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Re: THREDDS aggregation capability



Title: Re: THREDDS aggregation capability
Hi Ben:

THREDDS allows you to aggregate along any dimension, including a "new" one.  In your case, you would aggregate across time, and then do the normal OPeNDAP call for the one location, treating it as if it were one series.

You can see a lot of examples of this at:

http://oceanwatch.pfeg.noaa.gov:8081/thredds/catalog.html

All of the Items under the heading  "Aggregation Satellite Datasets" are aggregated in just this fashion . You can pick one and go to the html interface and see that you can select to get a time series at a point.  In fact, you can get a time series for a region.

HTH,

-Roy M.

I'm wondering if THREDDS (or perhaps simply a DODS or other type of server)
can help me with the following data aggregation problem.

I have daily data files containing an 84 hour forecast.  From these daily fi
les I want to extract a 24 hour section out of the 84 hour forecast and conc
atenate those 24 hour sections to form a continuous time series.  There may
be multiple sections of interest (e.g. 6 to 30, 36 to 50, 60 to 84).  This i
s "station" time series data at a point.  It is actually the time series at
a grid point extracted from daily NWP data files.

Can THREDDS do this?  Or is there another type of server you know of that wi
ll handle this problem?

Thank you,

Ben



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Roy Mendelssohn
Supervisory Operations Research Analyst
NOAA/NMFS
Environmental Research Division   
Southwest Fisheries Science Center
1352 Lighthouse Avenue
Pacific Grove, CA 93950-2097

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