2,LATITUDE.INSTRUMENT,[CONSTANT|DATETIME],deg,REAL,Instrument geolocation (+ for north; - for south),x
2,LONGITUDE.INSTRUMENT,[CONSTANT|DATETIME],deg,REAL,Instrument geolocation (+ for east; - for west),x
2,ALTITUDE.INSTRUMENT,[CONSTANT|DATETIME],m,REAL,Instrument geolocation above MSL,x
2,ALTITUDE,[ALTITUDE|DATETIME;ALTITUDE],m,REAL,Altitude of measurement,o
2,FREQUENCY,CONSTANT,s-1,REAL,Instrument center frequency of operation,o
2,WAVELENGTH,CONSTANT,m,REAL,Instrument central wavelength of operation,x
2,BEAM.WIDTH,CONSTANT,deg,REAL,Instrument beam width (re. https://www.radartutorial.eu/06.antennas/an08.en.html),x
2,CHIRP.SEQUENCES.INDEX,CHIRP.SEQUENCES.INDEX,1,SHORT,Index count of the numbers of chirps in the measurement configuration that the FMCW-radar is running ,x
2,NYQUIST.VELOCITY,CHIRP.SEQUENCES.INDEX,m s-1,REAL,Nyquist velocity range the instrument operates for interpretation of the measured Doppler velocities,x
2,RANGE,[RANGE|DATETIME;ALTITUDE],m,REAL,Distance from the Sensor to Center of each Range Gate along the line of sight,x
2,DATETIME,DATETIME,MJD2K,DOUBLE,Datetime defined relative to reference datetime of Jan. 1 2000 at 0:00:00 UT which is equal to 0.00,x
2,INTEGRATION.TIME,DATETIME;CHIRP.SEQUENCES.INDEX,s,REAL,Duration/Integration time per single chirp,x
2,RADAR.REFLECTIVITY.FACTOR,[DATETIME;RANGE|DATETIME;ALTITUDE],mm6 m-3,REAL,Radar Reflectivity Factor of the Radar instrument - if the radar has only one polarisation state,o
2,RADAR.REFLECTIVITY.FACTOR_HH,[DATETIME;RANGE|DATETIME;ALTITUDE],mm6 m-3,REAL,Radar Reflectivity Factor at horizontal reception and horizontal transmission - mandatory if the radar is fully polarized,o
2,RADAR.REFLECTIVITY.FACTOR_VV,[DATETIME;RANGE|DATETIME;ALTITUDE],mm6 m-3,REAL,Radar Reflectivity Factor at vertical reception and vertical transmission - mandatory if the radar is fully polarized ,o
2,DOPPLER.VELOCITY_MEAN,[DATETIME;RANGE|DATETIME;ALTITUDE],m s-1,REAL,Radar mean Doppler velocity,x
2,DOPPLER.SPECTRUM_WIDTH,[DATETIME;RANGE|DATETIME;ALTITUDE],m s-1,REAL,Radar Doppler Spectrum Width,x
2,DOPPLER.SPECTRUM_KURTOSIS,[DATETIME;RANGE|DATETIME;ALTITUDE],1,REAL,Radar Doppler Spectrum Kurtosis,o
2,DOPPLER.SPECTRUM_SKEWNESS,[DATETIME;RANGE|DATETIME;ALTITUDE],1,REAL,Radar Doppler Spectrum Skewness,x
2,LINEAR.DEPOLARIZATION.RATIO,[DATETIME;RANGE|DATETIME;ALTITUDE],1,REAL,Radar Linear Depolarization Ratio - LDR measuring radars only,o
2,DIFFERENTIAL.REFLECTIVITY,[DATETIME;RANGE|DATETIME;ALTITUDE],mm6 m-3,REAL,Radar Differential Reflectivity - fully polarized radars only,o
2,DIFFERENTIAL.PHASE.SHIFT,[DATETIME;RANGE|DATETIME;ALTITUDE],deg,REAL,Radar Integrated Differential Phase - fully polarized radars only,o
2,SPECIFIC.DIFFERENTIAL.PHASE,[DATETIME;RANGE|DATETIME;ALTITUDE],deg km-1,REAL,Radar Specific Differential Phase - fully polarized radars only (provide formula),o
