NOTE : this document is a modification of the original document available on the RAF web site.
I. VARIABLES RELATED TO TIME Type Name Units Description ------------------------------------------------------------------------------- Time HOUR hours Raw Tape Time Component Time MINUTE minute Raw Tape Time Component Time SECOND second Raw Tape Time Component Time base_time s Reference Start Time Time time_offset s Time offset from reference time II. VARIABLES OBTAINED FROM THE INERTIAL REFERENCE SYSTEM Type Name Units Description ------------------------------------------------------------------------------- Inertial Ref. LAT deg Inertial Latitude Inertial Ref. LON deg Inertial Longitude Inertial Ref. THDG deg Aircraft True Heading Angle Inertial Ref. PITCH deg Aircraft Pitch Angle Inertial Ref. ROLL deg Aircraft Roll Angle Inertial Ref. ACINS M/s2 Aircraft Vertical Acceleration Inertial Ref. VSPD M/s IRS-Computed Aircraft Vertical Velocity Inertial Ref. WP3 M/s Damped Aircraft Vertical Velocity Inertial Ref. ALT M Inertial Altitude Inertial Ref. GSF M/s Inertial Ground Speed Inertial Ref. VEW M/s Inertial Ground Speed Vector, East Comp. Inertial Ref. VNS M/s Inertial Ground Speed Vector, North Comp. Inertial Ref. BLATA G Inertial, Lateral Body Acceleration Inertial Ref. BLONA G Inertial, Longitudinal Body Acceleration Inertial Ref. BNORMA G Inertial, Normal Body Acceleration Inertial Ref. BPITCHR deg/s Inertial, Body Pitch Rate Inertial Ref. BROLLR deg/s Inertial, Body Roll Rate Inertial Ref. BYAWR deg/s Inertial, Body Yaw Rate SOLZEN deg Solar Zenith Angle SOLAZ deg Solar Azimuth Angle III. VARIABLES OBTAINED FROM THE GLOBAL POSITIONING SYSTEM (GPS) Type Name Units Description ------------------------------------------------------------------------------- GPS Reference GLAT deg GPS Latitude GPS Reference GLON deg GPS Longitude GPS Reference GGSF M/s GPS Ground Speed GPS Reference GVEW M/s GPS Ground Speed Vector, East Component GPS Reference GVNS M/s GPS Ground Speed Vector, North Component GPS Reference GVZI M/s GPS-Computed Aircraft Vertical Velocity GPS Reference GALT M GPS Altitude GPS Reference GMODE none GPS Mode GPS Reference GSTAT none GPS Status IV. ALTITUDE AND POSITION VARIABLES Type Name Units Description ------------------------------------------------------------------------------- Derived Posn. DEI kM Distance East of Reference Derived Posn. DNI kM Distance North of Reference Derived Posn. FXAZIM deg Radial Azimuth from Fixed Reference Derived Posn. FXDIST kM Radial Distance from Fixed Reference Position HGM M Geometric (Radio) Altitude Position HGME M Geometric (Radar) Altitude (APN-159) Position HGM232 M Geometric (Radar) Altitude (APN-232) Position PALT M NACA Pressure Altitude Position PALTF feet NACA Pressure Altitude Position HI3 M Pressure-Damped Inertial Altitude V. AIRCRAFT AND METEOROLOGICAL STATE VARIABLES Type Name Units Description ------------------------------------------------------------------------------- Uncorr. Raw ADIF mbar Vertical Differential Pressure, Boom Uncorr. Raw ADIFR mbar Vertical Differential Pressure, Radome Uncorr. Raw BDIF mbar Horizontal Differential Pressure, Boom Uncorr. Raw BDIFR mbar Horizontal Differential Pressure, Radome State ATTACK deg Attack Angle, Reference State AKDF deg Attack Angle, Boom Diff. Pressure State AKRD deg Attack Angle, Radome Diff. Pressure State SSLIP deg