2,DATETIME,DATETIME,MJD2K,DOUBLE,Representative DateTime of measurement,x
2,DATETIME.START,DATETIME,MJD2K,DOUBLE,Start DateTime of measurement,o
2,DATETIME.STOP,DATETIME,MJD2K,DOUBLE,Stop DateTime of measurement,o
2,INTEGRATION.TIME,[CONSTANT|DATETIME],s,REAL,Effective/Actual integration time,o
2,ALTITUDE,[ALTITUDE|DATETIME],m,REAL,Geometric height calculated from the GPS,x
2,LATITUDE,[CONSTANT|ALTITUDE|DATETIME],deg,REAL,In-situ GPS latitude of the instrument if reported otherwise launch geolocation,x
2,LONGITUDE,[CONSTANT|ALTITUDE|DATETIME],deg,REAL,In-situ GPS longitude of the instrument if reported otherwise launch geolocation,x
2,FLOWRATE,DATETIME,cm3 s-1,REAL,Instrument flowrate,o
2,TEMPERATURE,[ALTITUDE|DATETIME],K,REAL,Temperature measurement from instrument,o
2,TEMPERATURE_UNCERTAINTY.COMBINED.STANDARD,[ALTITUDE|DATETIME],K,REAL,1 sigma uncertainty estimate of the temperature measurement,x if TEMPERATURE is provided
2,HUMIDITY.RELATIVE,[ALTITUDE|DATETIME],%,REAL,Relative humidity measurement from instrument,o
2,HUMIDITY.RELATIVE_UNCERTAINTY.COMBINED.STANDARD,[ALTITUDE|DATETIME],%,REAL,1 sigma uncertainty estimate of the relative humidity,x if HUMIDITY.RELATIVE is provided
2,PARTICLE.SIZE,PARTICLE.SIZE,um,REAL,Average Particle size for each bin,x
2,PARTICLE.SIZE.BOUNDARIES,PARTICLE.SIZE;INDEPENDENT,um,REAL,Lower and Upper particle sizes for each bin,x
2,AEROSOL.NUMBER.DENSITY,[ALTITUDE;PARTICLE.SIZE|DATETIME;PARTICLE.SIZE],cm-3,REAL,number concentration for each size bin,x
2,AEROSOL.NUMBER.DENSITY_UNCERTAINTY.COMBINED.STANDARD,[ALTITUDE;PARTICLE.SIZE|DATETIME;PARTICLE.SIZE],cm-3,REAL,1 sigma uncertainty estimate of the number concentration for each size bin,x
2,AEROSOL.NUMBER.DENSITY_FLAG,[ALTITUDE|DATETIME],1,BYTE,Data quality flag for the measurement,o
2,SOURCE.PRODUCT,INDEPENDENT,[empty],STRING,Information relevant to the source history of the Metadata and Data,o