Fig. 4From: Extreme precipitation trends in Northeast China based on a non-stationary generalized extreme value modelSpatial distributions of the trends in location parameter \({u}_{1}\) and scale parameter \({\sigma }_{1}\) for the EP in Northeast China in a, c early summer (ES) and b, d mid-summer (MS). The blue triangle represents an upward trend, while the red triangle represents a downward trendBack to article page