山东春季极端低温与前冬北大西洋海温的关系

徐玮平, 孟祥新, 顾伟宗, 伯忠凯

Relationship between extremely low temperature in spring in Shandong Province and North Atlantic SST in preceding winter

XU Weiping, MENG Xiangxin, GU Weizong, BO Zhongkai

图8 1979—2018年山东春季极端低温事件发生频率序列回归的同期500 hPa 位势高度距平场(a,单位:dagpm)和850 hPa温度距平场(b,单位:℃) [打点区域为通过α=0.1的显著性检验(下同);细线方框为114°E以东的山东地区(下同)]

Fig.8 Regression of the 500 hPa geopotential height anomaly field (a, Unit: dagpm) and 850 hPa temperature anomaly field (b, Unit: ℃) on occurrence frequency series of extremely low temperature events in spring in Shandong from 1979 to 2018 (the dotted areas passing the 0.1 significance test (the same as below); the rectangle with fine line for location of Shandong to the east of 114°E (the same as below))