Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XXXIX-B7, 13-16, 2012
http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XXXIX-B7/13/2012/
doi:10.5194/isprsarchives-XXXIX-B7-13-2012
© Author(s) 2012. This work is distributed
under the Creative Commons Attribution 3.0 License.
 
27 Jul 2012
SENSITIVITY ANALYSIS IN THE RETRIEVAL OF TURBID COASTAL WATER BATHYMETRY USING WORLDVIEW-2 SATELLITE DATA
S. C. Liew, C. W. Chang, and L. K. Kwoh Centre for Remote Imaging, Sensing and Processing (CRISP), National University of Singapore, Blk. S17 Level 2, Lower Kent Ridge Road, Singapore 119076
Keywords: Bathymetry, turbid waters, ocean color Abstract. The recently launched Worldview-2 satellite provides high resolution (2-m multispectral) data in eight spectral bands in the visible to near-infrared region. The additional spectral bands provide an opportunity to test several algorithms for retrieving the water depth, bottom albedo and intrinsic optical properties of coastal sea water. In a previous work (Liew et al., 2011) we reported our attempts in retrieving water depth and bottom albedo using WorldView-2 data for the purpose of coastal habitat mapping. In this paper, we investigate the sensitivity and limitations in using WorldView-2 spectral bands for bathymetry retrieval in turbid coastal waters. For typical coastal waters with a dark seabed, the most sensitive band is the Green Band which is sensitive to water depth up to about 5.3 m. For coastal waters with a bright sandy seabed, the Red and Yellow Bands are the most sensitive, but the maximum sensitive depth is reduced to about 2.4 m.
Conference paper (PDF, 650 KB)


Citation: Liew, S. C., Chang, C. W., and Kwoh, L. K.: SENSITIVITY ANALYSIS IN THE RETRIEVAL OF TURBID COASTAL WATER BATHYMETRY USING WORLDVIEW-2 SATELLITE DATA, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XXXIX-B7, 13-16, doi:10.5194/isprsarchives-XXXIX-B7-13-2012, 2012.

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