Unidata/thredds — pull request #34 by iancw (2013-10-28 13:53:31+00:00)
Title: Fixed duplicate name / group ids for FNMOC params 1 and 2

001 is pressure
002 is pressure reduced to MSL

This fixes an "IllegalArgumentException: Variable name (pres_surface) must be unique within Group" when opening a GRIB file with both 001 and 002.