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Transition to BUFR Format: Maximizing Data Quality and Quantity

Introduction to transitioning to BUFR format for data exchange, highlighting advantages over traditional codes like greater precision and flexibility. Discussion on WMO Code Migration Plan and the benefits of GRIB/BUFR/CREX. Emphasis on the goal of exchanging all observations in BUFR for increased data quality. Challenges and schedule considerations also discussed. Link for detailed plan provided.

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Transition to BUFR Format: Maximizing Data Quality and Quantity

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Presentation Transcript

  1. Introductory Briefing to Invite Discussion on Transition to BUFR Format Fred Branski April 27, 2004

  2. The Fourteenth WMO Congress supported the conclusions of CBS that table-driven code forms (TDCF), with their self-description, flexibility and expandability, were the solution to satisfy the demands of rapidly evolving science and technology WMO Code Migration Plan • Congress noted with satisfaction that CBS had developed a thorough plan for a WMO-wide migration to table-driven code forms (see detail in WMO web site : • http://www.wmo.ch/web/www/documents.html#CodeTables

  3. The Table Driven Codes Forms GRIB/BUFR/CREX • Offer great advantages compared to traditional alphanumeric codes • Self-description, flexibility, expandability, greater precision, packing/compression • For new parameters or new data types, no need to change software, handled via additional table entries (this is fundamental in light of the fast evolution of science and technology - there are regular requests for representation of new data types, metadata, higher resolution (time and space) and higher accuracy) • Expected increase in data quality and data quantity • Coordinates transmitted with reports • Binary nature and packing features

  4. CODE MIGRATION GOAL • Ultimately all observations to be exchanged in BUFR which offers more features than CREX, e.g. quality flags, associated values, packing,. • For some situations however, CREX can be an interim solution. • A BIG CHALLENGE!

  5. CODE MIGRATION SCHEDULE

  6. Discussion on Transition to BUFR Format Questions / Discussion

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