DIGITAL ELEVATION AND LAND COVER INUNDATION ASSESSMENT OF DHAMRA ESTUARY, EAST COAST OF INDIAManish Kumar, C. R. Panda, N.C. Mohanta, A. A. Karim and S. Mohapatra
DEM and land cover was prepared using high spatial resolution (2.5 m) stereo pair CARTOSAT-1 image and LISS III image respectively. ERDAS-LPS 9.3 software along with Arc Map 10.0 was utilized for generating DEM which was overlaid on land cover for inundation assessment. Land cover of the estuary was mainly occupied by agriculture (57.2 %), forest (24.4 %) and water bodies (9.3 %). Based on elevation, estuary land cover was classified into five sensitive zone viz. very high (up to 0.5 m) with 3450.7 hectare (5 %), high (0.5 -1.5 m) with 6399.3 hectare (9.2%), medium (1.5 - 2.5 m) with 16326.5 hectare (23.5 %), low (2.5 3.5 m) with 26450.8 hectare (38.1%) and very low (> 3.5 m) with 16780.6 hectare (24.2%) sensitive class. In very high sensitive zone, forest occupied the highest land cover (1603.1 hectare) followed by water-bodies, wasteland, wetland, built-up and agriculture area. Majority of the agricultural area was covered under low and very low sensitive class. Inundation assessment reflects about the vulnerability of forest and other land cover towards potential sea level rise. The findings will help in planning adaptation measures to minimize the risk due to SLR.
Enter your contact information below to receive full paper.