[CF-metadata] Sea water velocity

From: Jonathan Gregory <j.m.gregory>
Date: Thu, 8 Oct 2009 20:27:55 +0100

Dear Stephane

> float ewct(time, latitude, longitude) ;
> ewct:standard_name = "eastward_sea_water_velocity";
> ewct:ancillary_variables = "ct_flag";
> float nsct(time, latitude, longitude) ;
> nsct:standard_name = "northward_sea_water_velocity";
> nsct:ancillary_variables = "ct_flag";
> byte ct_flag(time, latitude, longitude) ;
> ct_flag:standard_name = "eastward_sea_water_velocity status_flag";
>
> That's it ? Both ewct and nsct variables have the same ancillary variable.
> But it's not obvious when you look at ct_flag that it applies to two
> variables !

I know. I think it is correct, but obviously not ideal. However the standard
doesn't have any other provision for this at the moment, so there is no
other immediate solution, as far as I can see.

We could extend the convention, but that will take a bit more thought and
debate, I expect. Proposals for modifying the convention are discussed on
the CF trac site.

Best wishes

Jonathan
Received on Thu Oct 08 2009 - 13:27:55 BST