Title_en,OctetNo,Contents_en,Note_en,noteIDs,codeTable,flagTable,Status analysis or forecast at a horizontal level or in a horizontal layer at a point in time for atmospheric chemical constituents,10,Parameter category,(see Code table 4.1),,4.1,,Operational analysis or forecast at a horizontal level or in a horizontal layer at a point in time for atmospheric chemical constituents,11,Parameter number,(see Code table 4.2),,4.2,,Operational analysis or forecast at a horizontal level or in a horizontal layer at a point in time for atmospheric chemical constituents,12-13,Atmospheric chemical constituent type,(see Code table 4.230),,4.230,,Operational analysis or forecast at a horizontal level or in a horizontal layer at a point in time for atmospheric chemical constituents,14,Type of generating process,(see Code table 4.3),,4.3,,Operational analysis or forecast at a horizontal level or in a horizontal layer at a point in time for atmospheric chemical constituents,15,Background generating process identifier (defined by originating centre),,,,,Operational analysis or forecast at a horizontal level or in a horizontal layer at a point in time for atmospheric chemical constituents,16,Analysis or forecast generating process identifier (defined by originating centre),,,,,Operational analysis or forecast at a horizontal level or in a horizontal layer at a point in time for atmospheric chemical constituents,17-18,Hours of observational data cut-off after reference time,(see Note),33,,,Operational analysis or forecast at a horizontal level or in a horizontal layer at a point in time for atmospheric chemical constituents,19,Minutes of observational data cut-off after reference time,,,,,Operational analysis or forecast at a horizontal level or in a horizontal layer at a point in time for atmospheric chemical constituents,20,Indicator of unit of time range,(see Code table 4.4),,4.4,,Operational analysis or forecast at a horizontal level or in a horizontal layer at a point in time for atmospheric chemical constituents,21-24,Forecast time in units defined by octet 20,,,,,Operational analysis or forecast at a horizontal level or in a horizontal layer at a point in time for atmospheric chemical constituents,25,Type of first fixed surface,(see Code table 4.5),,4.5,,Operational analysis or forecast at a horizontal level or in a horizontal layer at a point in time for atmospheric chemical constituents,26,Scale factor of first fixed surface,,,,,Operational analysis or forecast at a horizontal level or in a horizontal layer at a point in time for atmospheric chemical constituents,27-30,Scaled value of first fixed surface,,,,,Operational analysis or forecast at a horizontal level or in a horizontal layer at a point in time for atmospheric chemical constituents,31,Type of second fixed surface,(see Code table 4.5),,4.5,,Operational analysis or forecast at a horizontal level or in a horizontal layer at a point in time for atmospheric chemical constituents,32,Scale factor of second fixed surface,,,,,Operational analysis or forecast at a horizontal level or in a horizontal layer at a point in time for atmospheric chemical constituents,33-36,Scaled value of second fixed surface,,,,,Operational