[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[IDV #CQE-207112]: Recognition of Fill / Missing value
- Subject: [IDV #CQE-207112]: Recognition of Fill / Missing value
- Date: Thu, 20 Nov 2008 17:43:58 -0700
Hi Chris:
looking at a random 2D variable:
short AerosolOpticalThicknessPassedThresholdStd(lat=720, lon=1440);
:_CoordinateAxes = "lat lon ";
:_FillValue = -32767s; // short
:units = "NoUnits";
:Title = "Standard deviation of the spectral Single ScatteringAlbedo ss
of aerosol models that passed the threshold.Scaled by a factor 1000.";
:UniqueFieldDefinition = "OMI-Specific";
:ScaleFactor = 0.0010; // double
:Offset = 0.0; // double
:missing_value = -32767s; // short
ScaleFactor should be scale_factor
Offset should be add_offset
see http://www.unidata.ucar.edu/software/netcdf/docs/BestPractices.html "packed
data values"
Im detecting missing values ok in toolsUI 4.0. what version IDV?
> Description of problem: We're trying to get our OPeNDAP server with the HDF5
> handler to work properly
> in IDV. In general, it seems to be working OK, *except* for an inability of
> IDV
> to recognize either the missing_value or _FillValue. Are we misnaming these
> or
> something? Or perhaps running into problems with the "short" variable type?
> BTW, Panoply seems to recognize them OK...
> Here is a URL:
> http://acdisc.sci.gsfc.nasa.gov/opendap/Aura_OMI_Level3/OMAEROe.003/2006/OMI-Aura_L3-OMAEROe_2006m0109_v003-2008m0815t092640.he5
> I've looked at both AerosolModelMW and
> AerosolOpticalThicknessPassedThresholdMean.
> (Of course, I can achieve the same affect by tweaking the color table, but
> that's
> a bit tedious.)
>
> Thanks!
>
>
Ticket Details
===================
Ticket ID: CQE-207112
Department: Support netCDF Java
Priority: Normal
Status: Open