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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@xxxxxxxxxxxxxxxxxxxxxxxx [mailto:wcs-2.0.swg-bounces+max.martinez=erdas.com@xxxxxxxxxxxxxxxxxxxx . org] 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-standar d 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
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