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post #15 of Old 02-26-2019
SanderO
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Re: ambient wind vs true wind

Current has no practical measurable impact of wind.

If you are measuring wind on a not stable platform... such as a boat... your wind speed measurement will sum the vectors of

current speed and direction
boat speed and direction through the water

a stable platform reads the instantaneous wind speed which likely is not constant in speed and direction

When a weather service reports wind speed and direction... they will report an AVERAGE usually noting gusts.

I have not heard the term *ambient wind* used and other than meaning some sort of average... as true is an instantaneous measurement and not reliable because of variations over time... the reported wind term may be *ambient*.

wind... YMMV

pay attention... someone's life depends on it
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