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8 2023年4(a)、5(b)、6(c)月500 hPa位势高度距平(填色区,单位:gpm)及T-N波作用通量(箭矢,单位:m2·s-2)空间分布
Fig.8 Spatial distribution of 500 hPa geopotential height anomaly (the color shaded, Unit: gpm) and T-N wave activity flux (arrow vectors, Unit: m2·s-2) in April (a), May (b) and June (c) of 2023