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

Table 4

Overall wind speed and direction characteristics, turbulence intensity, and coefficient of variations for the wind speed for time scales larger than one month.

Tower	Mean wind speed (m/s)	Mean wind direction	𝜎 (m/s)	TI𝑇<10	TI𝑇>10	𝑘	𝑐
Kingston 14SW	4.48	162	3.37	0.20	0.75	1.415	4.82
Tonopah 24NW	5.49	223	3.41	0.17	0.62	1.703	6.04
Luning 7W	3.96	191	3.06	0.25	0.77	1.346	4.39
Luning 5N	3.77	185	3.03	0.25	0.80	1.335	3.99
Stone Cabin (60 m)	5.24	165	3.66	0.18	0.66	1.667	5.92