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It looks like an extension of gaussian grids. We interpolate gaussian grids to rectangular grids, because the CDM API for Grid assumes a rectangular grid. Assuming the interpolation is straightforward and not too time-consuming, it shouldnt be a problem to support. Typically we would steal the ECMWF code and port to Java. If you can find C code to interpolate octahedral grids to rectangular, that would be helpful. John On Tue, Sep 29, 2015 at 1:19 AM, Martijn van der pauw < martijnvanderpauw@xxxxxxxxx> wrote: > Unfortunately, we don't have the exact specification from ECMWF yet, but > as soon as we have it available I will send it to you. But, it's good to be > aware the ECMWF model is going to switch to this in the next coming months. > I did some searching and came to this document on the WMO website where > they describe this octahedral grid. > > > http://www.wmo.int/pages/prog/arep/wwrp/new/documents/16_Baldauf_numerical_methods.pdf > > As soon as I know more I will update you on this. > > > 2015-09-28 22:34 GMT+02:00 Dennis Heimbigner <dmh@xxxxxxxx>: > >> >> I assume you are using truncated octohedra so that it >> is spacee filling. >> So, I also assume that for specifying the 3-d grid, >> it is sufficient to specify the parameters for a single >> truncated octohedtron. Can you indicate what parameters >> you use? >> =Dennis Heimbigner >> >> >> Martijn van der pauw wrote: >> >>> As ECMWF will use a octahedral grid to deliver their model issues in near >>> future, I would like to know if NETCDF-java will support this grid type >>> from the moment ECMWF will start using this? >>> >>> I think they will deliver this new grid starting somewhere early 2016. >>> >>> Martijn >>> >>> >>> >>> ------------------------------------------------------------------------ >>> >>> _______________________________________________ >>> netcdf-java mailing list >>> netcdf-java@xxxxxxxxxxxxxxxx >>> For list information or to unsubscribe, visit: >>> http://www.unidata.ucar.edu/mailing_lists/ >>> >> > > > -- > -http://www.topspots.org the best windsurfspots > -http://www.weer.nl the site I work at with work >
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