Rahul Kanwar, N. C. Mishra and R. P. Singh
Department of Civil Engineering, Indian Institute of Technology
Multi-Scanner Microwave Radiometer (MSMR) onboard the IRS – P4 measures brightness temperature over the globe. The ERS scatterometer, operates at 5.4 GHz (C band) on board the European Remote Sensing Satellite System (ERS – 2) gives the scattering coefficient over the globe. Using MSMR and ERS data day to day monitoring of Earth and ocean regions have been effectively carried out by many scientists. In the present study, we have analyzed the brightness temperature observed by MSMR sensor and scattering coefficient observed by ERS – 2 over Indian Sub continent as well as adjacent oceanic regions. Monthly time series analysis of such data has been made for the year 1999/2000. The variations of scattering coefficients and brightness temperature over land regions can be attributed to different surface types. On the other hand the variations over oceanic region may be due to sea surface temperature or prevailing wind patterns. Time series changes of brightness temperature and scattering coefficient will be presented over Indian region. The brightness temperature and scattering coefficient together may prove to provide many important informations about these surfaces, resolving some of the ambiguities, which a particular sensor fails to resolve.