GEMPAK: General Meteorological Package. GEMPAK: General Meteorological Package. Used in conjunction with AWIPS operationally (NWS, SPC, HPC, etc.) Uses gridded or observed data to create -Isobaric/isentropic/ isertelic plots of model and/or reanalysis data
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Used in conjunction with AWIPS operationally (NWS, SPC, HPC, etc.)
Uses gridded or observed data to create
-Isobaric/isentropic/isertelic plots of model and/or reanalysis data
-Surface observations from METAR data
-Upper air observations from RAOB data
-Soundings from RAOB data or model data
Can also create your own variables or vertical levels within a grid file
Upper air observations
UAlbany WRF graphics (R. Lazear)
Dynamic Tropopause / 2 panel maps (R. Lazear)
Kyle Griffin’s GFS/Analyses
Other variables used in synoptic and mesoscale analysis (J. Kenyon)
Where is the data?
/data1/gempak : surface and upper air data
/data1/gempak/hds (or $HDS/) : model data
/data1/archive/gempak : archive back one year
/data7/nmc2 : GEFS and various GFS/NAM grids
/ncep/ncep_ncar : Reanalysis data 1948-current
/gfs1/1deganl : 1-degree GFS analyses, 2004-current
Iowa State GEMPAK archive
NOMADS server (NCDC)
-Must use dcgrib to convert data from grib2 to gempak format (.gem)
-Sample script: /share/ralazear/wget_cfsr.sc (H. Attard)
Now to take a look at the GEMPAK interface . . .
GEMPAK help is available!
-Works on any variable and GEMPAK program
GEMPAK user manual