Trend and Abrupt Regime Shift of Temperature Extreme in Northeast China, 1957–2015

Figure 2

Spatial distributions of trends per decade for the period of 1957–2015 in Northeast China for extremely cold temperature indices (TN10p (a), TNn (b), TXn (c), and FD (d)). The up and down triangles represent positive and negative trend, respectively. Filled triangles indicate that the trend is significant at 95% confidence level, and vice versa. The size of the triangle is proportional to the magnitude of the trends.

(a)

(b)

(c)

(d)