[ncl-talk] Regarding the calculation of heights

[Dennis Shea]

*Please submit all WRF Support questions to the WRF online user support
forum:*
http://forum.mmm.ucar.edu

You will need to create a user ID and password to post, but this should
only take a minute.

Thank you for your cooperation,
WRF Support Team
===================

Attached is the wrf_user.f90 code. You will have to find the answer in this
library.
NCL developers did not create this code.
=====================
Good luck



On Tue, Nov 12, 2019 at 8:35 AM Prashanth Bhalachandran via ncl-talk <
ncl-talk at ucar.edu> wrote:

> Sorry for reposting, can someone help me with this please?
> —————
>
> Dear NCL'ers,
> As we know WRF's outputs are originally in Eta coordinates. I am trying to
> understand the logic of how the height (z) is calculated in NCL's
> wrfusergetvar function.
>
>  z  = *wrf_user_getvar* <https://www.ncl.ucar.edu/Document/Functions/WRF_arw/wrf_user_getvar.shtml>(a, "z",time)        ; grid point height
>
> I expect that the height at each eta level should change as a function of x,y, and time.
>
> Can someone tell me how the above function calculates this z? Is there an hydrostatic assumption? In other words, is the z
>
> just geopotential height? Or is it the actual height itself?
>
> Thank you,
>
> Prashanth
>
>
> _______________________________________________
> ncl-talk mailing list
> ncl-talk at ucar.edu
> List instructions, subscriber options, unsubscribe:
> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.ucar.edu/pipermail/ncl-talk/attachments/20191112/d485d1ec/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: wrf_user.f90
Type: application/octet-stream
Size: 29657 bytes
Desc: not available
URL: <http://mailman.ucar.edu/pipermail/ncl-talk/attachments/20191112/d485d1ec/attachment.obj>