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Proceedings Paper

Identification of coral reef feature using hyperspectral remote sensing
Author(s): P. C. Mohanty; Satej Panditrao; R. S. Mahendra; Shiva Kumar H.; T. Srinivasa Kumar
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Paper Abstract

Present study employs reef-up approach to map coral reef zones along the Sentinel Island of Andaman using high spectral resolution offered by hyper spectral imagery by Hyperion mission of NASA. This data consisting of 242 spectral bands, provide a unique ability to identify Coral substrate based on their spectral properties. We applied atmospheric correction with the help of Fast Line-of-sight Atmospheric Analysis of Hypercubes (FLAASH) module of ENVI software. This atmospherically corrected was used to extract Coral Reef Zones (CRZ) based on specific threshold limits after subtracting data of 782.95nm band from 579.45nm band of Hyperion imagery. Both of these bands were chosen due to their property of exhibiting maximum spectral contrast that determines threshold limits to distinguish a coral area from its non-coral counterpart. These CRZs were compared with the coral reef zones base map developed using LISS-III data by INCOIS, Hyderabad and SAC, Ahmadabad under CZS project. We observed that extracted CRZ area was 85.25 m2 and 110.1 m2 using LISS-III and Hyperion Data respectively. Despite the overestimation of CRZ by Hyperion data as compared to LISS-III, the spatial distribution of CRZ showed reasonable similarity in both.

Paper Details

Date Published: 30 April 2016
PDF: 11 pages
Proc. SPIE 9880, Multispectral, Hyperspectral, and Ultraspectral Remote Sensing Technology, Techniques and Applications VI, 98801B (30 April 2016); doi: 10.1117/12.2227991
Show Author Affiliations
P. C. Mohanty, Indian National Ctr. for Ocean Information Services (India)
Satej Panditrao, Indian National Ctr. for Ocean Information Services (India)
R. S. Mahendra, Indian National Ctr. for Ocean Information Services (India)
Shiva Kumar H., Indian National Ctr. for Ocean Information Services (India)
T. Srinivasa Kumar, Indian National Ctr. for Ocean Information Services (India)


Published in SPIE Proceedings Vol. 9880:
Multispectral, Hyperspectral, and Ultraspectral Remote Sensing Technology, Techniques and Applications VI
Allen M. Larar; Prakash Chauhan; Makoto Suzuki; Jianyu Wang, Editor(s)

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