Drought Analysis On Ngawi District West Jawa Using The Standardized Precipitation Index (Spi) Method Based On Rainfall Data 2012 To 2021

Changes in Pacific Ocean and Indian Ocean temperatures can trigger climate change, one of which is El-Nino. Ngawi Regency, East Java, Indonesia is one of the areas frequently affected by drought, which is thought to be caused by El Nino. This research was conducted to determine the distribution of drought in the Ngawi district. The method used is the Standardized Precipitation Index (SPI) and the data used is monthly rainfall data. The mapping uses ArcGIS 10.5 software with IDW (Inverse Distance Weight) interpolation. The results obtained are that the maximum drought conditions in Ngawi Regency occurred in 2015, with a very dry category. The area with the highest frequency of droughts is Jogorogo District with 36 times. The ENSO correlation value for drought is 5.1%