[gradsusr] Temperature Advection

[Eric Altshuler]

Dear Mohsen, 


At a given point, temperature advection is that portion of the local temperature tendency due to the wind blowing across the isotherms. The units can be determined from the equation: 


Tadv = -(U*dT/dx + V*dT/dy) 


Using the first term, U has dimensions of (length/time) and dT/dx has dimensions of (temperature/length), multiplication gives units of (temperature/time) which is what K/day is. 


Eric 

----- Original Message -----
From: "Mohsen Soltani" <soltani.clima at gmail.com> 
To: "GrADS Users Forum" <gradsusr at gradsusr.org> 
Sent: Saturday, May 25, 2013 11:59:33 AM 
Subject: Re: [gradsusr] Temperature Advection 

Dear Eric, 

Thank you very much for your help. The attached in the new map (warm 
air advection - k/day) based on the new display. 
But, you know, the unit of the map (K/day) is a little bizarre to me!! 
Would you please explain it to me in a few words? 
FYI: the unit of variables are in terms of: air temperature: K, and 
U&V wind components: m/s. 

Thanks again, 

Mohsen 

-- 
-- 
some are weather-wise some are otherwise! 
-- 
Best Wishes, 
(Mr.) Mohsen Soltani 
Climatology Grad Student (M.Sc.), 
Faculty of Geography, University of Tehran, Tehran, Iran 
Tel: (+98) 9119772934 
e-mail: soltani.clima at gmail.com 

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