Hi David, The proposed CF aggregation rules (http://cf-trac.llnl.gov/trac/ticket/78, http://www.met.reading.ac.uk/~david/cf_aggregation_rules.html) have been designed to aggregate *any* CF-compliant datasets, where appropriate. I would be very interested in looking at the metadata of some of your files to (hopefully!) confirm this in your use case.
A netCDF schema for storing the results of such aggregations has also bee developed (http://www.met.reading.ac.uk/~david/cfa/0.4/). As far as I'm aware, there's not yet much software which understands these frameworks, apart from cf-python. All the best, David ---- Original message from Moroni, David F (398G) (12AM 29 Mar 16) > Date: Tue, 29 Mar 2016 00:01:00 +0000 > From: "Moroni, David F (398G)" <david.f.mor...@jpl.nasa.gov> > To: Steve Hankin <steven.c.han...@noaa.gov>, Ethan Davis <eda...@ucar.edu>, > CF metadata <cf-metadata@cgd.ucar.edu>, netCDF SWG > <netcdf....@lists.opengeospatial.org> > Subject: Re: [CF-metadata] Meeting invite: Advancing netCDF-CF, 24-26 May > 2016, Boulder, CO, USA > user-agent: Microsoft-MacOutlook/14.6.2.160219 > > Hi Ethan, > > I’m glad Steve brought up the “aggregation” topic. On this topic, it would be > interesting to see if anyone has successfully come up with a standardized > schema to aggregate satellite-derived Level 2 swath grid structures. > > I know there’s an aggregation implementation in the latest OPeNDAP release, > but it remains to be seen what this might look like for Level 2 (and perhaps > even Level 1) swath grid structured datasets. I don’t know of anyone who’s > successfully tested and released an operationally working instance of that > part of OPeNDAP for swath grid structured datasets. > > Cheers, > David > > From: CF-metadata > <cf-metadata-boun...@cgd.ucar.edu<mailto:cf-metadata-boun...@cgd.ucar.edu>> > on behalf of Steve Hankin > <steven.c.han...@noaa.gov<mailto:steven.c.han...@noaa.gov>> > Date: Monday, March 28, 2016 at 9:25 AM > To: Ethan Davis <eda...@ucar.edu<mailto:eda...@ucar.edu>>, CF metadata > <cf-metadata@cgd.ucar.edu<mailto:cf-metadata@cgd.ucar.edu>>, netCDF SWG > <netcdf....@lists.opengeospatial.org<mailto:netcdf....@lists.opengeospatial.org>> > Subject: Re: [CF-metadata] Meeting invite: Advancing netCDF-CF, 24-26 May > 2016, Boulder, CO, USA > > Ethan, > > Two more topics to consider as additions to your list: > > 1. "UGRID" -- Of interest to the coastal ocean modeling community, and stuck > in a holding pattern for quite a long time, is the harmonization of > mesh/unstructured grid coordinates into the main body of CF. The work is > mostly completed ... > > 2. "Aggregation" -- CF structures to link multiple files into larger > conceptual datasets. Time series aggregations, union aggregations > (associated variables in separate files), and ensemble membership are the > most obvious applications of this. Another important application is "tiled > grids" (ref. the "gridspec" proposal). > > - Steve > > ============================================ > > On 3/27/2016 9:24 PM, Ethan Davis wrote: > Hi all, > > As some of you have heard, we are holding a meeting to discuss current and > future netCDF-CF efforts and directions. The meeting will be held on 24-26 > May 2016 in Boulder, CO, USA at the UCAR Center Green facility. > > This meeting is organized by the “Advancing netCDF-CF for Geoscience” project > [1] which has been funded by the US NSF EarthCube program. The project goals > include several specific CF development efforts, both standards development > and software prototyping. (We are just starting to spin-up community > conversations around these specific goals for drafting CF extensions.) > Another aspect of the funded project is community engagement including with > the existing CF community, geoscience domains that have not been very > involved in CF, and other standards bodies (e.g., OGC). These and other > topics are on the current list of possible agenda items. Please let us know > if you have other agenda items in mind. > > The current list of possible agenda items includes: > > * Investigate using features of the netCDF enhanced data model to > improve/simplify the CF Discrete Sampling Geometries (which includes point, > sounding, and trajectory data types) > * Drafting a CF enhancement that would add support for complex data > footprints (e.g., river segments and drainage basins) > * Further develop the CFRadial proposal for representing Radar data > * Adding features to better support satellite data > * Adding CF support for hierarchical groups for organizing data and > metadata > * Enhancing CF to support Linked Data / semantic technology concepts > * Harmonizing CF grid mapping with OGC CRS (coordinate reference > systems), possibly with WKT > * Adding CF support for attribute namespaces and the use of URI prefixes > in attribute values > * Improved support for dimensionless data variables, logarithmic scales, > differences, etc. > > While we wish we could host all those interested in attending, given the > available meeting space and the number of project participants, we are asking > members of the CF community that are interested in attending to contact us > directly and let us know which aspects of CF are of interest to you and your > goals for the meeting. Please submit your expressions of interest by Monday, > 4 April 2016. We plan to invite participants by Friday, 8 April 2016. > > Travel and other information will be on the meeting page [2] later this week. > > Also, for anyone attending EGU in Vienna in April, we will have a splinter > meeting (SMP32) to discuss netCDF-CF. The splinter meeting will be held on > Thursday, 21 April 2016 at 15:30 in room 2.96. > > Thank you, > > Meeting Organizers > > Ethan Davis, UCAR Unidata > Charlie Zender, Univ of CA, Irvine > David Arctur, Univ of TX, Austin > Dave Santek, Univ of WI, Madison / SSEC > Kevin O’Brien, Univ of WA/JISAO and NOAA/PMEL > Aleksandar Jelenak, The HDF Group > Mike Dixon, NCAR/EOL > > [1] http://www.nsf.gov/awardsearch/showAward?AWD_ID=1541031 > > [2] http://www.unidata.ucar.edu/events/2016CFWorkshop/ > > > > _______________________________________________ > CF-metadata mailing list > CF-metadata@cgd.ucar.edu<mailto:CF-metadata@cgd.ucar.edu>http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata > > _______________________________________________ > CF-metadata mailing list > CF-metadata@cgd.ucar.edu > http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata -- David Hassell National Centre for Atmospheric Science (NCAS) Department of Meteorology, University of Reading, Earley Gate, PO Box 243, Reading RG6 6BB, U.K. Tel : +44 118 3785613 E-mail: d.c.hass...@reading.ac.uk _______________________________________________ CF-metadata mailing list CF-metadata@cgd.ucar.edu http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