2,CORRELATION.COEFFICIENT,[DATETIME;RANGE|DATETIME;ALTITUDE],1,REAL,Radar Co-polar Correlation Coefficient - fully polarized radars only,o
2,DOPPLER.VELOCITY_RESOLUTION,DOPPLER.VELOCITY_RESOLUTION,m s-1,REAL,The resolution of the Doppler spectrum between +/- Nyquist Velocity for each chirp,o
2,RADAR.REFLECTIVITY.SPECTRUM,[DATETIME;RANGE;DOPPLER.VELOCITY_RESOLUTION|DATETIME;ALTITUDE;DOPPLER.VELOCITY_RESOLUTION],mm6 m-3,REAL,Radar Doppler spectrum - if the radar has only one polarisation state,o
2,RADAR.REFLECTIVITY.SPECTRUM_HH,[DATETIME;RANGE;DOPPLER.VELOCITY_RESOLUTION|DATETIME;ALTITUDE;DOPPLER.VELOCITY_RESOLUTION],mm6 m-3,REAL,Radar Doppler spectrum at horizontal reception and horizontal transmission - mandatory if the radar is fully polarized,o
2,RADAR.REFLECTIVITY.SPECTRUM_VV,[DATETIME;RANGE;DOPPLER.VELOCITY_RESOLUTION|DATETIME;ALTITUDE;DOPPLER.VELOCITY_RESOLUTION],mm6 m-3,REAL,Radar Doppler spectrum at vertical reception and vertical transmission - mandatory if the radar is fully polarized,o
2,LINEAR.DEPOLARIZATION.RATIO.SPECTRUM,[DATETIME;RANGE;DOPPLER.VELOCITY_RESOLUTION|DATETIME;ALTITUDE;DOPPLER.VELOCITY_RESOLUTION],1,REAL,Spectum of radar linear depolarisation ratio - LDR measuring radars only,o
2,DIFFERENTIAL.REFLECTIVITY.SPECTRUM,[DATETIME;RANGE;DOPPLER.VELOCITY_RESOLUTION|DATETIME;ALTITUDE;DOPPLER.VELOCITY_RESOLUTION],mm6 m-3,REAL,Spectral Radar Differential Radar Reflectivity - fully polarized radars only,o
2,CORRELATION.COEFFICIENT.SPECTRUM,[DATETIME;RANGE;DOPPLER.VELOCITY_RESOLUTION|DATETIME;ALTITUDE;DOPPLER.VELOCITY_RESOLUTION],1,REAL,Spectral Radar Co-polar Correlation Coefficient - fully polarized radars only,o
2,SURFACE.PRESSURE,DATETIME,hPa,REAL,Air Pressure (from Radar Meteo-Station),o
2,SURFACE.PRESSURE_SOURCE,CONSTANT,[empty],STRING,Source of Pressure measurement (e.g. Vaisala WXT520),x if SURFACE.PRESSURE provided
2,SURFACE.TEMPERATURE,DATETIME,K,REAL,Air Temperature (from Radar Meteo-Station),o
2,SURFACE.TEMPERATURE_SOURCE,CONSTANT,[empty],STRING,Source of Air Temperature measurement (e.g. Vaisala WXT520),x if SURFACE.TEMPERATURE provided
2,HUMIDITY.RELATIVE.SURFACE,DATETIME,%,REAL,Relative Humidity (from Radar Meteo-Station),o
2,HUMIDITY.RELATIVE.SURFACE_SOURCE,CONSTANT,[empty],STRING,Source of Relative Humidity measurement (e.g. Vaisala WXT520),x if HUMIDITY.RELATIVE.SURFACE provided
2,WIND.DIRECTION.SURFACE,DATETIME,deg,REAL,Wind Direction (from Radar Meteo-Station),o
2,WIND.DIRECTION.SURFACE_SOURCE,CONSTANT,[empty],STRING,Source of wind direction measurement (e.g. Vaisala WXT520),x if WIND.DIRECTION.SURFACE provided
2,WIND.SPEED.SURFACE,DATETIME,m s-1,REAL,Horizontal Wind Speed (from Radar Meteo-Station),o
2,WIND.SPEED.SURFACE_SOURCE,CONSTANT,[empty],STRING,Source of wind speed measurement (e.g. Vaisala WXT520),x if WIND.SPEED.SURFACE provided
2,RAIN.RATE.SURFACE,DATETIME,mm h-1,REAL,Rain Rate (from Radar Meteo-Station),o
