Early findings of the enhancement of MSG fire product by using regionalized thresholds.

The possible enhancement of the METEOSAT Second Generation (MSG) fire detection product for the study area of Turkey (FIR) is investigated in this study. Regionalized threshold use is proposed for the FIR tests rather than using the static thresholds for the whole MSG scan disc area. Regionalized thresholds for the month of July 2007 is obtained by using the ground truth data from Ministry of Forest and Water Affairs (MoFWA) and Spinning Enhanced Visible and Infrared Imager instrument channels' of IR3.9, IR10.8, and IR13.4 data. The thresholds are used to generate the enhanced new product (enhFIR) for the month of July 2008. The MoFWA ground data for the same month is used to validate enhFIR and FIR product sub-classes of ‘possi-ble’ and ‘probable’. The monthly contingency tables are obtained separately for each product type and categorical statistics of probability of detection (POD) and false alarm rate (FAR) statistics are introduced. The test statistics showed that POD rate for the enhFIR product is almost twice the 'probable’ type of FIR product while it is one and half for the ‘possible’ type. On the other hand, the FAR rate for enhFIR product and 'probable’ type of FIR product are about the same where it is doubled for the ‘possible’ type of FIR product.