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Proceedings Paper

Laboratory-based, field-based, and satellite-borne spectroscopy for lithological discrimination
Author(s): Rushanka Amrutkar; Khushboo Parakh; Bijal Chudasama; Sanchari Thakur; Malcolm Aranha; Alok Porwal
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Paper Abstract

Spectroscopic analysis is carried out for lithological discrimination in a study area in the Pali and Ajmer districts of Rajasthan, western India using laboratory-based, field-based and space-borne data. We first explored the feasibility of the Landsat-8 (Operational Land Imager (OLI), Thermal Infrared Sensor (TIRS)) and Advanced Space-borne Thermal Emission and Reflection Radiometer (ASTER) imagery for lithological mapping. Laboratory spectra of the samples of rocks exposed in the area were collected using FieldSpec3 spectroradiometer in the VNIR-SWIR region and resampled to the LANDSAT 8 and ASTER spectral bands. The spectral angle mapper (SAM) algorithm was used to map the lithologies using the resampled laboratory spectra as references. The resulting map was validated based on field geological mapping. Fourier Transform Infra-Red (FTIR) spectroscopy of selected rock samples was carried out to correlate spectral absorption features in the TIR-IR regions with the vibrational energy.

Paper Details

Date Published: 30 April 2016
PDF: 8 pages
Proc. SPIE 9880, Multispectral, Hyperspectral, and Ultraspectral Remote Sensing Technology, Techniques and Applications VI, 98801P (30 April 2016); doi: 10.1117/12.2222764
Show Author Affiliations
Rushanka Amrutkar, Indian Institute of Technology Bombay (India)
Khushboo Parakh, Indian Institute of Technology Bombay (India)
Bijal Chudasama, Indian Institute of Technology Bombay (India)
Sanchari Thakur, Indian Institute of Technology Bombay (India)
Malcolm Aranha, Indian Institute of Technology Bombay (India)
Alok Porwal, Indian Institute of Technology Bombay (India)
Univ. of Western Australia (Australia)


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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