12 February 2007

Wind Chill

Do we know whether the instruments being used are affected by wind chill? Or is it just my best guess?

6 comments:

Doc Ng said...

Wind chill temperature is the apparent temperature that our body feels. The wind chill factor DOES NOT affect the temperature sensor reading.


~ Doc Ng Out

ACA said...

Temp sensors are protected from the wind...

Nelsmart said...

Correct me if I'm wrong, wind chill can be calculated thus:
for F:
*35.74 +.6215T -35.75(V^.16)+.4275T(V^.16)=WCF
T= degrees F
V= wind speed
It is less time consuming to refer to a chart.

*this equation apears on p77 of Ahrens followed by an equation for C

Doc Ng said...

Yes wind chill can be calculated but again it is an APPARENT temperature that is based on the human body. Do temperature sensors generate heat like humans? No. So there is no heat lost by temperature sensor.

~Doc Ng

Nelsmart said...

Is there any signifigance to wind chill? Say for example an arctic air mass and high winds combine creating conditions condusive to frostbite.

Doc Ng said...

Nelsmart said...
"Is there any signifigance to wind chill? Say for example an arctic air mass and high winds combine creating conditions condusive to frostbite."

Good question...not when it comes to the weather contest in actual temperature prediction but yes there is a societal impact.