4. Results and Discussion
The estimated rainfall from satellite is GSMaP that a binary format data convert to
ASCII format, and directly point to point from the atmosphere to observations in the area.
The results showed a good relation over the study area which GSMaP_MVK is the satellite
reanalysis of the estimated rainfall to observations than GSMaP_NRT is the near real time
estimates rainfall that the investigated statistic parameters. The comparison of average daily
GSMaP_MVK, GSMaP_NRT and 116 observations over whole Thailand are showing Fig.
1.2. The investigating estimated rainfall from satellite to observations by applied the standard
statistics verification technique as the correlation coefficient GSMaP_MVK is 0.88 and
GSMaP_NRT is 0.79, and the mean absolute errors of GSMaP_MVK is 1.27 and
GSMaP_NRT is 1.73.