Fig. 8From: Extreme precipitation trends in Northeast China based on a non-stationary generalized extreme value modelCorrelation coefficients between the EP and a, b 500 hPa height field; c, d 850 hPa specific humidity field and wind field in early summer period 1 (P1) and early summer period 2 (P2). The direction of the arrow indicates the wind direction, and the length of the arrow indicates the wind force. Dotting means the correlation coefficients are significant at the 0.05 levelBack to article page