Sideslip Angle, Reference State SSDF deg Sideslip Angle, Boom Diff. Pressure State SSRD deg Sideslip Angle, Radome Diff. Pressure State PCAB mbar Interior Cabin Static Pressure Uncorr. Raw PSB mbar Raw Static Pressure, Boom Uncorr. Raw PSF mbar Raw Static Pressure, Fuselage Uncorr. Raw PSFD mbar Raw Static Pressure, Fuselage Digital Uncorr. Raw PSW mbar Raw Static Pressure, Wing Reference PSX mbar Raw Static Pressure, Reference State PSBC mbar Corrected Static Pressure, Boom State PSFC mbar Corrected Static Pressure, Fuselage State PSFDC mbar Corrected Static Presr., Fuselage Digital State PSWC mbar Corrected Static Pressure, Wing Reference PSXC mbar Corrected Static Pressure, Reference Uncorr. Raw QCB mbar Raw Dynamic Pressure, Boom Uncorr. Raw QCF mbar Raw Dynamic Pressure, Fuselage Uncorr. Raw QCR mbar Raw Dynamic Pressure, Radome Uncorr. Raw QCW mbar Raw Dynamic Pressure, Wing Reference QCX mbar Raw Dynamic Pressure, Reference State QCBC mbar Corrected Dynamic Pressure, Boom State QCFC mbar Corrected Dynamic Pressure, Fuselage State QCRC mbar Corrected Dynamic Pressure, Radome State QCWC mbar Corrected Dynamic Pressure, Wing Reference QCXC mbar Corrected Dynamic Pressure, Reference Uncorr. Raw TTB C Total Temperature, Radome Uncorr. Raw TTF C Total Temperature, Fuselage Uncorr. Raw TTFH C Total Temperature, Deiced Fuselage Uncorr. Raw TTRF C Total Temperature, Reverse Flow Uncorr. Raw TTRL C Total Temperature, Radome Left Uncorr. Raw TTRR C Total Temperature, Radome Right Uncorr. Raw TTW C Total Temperature, Wing Uncorr. Raw TTWH C Total Temperature, Deiced Wing Reference TTX C Total Temperature, Reference Uncorr. Raw DPB C Dew/Frost Point Temperature, Fuselage Bot. State DPT C Dew/Frost Point Temperature, Fuselage Top Uncorr. Raw VCRH C Dew/Frost Point Temperature, Cryogenic Uncorr. Raw CRHP mbar Cryogenic Hygrometer Inlet Pressure State FPCRC C Frost Point Temperature, Cryogenic Reference DPX C Dew/Frost Point Temperature, Reference State DPBC C Dew Point Temperature, T-Electric Bottom State DPCRC C Dew Point Temperature, Cryogenic State DPTC C Dew Point Temperature, T-Electric Top Reference DPXC C Dew Point Temperature, Reference Uncorr. Raw VLA Vdc Raw Lyman-alpha Hygrometer Output Uncorr. Raw VLA1 Vdc Raw Lyman-alpha Hygrometer Output (2nd) VI. THERMODYNAMIC VARIABLES Type Name Units Description ------------------------------------------------------------------------------- Thermodynamic ATB C Ambient Temperature, Radome Thermodynamic ATF C Ambient Temperature, Fuselage Thermodynamic ATFH C Ambient Temperature, Deiced Fuselage Thermodynamic ATRF C Ambient Temperature, Reverse Flow Thermodynamic ATRL C Ambient Temperature, Radome Left Thermodynamic ATRR C Ambient Temperature, Radome Right Thermodynamic ATW C Ambient Temperature, Wing Thermodynamic ATWH C Ambient Temperature, Deiced Wing Reference ATX C Ambient Temperature, Reference Thermodynamic TASB M/s Aircraft True Airspeed, Boom Thermodynamic TASF M/s Aircraft True Airspeed, Fuselage Thermodynamic TASR M/s Aircraft True Airspeed, Radome Thermodynamic TASW M/s Aircraft True Airspeed, Wing Reference TASX M/s Aircraft True Airspeed, Reference Thermodynamic TASHC M/s Aircraft True Airspeed, Humidity Corrected Thermodynamic EDPC mbar Ambient Water Vapor Pressure, Reference Thermodynamic THETA K Potential Temperature Thermodynamic THETAE K Equivalent Potential Temperature