[ncl-talk] wrf_cape_2d errors

[Guido Cioni]

Hey Kai,
you should ask the WRF mailing list, since they may have more suggestions.
I used that function more than once and always got some strange error with large dataset. Mine was slightly different than yours, but still we could give it a try...

1) Did you try calling the function with less vertical levels? I had 150 levels in my output data and wrf_cape_2d was working only when I passed a subset of the data, like p(:,0:130,:,:). Try also to subset in time and horizontal dimensions to see if the problem resides in the size. 

2) Otherwise, can you do a printVarSummary and printMinMax of the variables that you are using so that we can see what could cause the error?

Cheers

Guido Cioni
http://guidocioni.altervista.org <http://guidocioni.altervista.org/> 




> Il giorno 10 set 2016, alle ore 04:34, Kai Zhang <kzkaizhang at gmail.com> ha scritto:
> 
> Dear NCL support,
> 
> I am currently using function wrf_cape_2d to calculate CIN and CAPE. But I cannot stop getting errors:
> "capecalc3d: Outside of lookup table bounds. prs,thte=   925.000000000000     856.034700407579"
> 
> I am sure that I got units for each variable correctly. 
> 
> It is weird that, if I change "p (unit: Pa)" to "p (unit: hPa)", I can get it run smoothly. But the CIN and CAPE calculated are obviously wrong.
> 
> Do you know why?
> 
> 
> 
> Thanks a lot for your help!
> 
> Best,
> 
> Kai
> 
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