Detection of water deficit conditions in different soils by comparative analysis of standard precipitation index and normalized difference vegetation index.

ABSTRACT: The detection of water deficit conditions in different soils of Prakasam district, Andhra Pradesh, India was assessed in consecutive two seasons of 2017-18 to 2019-20 cropping seasons using combined indicators developed from Standard Precipitation Index (SPI) and Normalized Difference Vegetation Index (NDVI). Historical rainfall data during the study period of 56 administrative units were analyzed by using R software and derived three-month SPI. The MODIS satellite data from 2007 to 2020 was downloaded out of which the first ten years' data was used as mean monthly NDVI and the remaining period data was used to derive the anomaly index for the specific month. MODIS satellite data was downloaded, using LST and NDVI, and MSI values were calculated. The NDVI anomaly was derived using MODIS da

SUBMITTER: Medida SK 

PROVIDER: S-EPMC10121929 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature