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

Table 5

Analysis results of changing points of the climate extreme indices in Northeast China.

Climate indices	Trend test	Turning points
	Trend rate	Significant level	Shift year	Mean before shift	Mean after shift	Number of stations with a positive shift	Number of stations with a negative shift
TN10p	−1.67  d/10 yr	0.05	1984	12.28%	5.83%	27	89
TN90p	1.79 d/10 yr	0.05	1990	9.65%	16.40%	98	18
TNn	0.51°C/10 yr	0.05	1990	−31.11°C	−28.75°C	86	30
FD	−2.04 d/10 yr	0.05	1990	180.45 days	171.28 days	25	91
GSL	1.67 d/10 yr	0.05	1990	194.22 days	202.07 days	98	18

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