GEMPAK 5.2 Help Page
NA Series (Grib decoder program)
OA Series (Objective analysis programs)
SF Series (Surface obs programs)
SN Series (Upper air programs)
Note: the documentation looks better if you set your browser to use a small font.
Questions and errors to
peggy@unidata.ucar.edu. Compliments to
djboccip@graupel.mit.edu.
I'll make sure Dennis hears about any changes we make to the
Unidata set of documents.
Instructions on local installation of the help docs are
available to licensed Unidata sites on the Unidata GEMPAK contrib
directory in the files gemhelp_html.tar.Z and gemhelp_html.README.
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Grid programs
- GDCFIL
- Create a GEMPAK file
- GDCNTR
- Draw contour lines
- GDCROSS
- Draws vertical spatial cross sections
- GDDELT
- Delete grids from grid files
- GDDIAG
- Compute and append a scalar diagnostic grid
- GDEDIT
- Read and append a sequential edit file
- GDINFO
- Lists information about grid files
- GDLIST
- Lists data from scalar grid field
- GDMAP
- Plots data from grid file
- GDMOD
- Moves data between grid files
- GDOMEG
- Computes grids of vertical motion
- GDPLOT
- Draws contours and vector plots
- GDPROF
- Draw profiles of gridded data
- GDSTAT
- Compute statistics on time series of grids
- GDSTREAM
- Draw streamlines through vector grid
- GDTHGT
- Draws vertical time cross sections
- GDTSER
- Draw time series of scalar at a level
- GDVINT
- Performs interpolation between vertical coordinates
- GDWIND
- Draw wind barbs/arrows at each point
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Plot control programs
- GPAREA
- Updates geographic area table
- GPBOX
- Draw a box around a region
- GPCLEAR
- Clear current graphics device
- GPCLOSE
- Close current graphics output file
- GPCOLOR
- Change colors
- GPEND
- Terminate GEMPLT subprocesses
- GPMAP
- Define graphics area, draw map features
- GPREST
- Restore graphics plot
- GPSAVE
- Save graphics plot
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Objective analysis programs
- OABOX
- Draw box around obj. anal. region
- OABSFC
- Perform Barnes obj. anal. on surface data
- OABSND
- Perform Barnes obj. anal. on upper air data
- OAGRID
- Create grid file to use in Barnes obj. anal.
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Grib decoder program
- NAGRIB
- Grib decoder program
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Surface data programs
- SFCFIL
- Create new surface file
- SFDELT
- Delete data from surface file
- SFEDIT
- Add or change data using sequential edit file
- SFGRAM
- Draw meteogram for surface data
- SFL604
- List data from surface file in fixed format
- SFLIST
- List data from surface file
- SFMAP
- Plot surface data on a map
- SFMOD
- Move data between surface files
- SFRAWD
- Translate raw surface data to GEMPAK format
- SFSTNS
- Modify station information in surface file
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Upper air data programs
- SNCFIL
- Create new sounding file
- SNCROSS
- Draw cross-sections through sounding data
- SNDELT
- Delete data from sounding file
- SNEDIT
- Append data from a sequential edit file
- SNHODO
- Draw hodograph of upper air data
- SNLIST
- List upper air data from sounding file
- SNMAP
- Plot sounding data on a map
- SNMOD
- Move sounding data between files
- SNPROF
- Draw profiles of upper air data
- SNRAWD
- Decode raw upper air data
- SNSTNS
- Modify station information in upper air file
- SNTSER
- Draw time series at a sounding station
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