Project: Norwegian Wind Atlas		Customer: NVE/ENOVA		Revision: 2.0.0
	Scenario: Climatology		User: VECTOR AS		Date: 28.04.01 17:15

+	Climatology Lista

		Averaging periods
		The wind climate displays large seasonal variations. The climatology is presented for different averaging periods.
		Averaging period: Autumn Year Spring Summer Autumn Winter
		Key climatology data
		The wind climatology is presented graphically as a wind rose, giving the average wind speed distribution according to velocity intervals and wind directions. The velocity intervals are divided in 9 bins, where every occurrence of wind speeds above 18 m/s has been lumped in the last bin. Incoming wind directions are divided in 12 sectors, where the first sector is centred around north.

				site name	Lista
				measurement period	1975 - 1996
				x - position longitude	6.5683
				y - position latitude	58.1100
				co-ordinate system	2
				anemometer height	10.0
				number of sectors	12
				number of bins	12
				total records	-
				average wind speed	7.1

Fig 1.

Wind rose Lista. Averaging period: Autumn

	The wind climatology presented in the below table, gives the accumulated frequency of occurrence and the average wind speed for each sector.

	.	N	NNE	ENE	E	ESE	SSE	S	SSW	WSW	W	WNW	NNW
	freq	0.041	0.033	0.072	0.147	0.157	0.041	0.044	0.052	0.072	0.081	0.179	0.075
	mean	3.3	3.4	4.9	6.1	6.8	7.6	7.9	8.7	9.0	9.4	8.2	6.9

Table 2.

Frequency (-) and average wind speed (m/s) versus sector.