Hi Mark: COARDS does not support 2D lat/lon coordinates. You will need to use CF: 1. change "Conventions" to "CF-1.0" 2. lat/lon coordinates need units of "degrees_north", "degrees_east", not "degrees" 3. data variables need an attribute "coordinates" with value "latitcrs longicrs" the equivilent NcML: <?xml version="1.0" encoding="UTF-8"?> <netcdf xmlns="http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2" location="C:/data/2005052500_012-mss.nc"> <attribute name="Conventions" type="String" value="CF-1.0" /> <variable name="latitcrs"> <attribute name="units" type="String" value="degrees_north" /> </variable> <variable name="longicrs" > <attribute name="units" type="String" value="degrees_east" /> </variable> <variable name="t" > <attribute name="coordinates" type="String" value="latitcrs longicrs" /> </variable> </netcdf> Ticket Details =================== Ticket ID: NYY-367135 Department: Support netCDF Java Priority: Emergency Status: Open