长江流域非典型少雨型主汛期环流特征及其影响机制分析
王海燕, 王孝慈, 张灵, 周耘逸, 孟英杰

Analysis of circulation characteristics and influencing mechanisms of atypical below-normal precipitation type during main flood season over the Yangtze River Basin
WANG Haiyan, WANG Xiaoci, ZHANG Ling, Zhou Yunyi, MENG Yingjie
图7 2025年和2023年6—8月逐月500 hPa平均位势高度(黑色等值线)及其距平场(填色)(单位:dagpm)
(红色实线包围区域表示长江流域)
Fig.7 Monthly mean 500 hPa geopotential height (black contours) and its anomalies field (the color shaded) from June to August in 2025 and 2023 (Unit: dagpm)
(The region bounded by the red solid line represents the Yangtze River Basin)