基于SPEI的粤西近50 a干旱特征分析

李家良, 彭丽英, 刘祖任, 余绍荣, 梁家杰

Drought characteristics in western Guangdong over the past 50 years based on SPEI

LI Jialiang, PENG Liying, LIU Zuren, YU Shaorong, LIANG Jiajie

表3 1973—2022年粤西春、秋季SPEI与环流指数的相关系数

Tab.3 The correlation coefficients between SPEI and circulation indices in spring and autumn in western Guangdong during 1973-2022

季节 PDO SOI PNA WP 北半球极涡面积指数 南海副热带高压脊线位置指数 春季 0.04 0.11 0.27 -0.14 0.45** -0.45** 秋季 0.04 0.15 0.07 -0.26 0.18 -0.08