ncfile.addAttribute(null, new Attribute("Conventions", _Coordinate.Convention));
ncfile.addAttribute(null, new Attribute("format", volScan.getDataFormat()));
ncfile.addAttribute(null, new Attribute("cdm_data_type", FeatureType.RADIAL.toString()));
Date d = getDate(volScan.getTitleJulianDays(), volScan.getTitleMsecs());
ncfile.addAttribute(null, new Attribute("base_date", formatter.toDateOnlyString(d)));
ncfile.addAttribute(null, new Attribute("time_coverage_start", formatter.toDateTimeStringISO(d)));
ncfile.addAttribute(null, new Attribute("time_coverage_end", formatter.toDateTimeStringISO(volScan.getEndDate())));
ncfile.addAttribute(null, new Attribute("history", "Direct read of Nexrad Level 2 file into NetCDF-Java 2.2 API"));