Re: [thredds] Union of time-aggregated datasets

• To: "Blodgett, David" <dblodgett@xxxxxxxx>
• Subject: Re: [thredds] Union of time-aggregated datasets
• From: Jon Blower <j.d.blower@xxxxxxxxxxxxx>
• Date: Tue, 6 Aug 2013 15:03:43 +0000

Thanks Dave, that's a great reference page. Kyle's solution seemed to work for 
me, but perhaps it's better to separate out the individual time aggregations 
into separate NcML files?

Cheers,
Jon

From: Blodgett, David [mailto:dblodgett@xxxxxxxx]
Sent: 06 August 2013 16:00
To: Jon Blower
Cc: thredds@xxxxxxxxxxxxxxxx
Subject: Re: [thredds] Union of time-aggregated datasets

Hi Jon,

We do this quite often. See some docs toward the bottom here: 
https://my.usgs.gov/confluence/display/GeoDataPortal/Thredds+setup

Some convoluted python code and output ncml files to do a big 'ol set of 
join/unions here: 
https://github.com/dblodgett-usgs/NetCDF_GDP_Wrok/tree/master/bcca_aggregation

Those are actually hosted here: http://pcmdi8.llnl.gov/thredds/bcsd/catalog.html

- Dave



On Tue, Aug 6, 2013 at 8:49 AM, Jon Blower 
<j.d.blower@xxxxxxxxxxxxx<mailto:j.d.blower@xxxxxxxxxxxxx>> wrote:
Hi,

I have a dataset consisting of 4 variables, each recorded on around 1000 
timesteps.  Unfortunately each variable and each timestep is provided as a 
separate NetCDF file, so I have about 4000 files.  Ideally I'd like to create a 
single dataset aggregating all of these variables and timesteps. How can I 
structure my THREDDS catalog to do this?

(It's not a forecast model so there are no overlapping times, so I'd like to 
avoid the FMRC aggregation type if possible.)

Cheers,
Jon

--
Dr Jon Blower
Technical Director, Reading e-Science Centre
School of Mathematical and Physical Sciences
University of Reading, UK
Tel: +44 (0)118 378 5213
Mob: +44 (0)7919 112687
http://www.resc.reading.ac.uk


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• References:
  • [thredds] Union of time-aggregated datasets
    • From: Jon Blower
  • Re: [thredds] Union of time-aggregated datasets
    • From: Blodgett, David