Changes between Version 5 and Version 6 of markhDataModelDraft


Ignore:
Timestamp:
02/17/14 06:59:22 (6 years ago)
Author:
markh
Comment:

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  • markhDataModelDraft

    v5 v6  
    33
    44Coordinate reference systems (CRS) provide the information required to geolocate coordinates and thus fields in three dimensional space with respect to the Earth.  A coordinate reference system provides a geographic frame of reference which coordinate instances may be defined with respect to.
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    6 Geo-location in the third dimension of space, the vertical, is only provided with respect to the datum of the coordinate reference system.
    75
    86A coordinate instance may reference one coordinate reference system, the coordinate is then defined with respect to this referenced CRS.