Changes between Version 12 and Version 13 of PointObservationConventions


Ignore:
Timestamp:
10/27/09 05:45:50 (9 years ago)
Author:
caron
Comment:

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  • PointObservationConventions

    v12 v13  
    3030 
    3131    * the lat, lon and time coordinates must always exist; a vertical coordinate may exist
     32    * coordinates may use missing values, but must do so in a consistent way. Missing coordinate values indicate that the point observation should be skipped.
    3233    * coordinates are identified with the "coordinates" attribute on the data variables, as specified in sections 4 and 5
    33     * coordinates may use missing values, but must do so in a consistent way
    3434    * index numbering, if used, is always 0 based
    3535    * variables are associated together by having a common, outer dimension
     
    7272
    7373In this example, the humidity(i) and temp(i) data are associated with the coordinate values time(i), lat(i), lon(i), and optionally alt(i). The obs dimension may use the unlimited dimension or not. If the time coordinate is ordered, the obs dimension may be named time (making time a coordinate variable rather than an auxiliary variable).
     74
     75The time coordinate may use a missing value, which indicates to skip all the data for that time index.
    7476
    7577