Pseudoequivalent potential temperature: Difference between revisions

Revision as of 13:11, 1 May 2013

pseudoequivalent potential temperature

The temperature a sample of air would have if it were expanded by a pseudoadiabatic process to zero pressure and then compressed to a reference pressure of 1000 hPa by a dry-adiabatic process.

This quantity is conserved in a pseudoadiabatic process and is given approximately by

where T is the temperature, p is the pressure, T_c is the condensation temperature (obtainable from the dewpoint formula) and r_v is the water vapor mixing ratio. When r_v = 0, θ_ep = θ, the potential temperature.

Bolton, D. 1980. The computation of equivalent potential temperature. Mon. Wea. Rev.. 108. 1046–1053.

INDEX
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
0
1
2
3
4
5
6
7
8
9

@@ Line 9: / Line 9: @@
    </div>
-<div class="definition"><div class="short_definition">The [[temperature]] a sample of air would have if it were  expanded by a [[pseudoadiabatic process]] to zero [[pressure]] and then compressed to a reference  pressure of 100 kPa by a [[dry-adiabatic process]].</div><br/> <div class="paragraph">This quantity is conserved in a pseudoadiabatic process and is given approximately by  <div class="display-formula"><blockquote>[[File:ams2001glos-Pe59.gif|link=|center|ams2001glos-Pe59]]</blockquote></div> where ''T'' is the temperature, ''p'' is the pressure, ''T''<sub>''c''</sub> is the [[condensation temperature]] (obtainable  from the [[dewpoint formula]]) and ''r''<sub>''v''</sub> is the [[water vapor]] mixing ratio. When ''r''<sub>''v''</sub> = 0, &#x003b8;<sub>''ep''</sub> = &#x003b8;, the  [[potential temperature]].</div><br/> </div><div class="reference">Bolton, D. 1980. The computation of equivalent potential temperature. Mon. Wea. Rev.. 108. 1046&ndash;1053. </div><br/>
+<div class="definition"><div class="short_definition">The [[temperature]] a sample of air would have if it were  expanded by a [[pseudoadiabatic process]] to zero [[pressure]] and then compressed to a reference  pressure of 1000 hPa by a [[dry-adiabatic process]].</div><br/> <div class="paragraph">This quantity is conserved in a pseudoadiabatic process and is given approximately by  <div class="display-formula"><blockquote>[[File:ams2001glos-Pe59.gif|link=|center|ams2001glos-Pe59]]</blockquote></div> where ''T'' is the temperature, ''p'' is the pressure, ''T''<sub>''c''</sub> is the [[condensation temperature]] (obtainable  from the [[dewpoint formula]]) and ''r''<sub>''v''</sub> is the [[water vapor]] mixing ratio. When ''r''<sub>''v''</sub> = 0, &#x003b8;<sub>''ep''</sub> = &#x003b8;, the  [[potential temperature]].</div><br/> </div><div class="reference">Bolton, D. 1980. The computation of equivalent potential temperature. Mon. Wea. Rev.. 108. 1046&ndash;1053. </div><br/>
 </div>