Thermodynamic TVIR C Virtual Temperature Thermodynamic THETAV K Virtual Potential Temperature Thermodynamic RHUM % Relative Humidity Thermodynamic RHOCR g/M3 Absolute Humidity, Cryogenic Thermodynamic RHODB g/M3 Absolute Humidity, T-Electric Bottom Thermodynamic RHODT g/M3 Absolute Humidity, T-Electric Top Thermodynamic RHOLA g/M3 Absolute Humidity, Lyman-alpha Thermodynamic RHOLA1 g/M3 Absolute Humidity, Lyman-alpha Thermodynamic SPHUM g/kg Specific Humidity Thermodynamic MR g/kg Mixing Ratio, T-Electric Thermodynamic MRCR g/kg Mixing Ratio, Cryogenic Thermodynamic MRLA g/kg Mixing Ratio, Lyman-alpha Thermodynamic MRLA1 g/kg Mixing Ratio, Lyman-alpha (2nd unit) Thermodynamic PSURF mbar Calculated Surface Pressure VII. WIND VARIABLES Type Name Units Description ------------------------------------------------------------------------------- Wind, GPS corrected XUIC M/s Wind Vector, East Component Wind, GPS corrected XVIC M/s Wind Vector, North Component Wind, GPS corrected XWIC M/s Wind Vector, Vertical Gust Component Wind, GPS corrected XWSC M/s Horizontal Wind Speed Wind, GPS corrected XWDC deg Horizontal Wind Direction Wind UX M/s Wind Vector, Longitudinal Component Wind VY M/s Wind Vector, Lateral Component VIII. RADIATION VARIABLES Type Name Units Description ------------------------------------------------------------------------------- Radiation RSTB C Radiometric Surface Temperature Radiation RSTT C Radiometric Sky/Cloud-Base Temperature Uncorr. Raw TCAVB C Cavity Temperature, Bottom PRT-5 (obs.) Uncorr. Raw TCAVT C Cavity Temperature, Top PRT-5 (obs.) Uncorr. Raw IRB W/M2 Raw Infrared Irradiance, Bottom Uncorr. Raw IRT W/M2 Raw Infrared Irradiance, Top Uncorr. Raw DTB C Pyrgeometer Dome Temperature, Bottom Uncorr. Raw DTT C Pyrgeometer Dome Temperature, Top Uncorr. Raw STB C Pyrgeometer Sink Temperature, Bottom Uncorr. Raw STT C Pyrgeometer Sink Temperature, Top Radiation IRBC W/M2 Corrected Infrared Irradiance, Bottom Radiation IRTC W/M2 Corrected Infrared Irradiance, Top Radiation SWB W/M2 Shortwave Irradiance, Bottom Radiation SWT W/M2 Shortwave Irradiance, Top Radiation UVB W/M2 Ultraviolet Irradiance, Bottom Radiation UVT W/M2 Ultraviolet Irradiance, Top Radiation XSWTC Shortwave Irradiance, corrected IX. CLOUD PHYSICS VARIABLES Type Name Units Description ------------------------------------------------------------------------------- Uncorr. Raw LWC g/M3 Raw C-T Liquid Water Content Cloud Physics LWCC g/M3 Corrected C-T Liquid Water Content Uncorr. Raw PLWC W Raw PMS-King Liquid Water Content Output Cloud Physics PLWCC g/M3 Corrected PMS-King Liquid Water Content Uncorr. Raw RICE Vdc Raw Icing-Rate Indicator Cloud Physics SCLWC g/M3 Derived Supercooled Liquid Water Content Cloud Physics PLWCC1 g/M3 Corrected PMS-King Liquid Water Content X. CLOUD PHYSICS VARIABLES FROM PMS 1-D AND 2-D PROBES Type Name Units Description ------------------------------------------------------------------------------- PMS Probe A200X cnts 200X Raw Accumulation PMS Probe A200Y cnts 200Y Raw Accumulation PMS Probe A260X cnts 260X Raw Accumulation PMS Probe AF300 cnts FSSP-300 Raw Accumulation PMS Probe AFSSP cnts FSSP-100 Raw Accumulation PMS Probe APCAS cnts PCAS Particle Spacing PMS Probe C200X N/L 200X Corrected Concentration PMS Probe C200Y N/L 200Y Corrected Concentration PMS Probe C260X N/L 260X Corrected Concentration PMS Probe CF300 N/cm3 