[Esip-documentation] ACDD comments --

[Signell, Richard via Esip-documentation]

Guys,

I realize that the list of possible featureType at:
http://www.unidata.ucar.edu/software/thredds/current/netcdf-java/javadoc/ucar/nc2/constants/FeatureType.html
is just a list, any maybe the list doesn't yet agree with the CF list,
but it indicates that Unidata's netcdf-java will eventually have
classes for these.

The CF conventions specify common data models, and the type of common
data model *should* be specified by the featureType.    It used to
only be grid, but now we have the DSG stuff.   I can't imagine anybody
disagreeing that featureType=grid doesn't make sense.  I thought that
was in the CF conventions already, but if not, I guess we should
propose it.

-Rich

On Tue, Sep 23, 2014 at 11:27 AM, Bob Simons - NOAA Federal via
Esip-documentation <esip-documentation at lists.esipfed.org> wrote:
> The names of the constants in the Unidata netcdf-java software library are
> NOT the correct CF featureType names. See
> http://cfconventions.org/Data/cf-conventions/cf-conventions-1.6/build/cf-conventions.html#discrete-sampling-geometries
> 1) The CF featureTypes don't have underscores. Several constants in the
> Unidata library have underscores.
> 2) trajectoryProfile is a CF featureType, but is not in the netcdf-java
> constants list.
>
>
>
> On 2014-09-23 3:34 AM, Signell, Richard via Esip-documentation wrote:
>
> Here are the featureTypes Unidata currently recognizes:
> http://www.unidata.ucar.edu/software/thredds/current/netcdf-java/javadoc/ucar/nc2/constants/FeatureType.html
> which include
> swath (level 2)
> grid (bathy, level 3, structured model output)
> ugrid (unstructured grid, e.g. triangular, hex grid)
>
> On Mon, Sep 22, 2014 at 8:37 PM, Aleksandar Jelenak via
> Esip-documentation <esip-documentation at lists.esipfed.org> wrote:
>
> Hi Ed,
>
> On 9/22/14, 8:23 PM, "Armstrong, Edward M (398M)"
> <Edward.M.Armstrong at jpl.nasa.gov> wrote:
>
> Any equi rectangular Level 3 or 4 grid with fixed longitude and latitude
> grid spacing (so the lon/lat coordinate axes are 1 dimensional)
>
> Thanks. I thought so but wanted to be sure. I think the featureType
> attribute was introduced in the CF only for discrete sampling geometries.
> I don’t know if there are any plans to extend its vocabulary with some
> other feature types. A simple “grid” would be a good candidate, no?
>
>         -Aleksandar
>
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>
>
> --
> Sincerely,
>
> Bob Simons
> IT Specialist
> Environmental Research Division
> NOAA Southwest Fisheries Science Center
> 1352 Lighthouse Ave
> Pacific Grove, CA 93950-2079
> Phone: (831)333-9878 (Changed 2014-08-20)
> Fax: (831)648-8440
> Email: bob.simons at noaa.gov
>
> The contents of this message are mine personally and
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> Government or the National Oceanic and Atmospheric
> Administration.
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-- 
Dr. Richard P. Signell   (508) 457-2229
USGS, 384 Woods Hole Rd.
Woods Hole, MA 02543-1598