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Hi Andrew: Yes in that sense I agree - I think there are multiple "features" involved and maybe that is the source of the confusion: * The Observation feature. (with its time, procedure, location, result etc) * The result value which can be a feature (e.g. a coverage, a profile etc - sampling features - such as profiles) * The thing in the world that the observation is about (e.g. a sample of water etc) - the so called "feature of Interest" My argument was (is) that it is the observation construct that ties these things together and thus makes then shareable with others. R
-----Original Message----- From: Woolf, A (Andrew) [mailto:A.Woolf@xxxxxxxx] Sent: March 14, 2008 10:50 AM To: Ron Lake; Luis Bermudez; Simon.Cox@xxxxxxxx Cc: galeon@xxxxxxxxxxxxxxxx Subject: RE: [galeon] Fwd: CDM feature and point types docs My point was that for most of marine and atmospheric science the "meaningful entities in the domain" ARE points, profiles, trajectories, sections, grids etc. No more, no less. Of course they can be cast in an Observations framework - after all there is an instrument (XBT, CTD, radiosonde, wind profiling radar) measuring a property (temperature, salinity, wind) of the feature (with a coverage result) - but the feature is a 'Profile'. (This is exactly what we do in CSML.)
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