keyable

Dear Mark, Thank you very much for your response! I pretty much understood everything. Could you please explain in more details what do you mean by this sentence: "Further, doing vertical-shear extrapolation from a {10,40}m pair up to 105m is more uncertain (avoid it in this case), especially if the terrain is not uniform/flat" ? By the way my investigated territory is on the ridge. It is full of hills, but there is big advantage for this territory, that there are NO TREES and building nearby. It is like many hills (with some flat parts) and smooth surface. Cheers! Lado

Hello! I have Meteo tower 40m in height. On my meteo towerI have two anemometers one at height 10m and second at height of 40m. Near second anemometer I have wind vane for measuring wind direction. I use 9200-Plus NRG logger for my data logging. My goal is to build a wind farm with Vestas V90-3MW (hub height is 105m). So I take data ONLY FROM 40m wind vane and anemomenter, then with the help of WAsP software I predict wind statistical data for the height of 105m. Could anybody tell me if my method of mesurments are correct and how can i improve it? Also does it give me accurate data from 40m to 105m? Thank you!