Dear Randy

If it is very product-specific, is it really a geophysical quantity which needs
a standard name? I mean, are there data from several sources for this quantity
which should be regarded as comparable, and which therefore should have a
common standard name?

If the answer is Yes, then I would suggest you propose a standard name which
explicit names the algorithm, like e.g. isccp_cloud_area_fraction.

Best wishes

Jonathan

----- Forwarded message from "[email protected]" 
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> From: "[email protected]" <[email protected]>
> To: [email protected]
> Date: Mon, 1 Jul 2013 08:28:15 -0400
> Subject: [CF-metadata] how to represent a non-standard error
> 
> 
> 
> Folks:   the GOES-R ground system generates a derived motion winds product. 
>  Accompaning each wind speed & direction in the product is the amount of 
> error associated withe the vector.  This error is not a standard_error, but 
> an error estimate based on a custom algorithm.   Because this is not a 
> standard_error, it would seem that using a standard_error standard_name 
> modifier would be misleading.   Any thoughts on how to represent this 
> product-specific error in the NetCDF file ? (The best idead I could come up 
> with so far is to establish an ancillary data relationwhip between the wind 
> speed/direction variables and the error variable, and use the error 
> variable's long_name to describe the error)     very respectfully,   randy

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