干旱区生态环境知识资源中心(Arid): Spectral Analysis to Explore Gypsum Deposits and Its Association with Palaeochannels and Lithology Using PRISMA, Sentinel 2, and Dual-Polarimetric SAR Data in Bikaner, Rajasthan, Bharat

Arid

DOI	10.1007/s12524-024-01865-7
	Spectral Analysis to Explore Gypsum Deposits and Its Association with Palaeochannels and Lithology Using PRISMA, Sentinel 2, and Dual-Polarimetric SAR Data in Bikaner, Rajasthan, Bharat
	Biswas, Raja; Rathore, V. S.
通讯作者	Rathore, VS
来源期刊	JOURNAL OF THE INDIAN SOCIETY OF REMOTE SENSING
ISSN	0255-660X
EISSN	0974-3006
出版年	2024
英文摘要	Evaporites like calcrete and gypsum are found largely in arid regions in association with playas, palaeochannels, and different source rocks. Identification and precise mapping of these minerals is important for the economy. The present study aims to identify and map the spatial distribution of gypsum in the Bikaner district (an arid region in western Rajasthan, Bharat) based on the analysis of distinct spectral responses. Recently high spectral resolution and atmospherically corrected PRISMA data were used in this study. During the initial processing of the data, bad bands were spectrally subset after a detailed visual inspection. Also, a minimum noise fraction was performed to remove noise as well as to reduce the dimensionality of the data as per the analysis of eigenvalues. Then, the distribution map of gypsum was generated using the application of Spectral Angle Mapper after matching the spectra obtained from the spectral library and image. The results were validated through a detailed field investigation as well as from lab-based analysis like X-ray Diffraction. Moreover, we have delineated a course of a palaeochannel based on the interpretation of ALOS PALSAR, Sentinel-2A, and their fused images using two different fusion algorithms such as Gram Schmidt and Intensity Hue and Saturation. Our analysis revealed that the gypsum deposits are mostly situated along the identified palaeochannel and with lithology such as fine aeolian sand and calcrete (Kankar).
英文关键词	Gypsum PRISMA Hyperspectral image SAM Palaeochannel
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001214812400001
WOS关键词	PRINCIPAL-COMPONENT ANALYSIS ; LANDSAT TM DATA ; ASTER DATA ; ALTERATION MINERALS ; OPHIOLITE COMPLEX ; AREA ; EXTRACTION ; IMAGERY
WOS类目	Environmental Sciences ; Remote Sensing
WOS研究方向	Environmental Sciences & Ecology ; Remote Sensing
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404738
推荐引用方式 GB/T 7714	Biswas, Raja,Rathore, V. S.. Spectral Analysis to Explore Gypsum Deposits and Its Association with Palaeochannels and Lithology Using PRISMA, Sentinel 2, and Dual-Polarimetric SAR Data in Bikaner, Rajasthan, Bharat[J],2024.
APA	Biswas, Raja,&Rathore, V. S..(2024).Spectral Analysis to Explore Gypsum Deposits and Its Association with Palaeochannels and Lithology Using PRISMA, Sentinel 2, and Dual-Polarimetric SAR Data in Bikaner, Rajasthan, Bharat.JOURNAL OF THE INDIAN SOCIETY OF REMOTE SENSING.
MLA	Biswas, Raja,et al."Spectral Analysis to Explore Gypsum Deposits and Its Association with Palaeochannels and Lithology Using PRISMA, Sentinel 2, and Dual-Polarimetric SAR Data in Bikaner, Rajasthan, Bharat".JOURNAL OF THE INDIAN SOCIETY OF REMOTE SENSING (2024).