Forest biophysical parameter estimation using space-borne bistatic PolInSAR measurements

Unmesh Khati; Gulab Singh; Shradha Mohanty

doi:10.1117/12.2222741

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11 May 2016 Forest biophysical parameter estimation using space-borne bistatic PolInSAR measurements

Unmesh Khati, Gulab Singh, Shradha Mohanty

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Proceedings Volume 9877, Land Surface and Cryosphere Remote Sensing III; 98771B (2016) https://doi.org/10.1117/12.2222741
Event: SPIE Asia-Pacific Remote Sensing, 2016, New Delhi, India

Abstract

Forest height is an important indicator of the health of the forest ecosystem and can be utilized for accurate estimation of important parameters such as forest above-ground biomass. PolInSAR techniques have been utilized for forest height estimation using airborne and space-borne platforms. However, temporal decorrelation severely limits the ability of space-borne PolInSAR observations for meaningful height inversion. With the launch of the TerraSAR-X/TanDEM-X platforms, acquisition of Polarimetric SAR data in bistatic mode, without the undesired effects of temporal decorrelation, is possible. Full-PolInSAR bistatic data is acquired over Indian tropical forests and the height inversion results are presented in this research article. The inverted height shows a good correlation with field measured height, with r = 0.8. The inversion shows over-estimation over low height forests, while providing an accurate estimation for tall forested areas.

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Unmesh Khati, Gulab Singh, and Shradha Mohanty "Forest biophysical parameter estimation using space-borne bistatic PolInSAR measurements", Proc. SPIE 9877, Land Surface and Cryosphere Remote Sensing III, 98771B (11 May 2016); https://doi.org/10.1117/12.2222741

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