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Re: [LacrosseWS] Ground mount or Roof mount?

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  • John Liss
    Or just put it where you want to know the wind speed. After all it is relative.
    Message 1 of 6 , May 4, 2013
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      Or just put it where you want to know the wind speed. After all it is relative.

      On May 4, 2013, at 6:36 PM, "Robin Gilks" <weather@...> wrote:

      >
      >> Hello,
      >> I have had many different weather stations through-out the years ranging
      >> from Wired Oregon Scientific to basic Walmart wireless weather station.
      >> They get old and soon enough a cup from the anemometer cracks or breaks
      >> off. So, replace units with something new. My question is how accurate
      >> is mounting the whole unit on a mast in the yard compared too roof
      >> mounting? I have always had them mounted off a mast from a chimney
      >> mount but a friend of mine has his on a little mast in his yard. What
      >> do you suggest and which is or accurate?
      >>
      >> Jeffrey
      >
      > As a rule of thumb to avoid turbulent air you need to make sure the sensor
      > measuring wind speed is at least 20ft (6m) higher than anything else for
      > at least 300ft (100m) all round it.
      >
      > This is one of the basic rules used for successful operation of a small
      > wind turbine where you want smooth non-turbulent air rather than
      > responding to the immediate micro climate around trees and the house.
      >
      > Once you satisfy those conditions you'll be amazed at how stable the wind
      > direction generally is and how few gusts there are!!
      >
      > --
      > Robin Gilks
      >
      >
      >
      >
      > ------------------------------------
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