Paper
13 December 2006 Evaluation of airborne C- and X- band SAR data covering parts of Darbhanga for flood signatures
Author Affiliations +
Abstract
An evaluation of C- (developed at SAC) and X- band (data of opportunity) Airborne SAR (ASAR) data was done for flood signatures. The data was collected over parts of a perennially flood affected area of Darbhanga district located in the Bihar State. This activity is carried out as an R&D effort under the Disaster Management Support Programme (DMSP) at SAC. The ASAR data was critically analyzed for identifying flood features and with an aim to develop it finally as a system dedicated for DMS. The need for such a system is important as many a times there are gaps in satellite coverage over tropical regions for flood damage assessment besides it was observed that the varying flight directions provided additional information as regards the flood signatures. Both the airborne data were available in near synchronous time frame and with VV polarization. A comparison of C- and X- band ASAR showed that the inundated area was estimated better in X- band (62.8 %) as compared to C- (50.2 %) and that the combined data set gave further improvement (71.0 %).
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Aishwarya Narain, Shiv Mohan, and R. J. Bhanderi "Evaluation of airborne C- and X- band SAR data covering parts of Darbhanga for flood signatures", Proc. SPIE 6412, Disaster Forewarning Diagnostic Methods and Management, 64120U (13 December 2006); https://doi.org/10.1117/12.697978
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Floods

Synthetic aperture radar

X band

Data acquisition

Satellites

Bridges

Polarization

Back to Top