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WMO BUFR standard in ISO terms - Open Geospatial Consortium

WMO BUFR standard in ISO terms - Open Geospatial Consortium

WMO BUFR standard in ISO terms - Open Geospatial Consortium

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<strong>WMO</strong> data modell<strong>in</strong>g<br />

• Did <strong>WMO</strong> do ANY data modell<strong>in</strong>g?<br />

• data modell<strong>in</strong>g was not considered a separate process until<br />

much later<br />

• Implicit data modell<strong>in</strong>g was part of the data representation<br />

process whose task focus was to produce data codes <strong>in</strong> order<br />

to exchange data<br />

• WWW adopted and adapted exist<strong>in</strong>g pre-war and wartime<br />

codes.<br />

• Alphanumeric codes (TACs)<br />

• SYNOP METAR SHIP SYREP CLIMAT TEMP PILOT MOBIL<br />

ROCOB SATEM AMDAR MAFOR BATHY TRACKOB ASDAR<br />

SAREP SATOB SFAZI SFLOC HYDRA HYFOR TESAC FLEET<br />

ICEAN TAF etc. etc.<br />

• Most of these have 5-letter names<br />

• sent by Morse Code over radio (and teletype) so used Morse<br />

convention of break<strong>in</strong>g codes and cyphers <strong>in</strong>to 5 – groups.<br />

• MANY OF THESE CODES ARE STILL IN USE.<br />

© Crown copyright Met Office

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