Table 4 Drought duration and magnitude distinctiveness at different time scale for the GWB during 1901–2002
From: Spatial and temporal appraisal of drought jeopardy over the Gangetic West Bengal, eastern India
Lag time | Longest duration (≤ − 1.0 for consecutive months) | Duration of most intense drought (≤ − 2.0 for consecutive months) | |||||||
|---|---|---|---|---|---|---|---|---|---|
DDL(M) | Year | MD | MID | DDI(M) | Year | MD | MID | DDA(M) | |
3-month | 7 | Nov, 1921 to May, 1922 | −12.75 | − 1.82 | 3 | May, 1972 to July, 1972 | −7.31 | −2.44 | 1.96 |
12-month | 21 | Sept, 1957 to May, 1959 | − 28.76 | −1.37 | 7 | Sept, 1966 to March, 1967 | −16.05 | −2.29 | 4.18 |
24-month | 27 | April, 1954 to June, 1956 | − 42.12 | −1.56 | 13 | June, 1967 to June, 1968 | −31.45 | −2.42 | 7.56 |