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1 Jul 19, 2017
2D AND 3D IMAGE FOR SYNTHETIC APERTURE RADAR

This paper presents a unique way of reconstructing 2D and 3D SAR image. The current SAR imaging algorithms is modeled as if the target of interest consists of collection of radiating discrete set of points known as point source model. This model is good enough as long the orientation of the target is not that important. But in this paper we employed a special technique known as dipole model which captures the orientation of the target by assuming the target consists of a collection of infinitesimally small dipoles. The orientation of each dipole is accounted in a dyadic contrast function. The image of the target is reconstructed by acquiring the reflectivity function from the 2D and the 3D simulated data....

Authors: Dr. Ali Nassib.

2 Jul 19, 2017
ASSESSMENT OF LAND USE/ LAND COVER CHANGES AND SEA LEVEL RISE IN PARTS OF SOUTHERN TAMIL NADU, INDIA.

Copious population growth and anthropogenic activities on earth is changing the natural environment extremely. Hence, an attempt has been made in this paper to determine and identify changes in land-use/land-cover changes and tidal Inundation has been carried out using Remote Sensing (RS) and Geographical Information System (GIS). To distinguish the land-use/land-cover changes and tidal inundation to prepare Geomorphology, drainage, Lithology, soil and contour maps, Satellite Data of Landsat ETM+[1999], IRS-P6-LISS-3[2007], OLI [2014], SRTM data has been used. An attempt has been made to prepared LU/LC maps from remotely sensed data (Land sat ETM+ [1999], IRS-P6- LISS-3[2007], OLI [2014]). Change detection techniques to determine the changes in different types of land-use/landcover features. The results exposed that totally 18 features were identified. Obviously this entire study from the year of 1999 to 2014 has find out settlement (20.69 sq.km) and salt pan (10.61 sq.km) were increased and land without scrub (- 13.08 sq.km), sandy area (-6.57sq.km) were decrease. In addition to that, the tidal inundation of Geomorphic landforms like 5.13, 9.66, 16.74, 23.63 and 32.11 in sq.km , In Land-use/Land-cover features the affected area are 5.17, 9.75, 17.28, 24.11 and 32.02 in sq.km from 1 to 5 meters range. From the study, the mitigation measures (engineering measures) and Coastal Zone Management practices that can be taken to protect human life and property from sea level rise are suggested....

Authors: A. Balukkarasu, B. Santhosh kumar, R. Prabhakaran, S. Kumaravel.

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