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Page 1 © Crown copyright 2005 Workshop on Metadata Beijing27-29 September WMO Interoperability – the vision Gil Ross (Met Office UK) Metadata workshop; Beijing
Page 2 © Crown copyright 2005 Workshop on Metadata Beijing27-29 September The “Vision” Thing - The “Vision” Thing Bush – the Elder NOT Pliny the Elder or Pitt the Elder But I’m not any of them So Can I articulate a WMO vision?
Page 3 © Crown copyright 2005 Workshop on Metadata Beijing27-29 September WMO Interoperability WMO is HIGHLY interoperable for over 50 years but in a closed user group which is admittedly large (187 member states) but which mainly talks to itself WMO has its own processes and protocols and formats and data types and networks and software and justified self-importance (but too much …)
Page 4 © Crown copyright 2005 Workshop on Metadata Beijing27-29 September Surface Observations 0000Z 20th September http://www.metoffice.gov.uk/research/nwp/observations/data_coverage/index.html
Page 5 © Crown copyright 2005 Workshop on Metadata Beijing27-29 September Aircraft Observations 0000Z 20th September http://www.metoffice.gov.uk/research/nwp/observations/data_coverage/index.html
Page 6 © Crown copyright 2005 Workshop on Metadata Beijing27-29 September WMO Interoperability But this isn’t the big-wide-world It isn’t even all WMO Commissions We need even better interoperability in WWW with the rest of WMO with USERS of our data with cheap software on everybody’s laptop Isn’t this the remit of the National Centres? I’d say – NO.
Page 7 © Crown copyright 2005 Workshop on Metadata Beijing27-29 September Interoperability Consider the following graphic. It happens to be created by MetO but It has a map background, Some contours, that has access to, Data, Sensible weather objects created by a forecaster, but could be another Met Service, A legend including a logo.
Page 8 © Crown copyright 2005 Workshop on Metadata Beijing27-29 September Components of a chart
Page 9 © Crown copyright 2005 Workshop on Metadata Beijing27-29 September WMO Interoperability World Weather Watch Climatology Oceanography Agriculture etc.etc. The Big Wide World NMS
Page 10 © Crown copyright 2005 Workshop on Metadata Beijing27-29 September Standards and Interfaces TBWW has standards and interfaces which are becoming ubiquitous and cheap Specialised formats are being ignored, circumvented and made obsolete specialised formats and protocols do have their place in closed systems – e.g. GTS however they should be presented externally in more widely recognised standards So WMO should have unified standards to present data and services to TBWW
Page 11 © Crown copyright 2005 Workshop on Metadata Beijing27-29 September And… don’t pay for development costs (not all) implementation costs are cheaper software we develop and use can be universal economies of scale choose successful standards rather than be bleeding edge ride the wave rather than buck the trend expect to follow industry upgrade paths secure(r) future
Page 12 © Crown copyright 2005 Workshop on Metadata Beijing27-29 September Standards and Interfaces What are these standards? Most likely Web Services data GRID OGC and ISO Catalogue services WMS – web mapping service WFS – web feature service WCS – web coverage service XML – GML Catalogues and repositories
Page 13 © Crown copyright 2005 Workshop on Metadata Beijing27-29 September Catalogues and repositories metadata catalogue feature catalogue schema repositories vocabularies Question - What is the difference? Answer - it isn’t entirely clear and - there isn’t a unique answer Identifiers (not file naming system) gazeteers locations CRS coordinate reference systems service catalogues WMO already does this but not in the modern way
Page 14 © Crown copyright 2005 Workshop on Metadata Beijing27-29 September What do we do now? Get involved Develop content for the catalogues Metadata Features and coverages Observations and Measurement CSML GML Gazeteers Vol 9 is good ICAO codes – not good CRS definitions
Page 15 © Crown copyright 2005 Workshop on Metadata Beijing27-29 September What do we do now (2) Vocabularies communityTopicCategory and keywords - a WMO taxonomy Parameter lists, definitions GRIB and BUFR tables WWW usage CF convention for netCDF Climatology and Oceanography usage Develop services – at NMS level and get involved again - a number of different contexts
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