Wind Speed Estimation: Incorporating Seasonal Data Using Markov Chain Models

Table 1

General statistical parameters in m/s for observed wind speed time series (Colorado, US, 20 m).

	Actual data (m/s)
	Winter	Spring	Summer	Autumn
Mean	6.36	4.28	3.58	4.11
St. deviation	4.60	3.23	1.74	3.01
Variance	21.13	10.41	3.02	9.07
Coef. of variation	72.29	75.44	48.60	73.23
Minimum	0.31	0.31	0.56	0.48
First quartile	2.84	2.25	2.35	2.09
Median	5.25	3.33	3.17	3.09
Third quartile	8.79	5.21	4.46	5.11
Maximum	27.15	23.86	11.49	20.12
Weibull shape Parameter (ML)	1.437	1.493	2.188	1.507
Weibull shape Parameter (WAsP)	1.371	1.074	1.769	1.114
Weibull scale Parameter (ML)	7.021	4.785	4.053	4.600
Weibull scale Parameter (WAsP)	6.900	3.936	3.790	3.806