[ncl-talk] pres_hybrid_jra55

[Dennis Shea]

Hi Jerry,

http://jra.kishou.go.jp/JRA-55/document/JRA-55_handbook_TL319_en.pdf
http://jra.kishou.go.jp/JRA-55/index_en.html

===
NCAR's Climate Analysis Section's Climate Data Guide has information
contributed by a JRA expert: Shinya Kobayashi (Japan Meteorological Agency)

https://climatedataguide.ucar.edu/climate-data/jra-55

====
I think I created the 'pres_hybrid_jra55' script and the '
JRA55.hybrid_levels.nc' file based on a request by NCAR's Data Support
Section.

I am not sure what you mean by: "Do you have suggestions before I try it?"
===

%> ncdump -h   JRA55.hybrid_levels.nc

==
netcdf JRA55.hybrid_levels {
dimensions:
        ilev = 61 ;
        lev = 60 ;
variables:
        double P0 ;
                P0:units = "Pa" ;
                P0:long_name = "reference pressure" ;
        double ilev(ilev) ;
                ilev:formula = "p(k) = ai(k) + bi(k)*P0" ;
                ilev:units = "Pa" ;
                ilev:long_name = "hybrid level at interfaces" ;
        double lev(lev) ;
                lev:formula = "p(k) =
exp[(1/delp(k))*[p(k-0.5)*log(p(k-0.5)) - p(k+0.5)*log(p(k+0.5))]-1]" ;
                lev:standard_name =
"atmosphere_hybrid_sigma_pressure_coordinate" ;
                lev:units = "Pa" ;
                lev:long_name = "hybrid level at midpoints" ;
        double hyai(ilev) ;
                hyai:long_name = "hybrid A coefficient at layer interfaces
(half levels)" ;
        double hybi(ilev) ;
                hybi:long_name = "hybrid B coefficient at layer interfaces
(half levels)" ;

// global attributes:
                :creation_date = "Thu Mar 12 08:37:10 MDT 2015" ;
                :Conventions = "None" ;
                :netCDF_type = "Classic" ;
                :source_info = "
http://rda.ucar.edu/datasets/ds628.0/docs/JRA-55.handbook_TL319_en.pdf" ;
                :title = "JRA55: hybrid interface coefficients and nominal
pressure levels"

==============

Regards
D

On Mon, Jan 29, 2018 at 9:13 AM, Potter, Gerald Lee.
(GSFC-606.2)[UNIVERSITIES SPACE RESEARCH ASSOCIATION] via ncl-talk <
ncl-talk at ucar.edu> wrote:

> Hello,
>
> I'm interested in trying the pres_hybrid_jra55 script. Do you have
> suggestions before I try it. Also do you have the hyai and hybi
> coefficients for JRA-55 available in netcdf? Specifically, I am interested
> in the file JRA55.hybrid_levels.nc that is mentioned in the example
> Pres_hybrid_jra55
>
>
> Thank you,
>
> Jerry
>
> --
> Gerald (Jerry) Potter
> NASA Goddard Space Flight Center
> e-mail gerald.potter at nasa.gov
> Office 28-S5241
> Phone 707-315-8314 <(707)%20315-8314>
> Department GSFC:606.2
>
>
> _______________________________________________
> 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/20180129/ec0359fd/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: JRA55.hybrid_levels.nc
Type: application/x-netcdf
Size: 3072 bytes
Desc: not available
URL: <http://mailman.ucar.edu/pipermail/ncl-talk/attachments/20180129/ec0359fd/attachment.nc>