Continuous drought process categories & Monitoring period

Statistical feature quantity

Meteorological drought level

Little-drought (2)

Mid-drought (3)

High-drought (4)

Extreme-drought (5)

Summer and autumn and winter drought (monitoring period: December 1st to February 10th)

Number of consecutive drought days(d)

-

-

67 - 90

≥91

Lifting rainfall (6d precipitation)

-

≥30mm