As part of this work, the effect of the vertical position of a vehicle-based anemometer on the ability to establish a reliable correspondence with track-based
wind measurements made at the reference height (19) was examined analytically.
The FWSC is extrapolated using the average actual
wind measurements obtained for the entire test period for each site, identified as [[alpha].sub.i], where subscript (i) represents the fixed wind shear coefficient for the ith site.
For
wind measurements, the site is somewhat sheltered by land from southerly directions but the marine wind from northerly sectors are properly represented.
To the knowledge of the authors, no analysis of the parameters of the Weibull distribution for other
wind measurement sites in Estonia is available in international journals.
In parallel, seven solar radiation monitoring sites were also maintained over the same period, each having
wind measurements typically at 5 m AGL.
As noted in the previous section, the on-board
wind measurement (velocity probe) was mounted sufficiently close to the vehicle (1.0 m above the front face of the trailer) that the wind-speed and angle measurements do not represent the true freestream conditions.
Dulas has a highly experienced wind team with over 20 years' knowledge of turbine siting,
wind measurement and planning to medium scale wind.
Another interesting feature of wind patterns in this area is that even relatively well-placed and fully open
wind measurement sites in the coastal area of the Gulf of Finland do not represent many important properties of marine winds [1,12,13].
The next stop will be Namibia, Africa, where the team expects to provide electricity to a small settlement in 2010 with a 1-kilowatt power kite and
wind measurement system.
GE believes Pentalum's
wind measurement technology is low-cost enough to drive mass market adoption, the target firm said.
Special
wind measurement systems need to be used to ensure that the trains remain on track even at high speeds and winds.
