Spatial and Temporal Characteristics of Meteorological Drought in Shandong Province, China, from 1961 to 2008

Table 1

Classification standard of the meteorological drought composite index (CI).

Level	Class	CI
1	No drought	−0.6 < CI
2	Slight drought	−1.2 < CI ≤ −0.6
3	Moderate drought	−1.8 < CI ≤ −1.2
4	Heavy drought	−2.4 < CI ≤ −1.8
5	Extreme drought	CI ≤ −2.4