"Alan White" wrote in message
...
On Sun, 10 Dec 2006 16:41:07 -0000, "Will Hand"
wrote:

As promised I have uploaded an Excel spreadsheet that will allow you to
estimate
a wind speed and gust at any height up to 50 metres above ground level given
a
wind speed and gust measurement at one height.
...

I still have a problem here.

The wind vane and anemometer are mounted on a mast lashed to a chimney
which is on the centre line of the house. There's a difference in height
of about three metres between the front of the house and its rear. From
where do I measure the height of the anemometer?

Does it matter?


Alan I would suggest height above ground just below the mast. I suspect your
readings will vary as to whether the wind is going up or down the slope. I have
a similar problem but less extreme.

Will.
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