Comparison of Analysis and Spectral Nudging Techniques for Dynamical Downscaling with the WRF Model over China

Table 1

Summary of the mean error (ME), the root mean square error (RMSE), the correlation coefficient (cc), PO, and NH at the threshold of 50 mm and 200 mm for monthly accumulated precipitation in May and June, 2011.

		ME	cc	RMSE	PO	NH	PO	NH
					Threshold = 50 mm		Threshold = 200 mm
Accumulated	NN	37.12	0.76	122.72	0.22	0.21	0.16	0.71
rain in May	AN	−37.3	0.39	77.46	0.76	0.16	0.93	0.72
(mean = 63.37 mm)	SN	−10.07	0.66	61.81	0.48	0.26	0.41	0.38
Accumulated	NN	43.25	0.49	195.63	0.18	0.18	0.36	0.58
rain in June	AN	−62.78	0.34	139.99	0.70	0.10	0.87	0.39
(mean = 100.82 mm)	SN	−15.35	0.74	91.39	0.39	0.14	0.30	0.26