Table 3
Comparison between Liulin observation data and prediction model data of NAIRAS, CARI-6M, and KREAM

	Liulin-6K (A) (μSv)	NAIRAS (B) (μSv)	Error(%, 100× ((B A)/A))	CARI-6M (C) (μSv)	Error (%, 100× ((C A)/A))	KREAM (D) (μSv)	Error (%, 100× ((D A)/A))
1	61.32	101.09	64.86	68.75	12.12	56.87	–7.26
2	56.50	98.61	74.53	67.24	19.01	51.01	–9.72
3	102.82	137.25	33.49	82.49	–19.77	76.25	–25.84
4	84.00	120.63	43.61	70.96	–15.52	84.78	0.93
5	80.60	-	-	-	-	71.26	–11.59
6	81.79	121.02	47.96	69.70	–14.78	80.53	–1.54
7	52.44	101.09	92.77	68.75	31.10	49.82	–5.00
8	6.10	-	-	-	-	7.87	29.02
9	47.18	66.18	40.27	44.62	–5.43	46.77	–0.87
10	25.19	23.20	–7.90	27.44	8.93	23.88	–5.20
11	54.36	42.87	–21.14	31.93	–41.26	44.72	–17.73
12	70.72	120.69	70.66	72.74	2.86	62.31	–11.89
13	95.65	120.35	25.82	52.91	–44.68	75.14	–21.44
14	116.73	131.86	12.96	71.55	–38.70	104.15	–10.78
15	55.59	73.41	32.06	53.37	–3.99	47.18	–15.13
16	15.46	-	-	-	-	15.49	0.19
17	55.51	98.61	77.64	67.24	21.13	53.44	–3.73
18	62.04	42.87	–30.90	31.93	–48.53	48.39	–22.00
19	90.05	120.69	34.03	72.74	–19.22	72.31	–19.70
20	83.95	101.09	20.42	68.75	–18.11	71.18	–15.21
21	67.87	98.61	45.29	67.24	–0.93	57.07	–15.91
22	11.16	5.85	–47.58	13.28	19.00	10.28	–7.89
23	10.96	6.29	–42.61	16.82	53.47	10.48	–4.38
24	75.50	137.25	81.79	82.49	9.26	74.90	–0.79
25	113.73	120.63	6.07	70.96	–37.61	102.31	–10.04
Average error			43.38		22.06		10.95