Further to my posting, and hopefully explain a bit more why I am querying this, can someone explain what the distinction between standard names "land_area_fraction" and "land_binary_mask" is. I have a dataset with a GRIB-1 variable value of 81 which would imply a standard_name of "land_area_fraction", but the variable is named "Land_cover_land1sea0" and only has values "1.0" and "0.0" and standard name"land_binary_mask" would seem more appropriate - which has a GRIB variable value listed as E172.
________________________________ From: Comiskey, Glenn Sent: 20 October 2011 14:10 To: 'cf-metadata@cgd.ucar.edu' Subject: Standard Name Table - GRIB column In the standard name table what do the E numbers in the GRIB column denote, i.e. E151 (air_pressure_at_sea_level), E130 (air_temperature). I understand what the plain numerical values represent, i.e. 1 equals pressure, 2 equals pressure reduced to MSL etc. Having decoded some GRIB 1 data files (Binary Viewer) I recognise the use of the plain numerals as per GRIB tables, but haven't seen any E values and can't find anything to explain what they are. Regards, Glenn
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