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[THREDDS #SNF-996148]: Data structure change

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  • Subject: [THREDDS #SNF-996148]: Data structure change
  • Date: Fri, 01 May 2015 10:30:12 -0600
ok i see the problem, well get a fix out. thanks for reporting!

> we will need at least one more file to do the aggregation with
> 
> > When we tried to switch to TDS 4.6 from an earlier version, I saw a
> > significant change in the way data is served for our datasets which
> > use a joinExisting aggregation (see attached sample catalog.xml file):
> > New:
> > Dataset {
> > Float64 altitude[altitude = 1];
> > Float64 lat[lat = 4320];
> > Float64 lon[lon = 8640];
> > Float64 time[time = 508];
> > Float32 MHchla[time = 508][altitude = 1][lat = 4320][lon = 8640];
> > } satellite/MH/chla/8day;
> >
> > Old:
> > Dataset {
> > Float64 time[time = 508];
> > Float64 altitude[altitude = 1];
> > Float64 latitude[latitude = 4320];
> > Float64 longitude[longitude = 8640];
> > GRID {
> > ARRAY:
> > Float32 MHchla[time = 508][altitude = 1][latitude =
> > 4320][longitude = 8640];
> > MAPS:
> > Float64 time[time = 508];
> > Float64 altitude[altitude = 1];
> > Float64 latitude[latitude = 4320];
> > Float64 longitude[longitude = 8640];
> > } MHchla;
> > } satellite/MH/chla/8day;
> >
> >
> > -----
> > One big consequence of this is that a request for
> > e.g., ?MHchla[177][0][2080:2:2082][4940]
> > previously returned the MHchla data *and* time, altitude, latitude and
> > longitude data.
> > Now it just returns MHchla data.
> > (I admit the change reflects the new representation of the data in the
> > .dds.)
> >
> > ---
> > You can download a sample file from
> > http://coastwatch.pfeg.noaa.gov/erddap/download/MH2013001_2013008_chla.nc
> >
> > We reverted to a previous version of TDS. You can see the dataset at
> > http://oceanwatch.pfeg.noaa.gov/thredds/dodsC/satellite/MH/chla/8day.html
> >
> > ---
> > Is this a conscious, intentional change?
> > Are you committed to this change?
> >
> > Is this discussed somewhere that I can read about?
> > I don't see it in the release notes, but I could easily have missed it.
> >
> > Thank you.
> >
> > --
> > Sincerely,
> >
> > Bob Simons
> > IT Specialist
> > Environmental Research Division
> > NOAA Southwest Fisheries Science Center
> > 99 Pacific St., Suite 255A      (New!)
> > Monterey, CA 93940               (New!)
> > Phone: (831)333-9878            (New!)
> > Fax:   (831)648-8440
> > Email: address@hidden
> >
> > The contents of this message are mine personally and
> > do not necessarily reflect any position of the
> > Government or the National Oceanic and Atmospheric Administration.
> > <>< <>< <>< <>< <>< <>< <>< <>< <><
> >
> >
> 


Ticket Details
===================
Ticket ID: SNF-996148
Department: Support THREDDS
Priority: Normal
Status: Closed