[netCDFJava #HOJ-653870]: stationTimeSeries with ragged_parent_index

1) you have 27K stations, and 11K obs, so its hard to find a station with any 
obs. try "030750-99999". Use NCDump data from the Viewer tab to see data 
contents.
2) you need to add the altitude coordinate into
     :coordinates = "time lon lat";
3) the time selection widget in ToolsUI sucks
4) the CF dictators are demanding I hand over the Sudetenland, i mean make some 
changes to the CF point spec, so its likely some things will have to change.


> Guys,
> I made your changes to my ragged_parent_index point data file, and the
> stations now appear in ToolsUI, but when I select a station I get
> "there are no observations for this selection".   I tried to change
> the time selection, but it would not let me select a time range older
> than 1 day from the present date.  Is this expected behavior?
> 
> My modified file is at:
> http://coast-enviro.er.usgs.gov/models/share/gsod_point_ragged.nc
> 
> Thanks,
> Rich
> 
> 
> 
> On Fri, Feb 5, 2010 at 4:55 PM, Unidata netCDF Java Support
> <address@hidden> wrote:
> > Hi Rich,
> >
> > Rich wrote:
> >> I can't get this CDM Point stationTimeSeries  with ragged_parent_index to 
> >> work
> >>
> >> http://coast-enviro.er.usgs.gov/models/share/gsod_point.nc
> >>
> >> The coordinate systems seem okay, I can read the coordinate values and
> >> data values using other tools, but trying to load as Point FeatureType
> >> in ToolsUI produces this error:   "Table Structure(record):
> >> lat/lon/time coord not found".
> >>
> >> How can I go about diagnosing the problem?
> >
> > It took me awhile and some stepping through the code to see this one. Two 
> > problems, both very minor:
> >
> > 1) This may be a hold over from an old version of the PointObs spec. Your 
> > dataset has the global attribute
> >
> >  CF:pointFeature = "stationTimeSeries";
> >
> > but the netCDF-java code is looking for
> >
> >  CF:featureType = "stationTimeSeries";
> >
> > 2) Your "stn_name" variables needs the following attribute:
> >
> >  standard_name="station_id";
> >
> > The first one is the one that took some time. I don't know the PointObs 
> > code very well but also the error message didn't give much info to go on. 
> > I've added to that error message some info on what feature type it thought 
> > it was looking for ("POINT", the default for this part of ToolsUI). That 
> > might help next time.
> >
> > Anyway, here's the NcML I used to get it working (it includes a change from 
> > "deg_c" to "degC" on a few variables for udunits compatibility):
> >
> > <?xml version="1.0" encoding="UTF-8"?>
> > <netcdf xmlns="http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2"; 
> > location="gsod_point.nc">
> >
> >  <attribute name="CF:featureType" value="stationTimeSeries" />
> >  <variable name="stn_name">
> >    <attribute name="standard_name" value="station_id" />
> >  </variable>
> >
> >  <variable name="temp">
> >    <attribute name="units" value="degC" />
> >  </variable>
> >  <variable name="max_temp">
> >    <attribute name="units" value="degC" />
> >  </variable>
> >  <variable name="min_temp">
> >    <attribute name="units" value="degC" />
> >  </variable>
> >  <variable name="dewp">
> >    <attribute name="units" value="degC" />
> >  </variable>
> > </netcdf>
> >
> >
> > Cheers,
> >
> > Ethan
> >
> >
> >
> > Ticket Details
> > ===================
> > Ticket ID: HOJ-653870
> > Department: Support netCDF Java
> > Priority: High
> > Status: Closed
> >
> >
> 
> 
> 
> --
> Dr. Richard P. Signell   (508) 457-2229
> USGS, 384 Woods Hole Rd.
> Woods Hole, MA 02543-1598
> 
> 


Ticket Details
===================
Ticket ID: HOJ-653870
Department: Support netCDF Java
Priority: High
Status: Open