5. CONCLUSION
The analysis of spatial pattern of drought using spatial SPI and temporal SPI from rainfall data is useful to
determine the spatial distribution, characteristics of drought, evaluate drought affected areas and drought frequency
in the Northeast of Thailand. By analyzing spatial pattern of rainfall data in the region was found that spatial pattern
of mean annual rainfall for 29 years periods increased from the Southwest to the Northeast. A measurement of
reliability of rainfall at each station for the study periods using CV analysis indicated that the high values of CV 6
months and 12 months were found in the Western part of the region.Multi-temporal SPI