亚非副热带西风急流入口区位置及动能异常对中国华北盛夏年代际干旱的影响
魏建宁,张杰

Influence of the Position and Kinetic Energy Anomalies of the Inlet Region of the Asian-African Subtropical Westerly Jet on the Mid-Summer Interdecadal Drought in North China
Jianning WEI,Jie ZHANG
图6 波活动指数回归的1997 -2015年500 hPa高度场(单位: ×10-1 ·m2·s2
阴影区通过了90%的显著性检验
Fig.6 500 hPa height field returned by wave activity index from 1997 to 2015.Unit: ×10-1 ·m2·s2.The shadow area has passed the 90% significance test