亚欧大陆波列模态与热带对流对长江流域2024年夏末秋初复合高温干旱事件的协同影响

沈诗荐, 李金建, 马鹤翟, 李兴, 孟庆怡, 李霄宇

Synergistic impacts of Eurasian wave train mode and tropical convection on the compound hot and drought event in the Yangtze River Basin in late summer and early autumn in 2024

SHEN Shijian, LI Jinjian, MA Hedi, LI Xing, MENG Qingyi, LI Xiaoyu

图7 1979—2024年8月21日—9月20日第一旬（a、b）、第二旬（c、d）及第三旬（e、f）PC1与亚欧大陆200 hPa位势高度（单位：gpm）（a、c、e）及南海—菲律宾—西太平洋区域OLR（单位：W·m-2）（b、d、f）回归系数的空间分布 [打点区域通过显著性检验（P≤0.05），下同；黑色矩形为南海—菲律宾—西太平洋区域]

Fig.7 Spatial distribution of regression coefficients of PC1 onto the 200 hPa geopotential height over the Eurasian continent (Unit: gpm) (a, c, e) and OLR (Unit: W·m-2) over the south China Sea-Philippines-western Pacific region (b, d, f) for the first (a, b), second (c, d), and third (e, f) ten-day periods during August 21-September 20, 1979-2024 (The dotted area passed significance test (P≤0.05), the same as below; the black rectangle denotes the south China Sea-Philippines-western Pacific region)