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GEMPAK 7.3.1 is available as source code, 64-bit Linux binaries, and an OS X binary tarball. The most significant updates in this release are to GEMPAK's Python scripts which retrieve data from an AWIPS EDEX server.

7.3.1 binary and source code releases are available at

• https://www.unidata.ucar.edu/downloads/gempak/
• https://github.com/Unidata/gempak/releases

Both a standard binary and a version built against Python 2.7 for use with the python-awips package (see: https://python-awips.readthedocs.io) are available. Please consult the updated install instructions at https://www.unidata.ucar.edu/software/gempak/doc/install.html for more information.

How to retrieve AWIPS data with GEMPAK?

If you have installed gempak-python and python-awips, or built GEMPAK from source against python 2.7:

• Set/change the EDEX server defined in Gemenviron.profile or Gemenviron (default is edex-cloud.unidata.ucar.edu)
• Ensure that libpython2.7.so* is found (e.g. ldd $OS_BIN/gdinfo)
• Entries in datatype.tbl are used to define AWIPS grid names

  	grep ^A2 $GEMTBL/config/datatype.tbl  	A2METAR      AWIPSDB                   metar.xml    	A2SYNOP      AWIPSDB                   synop.xml    	A2UAIR       AWIPSDB                   uair.xml     	A2GFS        AWIPSDB                   gfs.xml      	A2GFS20      AWIPSDB                   gfs20.xml    	A2GFS80      AWIPSDB                   gfs80.xml    	A2RAP        AWIPSDB                   rap.xml      	A2NAM        AWIPSDB                   nam.xml      	A2NamDNG     AWIPSDB                   namdng.xml   	A2NAVGEM     AWIPSDB                   navgem.xml   	A2DGEX       AWIPSDB                   dgex.xml     	A2HRRR       AWIPSDB                   hrrr.xml     	A2CMC        AWIPSDB                   cmc.xml      	A2ECMWF      AWIPSDB                   ecmwf.xml    	A2MRMS       AWIPSDB                   mrms.xml     	A2RTMA       AWIPSDB                   rtma.xml     	A2URMA       AWIPSDB                   urma.xml  

These xml files are found in `$GEMTBL/data-access/`, and each defines the AWIPS/EDEX grid name used (e.g. dbkey='GFS20' for gfs20.xml)

An example in GDINFO:

  	GDFILE   = A2GFS20  	LSTALL   = YES  	OUTPUT   = t  	GDATTIM  = last  	GLEVEL   = 500  	GVCORD   = pres  	GFUNC    = all    GRID FILE: AWIPSDB/gfs20.xml/161129/1200F240                                                                        GRID NAVIGATION:        PROJECTION:          LCC                        ANGLES:                25.0   -95.0    25.0       GRID SIZE:              369     257       LL CORNER:            12.1900 -133.4590       UR CORNER:            57.2894  -49.3853     GRID ANALYSIS BLOCK:        ANALYSIS TYPE:        BARNES       DELTAN:               1.000       DELTAX:           -9999.000       DELTAY:           -9999.000       GRID AREA:           -90.00 -180.00   90.00  180.00       EXTEND AREA:         -90.00 -180.00   90.00  180.00       DATA AREA:             0.00    0.00    0.00    0.00     Number of grids in file:   258     Maximum number of grids in file:    258      NUM       TIME1              TIME2           LEVL1 LEVL2  VCORD PARM    138     161129/1200F240                        500         PRES TMPK            139     161129/1200F240                        500         PRES UREL            140     161129/1200F240                        500         PRES RELH            141     161129/1200F240                        500         PRES HGHT            142     161129/1200F240                        500         PRES OMEG            143     161129/1200F240                        500         PRES VREL            144     161129/1200F240                        500         PRES HGHT5           145     161129/1200F240                        500         PRES AVOR