RUSSIAN JOURNAL OF EARTH SCIENCES, VOL. 19, ES2003, doi:10.2205/2018ES000647, 2019

Table 2. Classification of Drought Levels Based on NDDI Index [Gu et al., 2007]
No. NDDI value Drought level Legend
1 NDDI $< 0.1$ Non-drought Green
2 $0.1 \leq$ NDDI $< 0.3$ Drought-moderate Yellow
3 $0.3 \leq$ NDDI Drought-severe Red

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Citation: Trinh Le Hung, Danh Tuyen Vu (2019), Application of remote sensing technique for drought assessment based on normalized difference drought index, a case study of Bac Binh district, Binh Thuan province (Vietnam), Russ. J. Earth Sci., 19, ES2003, doi:10.2205/2018ES000647.

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