2023年上半年我国干旱的特征及其成因分析

王昀, 王丽娟, 陆晓娟, 张金玉, 王芝兰, 沙莎, 胡蝶, 杨扬, 颜鹏程, 李忆平

Analysis of the characteristics and causes of drought in China in the first half of 2023

WANG Yun, WANG Lijuan, LU Xiaojuan, ZHANG Jinyu, WANG Zhilan, SHA Sha, HU Die, YANG Yang, YAN Pengcheng, LI Yiping

图6 2023年3（a）、4（b）、5（c）、6（d）月500 hPa位势高度（黑色实线）及其距平（填色区）（单位：gpm） （红色实线为5 880 gpm等值线，黑色粗实线为1981—2010年气候态5 880 gpm等值线，黑色圆点为距平超过一倍标准差。）

Fig.6 Spatial distribution of 500 hPa geopotential height field (black solid lines), and its anomalies (color shaded) in March (a), April (b), May (c) and June (d) in 2023 (Unit: gpm) (The red solid lines represent the 5 880 gpm contour lines, the black thick solid lines represent the 5 880 gpm contour lines for the climate state from 1981 to 2010, areas exceeding a standard deviation are covered with black dots)