Abstract
The application of SAR data is a proven technology in geological studies but very few accounts are available in India, which can evaluate and demonstrate the utility of microwave signatures as an important tool for geological mapping. In this connection, the significance of polarization is an important parameter in enhancing geological elements. Present study reveals that the simple polarization composite prepared from different polarization channels can significantly aid the delineation of geological features as demonstrated from the Proterozoic metasedimentary sequences of Kurnool Group. The polarization colour composites reveal that different sedimentary units can be differentiated on the basis of variable back scattering return in different polarization channel. Further geological structures of regional importance can also be delineated in these colour composite images. Comparative analysis of different composite images with published geological maps, illustrates the capabilities of the microwave polarization in enhancing geological elements and how they can be used in updating geological data.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
Blanchard, B.I. and Rouse, J.W. (1980) Deploarization of Electromagnetic waves scattered from an inhomogeneous half-space bounded by a rough surface. Radio Science, v.16(4), pp.223–232.
Blom, R.G., Scheck, L.R. and Alley, R.E. (1987) What are the best Radar Wavelengths, incidence angles, and polarizations for discrimination among lava flows and sedimentary rocks? — A statistical approach. IEEE Trans. on Geoscience and Remote Sensing, v.25(2), pp.774–789.
Daily, M.I., Elachi, C., Farr, T.G. and Schaber, G. (1978) Discrimination of Geologic units in Death Valley using dual frequency and polarization imaging radar data. Geophys. Res. Lett., No.5, pp.889–892.
Ford, J.P., Blom, J.I., Coleman, J.R., Farr, T.J., Plaut, J.J., Pohn, J.A. and Sabins Jr., F.F. (1998) Radar Geology, Principles and application of imaging Radar (Manual of Remote Sensing, Vol.2), F.M. Henderson and Anthony J. Lewis (Eds.), John Willey and Sons, pp.511–559.
Nagaraja Rao, B.K. and Rajurkar, S.T. (1987) Purana Basins of Peninsular India. Mem. Geol. Soc. India, no.6, pp.33–86.
Rivera Rio, J.N. and Lozano-Garcia, D.F. (2000) Spatial filtering of Radar Data (Radarsat) for wetlands (Brackish Marsh) classification. Jour. Remote Sensing of Environment, v.73, No.2, pp.143.151.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Guha, A., Vinod Kumar, K., Kamaraju, M.V.V. et al. Potentials of alternate polarization of Envisat ASAR data in geological mapping — A case study in Kurnool Group of rocks, Andhra Pradesh. J Geol Soc India 73, 268–272 (2009). https://doi.org/10.1007/s12594-009-0083-z
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12594-009-0083-z