Re: wind rotated ncl

From: Dennis Shea <shea_at_nyahnyahspammersnyahnyah>
Date: Wed Jan 29 2014 - 08:57:04 MST

All questions related to WRF should be sent to
wrfhelp@ucar.edu (cc'd here).

wrfhelp wrote the wrf_* functions and they are more familiar
with the WRF model output.

Good luck

On 1/29/14, 8:27 AM, Diego Saśl Carrió Carrió wrote:
> Dear All,
>
> I have an important doubt. I would like to get wind's field referenced at
> earth coordinates. I have found a way to achieve this:
>
> Uearth = U*cosalpha + V*sinalpha
> Vearth = V*cosalpha - U*sinalpha.
>
> , where:
> sinalpha = wrf_user_getvar(a,"SINALPHA",0)
> cosalpha = wrf_user_getvar(a,"COSALPHA",0)
> u = wrf_user_getvar(a,"ua",-1) ; u at mass point
> v = wrf_user_getvar(a,"va",-1) ; v at mass point
>
> But I see, there are another way to do this. Using this function:
>
> uvm = wrf_user_getvar(a,"uvmet",-1)
>
> The problem is uvm(0, , , , ) {component u} isn't the same than Uearth.
>
> I don't know what is the problem.
>
> Could you help me, please?
>
> Best Regards,
>
> Diego
>
>
>
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Received on Wed Jan 29 08:57:08 2014

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