Table 1 5%, 50%, and 95% quantiles of the CC (), Bias (%), RMSE (mm/month) for annual and seasonal precipitation data between ERA5 and observation in seven zones of China.

Zone	Quantiles (%)	Spring			Summer			Autumn			Winter
Zone	Quantiles (%)	CC	Bias	RMSE	CC	Bias	RMSE	CC	Bias	RMSE	CC	Bias	RMSE
WNW	5	0.26	19.59	4.95	0.36	−5.81	12.33	0.29	8.99	4.48	0.33	25.76	1.79
	50	0.66	43.17	17.34	0.62	6.95	29.77	0.64	30.22	14.10	0.62	68.72	7.47
	95	0.87	76.56	124.29	0.81	22.72	264.14	0.81	48.29	94.82	0.85	121.52	30.69
ENW	5	0.45	−45.75	5.75	0.28	−57.59	17.48	0.58	−52.89	5.09	0.25	−38.00	1.88
	50	0.74	20.56	22.92	0.68	−12.68	46.77	0.77	18.95	24.07	0.57	22.94	8.14
	95	0.91	339.05	86.08	0.84	237.82	174.18	0.86	254.02	116.87	0.83	263.60	46.02
N	5	0.68	−20.16	16.38	0.60	−35.85	29.07	0.67	−27.36	15.32	0.42	6.79	5.19
	50	0.81	36.33	35.40	0.75	11.31	87.21	0.83	30.65	35.27	0.81	92.22	11.57
	95	0.90	117.99	55.39	0.86	69.34	147.38	0.93	112.02	58.79	0.94	305.51	20.95
NE	5	0.63	9.41	21.48	0.67	−7.02	37.15	0.67	2.96	18.14	0.57	14.50	5.68
	50	0.84	30.78	39.04	0.83	8.98	58.83	0.85	18.90	35.08	0.83	58.86	9.78
	95	0.92	69.30	72.75	0.90	34.11	126.39	0.92	49.33	57.31	0.91	122.93	29.57
Tibet	5	0.00	2.48	13.07	0.08	6.52	40.36	0.03	−25.29	16.36	0.13	−25.28	5.25
	50	0.50	126.04	51.03	0.50	48.97	109.70	0.55	110.63	44.94	0.46	212.00	18.69
	95	0.78	321.73	326.06	0.84	201.17	450.18	0.78	839.43	271.69	0.70	339.14	180.58
SW	5	0.28	7.54	39.70	0.32	−4.39	67.88	0.45	28.15	44.87	0.36	28.71	21.11
	50	0.64	46.06	105.01	0.63	20.57	153.80	0.71	146.62	97.74	0.69	157.73	59.15
	95	0.82	168.67	276.22	0.82	68.83	412.69	0.85	601.52	233.66	0.86	601.44	170.02
SE	5	0.37	−7.52	51.99	0.61	−10.26	99.57	0.72	−7.04	41.95	0.65	−14.34	20.76
	50	0.66	16.56	139.11	0.76	14.35	161.20	0.85	8.98	64.10	0.84	8.23	43.94
	95	0.84	64.40	368.13	0.85	39.29	284.99	0.93	40.43	124.56	0.95	108.98	143.57

The maximum and minimum values of each column are shown with bold and italics style, respectively, except for the Bias, whose minimum value is shown as the absolute minimum value.

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