Abstract

The focus of this paper is to comparatively evaluate the performance of ASTER and Hyperion data for target detection of hydrothermal alteration zones associated with geothermal (GT) springs in an unexplored savannah region. The study employed the partial subpixel unmixing Mixture Tuned Match Filtering algorithm for spectral information extraction using the multispectral and hyperspectral satellite data. In both cases, image endmember spectra specifically for kaolinite, alunite, and illite and calcite zones were selected and extracted by using the Analytical Imaging and Geophysics (AIG)-developed processing methods. The results show that the Hyperion, despite its distortions, can effectively discriminate associated alteration zones better than ASTER. Consequently, Hyperspectral data and analysis are thus recommended for use in similar unexplored regions for GT resource detection and monitoring.

Details

Title
MULTISPECTRAL AND HYPERSPECTRAL SATELLITE DATA FOR ALTERATION MAPPING USING PARTIAL-SUBPIXEL ALGORITHM IN AN UNEXPLORED REGION
Author
Abubakar, A J 1 ; Hashim, M 2   VIAFID ORCID Logo  ; Pour, A B 3 ; Shehu, K 4 

1  Department of Geography, Faculty of Science, Kaduna State University P. M. B. 2339, Kaduna, Nigeria; Department of Geography, Faculty of Science, Kaduna State University P. M. B. 2339, Kaduna, Nigeria 
2  Geoscience and Digital Earth Centre (INSTeG), Research Institute for Sustainable Environment (RISE), Universiti Teknologi Malaysia (UTM), Malaysia; Geoscience and Digital Earth Centre (INSTeG), Research Institute for Sustainable Environment (RISE), Universiti Teknologi Malaysia (UTM), Malaysia 
3  Korea Polar Research Institute (KOPRI), Songdomirae-ro, Yeonsu-gu, Incheon 21990, Republic of Korea; Korea Polar Research Institute (KOPRI), Songdomirae-ro, Yeonsu-gu, Incheon 21990, Republic of Korea 
4  Department of Environmental Sciences, Faculty of science, Federal University Dutse, Jigawa State, Nigeria; Department of Environmental Sciences, Faculty of science, Federal University Dutse, Jigawa State, Nigeria 
Pages
35-38
Publication year
2019
Publication date
2019
Publisher
Copernicus GmbH
ISSN
16821750
e-ISSN
21949034
Source type
Conference Paper
Language of publication
English
DOI
https://doi.org/10.5194/isprs-archives-XLII-4-W16-35-2019
ProQuest document ID
2585370549
Copyright
© 2019. This work is published under https://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.