FSSP-300 Corrected Concentration PMS Probe CFSSP N/cm3 FSSP-100 Corrected Concentration PMS Probe CPCAS N/cm3 PCAS Corrected Concentration PMS Probe CONC3 N/cm3 FSSP-300 Concentration PMS Probe CONC6 N/cm3 260X Concentration PMS Probe CONCA N/cm3 PCAS Concentration PMS Probe CONCF N/cm3 FSSP-100 Concentration PMS Probe CONCP N/cm3 PCAS Concentration PMS Probe CONCX N/L 200X Concentration PMS Probe CONCY N/L 200Y Concentration PMS Probe DBAR3 uM FSSP-300 Mean Particle Diameter PMS Probe DBAR6 uM 260X Mean Particle Diameter PMS Probe DBARA uM PCAS Mean Particle Diameter PMS Probe DBARF uM FSSP-100 Mean Particle Diameter PMS Probe DBARP uM PCAS Mean Particle Diameter PMS Probe DBARX uM 200X Mean Particle Diameter PMS Probe DBARY uM 200Y Mean Particle Diameter PMS Probe DISP3 none FSSP-300 Dispersion (sigma/dbarx) PMS Probe DISP6 none 260X Dispersion (sigma/dbarx) PMS Probe DISPF none FSSP-100 Dispersion (sigma/dbarx) PMS Probe DISPP none PCAS Dispersion (sigma/dbarx) PMS Probe DISPX none 200X Dispersion (sigma/dbarx) PMS Probe DISPY none 200Y Dispersion (sigma/dbarx) PMS Probe PLWC3 g/M3 FSSP-300 Water/Ice Content PMS Probe PLWC6 g/M3 260X Water/Ice Content PMS Probe PLWCF g/M3 FSSP-100 Water/Ice Content PMS Probe PLWCX g/M3 200X Water/Ice Content PMS Probe PLWCY g/M3 200Y Water/Ice Content PMS Probe DBZ6 dBZ 260X Computed Reflectivity PMS Probe DBZX dBZ 200X Computed Reflectivity PMS Probe DBZY dBZ 200Y Computed Reflectivity PMS Probe FRNG none FSSP-100 Size Range Category PMS Probe FRANGE none FSSP-100 Size Range Category (obsolete) PMS Probe FRST cnts FSSP-100 Fast Resets PMS Probe FRESET cnts FSSP-100 Fast Resets (obsolete) PMS Probe FSTB cnts FSSP-100 Strobes PMS Probe FSTROB cnts FSSP-100 Fast Strobes (obsolete) PMS Probe FBMFR none FSSP-100 Beam Fraction PMS Probe FACT none FSSP-100 Activity Fraction PMS Probe AACT cnts PCAS Raw Activity (obsolete) PMS Probe PACT cnts PCAS Raw Activity PMS Probe SDWC1 cnts 2D-C Shadow OR Counts PMS Probe SDWP1 cnts 2D-P Shadow OR Counts PMS Probe CON2C1 N/L 2D-C Concentration (from Shadow OR Counts) PMS Probe CON2P1 N/L 2D-P Concentration (from Shadow OR Counts) XI. VARIABLES ASSOCIATED WITH PARTICLE MEASUREMENTS Type Name Units Description ------------------------------------------------------------------------------- Uncorr. Raw PCN mbar CN Counter Inlet Pressure Uncorr. Raw TEMP1 C CN Counter Inlet Temperature Uncorr. Raw TEMP2 C CVI CN Counter Sample Temperature Uncorr. Raw FCN slpm Raw CN Counter Sample Flow Rate Corrected Raw FCNC vlpm Corrected CN Counter Sample Flow Rate Uncorr. Raw XICN slpm CN Isokinetic Side Flow Rate Corrected Raw XICNC vlpm Corrected CN Isokinetic Side Flow Rate Uncorr. Raw CNTS cnts TSI CN Counter Output Particle CONCN N/cm3 Condensation Nuclei (CN) Concentration XII. VARIABLES ASSOCIATED WITH AIR CHEMISTRY MEASUREMENTS Type Name Units Description ------------------------------------------------------------------------------- Uncorr. Raw CO ppb Carbon Monoxide Concentration Uncorr. Raw CMODE Vdc Carbon Monoxide Analyzer Status Uncorr. Raw COZRO Vdc CO Zero Baseline Uncorr. Raw COCOR Vdc CO Baseline, Corrected Chemistry COCAL ppmv Corrected CO Concentration Uncorr. Raw TEO3 ppb Raw TECO Ozone Output Uncorr. Raw TEP mbar Internal TECO Ozone Sampling Pressure Uncorr. Raw TET C Internal TECO Ozone Sampling Temperature Chemistry TEO3C ppbv Corrected TECO Ozone Concentration