Talk:Wet-bulb temperature

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[edit] Is it the same as dewpont temperature

Is it the same as dewpont temperature User:Tikai 13:20, 23 May 2007 (UTC)

Generally not. It is at 100 percent relative humidity. If the air is less than saturated, the wet bulb temperature is higher than the dew point. - Ac44ck (talk) 02:25, 25 March 2008 (UTC)
Should this explanation be added to the article? At the very least, wet-bulb temperature and dew point seem to be related terms. Vagary (talk) 03:22, 25 March 2008 (UTC)

[edit] WikiProject class rating

This article was automatically assessed because at least one WikiProject had rated the article as stub, and the rating on other projects was brought up to Stub class. BetacommandBot 10:05, 10 November 2007 (UTC)

[edit] Jargon

This article explains how to measure wet-bulb temperature and one particular use of that measurement, but doesn't say what the wet-bulb temperature could be interpreted to mean, which should be the first priority in a general-purpose encyclopaedia. Based on my lay reading of this article and dry-bulb temperature, as well as usages at deep lake water cooling and snow cannon, I could conclude that it is one of:

  • An intermediate measurement in the calculation of humidity.
  • A "climate variable" that might be important for "human comfort and building energy efficiency"
  • The temperature that water evaporates at under other environmental conditions
  • The temperature of something with water evaporating off it under other environmental conditions
  • The temperature at which water produces ice crystals under other environmental conditions

The article should explain what the impact of wet-bulb temperature is and how it varies relative to the more commonly-understood dry-bulb temperature. Vagary (talk) 03:34, 25 March 2008 (UTC)

Thanks for elaborating.
  • The article on psychrometrics contains more info on how close a wet bulb thermometer might be to reporting an adiabatic (or, more technically, isobaric) wet-bulb temperature.
  • The details to calculate the dew point from the wet-bulb temperature (as opposed to the other way around) seem amiss here.

-Ac44ck (talk) 05:16, 25 March 2008 (UTC)

The practical considerations section is exactly what I was talking about, great job writing it! I rearranged the lead so readers aren't hit with terms like "adiabatically" right away. Vagary (talk) 16:59, 28 March 2008 (UTC)

[edit] Changed isobaric to thermodynamic

The term "isobaric wet-bulb" seems to be used mostly by meteorologists.

Results 1 - 10 of about 134 for "isobaric wet-bulb temperature"

The term "thermodynamic wet-bulb" seems to be more popular:

Results 1 - 10 of about 894 for "thermodynamic wet-bulb temperature".

-Ac44ck (talk) 22:26, 7 April 2008 (UTC)

[edit] Tw as a function of T and Td

Dr. Eric A Anderson (1968) gives an equation for estimating wetbulb temperature (Tw) from drybulb (T) and dewpoint (Td) temperatures, all in degrees F:

Tw = T - (T - Td)*(0.12 + 0.008*T)

source link: http://snow.ag.uidaho.edu/Climate/Reference_materials/Atmos_formulas.html —Preceding unsigned comment added by 199.46.245.232 (talk) 20:04, 7 May 2008 (UTC)