. Though having a similar environmental set up, all the three islands that are being studied have different change pattern depending on the morphological and anthropogenic activities. This study tries to compare the changes among these three islands. Assessment of the land use pattern change and the estimation of erosion have been done with the application of Remote Sensing. Temporal analysis using satellite images of 1990, 1995, 2000, 2005, 2010, and 2015 unfold the variation in the geomorphic and the land use type and help to formulate the strategic planning for the sustenance of the island.
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Hajra, R., Ghosh, A., Ghosh, T. (2017). Comparative Assessment of Morphological and Landuse/Landcover Change Pattern of Sagar, Ghoramara, and Mousani Island of Indian Sundarban Delta Through Remote Sensing. In: Hazra, S., Mukhopadhyay, A., Ghosh, A., Mitra, D., Dadhwal, V. (eds) Environment and Earth Observation. Springer Remote Sensing/Photogrammetry. Springer, Cham. https://doi.org/10.1007/978-3-319-46010-9_11
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