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[netCDFJava #HIP-291542]: Question on NcML aggregation

Li,

Are the times in the data sets unified (i.e., all the same), or are they 
interlaced?  In other words, if you were to set up a single time axis for all 
of the buoys, would the data line up on the axis, or would it be scattered 
around?  If the times are all the same, then you should be able to do a simple 
Union as described here:

http://www.unidata.ucar.edu/software/netcdf/ncml/v2.2/Aggregation.html

Otherwise, you will need to to a JoinNew, wherein you declare a new dimension 
as the aggregation dimension.  This is described on the same page.

-Lansing

> Hi Lansing,
> 
> I think there are group of buoys that are reporting data simultaneously.
> The data sets should be overlapping in space.
> I included Matt, who is the data officer for this data set, in our
> conversation.
> 
> Hi Matt,
> Please correct me if the description about the data is not right.
> 
> Thanks a lot,
> Li
> 
> 
> address@hidden> wrote:
> 
> > Li,
> >
> > Are the data sets from the buoys overlapping in time, space, or both?
> >  That is, do you have many buoys that are reporting data simultaneously, or
> > are the individual data set series generated by each buoy temporally
> > distinct?
> >
> > Also, are the nc files generated by the buoys, or have they been generated
> > through some post-processing from a raw data set?
> >
> > If the files are not too large, feel free to send me a few representative
> > files to work with locally, and I will try to set up an aggregation.
> >
> > Regards,
> >   Lansing Madry
> >   Unidata
> >   Boulder, Colorado
> >
> > > Dear Sir,
> > >
> > > I am trying to reach the experts about NcML aggregation.
> > >
> > > I have a group of time series buoy nc files. I tried to aggregate them
> > > by time, but failed since each of them holds a time series itself.
> > >
> > > It would be great if anyone could advise me on how should I aggregate
> > > these data.
> > >
> > > Thanks and Regards,
> > > Li
> > >
> > >
> >
> >
> > Ticket Details
> > ===================
> > Ticket ID: HIP-291542
> > Department: Support netCDF Java
> > Priority: Normal
> > Status: Open
> >
> >
> 
> 


Ticket Details
===================
Ticket ID: HIP-291542
Department: Support netCDF Java
Priority: Normal
Status: Open