Drought trend analysis in a semi-arid area of Iraq based on Normalized Difference Vegetation Index, Normalized Difference Water Index and Standardized Precipitation Index

Ayad M F AL-QURAISHI, Heman A GAZNAYEE, Mattia CRESPI

Journal of Arid Land . 2021, (4): 413 -430 . DOI: 10.1007/s40333-021-0062-9