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Hi Patrick, This should help you.... Let me know if you run into any problems. Thank you, -Jeff ____________________________ _____________________ Jeff Weber address@hidden Unidata Support PH:303-497-8676 NWS-COMET Case Study Library FX:303-497-8690 University Corp for Atmospheric Research 3300 Mitchell Ln http://www.unidata.ucar.edu/staff/jweber Boulder,Co 80307-3000 ________________________________________ ______________________ I provide a program called GDRADR in GEMPAK which can create radar mosaics from the individual site nexrad products found in the NEXRAD data feed: http://www.unidata.ucar.edu/packages/gempak/examples/gdradr/ I also provide 2 N0R (reflectivity) mosaics in the FNEXRAD data feed which I create here. One is a national 6km mosaic. The other is a regional 1km mosaic that is selected based on interesting weather conditions. These are the products used to create the images at: http://motherlode.ucar.edu/unidata/images/nids/radar_mosaic.gif http://motherlode.ucar.edu/unidata/images/nids/radar_region.gif The mosaic products in the FNEXRAD feed are in GRIB format and may be decoded into GEMPAK grid files with the following pqact.conf actions for dcgrib2: # MOSAIC Grids FNEXRAD ^radar_mosaic_national PIPE -close decoders/dcgrib2 -d data/gempak/logs/dcgrib_radar.log -e GEMTBL=/home/gempak/NAWIPS/gempak/tables data/gempak/radar/YYYYMMDD_radr.gem # FNEXRAD ^radar_mosaic_regional_(.*) !.*! PIPE -close decoders/dcgrib2 -d data/pub/decoded/gempak/logs/dcgrib.log -e GEMTBL=/home/gempak/NAWIPS/gempak/tables data/gempak/radar/YYYYMMDD_float_\1.gem You must be running dcgrib2 from GEMPAK 5.6.d, or will have to create the $GEMTBL/grid/ncargrib2.tbl table with the lines: ! ! NCARGRIB2.TBL -- GRIB 1 parameter conversion table version 2 ! !ID# NAME UNITS GNAM SCALE MISSING ! 201 Base reflectivity tile 0 dBZ N0R 0 -9999.00 255 Missing - MISS 0 -9999.00 Steve Chiswell Unidata User Support
