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SEAS and E-SURFMAR raw data are converted in FM13 SHIP and FM94 BUFR (information to be checked with regards to SEAS). A few metadata, such as the level of the different main sensors as well as the type of the station are added in BUFR messages to E-SURFMAR observation data prior to their transmission onto the GTS.
Shipborne Automated Weather Stations (S-AWS)
In general, S-AWS send their observations ashore thanks to their own transmitter. This latter may be Inmarsat, Iridium, Meteosat DCP,... Data may be raw (binary or alphanumeric) or FM13 SHIP messages (in the case of Meteosat DCPs). FM13 SHIP messages are forwarded onto the GTS as they are and possibly converted in BUFR without any metadata added. Raw data from many European S-AWS (E-SURFMAR dataformat #100) are converted in both WMO codes. Metadata are added to observation data prior to the GTS transmission.
Moored buoys
Drifting buoys
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