Fig. 4From: Analysis of the long-term agricultural drought onset, cessation, duration, frequency, severity and spatial extent using Vegetation Health Index (VHI) in Raya and its environs, Northern EthiopiaMulti-temporal trend of LST-NDVI, VCI-TCI, and VHI—rainfall 2001–2015. Midlands area: g1–g3 HintaloWejirat, Highlands area: h1–h3 Endamehoni, i1–i3 Ofla, j1–j3 Alaje, k1–k3 GidanBack to article page