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Direction shown by smoke drift but not by wind vanes 2 Light breeze 4–6 knots 4–7 mph 6–11 km/h 1.6–3.3 m/s 1–2 ft 0.3–0.6 m Small wavelets still short but more pronounced; crests have a glassy appearance but do not break Wind felt on face; leaves rustle; wind vane moved by wind 3 Gentle breeze 7–10 knots 8–12 mph 12–19 km/h
California wind resources. Wind power in California had initiative and early development during Governor Jerry Brown's first two terms in the late 1970s and early 1980s. [1] [2] The state's wind power capacity has grown by nearly 350% since 2001, when it was less than 1,700 MW.
The state's wind power capacity has grown by nearly 350% since 2001, when it was less than 1,700 MW. In 2016, wind energy (including that supplied by other states) supplied about 6.9% of California's total electricity needs, or enough to power more than 1.3 million households.
The wind profile power law is a relationship between the wind speeds at one height, and those at another. ... Class 10 m (33 ft) 30 m (98 ft) 50 m (164 ft)
Turbine wind class is just one of the factors needing consideration during the complex process of planning a wind power plant. Wind classes determine which turbine is suitable for the normal wind conditions of a particular site. Turbine classes are determined by three parameters - the average wind speed, extreme 50-year gust, and turbulence. [12]
The Turner stability class or Turner stability index is a classification of atmospheric stability over an interval of time based on measurements of surface-level wind speed and net solar radiation. Classes range from 1 (most unstable) to 7 (most stable).
Knowing the wind sampling average is important, as the value of a one-minute sustained wind is typically 14% greater than a ten-minute sustained wind. [16] A short burst of high speed wind is termed a wind gust ; one technical definition of a wind gust is: the maxima that exceed the lowest wind speed measured during a ten-minute time interval ...
The lowest official classification used in the North Indian Ocean is a depression, which has 3-minute sustained wind speeds of between 17 and 27 kn (20 and 31 mph; 31 and 50 km/h). [21] Should the depression intensify further then it will become a deep depression, which has winds between 28 and 33 kn (32 and 38 mph; 52 and 61 km/h). [ 21 ]