Insar Coherence and Polarimetric Parameters Based Characterization of Flooded Area – Case Study of a Natural World Heritage Site Kaziranga National Park

Flooding poses a significant threat to Kaziranga National Park, a UNESCO World Heritage Site and critical habitat for endangered species such as the Indian rhinoceros. This study demonstrates that Synthetic Aperture Radar (SAR) polarimetry and interferometry can effectively monitor flood extent using L-band dual-polarized data from ALOS PALSAR 2, offering advantages over optical sensors due to their all-weather operability. The research identifies H/A/Alpha decomposition as a robust method for characterizing flooded areas, with separability analysis revealing key parameters that distinguish water and non-water regions. Random forest classification applied to these parameters enables accurate flood mapping, while interferometric coherence images provide time-series insights into flood impacts. These findings highlight the potential of SAR-based techniques for real-time monitoring of flooding in ecologically sensitive heritage sites.

Dini Das, A. S., Kumar, S., Babu, A., & Thakur, P. K. (2018). INSAR COHERENCE AND POLARIMETRIC PARAMETERS BASED CHARACTERIZATION OF FLOODED AREA – CASE STUDY OF A NATURAL WORLD HERITAGE SITE KAZIRANGA NATIONAL PARK. ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, IV-5, 265–272. https://doi.org/10.5194/isprs-annals-iv-5-265-2018