Re: [Paddlewise] Taking Water Temps

From: Michael Daly <michaeldaly_at_rogers.com>
Date: Sun, 7 Jul 2002 23:27:24 -0400
From: "WhiteRabbit" <whiterabbit_at_empowering.com>

> Instead of wind chill the proper term is wet bulb depression.   

These are two very different phenomena.  

Wind chill refers to the transfer of heat from skin to air - the 
more air flow, the greater the heat removal.  Wind chill temperatures
are calibrated to show the equivalent temperature of still air.
My analogy to the effect of water flow is reasonable.

Wet bulb temperatures indicate the effect of evaporation on apparent 
temperature - this also is affected by relative humidity, I think.

A number of folks have commented on evaporation and wind chill - I wonder
if other regions/countries use a definition different than that used in 
Canada and the US?

Mike

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Received on Sun Jul 07 2002 - 20:27:15 PDT

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