[wxqc] Dew Point Error for CW6532 Tucson

[John James]

At 08:13 PM 10/3/2006, you wrote:
>
>The first thing that catches my eye is that you have the temp/dpt 
>attached to a 6 ft. sensor from your rooftop (not familiar with the 
>term parapet, so maybe I'm wrong). While this is fine for the 
>anemometer and even the rain gauge, the temperature/dpt sensors 
>should be located at 2m off the ground (5-6 feet). Very sharp 
>inversions can set up at night, on the order of 5-10F within 30-40 
>feet of the surface, especially where terrain and standing water 
>bodies are an issue. Likely you're sampling a "different airmass" 
>above your roofline than you would be closer to ground level.
>
>Evan
>
>

This brings up something I've been wrestling with a bit. I have a 
station up at my cabin that has been giving incorrect readings. I 
have a two story house and a somewhat wooded area in both front and 
back of my house. I don't have a very good clearing for wind, and was 
going to move the anemometer to the roof, but I don't think I'm 
getting good rainfall readings either due to the trees. I was 
thinking of moving the entire station to the roof, but knew that 
would alter the other readings. The unit is a Vantage Pro 2 Plus. I 
get the feeling I'm wrestling with which measurement I want to be 
more incorrect.

//John



------------------------------------------------------------------------------
John W. James
CW4661, CW4663
Web:  <http://www.jameshillfarm.com/>

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