Re: [thredds] OPeNDAP access to data in ArcSDE/Geodatabase?

  • To: Rich Signell <rsignell@xxxxxxxx>
  • Subject: Re: [thredds] OPeNDAP access to data in ArcSDE/Geodatabase?
  • From: James Gallagher <jhrg@xxxxxx>
  • Date: Fri, 15 Jan 2010 12:59:41 -0700

On Jan 15, 2010, at 12:55 PM, Roy Mendelssohn wrote:

ERDDAP can now hook into databases if they can make a view of the requisite data. ERDDAP can also act as an OPeNDAP server. Some fiddling might be necessary to have the data seen as a grid. II not, it can still be sent by OpeNDAP, just as OpeNDAP sequences.

Yet another option is to use the WCS Gateway we developed for Hyrax. That is, there is a handler for Hyrax that is designed to serve WCS coverages.

Email me for more info.



On Jan 15, 2010, at 11:50 AM, Rich Signell wrote:


We are wondering how we might get OPeNDAP access to an ArcSDE/ Geodatabase.

The EROS data center has gridded data (for example, the National
Elevation Database) stored in an Arc SDE Geodatabase, and they want to
have only one representation of the data (they don't want to create
duplicate NetCDF files). They provide a OGC Web Coverage Service by
which this data can be acquired, and we were wondering about the
feasability of adding an OPeNDAP service, since there are currently
quite a few OPeNDAP clients that would like to access this data.

One option would be to build an I/O Service Provider that connects
directly to the Arc SDE. Has anyone attempted or thought about this?

Another option that came to mind was the possibility of having the I/O
Service Provider connect to WCS, using getCapablities and getCoverage
to provide the syntactic metadata and actual data values to the Common
Data Model.    Could this work?


Dr. Richard P. Signell   (508) 457-2229
USGS, 384 Woods Hole Rd.
Woods Hole, MA 02543-1598

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

e-mail: Roy.Mendelssohn@xxxxxxxx (Note new e-mail address)
voice: (831)-648-9029
fax: (831)-648-8440

"Old age and treachery will overcome youth and skill."
"From those who have been given much, much will be expected"

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