National Drought Plan for the Philippines

5.1.1 Percentage of Normal Rainfall Index (PNRI) .....33 5.1.2 Standardised Precipitation Index (SPI) .....33 5.1.3 Normalised Difference Vegetation Index (NDVI) and Land Surface Temperature (LST) .33

  Index, Differences, Vegetation, Normalised, Ndvi, Normalised difference vegetation index