Research Article
Drought Assessment by a Short-/Long-Term Composited Drought Index in the Upper Huaihe River Basin, China
Table 4
Drought categories of the short-term/long-term CDI.
| Drought category | Short-term CDI | Long-term CDI |
| Normal | (−0.37, +∞) | (−0.33, +∞) | Mild drought | (−0.69, −0.37) | (−0.78, −0.33) | Moderate drought | (−0.97, −0.69) | (−1.16, −0.78) | Severe drought | (−1.36, −0.97) | (−1.39, −1.16) | Extreme drought | (−∞, −1.36) | (−∞, −1.39) |
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