A Physically Based Spatial Expansion Algorithm for Surface Air Temperature and Humidity

Table 1

Comparison of the calculated value of air temperature and humidity model of North China Plain and the actual observed value.

Station number	Observed air temperature (k)	Calculated air temperature (k)	Absolute difference (k)	Observed humidity (mb)	Calculated humidity (mb)	Absolute difference (mb)
01 Chaocheng	284.25	285.28	1.03	2.51	1.72	0.79
02 Xinhe	286.35	284.94	1.41	1.97	1.60	0.38
03 Jixian	285.95	285.32	0.63	1.33	1.74	0.40
04 Nangong	285.95	285.32	0.63	1.78	1.66	0.12
05 Qinghe	285.95	286.15	0.20	1.92	1.69	0.23
06 Gucheng	284.75	285.74	0.99	1.64	1.64	0.00
07 Jingxian	284.65	285.58	0.93	1.36	1.61	0.25
08 Wuqiao	285.15	285.64	0.49	1.54	1.61	0.07
09 Linxi	285.55	285.54	0.01	1.44	1.65	0.21
10 Guantao	284.85	285.12	0.27	2.06	1.64	0.42
11 Qiuxian	286.05	286.75	0.70	1.79	1.79	0.00
12 Shunping	285.25	285.83	0.58	1.84	1.63	0.20
13 Xincheng	285.45	285.63	0.18	1.52	1.69	0.17
14 Yixian	285.45	285.63	0.18	1.35	1.74	0.39
15 Bazhou	284.45	286.20	1.75	1.47	1.66	0.19
16 Yongqing	284.65	286.22	1.57	2.04	1.67	0.37
17 Xushui	285.75	285.91	0.16	1.60	1.70	0.09
18 Anguo	285.95	285.78	0.17	2.22	1.67	0.55
19 Anxin	285.35	285.41	0.06	2.56	1.65	0.91
20 Raoyang	285.65	285.38	0.27	1.74	1.62	0.12
21 Wangdu	285.75	285.65	0.10	2.04	1.62	0.43
22 Shenxian	286.15	285.66	0.49	1.50	1.67	0.17
23 Anping	284.95	285.46	0.51	1.94	1.63	0.31
24 Renqiu	284.65	285.89	1.24	1.49	1.66	0.16
25 Mancheng	284.65	285.89	1.24	1.65	1.73	0.08
26 Wenan	284.55	286.24	1.69	1.48	1.66	0.18
27 Dacheng	285.05	286.55	1.50	1.39	1.69	0.30
28 Hejian	284.75	286.07	1.32	2.32	1.65	0.67
29 Cangzhou	284.45	285.84	1.39	1.34	1.66	0.32
30 Xianxian	284.25	285.75	1.50	1.59	1.64	0.05
31 Botou	284.95	286.01	1.06	1.38	1.66	0.28
32 Lixian	286.05	285.87	0.18	1.79	1.66	0.13
33 Shenze	286.15	285.17	0.98	2.25	1.67	0.58
34 Yanshan	284.05	285.27	1.22	1.83	1.58	0.24
35 Xiongxian	284.75	285.94	1.19	1.37	1.63	0.27
36 Xinji	286.45	285.75	0.70	1.99	1.70	0.28
37 Hengshui	285.95	285.79	0.16	1.63	1.67	0.05
38 Wuyi	285.05	285.42	0.37	1.67	1.63	0.05
39 Dongguang	285.35	285.90	0.55	1.56	1.66	0.10
40 Nanpi	284.55	285.62	1.07	1.35	1.64	0.29
41 Linzhang	285.45	285.40	0.05	2.72	2.09	0.63
42 Shahe	286.05	285.84	0.21	2.83	2.19	0.64
43 Lincheng	286.25	286.77	0.52	1.66	2.43	0.77
44 Longyao	285.75	286.33	0.58	1.60	2.13	0.53
45 Zanhuang	285.75	286.33	0.58	1.44	2.12	0.69
46 Ningjin	286.25	285.51	0.74	2.41	2.12	0.29
47 Xingtai	285.85	285.89	0.04	2.06	2.10	0.05
48 Renxian	285.55	285.61	0.06	2.45	2.01	0.44
49 Wuan	285.45	285.53	0.08	2.43	2.18	0.26
50 Nanhe	285.95	285.38	0.57	2.51	2.03	0.48
51 Quzhou	286.35	285.99	0.36	2.12	2.08	0.04
52 Yongnian	286.05	285.71	0.34	2.08	2.12	0.04
53 Weixian	285.45	285.41	0.04	2.43	2.04	0.39
54 Feixiang	285.75	285.63	0.12	2.77	2.07	0.70
55 Pingxiang	285.85	286.42	0.57	2.35	2.15	0.20
56 Zaoqiang	284.85	285.71	0.86	1.65	2.07	0.42
Average			0.65			0.31
Variance			0.25			0.05