汉江流域2021年伏秋连汛降水季内差异特征及成因分析

肖莺, 高雅琦, 杜良敏, 任永建

Analysis on the characteristics and causes of intraseasonal differences of the continuous rainfall in Hanjiang River Basin during the summer and autumn in 2021

XIAO Ying, GAO Yaqi, DU Liangmin, REN Yongjian

图14 1961—2021年7月平均EMPI与200 hPa纬向风（a）、500 hPa位势高度（b）的相关系数，P2时段北太平洋位势高度场关键区与500 hPa高度的相关系数（填色）（c），2021年9月11日—10月31日500 hPa高度场（黑色等值线）及其距平（填色）（单位：gpm）（d） （打点区通过0.05的显著性检验，红色线为≥5 880 gpm气候态位置）

Fig.14 The correlation fields between the average July EMPI and 200 hPa zonal winds (a), 500 hPa geopotential heights (b) from 1961 to 2021, the correlation fields between geopotential height field in the key area with 500 hPa geopotential heights during P2 period in the North Pacific (color shaded) (c), 500 hPa height field (black isolines) and its anomalies (color shaded) from September 11 to October 31, 2021 (Unit: gpm) (d) (The dotted area passed the significance test of α=0.05, the red lines indicate the climatic state greater than or equal to 5 880 gpm)