For more information regarding individual measurements, please refer to RAF Bulletin 9.
| I. TIME |
| Name |
Units |
Description |
| Time (ADS3) |
sec |
Time of measurement [since the start date/time reported in the netCDF data file's Time "units" attribute (UTC)]
Example: Time:units = "seconds since 2006-04-26 12:55:00 +0000" ; |
| HOUR (obsolete *) |
hour |
Raw ADS Time Component (UTC) |
| MINUTE (obsolete *) |
minute |
Raw ADS Time Component (UTC) |
| SECOND (obsolete *) |
s |
Raw ADS Time Component (UTC) |
| YEAR (obsolete *) |
yr |
Raw ADS Time Component (UTC)
(year at start time) |
| MONTH (obsolete *) |
mo |
Raw ADS Time Component (UTC)
(month at start time) |
| DAY (obsolete *) |
day |
Raw ADS Time Component (UTC)
(day at start time) |
| base_time (obsolete *) |
seconds |
Reference Start Time (UNIX time format, UTC) [single scalar, not a "record" variable] |
| time_offset (obsolete *) |
seconds |
Offset from Reference Start Time |
| * obsolete -- time measurements used for RAF's ADS1 and ADS2 data acquisition systems. |
| II. INERTIAL REFERENCE SYSTEM |
| Name |
Units |
Description |
| LAT |
degree_N |
Inertial Latitude |
| LON |
degree_E |
Inertial Longitude |
| THDG |
degree_T |
Aircraft True Heading Angle |
| PITCH |
degree |
Aircraft Pitch Angle |
| ROLL |
degree |
Aircraft Roll Angle |
| ACINS |
m/s2 |
Aircraft Vertical Acceleration |
| VSPD |
m/s |
IRS-Computed Aircraft Vertical Velocity |
| ALT |
m |
IRS-Computed Aircraft Altitude |
| GSF |
m/s |
Inertial Ground Speed |
| VEW |
m/s |
Inertial Ground Speed Vector, East Component |
| VNS |
m/s |
Inertial Ground Speed Vector, North Component |
| III. GLOBAL POSITIONING SYSTEM (GPS) |
| Name |
Units |
Description |
| GLAT |
degree_N |
GPS Latitude |
| GLON |
degree_E |
GPS Longitude |
| GVEW |
m/s |
GPS Ground Speed Vector, East Component |
| GVNS |
m/s |
GPS Ground Speed Vector, North Component |
| GALT |
m |
GPS Altitude |
| GMODE |
none |
GPS Mode |
| GSTAT |
none |
GPS Status |
| IV. ALTITUDE AND POSITION |
| Name |
Units |
Description |
| HGM232 |
m |
Geometric (Radar) Altitude (APN-232) |
| PALT |
m |
NACA Pressure Altitude |
| PALTF |
feet |
NACA Pressure Altitude |
| ALTC |
m |
GPS-Corrected Altitude |
| LATC |
degree_N |
GPS-Corrected Latitude |
| LONC |
degree_E |
GPS-Corrected Longitude |
| V. AIRCRAFT AND METEOROLOGICAL STATE PARAMETERS |
| Name |
Units |
Description |
| ATTACK |
degree |
Attack Angle, Reference |
| SSLIP |
degree |
Sideslip Angle, Reference |
| PCAB |
mbar |
Interior Cabin Static Pressure |
| PSX |
mbar |
Raw Static Pressure, Reference |
| PSXC |
mbar |
Corrected Static Pressure, Reference |
| QCX |
mbar |
Raw Dynamic Pressure, Reference |
| QCXC |
mbar |
Corrected Dynamic Pressure, Reference |
| TTH |
deg_C |
Total (Recovery) Temperature, Deiced |
| TTX |
deg_C |
Total (Recovery) Temperature, Reference |
| DPX |
deg_C |
Dew/Frost Point Temperature, Reference |
| DPXC |
deg_C |
Dew Point Temperature, Reference |
| VI. THERMODYNAMIC MEASUREMENTS |
| Name |
Units |
Description |
| ATH |
deg_C |
Ambient Temperature, Deiced |
| ATX |
deg_C |
Ambient Temperature, Reference |
| TASX |
m/s |
Aircraft True Airspeed, Reference |
| TASHC |
m/s |
Aircraft True Airspeed, Humidity Corrected |
| EDPC |
mbar |
Ambient Water Vapor Pressure, Reference |
| THETA |
K |
Potential Temperature |
| THETAE |
K |
Equivalent Potential Temperature (Bolton) |
| TVIR |
deg_C |
Virtual Temperature |
| RHUM |
% |
Relative Humidity |
| RHODX |
gram/m3 |
Absolute Humidity, T-Electric, Reference |
| SPHUM |
gram/kg |
Specific Humidity |
| MR |
gram/kg |
Mixing Ratio, T-Electric |
| VII. WINDS |
| Name |
Units |
Description |
| UI |
m/s |
Wind Vector, East Component |
| VI |
m/s |
Wind Vector, North Component |
| WI |
m/s |
Wind Vector, Vertical Gust Component |
| WS |
m/s |
Horizontal Wind Speed |
| WD |
degree_T |
Horizontal Wind Direction |
| UX |
m/s |
Wind Vector, Longitudinal Component |
| VY |
m/s |
Wind Vector, Lateral Component |
| UIC |
m/s |
GPS-Corrected Wind Vector, East Component |
| VIC |
m/s |
GPS-Corrected Wind Vector, North Component |
| WIC |
m/s |
GPS-Corrected Wind Vector, Vertical Component |
| WSC |
m/s |
GPS-Corrected Horizontal Wind Speed |
| WDC |
degree_T |
GPS-Corrected Horizontal Wind Direction |
| UXC |
m/s |
GPS-Corrected Wind Vector, Longitudinal Component |
| VYC |
m/s |
GPS-Corrected Wind Vector, Lateral Component |
| VIII. RADIATION |
| Name |
Units |
Description |
| RSTB |
deg_C |
Radiometric Surface Temperature |
| IRB |
W/m2 |
Raw Infrared Irradiance, Bottom |
| IRT |
W/m2 |
Raw Infrared Irradiance, Top |
| IRBC |
W/m2 |
Corrected Infrared Irradiance, Bottom |
| IRTC |
W/m2 |
Corrected Infrared Irradiance, Top |
| SWB |
W/m2 |
Shortwave Irradiance, Bottom |
| SWT |
W/m2 |
Shortwave Irradiance, Top |
| SWTC |
W/m2 |
Shortwave Irradiance, Top (Attitude-Corrected) |
| UVB |
W/m2 |
Ultraviolet Irradiance, Bottom |
| UVT |
W/m2 |
Ultraviolet Irradiance, Top |
| IX. CLOUD PHYSICS |
| Name |
Units |
Description |
| PLWCC |
gram/m3 |
Corrected PMS-King Liquid Water Content |
| RICE |
Vdc |
Raw Icing-Rate Indicator |
| XI. PARTICLES |
| Name |
Units |
Description |
| FCNC |
vlpm |
Corrected CN Counter Sample Flow Rate |
| CONCN |
N/cm3 |
Condensation Nuclei (CN) Concentration |
| XII. CHEMISTRY |
| Name |
Units |
Description |
| TEO3C |
ppmv |
TECO Ozone Concentration |
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