Drought monitoring in Iran using the perpendicular drought indices. - Alireza Shahabfar; Abduwasit Ghulam; Josef Eitzinger (Int. J. Appl. Earth Obs. Geoinformation, 2012)

Understanding Hydrological Repartitioning and Shifts in Drought Regimes in Central and South-West Asia Using MODIS Derived Perpendicular Drought Index and TRMM Data. - Alireza Shahabfar; Abduwasit Ghulam; Christopher Conrad (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2014)