Due to the current gap in continued funding from the U.S. National Science Foundation (NSF), the NSF Unidata Program Center has temporarily paused most operations. See NSF Unidata Pause in Most Operations for details.
Due to the current gap in continued funding from the U.S. National Science Foundation (NSF), the NSF Unidata Program Center has temporarily paused most operations. See NSF Unidata Pause in Most Operations for details.
Tom, Thanks for the reply. I'm unfamiliar with CF and COARDS, but once I figure out what you're saying or if Don or someone else specifies exactly what needs to be changed, I can rearrange the file(s) with NCO or another tool. Tod On Tue, 2008-08-12 at 14:53 -0500, Tom Whittaker wrote: > Hi Tod.... > > Something strikes me as odd: GeoX is defined as a dimension of 500. > But then declared as a variable with a shape of "pixels". To follow > CF conventions, I think you want to declare it as: > > int GeoX(GeoX); > > so that it is a "coordinate variable" (in Sect 5.2 of the CF > conventions - see > <http://cf-pcmdi.llnl.gov/documents/cf-conventions/1.3/ch05s02.html>). > You might also need a "coordinates" attribute for your 2D fields so > that they know to use lat_g and lon_g. It's a little hard to > interpret this automatically since two variables that apparently > contain latitude values are in the file. > > I note that netcdf tools does not find any coordinate system or grids > in the file -- probably mostly due to the lack of being able to find > geo-locations. > > ....but I'm sure Don can help better than I. > > tom > > On Tue, Aug 12, 2008 at 2:29 PM, Tod Hagan <tod@xxxxxxxxxxxxxxx> wrote: > > All, > > > > Two questions: > > > > First, regarding > > http://eclipse.ncdc.noaa.gov:9090/thredds/nfdownload/iscpp-dx/2006/ISCCP.DX.0.GOE-10.2006.04.02.1800.CSU > > > > Is it possible to open this file with IDV? None of the options seem to > > work. It's a netCDF file; ncview's display of its 2D fields look > > reasonable. > > > > According to the global attributes it's formatted following "CF-1.0" > > conventions. Here's an excerpt from the start of 'ncdump -c' output: > > > > dimensions: > > pixel = 94379 ; > > GeoX = 500 ; > > GeoY = 550 ; > > variables: > > int pixel(pixel) ; > > pixel:long_name = "Pixel Number" ; > > int lat(pixel) ; > > lat:long_name = "Latitude" ; > > lat:units = "degrees_north" ; > > lat:scale_factor = 0.1f ; > > lat:add_offset = -90.f ; > > int lon(pixel) ; > > lon:long_name = "Longitude" ; > > lon:units = "degrees_east" ; > > lon:scale_factor = 0.1f ; > > int GeoX(pixel) ; > > GeoX:long_name = "X Position" ; > > GeoX:_CoordinateAxisType = "GeoX" ; > > int GeoY(pixel) ; > > GeoY:long_name = "Y Position" ; > > GeoY:_CoordinateAxisType = "GeoY" ; > > int gxpos(GeoX, GeoY) ; > > gxpos:long_name = "X Position" ; > > int gypos(GeoX, GeoY) ; > > gypos:long_name = "Y Position" ; > > int lat_g(GeoX, GeoY) ; > > lat_g:long_name = "Latitude" ; > > lat_g:units = "degrees_north" ; > > lat_g:scale_factor = 0.1f ; > > lat_g:add_offset = -90.f ; > > int lon_g(GeoX, GeoY) ; > > lon_g:long_name = "Longitude" ; > > lon_g:units = "degrees_east" ; > > lon_g:scale_factor = 0.1f ; > > > > Second, browsing THREDDS catalogs is hampered by the number of parse > > errors that are encountered, using both versions 2.3 and 2.5 of IDV. A > > couple of examples: > > > > Expanding xlink > > node:http://lead.unidata.ucar.edu:8080/thredds/topcatalog.html > > Error parsing xml: > > http://lead.unidata.ucar.edu:8080/thredds/topcatalog.html > > The declaration for the entity "HTML.Version" must > > end with '>'. > > The declaration for the entity "HTML.Version" must > > end with '>'. line:31 column:3 > > > > Creating > > ui:http://eclipse.ncdc.noaa.gov:9090/thredds/catalog/iscpp-dx/catalog.html > > Error parsing xml: The declaration for the entity "HTML.Version" > > must end with '>'. > > The declaration for the entity "HTML.Version" must > > end with '>'. line:31 column:3 > > > > Has anyone else seen this? Is it a problem with IDV or TDS? Apparently > > the THREDDS catalog validator that used to be available has disappeared. > > > > Thanks. > > > > Tod > > > > -- > > Tod Hagan > > Information Technologist > > AIRMAP/Climate Change Research Center > > Institute for the Study of Earth, Oceans, and Space > > University of New Hampshire > > Durham, NH 03824 > > Phone: 603-862-3116 > > > > > > _______________________________________________ > > idvusers mailing list > > idvusers@xxxxxxxxxxxxxxxx > > For list information, to unsubscribe, visit: > > http://www.unidata.ucar.edu/mailing_lists/ > > > > > -- Tod Hagan Information Technologist AIRMAP/Climate Change Research Center Institute for the Study of Earth, Oceans, and Space University of New Hampshire Durham, NH 03824 Phone: 603-862-3116
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