Analysis of Parabolic Dune Morphometry and Its Migration in Thar Desert Area, India, using High-Resolution Satellite Data and Temporal DEM

Thar Desert region is mainly comprised of sand dunes and sand sheets which are distributed in more than 80 per cent geographical area of western Rajasthan. Among the different types of sand dunes, nearly 50 per cent area of western Rajasthan is covered by parabolic dunes. However, morphodynamics of...

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Published inJournal of the Indian Society of Remote Sensing Vol. 47; no. 12; pp. 2097 - 2111
Main Authors Bhadra, B. K., Rehpade, Sushilkumar B., Meena, Hansraj, Srinivasa Rao, S.
Format Journal Article
LanguageEnglish
Published New Delhi Springer India 01.12.2019
Springer Nature B.V
Subjects
Correlation coefficient
Correlation coefficients
Deserts
Digital Elevation Models
Dunes
Earth and Environmental Science
Earth Sciences
High resolution
Interpolated mapping
Parameters
Remote Sensing/Photogrammetry
Research Article
Sand
Sand dunes
Wind speed
Thar Desert
Sand dune
Thar Desert
Satellite data
Morphometric analysis
Sand migration
India
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Summary:Thar Desert region is mainly comprised of sand dunes and sand sheets which are distributed in more than 80 per cent geographical area of western Rajasthan. Among the different types of sand dunes, nearly 50 per cent area of western Rajasthan is covered by parabolic dunes. However, morphodynamics of parabolic dunes in the Thar Desert is not fully understood. For this purpose, high-resolution satellite data of IRS RS2 LISS-IV (5.8 m resolution) and Cartosat-1 DEM (10 m resolution) have been used for delineation of parabolic dunes with the derivation of morphometric parameters (dune length, dune area, volume of sand accumulation and dune height) in western Rajasthan. Scatter plots of these morphometric parameters show a linear relationship with correlation coefficient (0.59–0.80). Interpolated maps show an increased rate of wind speed during 1980–2014. Although several measures have been taken for sand dune stabilisation, differential sand migration has been estimated for selected parabolic dunes using temporal DEMs (SRTM DEM of 2000 and Carto DEM of 2009). The analysis shows average dune shifting of 7.11 m/year in Barmer, 5.15 m/year in Jaisalmer and 3.51 m/year in Bikaner districts of western Rajasthan in the Thar Desert area.
ISSN:0255-660X
0974-3006
DOI:10.1007/s12524-019-01050-1