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Old 26th Mar 2016, 00:33
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Intruder
 
Join Date: May 2000
Location: Seattle
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From the ASOS (Automated Surface Observing System) Users Guide, Sec 3.2:
Before ASOS, airport wind sensors were generally exposed 20 feet above ground level. With modern, highperformance aircraft, this standard no longer applies. Now, current federal standards for siting meteorological equipment specify (with some variance permitted) a height of 10 meters (32.8 feet). Typical ASOS wind sensor heights are 33 feet or 27 feet, depending on local site-specific restrictions or requirements.
Point to Ponder: Why are airport wind socks at 5 meters above the ground and airport anemometers at 10 meters above ground level?
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