Research Article

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

Figure 6

Annual changes of extreme temperature indices in Northeast China. (a) Cold night frequency (TN10p). (b) Annual minimum value of daily minimum temperature (TNn). (c) Frost days (FD). (d) Warm night frequency (TN90p). (e) Growing season length (GSL). The blue line indicates the mean value before and after the changepoint, while red indicates the magnitude of change.
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