Abstract
Space based flood monitoring can provide a systematic and timely solution to the problem of flood mapping. This paper presents a way to detect as well as monitor flood by using passive microwave remote sensing (MRS). The method is based on the use of brightness temperature taken from Passive MRS Satellite. A case study from October 2012 to September 2013 on Dhemaji district of Assam, India shows that the brightness temperature (T b ) ratios of measured and calibrated places for the same days can be used for discriminating the flooded and non-flooded areas efficiently. In comparison to conventional methods used in the same field, the proposed method is more accurate, which uses a threshold value of the T b ratio for detection of flooding and non-flooding conditions. Keywords: Microwave Remote Sensing, Flood detection, Brightness Temperature, SSM/I
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