基于多源数据的新疆干旱特征及干旱模型研究

秦大辉, 杨灵, 谌伦超, 段云飞, 贾宏亮, 李贞培, 马建琴

A study on the characteristics and model of drought in Xinjiang based on multi-source data

QIN Dahui, YANG Ling, CHEN Lunchao, DUAN Yunfei, JIA Hongliang, LI Zhenpei, MA Jianqin

表1 干旱等级划分

Tab.1 Classification of drought levels

干旱等级 SPEI SDMI 无旱 ≥ - 0.5 ≥ 0.4 轻度干旱 ( - 1.0 , - 0.5 ) ( 0.3,0.4 ) 中度干旱 ( - 1.5 , - 1.0 ] ( 0.2,0.3 ] 重度干旱 [ - 2.0 , - 1.5 ] [ 0.1,0.2 ] 极度干旱 < - 2.0 < 0.1