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[GEMPAK #CAS-776545]: CINS GEMPAK



As far as I can tell, the use of CINS dates to to 1989 when the routine was 
first added from pscafe.f.  We're talking about old Fortran programs developed 
since 1984, where every parameter source code file name is 6 letters long, ps, 
then 4 letters for the parameter.  I think CINS was chosen to mean CIN at the 
surface, but that's just a guess my me.

GEMPAK does not use CIN or CINH, but should conform to the WMO standard CIN 
which the NWS uses. So it's good that you brought this up, it seems a git 
strange to have all or most of the use of CINS for Convective Inhibition tied 
to GEMPAK source code and manuals published from parameters appendices.  

Michael




> In my opinion, the used CINS is equivalent to ML CIN!?
> 
> 
> 2013/11/5 Daniel Wünsch <address@hidden>
> 
> > Hi Michael,
> >
> > thanks for your answer. But when it is the Convective Inhibition the
> > official abbreviation should be CIN or CINH (
> > http://en.wikipedia.org/wiki/Convective_inhibition). My problem is, I use
> > temps parameter from the site
> > http://weather.uwyo.edu/upperair/sounding.html (based on GEMPAK) within
> > my bachelor thesis and my professor asked me about the 'S' in CINS :/
> >
> > Daniel
> >
> >
> > 2013/11/5 Unidata GEMPAK Support <address@hidden>
> >
> >> Hi Daniel,
> >>
> >> CINS is the term used in GEMPAK for Convective Inhibition, typically just
> >> called CIN.
> >>
> >> From http://www.unidata.ucar.edu/cgi-bin/gempak/manual/apxA_index
> >>
> >> CINS - Convective Inhibition
> >>
> >>         CINS = GRAVTY * SUMN ( DELZ * ( TP - TE ) / TE )
> >>                SUMN = sum over sounding layers from top of the mixed
> >>                       layer to LFCT for which ( TP - TE ) is less
> >>                       than zero.
> >>                DELZ = incremental depth
> >>                TP   = temperature of a parcel from the lowest
> >>                       !500 m of the atmosphere, raised dry
> >>                       adiabatically to the LCL and moist
> >>                       adiabatically thereafter
> >>                TE   = temperature of the environment
> >>
> >> CINV - CINS computed by using virtual temperature
> >>
> >>         CINV = GRAVTY * SUMN ( DELZ * ( TVP - TVE ) / TVE )
> >>                SUMN = sum over sounding layers from top of the mixed
> >>                       layer to LFCV for which ( TVP - TVE ) is less
> >>                       than zero.
> >>                DELZ = incremental depth
> >>                TVP  = virtual temperature of a parcel from the
> >>                       lowest !500 m of the atmosphere, raised
> >>                       dry adiabatically to the LCL and moist
> >>                       adiabatically thereafter
> >>                TVE  = virtual temperature of the environment
> >>
> >>
> >>
> >> -Michael James
> >> Unidata
> >>
> >> > Hello,
> >> >
> >> > within your software GEMPAK one can find the parameter CINS. My question
> >> > is: What stands the 'S' for?
> >> >
> >> > Thanks for your answer :)
> >> >
> >> > Best regards
> >> > Daniel
> >> >
> >> >
> >>
> >> Ticket Details
> >> ===================
> >> Ticket ID: CAS-776545
> >> Department: Support GEMPAK
> >> Priority: Normal
> >> Status: Open
> >>
> >>
> >
> 
> 


Ticket Details
===================
Ticket ID: CAS-776545
Department: Support GEMPAK
Priority: Normal
Status: Open