[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[GEMPAK #GCC-478932]: GEMPAK - Running Gempak

> Hey Steve,
> 
> Thanks for all you help. I was able to get gempak running on a different 
> computer. I have some questions about NSharp though. Is there a place to find 
> out how the indicies are calculated? When it calculated CAPE from a mixed 
> layer parcel, is it a low-level (sfc-500m) average parcel? Also is the 
> program limited to 500 points?
> 
> Aloha,
> Dale

Dale,

The NSHARP program CAPE is controlled by the "PARCEL" widget, which defaults to 
the most unstable level,
and not a low level average. You can click on the "PARCEL" widget, then select 
"Mean Mixing Layer"
to recalculate the values shown in the right panel using thattype of layer. You 
may need to click on the RESET
widget to redraw the parcel white dashed line afterwards if you want to remove 
the previous line from the display.

The SNPROF prgram gives you control over the CAPE and CAPV layer depth for 
computation using the "!"
qualifier as described in the STNDEX help as well as in Appendix A 
($GEMPAK/txt/apx/parms.apx)
also available here:
http://www.unidata.ucar.edu/cgi-bin/gempak/manual/apxA_index

To specify a 500 meter layer, you would specify STNDEX=CAPE!500 or CAPV!500 
(note that 500m is the default
if you simple set STNDEX=CAPE or CAPV.

The maximum number of vertical levels in a GEMPAK upper air file is defined at 
compile time as 500 in the
binary distributions I provide. You would have to build your own distribution 
from source and change 
LLMXLV in $GEMPAK/include/grmprm.h and GEMPRM.PRM to configure for more levels.

Steve Chiswell
Unidata User Support
> 
> ----- Original Message -----
> From: Unidata GEMPAK Support <address@hidden>
> Date: Wednesday, September 19, 2007 9:51 am
> Subject: [GEMPAK #GCC-478932]: GEMPAK - Running Gempak
> To: address@hidden
> Cc: address@hidden
> 
> > > Institution: University of Hawaii
> > > Package Version: GEMPAK5.10.2
> > > Operating System: SUNOS Release 5.8 Generic_117350-39
> > > Hardware Information: SUNW, Ultra-5-10; Sparc; Sun4u
> > > Inquiry: Hello,
> > >
> > > I have downloaded and unzipped GEMPAK on to my computer and have
> > followed the instalation guide, but I am still having trouble
> > running the software. I am hoping to run NSharp on archived
> > hurricane dropsondes so I don't think I need to set up an LDM. Is
> > there someone who can assist me with getting GEMPAK running on my
> > computer? I would greatly appreciate it.
> > > Thanks!
> > > -Dale
> > >
> > >
> > >
> > >
> >
> > Dale,
> >
> > Since your Solaris version is older than the 5.9 and 5.10 systems
> > I have here to build binary
> > distributions, I suggest you download the source code distribution
> > if at all
> > possible and follow the instruction on building from source.
> >
> > After that, please let me know what trouble you are having, if it
> > is with individual
> > programs, configuration of your shell environment with Gemenviron
> > (or Gemenviron.profile),
> > and or having the appropriate Solaris runtime library environment.
> >
> > Steve Chiswell
> > Unidata User Support
> >
> > Ticket Details
> > ===================
> > Ticket ID: GCC-478932
> > Department: Support GEMPAK
> > Priority: Normal
> > Status: Closed
> >
> >
> 
> 


Ticket Details
===================
Ticket ID: GCC-478932
Department: Support GEMPAK
Priority: Normal
Status: Closed