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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
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John, Thank you! This data was produced by NASA GMAO at GSFC. I will contact them to find out the reason to have this range valid_range = 9.9999999E14f, 9.9999999E14f; // float --- which does not seem to make sense at all it is funny though, Ferret is a lot more liberal (maybe GrADS as well) to put up with this. On Thu, Oct 28, 2010 at 7:35 PM, John Caron <caron@xxxxxxxxxxxxxxxx> wrote: > On 10/28/2010 4:17 PM, Ying at NCCS wrote: > > Hi John, > > I run into this problem using netcdf-java toolsUI to open either local > netcdf-4 file or via opendap, here is an example link > > > http://esg.nccs.nasa.gov/thredds/catalog/ying/readonly/catalog.html?dataset=ying/readonly/e562p1_fp.inst3_3d_asm_Nv.20100907_00z%2B20100909_1200z.nc4 > > it just shows all -Infinity on the color-bar. > > I was first having trouble to use NASA GISS Panoply (which uses > netcdf-java), then I tried this recent version of netcdf-java 42. ToolsUI > (downloaded from UNIDATA) --- it can read netcdf-4 file (the above link) > but it shows same max and min values of each variable. As a result, it just > gives a blank plot. > > Then I tried toolsUI-4.2.jar and it shows the same problem. > > > ftp://ftp.unidata.ucar.edu/pub/netcdf-java/v4.2/toolsUI-4.2.jar > > > by the way, I can use Ferret (most recent version) to open this netCDF-4 > file and makes right plots. > > > > _______________________________________________ > netcdf-java mailing listnetcdf-java@xxxxxxxxxxxxxxxx > For list information or to unsubscribe, visit: > http://www.unidata.ucar.edu/mailing_lists/ > > > Hi Ying: > > that file has this attribute on the data variables: > > : > this is a mistake, it says that there are no valid values. if it can be > removed from the file, it will work. can you contact the file author to have > it removed? > > looking at a random variable: > > float SLP(time=1, lat=721, lon=1152); > :_CoordinateAxes = "time lat lon "; > :long_name = "sea_level_pressure"; > :units = "Pa"; > :_FillValue = 9.9999999E14f; // float > :missing_value = 9.9999999E14f; // float > :fmissing_value = 9.9999999E14f; // float > :scale_factor = 1.0f; // float > :add_offset = 0.0f; // float > :standard_name = "sea_level_pressure"; > :vmin = 9.9999999E14f; // float > :vmax = 9.9999999E14f; // float > :valid_range = 9.9999999E14f, 9.9999999E14f; // float > > i would say that it would be better to have: > > float SLP(time=1, lat=721, lon=1152); > :long_name = "sea_level_pressure"; > :units = "Pa"; > :_FillValue = 9.9999999E14f; // float > :fmissing_value = 9.9999999E14f; // float > :standard_name = "sea_level_pressure"; > :vmin = 9.9999999E14f; // float > :vmax = 9.9999999E14f; // float > > John > > > _______________________________________________ > netcdf-java mailing list > netcdf-java@xxxxxxxxxxxxxxxx > For list information or to unsubscribe, visit: > http://www.unidata.ucar.edu/mailing_lists/ >
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