20001210: 20001202: Gempak

Diana,

The entire software package installed is 250-300 Megabytes.

I could create a binary tarfile of just what is needed to run snlist
(and presumably, you need to get the data into GEMPAK format somehow),
providing you are running an operating system that we have here.

If you have to get your data into GEMPAK format, then you can euther do that 
with 
snedit, or I can provide you with the GEMPAK libraries to link your own
program against so that you can write your own files.


Steve Chiswell
Unidata User Support


>From: Diana DeRubertis <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200012102218.eBAMIjo22299

>Hi Steve,
>       Thanks for your response last week.  I did see that SNLIST computes
>the stablility indices that I need, namely the LI, the Showalter, TT,  K,
>SWEAT, CAPE, and Bulk Richardson Number. Do you know the approximate size
>of the entire software package?
>
>Thanks,
>Diana
>
>
>>>From: Diana DeRubertis <address@hidden>
>>>Organization: UCAR/Unidata
>>>Keywords: 200012022321.eB2NLvo18500
>>
>>>Hi,
>>>     I'm a grad student in climatology at UC Berkeley and will be
>>>calculating stablility indices from archived radiosonde data for a VERY
>>>LARGE selection stations and observation times over the last 50 years.  I
>>>basically need to create my own dataset of daily stability indices for each
>>>station.
>>>     I'd like to use Gempak, but will only need to use the program
>>>SNLIST.  Is it possible to download part of the package, since I won't need
>>>most of the other applications?  Second, can gempak handle the task I am
>>>looking to complete?  Meaning, can it calculate stabilty indices in a loop,
>>>for a very large set of soundings?
>>>
>>>Thanks for your time,
>>>Diana DeRubertis
>>>
>>>****************************************************************************
> **
>>>
>>>Diana DeRubertis
>>>Dept of Geography
>>>University of California, Berkeley
>>>Office:  199 McCone Hall
>>>Email:  address@hidden
>>>
>>>
>>
>>Diana,
>>
>>GEMPAK consists of a very comprehensive library of functions, and most
>>programs
>>are very simple calls to the library to read data, calculate quantities, etc.
>>As a result, it isn't possible to build just snlist without the rest of
>>the library code.
>>
>>However, it is possible for you to download binary distributions for
>>some platforms (I already have distributions built for Linux, Solaris,
>>Solaris X86). So, you could download the binaries and delete some parts of
>>the
>>distribution. For snlist, you don't need the map databases which are the
>>biggest
>>users of disk space. You would still need the parameter, help and error table
> s
>>that the program uses.
>>
>>The number of soundings that can be handled in a single file is a function of
>>the compile time settings for varying array sizes. The default configuration
>>allows 29,700 different stations at 300 times in a file (29,700 + 300 = 30,00
> 0
>>database records).
>>
>>Typically, you could put 1 month of soundings in a file (31 days * up to 8
>>sounding times per day = 248 sounding times).
>>Looping through files is easily done through a shell script which can run
>>snlist for each month of each year. I did something similar for 50 years
>>of sounding data from NCDC's upper air archive on CDROM (Journal of
>>Atmospheric and Oceanic Technology, Vol 11, No 5 (1994), 1253-1261).
>>
>>Before you start down this path, do you already know that snlist does compute
>>the indicies that you need?
>>
>>Steve Chiswell
>>**************************************************************************** 
>>Unidata User Support                                    UCAR Unidata Program 
>>(303)497-8644                                                  P.O. Box 3000 
>>address@hidden                                   Boulder, CO 80307 
>>---------------------------------------------------------------------------- 
>>Unidata WWW Service                        http://www.unidata.ucar.edu/      
>>**************************************************************************** 
>
>
>******************************************************************************
>
>Diana DeRubertis
>Dept of Geography
>University of California, Berkeley
>Office:  199 McCone Hall
>Email:  address@hidden
>
>