Journal of Wind Energy

Research Article

Statistical and Spectral Analysis of Wind Characteristics Relevant to Wind Energy Assessment Using Tower Measurements in Complex Terrain

Table 2

Monthly average wind speed and air density based on 2003 to 2008 composite datasets for the 50 m towers and February 2007 to March 2008 Stone Cabin Tower data.


Tower parameter	Jan.	Feb.	Mar.	Apr.	May.	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual average

Tonopah 24NW
(m/s), 50 m	4.97	5.44	5.85	6.52	6.22	6.35	5.25	5.08	5.30	5.41	5.04	4.53	5.49
(m/s), 30 m	4.69	5.09	5.50	6.13	5.83	5.94	4.90	4.79	5.01	5.12	4.79	4.33	5.17
(m/s), 10 m	4.33	4.73	5.11	5.73	5.45	5.56	4.62	4.48	4.69	4.75	4.43	4.04	4.82
(kg/m³)	1.084	1.071	1.053	1.038	1.016	0.997	0.985	0.994	1.015	1.039	1.081	1.086	1.036
Kingston 14SW
(m/s), 50 m	3.73	4.21	4.81	5.51	4.93	5.27	4.69	4.66	4.35	4.22	3.45	3.99	4.53
(m/s), 30 m	3.25	3.71	4.30	4.95	4.44	4.78	4.26	4.11	3.80	3.64	2.98	3.48	4.01
(m/s), 10 m	2.81	3.20	3.81	4.34	3.94	4.22	3.80	3.69	3.44	3.29	2.70	3.06	3.56
(kg/m³)	1.059	1.045	1.029	1.015	0.995	0.977	0.964	0.972	0.992	1.015	1.013	1.058	1.055
Luning 7W
(m/s), 50 m	3.74	4.14	3.68	4.30	4.48	4.45	3.81	3.32	3.51	3.94	3.69	4.75	3.96
(m/s), 30 m	4.02	4.12	4.09	4.53	4.33	4.23	3.66	3.52	3.59	4.01	3.80	4.68	4.03
(m/s), 10 m	3.51	3.63	3.69	4.03	3.82	3.73	3.21	3.13	3.20	3.48	3.27	4.00	3.54
(kg/m³)	1.108	1.092	1.072	1.057	1.033	1.015	1.000	1.010	1.032	1.067	1.093	1.105	1.055
Luning 5N
(m/s), 50 m	3.11	3.77	4.14	4.63	4.50	4.40	3.69	3.51	3.41	3.63	3.26	3.81	3.81
(m/s), 30 m	2.80	3.46	3.83	4.33	4.20	4.10	3.42	3.24	3.15	3.25	2.91	3.43	3.49
(m/s), 10 m	2.52	3.00	3.48	3.88	3.73	3.60	2.99	2.06	2.86	2.90	2.70	3.05	3.12
(kg/m³)	1.080	1.067	1.048	1.036	1.015	1.000	0.983	0.991	1.011	1.043	1.068	1.079	1.033
Stone Cabin
(m/s), 80 m	5.123	5.562	5.525	5.752	5.883	5.667	5.061	3.985	4.514	6.463	4.536	4.988	5.255
(m/s), 60 m	6.034	6.243	5.945	6.125	6.287	5.955	5.461	3.935	5.208	6.757	4.542	5.619	5.676
(m/s), 40 m	5.652	5.908	5.661	5.751	5.883	5.673	5.163	3.793	4.683	6.255	4.197	5.352	5.445
(m/s), 10 m	4.460	4.875	4.588	4.717	4.918	4.338	3.919	2.517	3.004	4.468	3.236	4.201	4.104
(kg/m³)	0.982	0.962	0.945	0.936	0.941	0.962	0.984	0.997	1.025	1.025	1.014	1.008	0.982