Re: Cone factor argument in wrf_uvmet function

Hi Jonathan,

This has been forwarded to wrfhelp@ucar.edu

Good luck

On 06/27/2011 01:31 PM, jonathan meyer wrote:
> Hello,
>
> I am attempting to transform grid relative winds from several various
> WRF simulations utilizing different map projections to Earth relative
> wind components. I would like to utilize the wrf_uvmet function within
> NCL (
> http://www.ncl.ucar.edu/Document/Functions/Built-in/wrf_uvmet.shtml ).
> NCL documentation on this function is a rather vague regarding the
> description of the last argument needed.
>
> (/cone
> /A scalar value. The cone factor used in the model domain projection.)
>
> What is this cone factor argument, where do I find the cone factors for
> each of my WRF simulations?
>
> Also, I am not sure if the example at the end of the function
> description page was purposefully cutout but it seems to be missing
> quite a bit below where the page ends. In fact, the example for the
> wrf_uvmet function doesn't even include the function itself.
>
> As it reads:
>
> *Example 1*
>
> The function *wrf_user_getvar*
> <http://www.ncl.ucar.edu/Document/Functions/WRF_arw/wrf_user_getvar.shtml>,
> (available in the $NCARG_ROOT/lib/ncarg/nclscripts/wrf/WRFUserARW.ncl
> script) can also be used to calculate many diagnostics in one step.
>
> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
> load "$NCARG_ROOT/lib/ncarg/nclscripts/wrf/WRFUserARW.ncl"
>
> a = *addfile* <http://www.ncl.ucar.edu/Document/Functions/Built-in/addfile.shtml>("wrfout_d01_2000-01-24_12:00:00.nc","r")
>
> time = 1
> uvm = *wrf_user_getvar* <http://www.ncl.ucar.edu/Document/Functions/WRF_arw/wrf_user_getvar.shtml>(a,"uvmet",time)
> ; umet and vmet averaged to mass points
> ; This is a 4D array where
> ; uvm(0,:,:,:) is umet, and
> ; uvm(1,:,:,:) is vmet, and
> ; This function rotate winds to earth coord.
>
>
> I would greatly appreciate any thoughts on where to find what scalar value my 'cone' argument should be, as well as any comments on the example that seems to be missing the pertinent information to describe the function.
>
>
> Thanks in advance,
>
> Jon Meyer
>
> Utah State University
>
> Department of Plants, Soils and Climate
>
>
>
> _______________________________________________
> ncl-talk mailing list
> List instructions, subscriber options, unsubscribe:
> http://mailman.ucar.edu/mailman/listinfo/ncl-talk

-- 
======================================================
Dennis J. Shea                  tel: 303-497-1361    |
P.O. Box 3000                   fax: 303-497-1333    |
Climate Analysis Section                             |
Climate & Global Dynamics Div.                       |
National Center for Atmospheric Research             |
Boulder, CO  80307                                   |
USA                        email: shea 'at' ucar.edu |
======================================================
_______________________________________________
ncl-talk mailing list
List instructions, subscriber options, unsubscribe:
http://mailman.ucar.edu/mailman/listinfo/ncl-talk