Re: Calculating Richardson number

Kalim and Christopher,

I have been trying and looking for a NCL code to calculate the
Richardson number as well as EDR just to get a feel for turbulence,
etc... in the atmosphere. I've been running the WRF, but haven't been
able to make/find a successful code yet. No luck so far over here. Any
thoughts or help would be much appreciated. Have a great day!

Paul

Paul Suffern

Senior Meteorologist, National Transportation Safety Board

Email: paul.suffern@ntsb.gov

From: ncl-talk-bounces@ucar.edu [mailto:ncl-talk-bounces@ucar.edu] On
Behalf Of kalim ullah
Sent: Tuesday, June 26, 2012 6:01 AM
To: Christopher Steele (ENV)
Cc: ncl-talk@ucar.edu
Subject: Re: Calculating Richardson number

Dear Christopher,

You want to calculate local Richardson number let say:

Ri = ((9.8/T)*(dTdz))/(dUdz)^2

where T is potential temperature (K), gravitational accelration =9.8 ,
z is height, and wind speed:

U = (u*u + v*v)^(0.5)

If you need this I will send you acode of line.

good luck!

kalim ullah, Ph.D

Meteorology Department,

CIIT, Islamabad, Pakistan

--- On Tue, 6/26/12, Christopher Steele (ENV)
<Christopher.Steele@uea.ac.uk> wrote:

        
        From: Christopher Steele (ENV) <Christopher.Steele@uea.ac.uk>
        Subject: Calculating Richardson number
        To: "NCL Talk" <ncl-talk@ucar.edu>
        Date: Tuesday, June 26, 2012, 1:09 AM

        Hello,
        
        Are there any existing functions knocking around which calculate
the Richardson number from measurements of wind speed, temperature and
humidity?
        
        regards
        
        
        Christopher Steele,
        School of Environmental Sciences
        University of East Anglia
        Norwich
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Received on Tue Jun 26 05:23:57 2012