NOTE: The galeon mailing list is no longer active. The list archives are made available for historical reasons.
Andrew, That's one of the ways I thought this would fit in. In that fashion, the CF-netCDF binary encoding would be useful with a number of different standard delivery protocols. Your presentations on such topics are one of the main reasons I thought this would be a good idea. -- Ben On Thu, Aug 20, 2009 at 3:27 AM, Woolf, Andrew (STFC,RAL,ESC) < andrew.woolf@xxxxxxxxxx> wrote: > I’d say the same thing about GML – it’s already possible to use GML to > provide a canonical encoding linked to an underlying conceptual model *AND > xlink to netCDF for the actual content*. > > > > Andrew > > > > *From:* wcs-2.0.swg-bounces+andrew.woolf=stfc.ac.uk@ > lists.opengeospatial.org > [mailto:wcs-2.0.swg-bounces+andrew.woolf<wcs-2.0.swg-bounces%2Bandrew.woolf> > =stfc.ac.uk@xxxxxxxxxxxxxxxxxxxxxxxx] *On Behalf Of *Robin, Alexandre > *Sent:* 20 August 2009 09:16 > *To:* Max Martinez; Ben Domenico; Peter Baumann > *Cc:* Unidata Techies; Unidata GALEON; Carl Reed; wcs-2.0.swg > *Subject:* Re: [WCS-2.0.swg] CF-netCDF standards initiatives > > > > FYI, > > > > SWE Common can serve to send very efficiently packaged datasets (binary, > compressed binary) just like NetCDF does while providing robust metadata > describing the datasets. > > These datasets can be N-D grid coverages, discrete coverages, or any other > kind of sensor observations or model results. > > > > The point for us to build SWE Common rather than just reusing NetCDF was to > support efficient random access in huge datasets and real time streaming > data (which NetCDF is not designed for) with a single model. > > Both cases are supported and I am pretty sure we can generate a SWE Common > encoded binary stream that is byte-to-byte compatible with the data section > of a NetCDF file. > > > > Developing a module for the NetCDF API dealing with SWE Common would be > quite trivial thanks to the harmonization work we have already done. > > > > Regards, > > > > ------------------------------------------------- > > *Alexandre Robin* > > Spot Image, Web and E-Business > > Tel: +33 (0)5 62 19 43 62 > > Fax: +33 (0)5 62 19 43 43 > > http://www.spotimage.com > > Before printing, think about the environment > > > > > ------------------------------ > > *De :* Robin, Alexandre > *Envoyé :* jeudi 20 août 2009 10:01 > *À :* 'Max Martinez'; Ben Domenico; Peter Baumann > *Cc :* Unidata Techies; Unidata GALEON; wcs-2.0.swg; 'Carl Reed' > *Objet :* RE: [WCS-2.0.swg] CF-netCDF standards initiatives > > > > Ben, > > > > I hope we don’t have to define a NEW standard but rather work with you to > see how we can treat your use cases with SWE Common (which already > incorporates some NetCDF concepts and is VERY close to NcML). > > I already looked at the issue and writing a converter (even the ‘on the > fly’ kind) between the two formats should be no problem at all. > > > > Bringing legacy formats (be them pseudo-defacto standards of a community) > into OGC is NOT going to help interoperability across domains… > > > > Regards, > > > > ------------------------------------------------- > > *Alexandre Robin* > > Spot Image, Web and E-Business > > Tel: +33 (0)5 62 19 43 62 > > Fax: +33 (0)5 62 19 43 43 > > http://www.spotimage.com > > Before printing, think about the environment > > > > > ------------------------------ > > *De :* wcs-2.0.swg-bounces+alexandre.robin=spotimage.fr@ > lists.opengeospatial.org > [mailto:wcs-2.0.swg-bounces+alexandre.robin<wcs-2.0.swg-bounces%2Balexandre.robin> > =spotimage.fr@xxxxxxxxxxxxxxxxxxxxxxxx] *De la part de* Max Martinez > *Envoyé :* jeudi 20 août 2009 03:19 > *À :* Ben Domenico; Peter Baumann > *Cc :* Unidata Techies; Unidata GALEON; wcs-2.0.swg > *Objet :* Re: [WCS-2.0.swg] CF-netCDF standards initiatives > > > > Ben, > > > > What exactly is an “OGC binary encoding standard”? Is CF-netCDF attempting > to be the first of its kind or are there other examples? > > > > Max > > > ------------------------------ > > *From:* wcs-2.0.swg-bounces+max.martinez=erdas.com@ > lists.opengeospatial.org > [mailto:wcs-2.0.swg-bounces+max.martinez<wcs-2.0.swg-bounces%2Bmax.martinez> > =erdas.com@xxxxxxxxxxxxxxxxxxxxxxxx] *On Behalf Of *Ben Domenico > *Sent:* Wednesday, August 19, 2009 1:19 PM > *To:* Peter Baumann > *Cc:* Unidata Techies; Unidata GALEON; wcs-2.0.swg > *Subject:* [WCS-2.0.swg] CF-netCDF standards initiatives > > > > Hello, > > > > Some confusion has resulted from the fact that we are pursuing two parallel > efforts at standardizing CF-netCDF within the OGC. > > > > The first initiative began a few years ago. The goal is to establish > CF-netCDF as an extension standard for WCS encoding of data in binary form. > Stefano Nativi just sent out an email announcing the latest revision of > the proposed "discussion paper" on that topic. This will be discussed and > hopefully voted on at the September/October TC meeting. > > > > At the same time, we have a new initiative to establish CF-netCDF as a > separate OGC binary encoding standard. This approach will result in a > binary encoding which can be used with different access protocols, e.g., WFS > or SOS as well as WCS. Of course, in the long run, our objective is to tie > the two approaches together, but we do not want to impede progress on either > right now by making them formally interdependent. A very rough draft of the > core standard for CF-netCDF is on the GALEON wiki at: > > > > http://sites.google.com/site/galeonteam/Home/cf-netcdf-candidate-standard > > > > As you can see, the draft for the OGC core is based on the NASA Earth > Science Data System standard (NASA ESDS-RFC-011v1.00). We hope to have > this candidate standard in the proper OGC template form by the > September/October TC and will have an ad-hoc session at which we plan to > establish a SWG. Since there is already a large community of practice, > endorsement by other standards groups (NASA and NOAA in the US), and solid > reference implementations, we hope to move forward quickly with this > standard. > > > > We would very much like to have as many liaisons as possible between the > WCS and CF-netCDF working groups to ensure that they are kept in harmony. > > > > -- Ben > > -- > Scanned by iCritical. > >
galeon archives: