Table 3.

Performance statistics of monthly averages for 4-km southern California WRF simulation.

	Obs Mean	Model Mean	IOAa	r b	RMSEc	MBd	MNB(%)e	NMB(%)f	NME(%)g
	March 2010
Wind Speed (m·s−1)	1.7	2.3	0.76	0.68	1.2	0.5	75	33	53
Wind Direction (deg)	190	191	0.76	0.57	97	0.3	294	1	30
Temperature (°C)	13.0	13.0	0.94	0.92	2.3	−0.1	6	−1	15.0
RH (%)	62	47	0.75	0.72	21.2	−14	−19	−23	28
Radiation (W m2)	389	510	0.93	0.88	161	44	31	12	31
Dew Point (°C)	5.7	4.4	0.54	0.46	4.5	−2.9	−98	−76	90
	April 2010
Wind Speed (m·s−1)	1.8	2.5	0.76	0.68	1.3	0.5	70	32	52
Wind Direction (deg)	206	208	0.74	0.54	95	12	282	2	27
Temperature (°C)	13.8	13.5	0.93	0.90	2.4	−0.2	1	−2	14
RH (%)	64	52	0.78	0.75	18	−12	−16	−18	24
Radiation (W·m2)	425	529	0.89	0.82	206	40	78	10	36
Dew Point (°C)	6.6	5.4	0.61	0.47	3.9	−2.2	−49	−39	54
	May 2010
Wind Speed (m·s−1)	1.9	2.4	0.76	0.68	1.2	0.5	71	33	53
Wind Direction (deg)	213	219	0.73	0.53	91	6	216	4	27
Temperature (°C)	16.5	16.5	0.91	0.90	2.7	0.2	5	2	14
RH (%)	59	46	0.76	0.76	19	−13	−20	−21	27
Radiation (W·m2)	472	619	0.91	0.86	195	64	62	14	32
Dew Point (°C)	7.6	6.0	0.59	0.49	4.3	−2.6	−42	−39	52
	June 2010
Wind Speed (m·s−1)	1.7	2.3	0.67	0.58	1.4	0.6	86	43	65
Wind Direction (deg)	212	214	0.65	0.42	96	0.5	212	2	30
Temperature (°C)	20.1	20.1	0.89	0.91	3.0	0.2	3	3	13
RH (%)	61	51	0.74	0.78	17	−11	−11	−13	23
Radiation (W·m2)	463	619	0.95	0.93	162	71	61	17	28
Dew Point (°C)	10.9	10.1	0.63	0.53	3.2	−0.9	8	−7	24

^aIOA: index of agreement (Willmott et al., 1981);

^br: correlation coefficient;

^cRMSE: root mean square error;

^dMB: mean bias;

^eMNB: mean normalized bias;

^fNMB: normalized mean bias;

^gNME: normalized mean error.