[Ncep.list.nems.announce] nems commit

[Jun Wang - NOAA Affiliate]

Committed revision 71595

On Tue, Mar 8, 2016 at 3:24 PM, Jun Wang - NOAA Affiliate <jun.wang at noaa.gov
> wrote:

> Dear all,
>
> I have some changes ready to commit to NEMS trunk. The changes are:
>
> 1. Current NEMS code can restart from history files, but digital filter
> does not work for this case. The time in GFS clock/alarm is updated to
> allow digital filter work for restart
> 2. Ruiyu found that the sigma level used for cloud initialization needs
> vertical coordicate information ak5 and bk5, but current gsm phys does not
> have ak5,bk5, instead, it uses the ratio of vertical level to compute sigma
> level, which causes reduce PBL clouds. A subroutine is added to read the
> vertical coordinate from grid point model level file, and used to compute
> the sigma level for cloud initialization.
>
> 3. high frequency output is limited only for cold start
>
> NEMS ticket is:
>
> https://svnemc.ncep.noaa.gov/trac/nems/ticket/152
>
> corresponding gsm ticket is:
>
> https://svnemc.ncep.noaa.gov/trac/gsm/ticket/82
>
> The nems branch is at:
>
> https://svnemc.ncep.noaa.gov/projects/nems/branches/jun/dfi_rsthst
>
> The gsm regression test results are generated, the regression test passed
> on both theia and wcoss. There is no impact on nmm.
>
> Please let me know if you have any questions. Thanks.
>
> Jun
>
>
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