Advances in Meteorology

Research Article

Temporal Trends and Spatial Patterns of Temperature and Its Extremes over the Beijing-Tianjin Sand Source Region (1960–2014), China

Table 3

Trend slopes (°C/decade) of mean temperature and extreme temperature indices in the five subregions during the different stages.


Stage	S₁					S₂					S₃					S

Index	I	II	III	IV	V	I	II	III	IV	V	I	II	III	IV	V	I	II	III	IV	V	Units

	0.00	0.08	−0.02	−0.02	−0.08	0.74	0.92	0.77	0.68	0.85	−0.09	0.08	−0.22	−0.18	−0.29	0.31	0.41	0.36	0.30	0.37	°C/decade
	−0.01	−0.18	0.05	0.03	−0.11	0.85	0.82	0.73	0.56	0.91	0.36	0.51	−0.04	−0.58	−0.27	0.36	0.38	0.40	0.34	0.41	°C/decade
	−0.09	−0.35	−0.42	−0.20	0.04	0.61	0.49	0.38	0.08	−0.01	−0.40	−0.12	−0.36	−0.09	−0.75	0.19	0.31	0.25	0.22	0.31	°C/decade
	−0.10	0.03	−0.16	0.15	0.13	0.64	0.71	0.62	0.56	0.75	0.43	0.33	0.28	0.19	0.08	0.24	0.40	0.29	0.29	0.38	°C/decade
	0.54	1.17	0.77	0.42	0.25	1.07	1.37	1.34	1.28	1.50	−1.13	−0.94	−1.09	−1.12	−1.21	0.45	0.46	0.50	0.41	0.37	°C/decade
	0.11	−0.12	−0.07	−0.11	0.08	0.53	0.58	0.45	0.34	0.49	−0.04	0.02	−0.15	−0.28	−0.46	0.23	0.34	0.27	0.26	0.35	°C/decade
TN10p	−0.93	−1.62	−0.23	−1.55	−2.07	−3.32	−3.04	−4.72	−2.65	−2.64	−0.20	−0.64	0.39	−1.04	−0.53	−1.72	−2.30	−2.30	−2.14	−2.28	days/decade
TX10p	1.10	1.13	1.74	1.29	1.52	−2.38	−2.59	−2.20	−1.80	−1.95	−1.33	−1.20	−0.71	−0.07	0.09	−0.97	−0.86	−1.13	−0.82	−0.81	days/decade
CSDI	0.74	−2.64	0.29	−0.35	−0.92	−0.45	−0.66	−0.89	−0.83	−0.92	−0.61	−0.53	0.18	−2.54	−1.14	−0.72	−1.38	−0.54	−0.81	−1.04	days/decade
TNn	−0.07	0.98	0.09	0.05	0.19	1.03	1.26	1.78	2.10	2.05	0.81	0.90	0.52	0.17	−0.20	0.25	0.55	0.60	0.49	0.49	°C/decade
TN90p	−0.33	0.20	−0.58	0.11	0.48	3.96	4.01	3.34	2.96	3.09	1.17	1.96	−1.31	−1.18	−0.48	1.60	2.07	1.80	1.63	1.70	days/decade
TX90p	−0.55	−1.44	−1.44	−1.07	−0.71	3.29	3.69	2.69	1.98	2.03	−0.56	0.45	−3.16	−1.53	−2.13	1.31	1.07	1.17	0.87	1.13	days/decade
WSDI	0.58	−1.57	−0.32	−0.28	−0.46	5.42	3.29	4.31	0.57	2.45	1.20	2.16	4.31	−2.76	−2.92	1.34	1.00	1.40	0.57	0.88	days/decade
TXx	0.33	−0.03	−0.78	−0.42	0.11	0.54	1.02	0.33	−0.16	0.22	−1.22	−0.13	−1.08	−1.12	−0.54	0.11	0.23	0.23	0.05	0.24	°C/decade
DTR	−0.31	−0.60	−0.33	−0.54	−0.58	−0.04	−0.06	−0.18	−0.10	−0.21	−0.09	−0.01	−0.07	−0.29	−0.14	−0.09	−0.23	−0.17	−0.20	−0.21	°C/decade
GSL	−4.26	5.92	3.56	1.11	3.90	3.39	5.17	3.03	5.64	7.95	0.14	3.52	−0.84	0.35	3.23	2.92	3.42	3.40	3.08	3.28	days/decade

S₁ is 1960–1978, S₂ is 1979–2000, and S₃ is 2000–2014; is 0.001 level of significance, is 0.01 level of significance, and is 0.05 level of significance.