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P. K. Champati Ray

Researcher at Indian Institute of Remote Sensing

Publications -  45
Citations -  750

P. K. Champati Ray is an academic researcher from Indian Institute of Remote Sensing. The author has contributed to research in topics: Landslide & Hyperspectral imaging. The author has an hindex of 13, co-authored 43 publications receiving 526 citations. Previous affiliations of P. K. Champati Ray include Indian Space Research Organisation.

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Fuzzy-based method for landslide hazard assessment in active seismic zone of Himalaya

TL;DR: In this paper, an attempt is made to derive information on causative parameters and preparation of landslide-susceptible map using fuzzy data integration in one of the seismically active region of Garhwal Himalaya that was recently devastated by a huge landslide.
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Kedarnath disaster 2013: causes and consequences using remote sensing inputs

TL;DR: In this article, the authors focused on analysis of landslides/debris flow movements and simulate landslides that occurred in Kedarnath event leading to derivation of important flow parameters to get closer to the root cause of the devastation.
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Lithological Discrimination and Mapping using ASTER SWIR Data in the Udaipur area of Rajasthan, India☆

TL;DR: In this article, the authors applied Principal Component Analysis (PCA), Minimum Noise Fraction (MNF) and Independent Component Analysis transformation on calibrated (orthorectified, cross-track illumination and atmospherically corrected) Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Shortwave Infrared (SWIR) data in the hostile terrain of Udaipur area.
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Seismic microzonation of Dehradun City using geophysical and geotechnical characteristics in the upper 30 m of soil column

TL;DR: In this paper, the authors evaluated seismic profiling using the multichannel analysis of surface waves in the city of Dehradun situated along the foothills of northwest Himalaya and found that seismic response spectra suggest that spectral acceleration values for two-story structures are three to eight times higher than peak ground acceleration at bedrock.
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Morphotectonic analysis and GNSS observations for assessment of relative tectonic activity in Alaknanda basin of Garhwal Himalaya, India

TL;DR: In this paper, the authors evaluated active tectonics by using high resolution digital elevation model (DEM) based on eight geomorphic indices (stream length gradient index, valley floor width-to-height ratio, hypsometric integral, drainage basin asymmetry, transverse topography symmetry factor, mountain front sinousity index, bifurcation ratio, and basin shape index) and seismicity in eight subbasins of Alaknanda basin.