[gradsusr] how to calculate roughness length in grads...

Eric Altshuler ela at cola.iges.org
Mon Jun 9 15:44:16 EDT 2014

Hi Kishore, 

Roughness length is not a quantity that can be calculated in grads (or any other data analysis program). It is a property of the land or water surface that's used in the PBL parameterization. Most models provide roughness length as an output variable. 

Best regards, 

Eric L. Altshuler 
Research Scientist 
Center for Ocean-Land-Atmosphere Studies 
253 Research Hall, Mail Stop 6C5 
George Mason University 
4400 University Drive 
Fairfax, VA 22030 USA 

E-mail: ela at cola.iges.org 
Phone: (703) 993-5725 
Fax: (703) 993-5770 

----- Original Message -----
From: "Kishore Ragi" <kishoreragi at gmail.com> 
To: "GrADS Users Forum" <gradsusr at gradsusr.org> 
Sent: Monday, June 9, 2014 10:12:55 AM 
Subject: [gradsusr] how to calculate roughness length in grads... 

Dear grads users, 

Does anyone have grads script to calculate roughness length? 

Thank you 


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