2022年夏季我国高温干旱特征及其环流形势分析

林纾, 李红英, 黄鹏程, 段欣妤

Characteristics of high temperature, drought and circulation situation in summer 2022 in China

LIN Shu, LI Hongying, HUANG Pengcheng, DUAN Xinyu

表3 基于降水量距平百分率旬尺度的干旱等级划分标准

Tab. 3 The classification standard of drought grades with ten-day scale based on precipitation anomaly percentage

等级 类型 降水距平百分率/% 1 无旱 PA >-50 2 轻旱 -65 <PA≤-50 3 中旱 -80 <PA≤-65 4 重旱 -95 <PA≤-80 5 特旱 PA≤-95