2,RAIN.RATE.SURFACE_SOURCE,CONSTANT,[empty],STRING,Source of rainfall measurement (e.g. Vaisala WXT520),x if RAIN.RATE.SURFACE provided
2,TEMPERATURE.BRIGHTNESS,DATETIME,K,REAL,Brightness Temperature (from the Passive 89-GHz Channel of the radar),o
2,LIQUID.WATER.PATH,DATETIME,g m-2,REAL,Retrieval based on Nural NetWork developed by RPG and trained on Radiosondes or NWP reanalysis data,o
2,COMPUTER.TEMPERATURE,DATETIME,K,REAL,Radar PC Temperature,o
2,RECEIVER.TEMPERATURE,DATETIME,K,REAL,Radar Receiver Antenna Temperature,o
2,TRANSMITTER.TEMPERATURE,DATETIME,K,REAL,Radar Transmitter Antenna Temperature,o
2,TRANSMITTER.POWER,DATETIME,W,REAL,Radar Transmitter Power,o
2,ANGLE.VIEW_AZIMUTH,DATETIME,deg,REAL,Sensor azimuth angle - only for scanning radars,o
2,ANGLE.VIEW_ELEVATION,DATETIME,deg,REAL,Sensor elevation angle - only for scanning radars,o
2,ANGLE.VIEW_AZIMUTH.VELOCITY,DATETIME,deg s-1,REAL,Sensor azimuth angle velocity - scanning radars only,o
2,ANGLE.VIEW_ELEVATION.VELOCITY,DATETIME,deg s-1,REAL,Sensor zenith angle velocity - scanning radars only,o
2,ANGLE.PLATFORM_PITCH,DATETIME,deg,REAL,Pitch is a rotation about an axis that is perpendicular to both the local vertical axis and the nominal forward motion direction of the platform. Because the radar is fixed to the ground the forward motion axis is not existing. Therefore the vertical axis (longer dimension of the radar) is set as the moving direction,o
2,ANGLE.PLATFORM_ROLL,DATETIME,deg,REAL,Roll is a rotation about an axis that is perpendicular to the local vertical axis and is coplanar with the nominal forward motion direction of the platform. Because the radar is fixed to the ground the forward motion axis is not existing. Therefore  the vertical axis (longer dimension of the radar) is set as the moving direction,o
2,ANGLE.PLATFORM_YAW,DATETIME,deg,REAL,The twisting of the platform about the vertical axis,o
2,RANGE_OFFSET,CHIRP.SEQUENCES.INDEX,m,REAL,Range offsets between different chirps when measuring with FMCW-radars,o
2,FLAG.MEASUREMENT.QUALITY,DATETIME,1,BYTE,Bit entries: 2^0=ADC saturation; 2^1=spectral width too high; 2^2=no transmitter power leveling; 2^3=heater off; 2^4=blower off,o
2,FLAG.PROCESSING.QUALITY,[DATETIME;RANGE|DATETIME;ALTITUDE],1,BYTE,Quality flag added in the additional data processing to alert for known issues. 2^0=this range gate is known to have artificial spikes occurring; 2^1=aircraft or other known flying non-meteorological object; 2^2=wet-radome,o
2,ALIAS_FLAG,CONSTANT,1,BYTE,0=no dealiasing applied and 1=dealiasing by RPG,o
2,ALIAS_MASK,[DATETIME;RANGE|DATETIME;ALTITUDE],1,BYTE,Mask array indicating in which bin dealiasing was applied where 0=no aliasing and 1=aliasing occurs - related to our own developed data processing,o
2,SOURCE.PRODUCT,INDEPENDENT,[empty],STRING,Information relevant to the source history of the Metadata and Datadata in the form Original_Archive;Original_Filename;Original_File_Generation_Date,o