Hello, I have never received a reply to my initial message below... does anybody have any insights to share now?
Recap: I have a time series of ocean volume transport (given in Sverdrup) across a line. The line has two end points, and the transport is computed over a specific depth range. I would like to represent this in a clever way in a netcdf file with CF conventions. As far as variables go, I really only have two (happy to add more to e.g. contain the cell boundaries), and their standard_names are: time ocean_volume_transport_across_line I know how to include bounds for the time such that I can show over how many days my data were averaged. I suppose I could figure out the depth range by including a single scalar for depth, with associated bounds, and having a "coordinates" attribute on my transport that points to the depth. Does this sound correct? How about the two section endpoints? And when I have those, how would the user know which direction across that section is counted positive? Cheers, Matthias On Tue, 2016-04-26 at 08:25 -0700, Matthias Lankhorst wrote: > Dear CF, > > what is the proper way to define the shape and boundaries of an oceanic > section, for which I want to report the volume transport across that > section? > > The use case is an irregular-shaped section like OSNAP > (http://www.o-snap.org/wp-content/uploads/2013/11/20160329_OSNAP_planeview.jpg), > and the property to be reported is the seawater volume transport in a given > depth range as a timeseries with this CF standard_name: > ocean_volume_transport_across_line > > There needs to be some ancillary variable to say what the line > coordinates are, and I am not sure how to squeeze that into > "cell_bounds". > > In addition, how about the lower limit vertically if this is the > seafloor? If the transports were to be everything below e.g. 1000 m, > would it be appropriate to state vertical cell bounds as 1000 to 5000 m, > even if the ocean is not 5000 m deep? I.e. is the user intelligent > enough to realize that "5000" really means "5000 m or the seafloor, > whichever is shallower"? > > Thanks, Matthias > > -- _______________________________________ Dr. Matthias Lankhorst Scripps Institution of Oceanography 9500 Gilman Drive, Mail Code 0230 La Jolla, CA 92093-0230 USA Phone: +1 858 822 5013 Fax: +1 858 534 9820 E-Mail: [email protected] http://pordlabs.ucsd.edu/mlankhorst/ _______________________________________________ CF-metadata mailing list [email protected] http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
