Introduction

This program reads selected GRIB2 fields from a file, adds a flag Field separator block and the size in bytes of the grib file, and the WMO super header and the time stamp, adds a TOC Flag Field separator block and WMO Header in front of each GRIB2 field, and writes them out to a new file. The output file is in the format required for TOC's FTP Input Service, which can be used to disseminate the GRIB2 bulletins. This service is described at http://weather.gov/tg/ftpingest.html.

The "EXTRACT" variable in the namelist allows users to choose whether they want the entire GRIB2 message containing the requested field (extract=.false.), OR a GRIB2 message containing only the requested field (extract=.true.). Both options return the same message if the requested field is the only field in the GRIB2 message.

Input Files

5 Namelist of grib fields and associated wmo headers.
11 Input grib2 file.
12 Get the file size of the grib file
31 Corresponding input grib2 index file.

Output Files (Including Scratch Files)

6 standard fortran print file
51 output grib bulletin file in toc format

Return Values

0 - Successful run
10 - Error opening input GRIB2 data file
20 - Error opening output GRIB transmission file
19 - error reading control card file - all bulletins missing
30 - some bulletins are missing