[CF-metadata] Standard name(s) needed for satellite-based ice driftproducts

[Philip J. Cameronsmith1]

On Wed, 5 Nov 2008, Pamment, JA (Alison) wrote:

> Dear Thomas,
>
> Thank you for your query.  It is not necessary to open a trac ticket
> because discussion of standard names normally takes place on the mailing
> list.
[....]
>
> sea_ice_y_displacement            [m]
> 'Displacement' means the change in geospatial position of an object that
> has moved over time.  The time interval during which the motion took
> place must be specified using a bounds variable for the time coordinate
> variable.  A displacement is a vector quantity. Sea ice displacement is
> defined as a two-dimensional vector, with no vertical component.  "y"
> indicates a vector component along the grid x-axis, when this is not
> true longitude, positive with increasing y.  A y displacement is
> calculated from the difference in the moving object's grid y coordinate
> between the start and end of the interval given in the time bounds
> variable.

Hi Alison,

I think I spotted a cut-and-paste error in the above description.  I 
assume that it should be "y-axis" instead of "x-axis"?

Otherwise, the descriptions seem clear and reasonable to me. :-)

Best wishes,

      Philip
------------------------------------------------------------------------
Dr Philip Cameron-Smith        Atmospheric, Earth, and Energy Division
pjc at llnl.gov                   Lawrence Livermore National Laboratory
+1 925 4236634                 7000 East Avenue, Livermore, CA94550, USA
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