netcdf sstfb_fdbk_20181231 {
dimensions:
	N_OBS = 51186 ;
	N_LEVELS = 1 ;
	N_VARS = 1 ;
	STRINGNAM = 8 ;
	STRINGWMO = 8 ;
	STRINGTYP = 4 ;
	STRINGJULD = 14 ;
variables:
	char VARIABLES(N_VARS, STRINGNAM) ;
		VARIABLES:long_name = "List of variables in feedback files" ;
	char STATION_IDENTIFIER(N_OBS, STRINGWMO) ;
		STATION_IDENTIFIER:long_name = "Station identifier" ;
	char STATION_TYPE(N_OBS, STRINGTYP) ;
		STATION_TYPE:long_name = "Code instrument type" ;
	double LONGITUDE(N_OBS) ;
		LONGITUDE:_FillValue = 99999. ;
		LONGITUDE:_Fillvalue = 99999. ;
		LONGITUDE:long_name = "Longitude" ;
		LONGITUDE:units = "degrees_east" ;
		LONGITUDE:valid_min = -180. ;
		LONGITUDE:valid_max = 180. ;
	double LATITUDE(N_OBS) ;
		LATITUDE:_FillValue = 99999. ;
		LATITUDE:_Fillvalue = 99999. ;
		LATITUDE:long_name = "Latitude" ;
		LATITUDE:units = "degrees_north" ;
		LATITUDE:valid_min = -90. ;
		LATITUDE:valid_max = 90. ;
	float DEPTH(N_OBS, N_LEVELS) ;
		DEPTH:_FillValue = 99999.f ;
		DEPTH:_Fillvalue = 99999. ;
		DEPTH:long_name = "Depth" ;
		DEPTH:units = "metre" ;
	float DEPTH_CORR(N_OBS, N_LEVELS) ;
		DEPTH_CORR:_FillValue = 99999.f ;
		DEPTH_CORR:_Fillvalue = 99999. ;
		DEPTH_CORR:long_name = "Depth correction" ;
		DEPTH_CORR:units = "metre" ;
		DEPTH_CORR:comment = "Add to DEPTH (i.e. DEPTH+DEPTH_CORR) to reduce systematic errors" ;
		DEPTH_CORR:usage = "Please read global attribute: usage" ;
	byte DEPTH_QC(N_OBS, N_LEVELS) ;
		DEPTH_QC:_FillValue = 0b ;
		DEPTH_QC:_Fillvalue = 0 ;
		DEPTH_QC:long_name = "Quality on depth" ;
		DEPTH_QC:Conventions = "q where q=[0,9]" ;
	double JULD(N_OBS) ;
		JULD:_FillValue = 99999. ;
		JULD:_Fillvalue = 99999. ;
		JULD:long_name = "Julian day" ;
		JULD:units = "days since JULD_REFERENCE" ;
		JULD:conventions = "Relative julian days with decimal part (as parts of day)" ;
	char JULD_REFERENCE(STRINGJULD) ;
		JULD_REFERENCE:long_name = "Date of reference for julian days" ;
		JULD_REFERENCE:conventions = "YYYYMMDDHHMMSS" ;
	byte OBSERVATION_QC(N_OBS) ;
		OBSERVATION_QC:_FillValue = 0b ;
		OBSERVATION_QC:_Fillvalue = 0 ;
		OBSERVATION_QC:long_name = "Quality on observation" ;
		OBSERVATION_QC:Conventions = "q where q=[0,9]" ;
	byte POSITION_QC(N_OBS) ;
		POSITION_QC:_FillValue = 0b ;
		POSITION_QC:_Fillvalue = 0 ;
		POSITION_QC:long_name = "Quality on position (latitude and longitude)" ;
		POSITION_QC:Conventions = "q where q=[0,9]" ;
	byte JULD_QC(N_OBS) ;
		JULD_QC:_FillValue = 0b ;
		JULD_QC:_Fillvalue = 0 ;
		JULD_QC:long_name = "Quality on date and time" ;
		JULD_QC:Conventions = "q where q=[0,9]" ;
	float SST_OBS(N_OBS, N_LEVELS) ;
		SST_OBS:_FillValue = 99999.f ;
		SST_OBS:_Fillvalue = 99999. ;
		SST_OBS:long_name = "Sea surface temperature" ;
		SST_OBS:units = "Degree centigrade" ;
	byte SST_QC(N_OBS) ;
		SST_QC:_FillValue = 0b ;
		SST_QC:_Fillvalue = 0 ;
		SST_QC:long_name = "Quality on sea surface temperature" ;
		SST_QC:Conventions = "q where q=[0,9]" ;
	byte SST_LEVEL_QC(N_OBS, N_LEVELS) ;
		SST_LEVEL_QC:_FillValue = 0b ;
		SST_LEVEL_QC:_Fillvalue = 0 ;
		SST_LEVEL_QC:long_name = "Quality for each level on sea surface temperature" ;
		SST_LEVEL_QC:Conventions = "q where q=[0,9]" ;
	float SST_OBS_TYPE_CORR(N_OBS, N_LEVELS) ;
		SST_OBS_TYPE_CORR:_FillValue = 99999.f ;
		SST_OBS_TYPE_CORR:_Fillvalue = 99999. ;
