John, I ci Ernst tables into both the branch and the trunk, so the file HIRLAMhybrid.grib can be opened and displayed. The hybrid_sigma_pressure_coordinate data will not be available to the cdm stack until I finish with the work of inserting the PDS and the GDS into the grib index. I just started today on GDS work. Robb... Ticket Details =================== Ticket ID: KDK-897162 Department: Support netCDF Java Priority: High Status: Open