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Hi Stu: Its not correctly assigning the coordinate transform. Add the following attributes to the TM variable: :_CoordinateTransformType = "Projection"; :_CoordinateAxisTypes = "GeoX GeoY"; Stuart Wier wrote:
John, > > can you send the acctual netcdf file, or put it on ftp? > It is on http://geon.unavco.org/unavco/NETCDF/Kanto_m8.ncI also have the latitude and longitude for each grid point, 6020 unique locations, if that would help. But they do not form a regular grid with uniform spacing so I could not see how to make them into dimensions for a grid.Thanks for your help StuHi stu: can you send the acctual netcdf file, or put it on ftp?Subject: IDV - NetCDF format for xyz data grid mapping to transverse Mercator From: "Stuart Wier" <address@hidden> Date: Wed, 21 Dec 2005 11:04:44 -0700 (MST) To: address@hidden To: address@hidden Institution: UNAVCO Package Version: 1.2b2 Operating System: linux Hardware Information: the usualInquiry: I have a GEON IDV user who has a regular xy-depth grid with 5 km spacing, and knows the mapping to a transverse Mercator projection. I made a NetCDF file whose CDL is attached. The NetCDF file appears in the IDV as a 3d grid ok, the depth levels are ok, but it seems the x and y values are taken for lon and lat. Can the cdl header information be changed so this will appear at the true grid location, a small area near 139 E, 36N?This looks to be a pretty standard kind of upper mantle data in the solid earth sciences so I expect to see a continuing demand for use of data like this in the IDV.Is "false_easting" required for the transverse mercator mapping? I am not clear what it is for.Stuart Most of the parameter data values are cut from the file to save space.