		SST_OBS_TYPE_CORR:long_name = "Sea surface temperature correction (station type)" ;
		SST_OBS_TYPE_CORR:units = "Degree centigrade" ;
		SST_OBS_TYPE_CORR:comment = "Add to SST_OBS (i.e. SST_OBS+SST_OBS_TYPE_CORR) to reduce systematic errors associated with station type" ;
		SST_OBS_TYPE_CORR:usage = "Please read global attribute: usage" ;
	float SST_OBS_TYPE_CORR_UNC(N_OBS, N_LEVELS) ;
		SST_OBS_TYPE_CORR_UNC:_FillValue = 99999.f ;
		SST_OBS_TYPE_CORR_UNC:_Fillvalue = 99999. ;
		SST_OBS_TYPE_CORR_UNC:long_name = "Sea surface temperature correction (station type) uncertainty" ;
		SST_OBS_TYPE_CORR_UNC:units = "Degree centigrade" ;
		SST_OBS_TYPE_CORR_UNC:comment = "Uncertainty associated with applying SST_OBS_TYPE_CORR (standard deviation)" ;
	float SST_OBS_STAT_CORR(N_OBS, N_LEVELS) ;
		SST_OBS_STAT_CORR:_FillValue = 99999.f ;
		SST_OBS_STAT_CORR:_Fillvalue = 99999. ;
		SST_OBS_STAT_CORR:long_name = "Sea surface temperature correction (individual station)" ;
		SST_OBS_STAT_CORR:units = "Degree centigrade" ;
		SST_OBS_STAT_CORR:comment = "Add to SST_OBS (i.e. SST_OBS+SST_OBS_STAT_CORR) to reduce systematic errors associated with a particular station" ;
	float SST_OBS_STAT_CORR_UNC(N_OBS, N_LEVELS) ;
		SST_OBS_STAT_CORR_UNC:_FillValue = 99999.f ;
		SST_OBS_STAT_CORR_UNC:_Fillvalue = 99999. ;
		SST_OBS_STAT_CORR_UNC:long_name = "Sea surface temperature correction (individual station) uncertainty" ;
		SST_OBS_STAT_CORR_UNC:units = "Degree centigrade" ;
		SST_OBS_STAT_CORR_UNC:comment = "Uncertainty associated with applying SST_OBS_STAT_CORR (standard deviation)" ;
	float SST_OBS_RAND_UNC(N_OBS, N_LEVELS) ;
		SST_OBS_RAND_UNC:_FillValue = 99999.f ;
		SST_OBS_RAND_UNC:_Fillvalue = 99999. ;
		SST_OBS_RAND_UNC:long_name = "Sea surface temperature random measurement uncertainty" ;
		SST_OBS_RAND_UNC:units = "Degree centigrade" ;
		SST_OBS_RAND_UNC:comment = "Random measurement uncertainty associated with SST_OBS (standard deviation)" ;
	float SST_OBS_COMB_UNC(N_OBS, N_LEVELS) ;
		SST_OBS_COMB_UNC:_FillValue = 99999.f ;
		SST_OBS_COMB_UNC:_Fillvalue = 99999. ;
		SST_OBS_COMB_UNC:long_name = "Sea surface temperature combined uncertainty" ;
		SST_OBS_COMB_UNC:units = "Degree centigrade" ;
		SST_OBS_COMB_UNC:comment = "Observation uncertainty obtained by combining all uncertainty terms in quadrature (standard deviation)" ;
		SST_OBS_COMB_UNC:usage = "Valid if SST_OBS_TYPE_CORR and SST_OBS_STAT_CORR have been applied" ;
	int DATABASE_IDENTIFIER(N_OBS) ;
		DATABASE_IDENTIFIER:_FillValue = 0 ;
		DATABASE_IDENTIFIER:_Fillvalue = 0 ;
		DATABASE_IDENTIFIER:long_name = "HadIOD database identifier" ;
		DATABASE_IDENTIFIER:comment = "Uniquely identifies an observation within its year/month and for the version of HadIOD used as data source" ;
		DATABASE_IDENTIFIER:usage = "If combined with year/month the identifier is unique to the version of HadIOD used as data source (but not amongst versions)" ;

// global attributes:
		:description = "surface feedback file" ;
		:file_version = "1.2" ;
		:source = "HadIOD version 1.2.0.0, ship central ensemble member (MEM)" ;
		:usage = "file-specific guidance: DEPTH_CORR and SST_OBS_TYPE_CORR must be applied together (and not independently)" ;
		:history = "created Mon May 20 12:53:14 2019" ;
		:title = "NEMO observation operator output" ;
}