SPI-6 values for 331 Divisional Secretariat divisions of Sri Lanka (1981–2024)
This dataset contains the 6-month Standardized Precipitation Index (SPI-6) monthly time series for all 331 Divisional Secretariat (DS) divisions of Sri Lanka, spanning 1981 to 2024. SPI-6 values were computed using the SPI_SL_6.exe software, developed in line with World Meteorological Organization (WMO) recommendations...