Correspondence of Variables Between Raw Data Files and the Common Data Format
Following is a table that lists the correspondence between variable names in the various USAFR and NOAA data formats, as well as within the codeset and in the Level 1 Common NetCDF Data File (CNDF_L1). This table specifically compares the ARWO version 16.0.1.13 (used in 2012) with the NOAA ASCII and NetCDF formats from that year. Previous years often have fewer variables included in the ASCII listings.
The notation '->' indicates that the variable is not identical, but is rather translated into a different format (e.g. date/time) or different units (e.g. wind speed from knots to meters per second).
An asterisk (*) indicates that the variable is not currently output from the reader subroutine. Most of these * variables are of secondary importance, since they are subsidiary to the primary meteorological variables. These * variables may also provide navigational information that provides reference to the frame of the moving aircraft platform. Currently, these navigational variables are also of secondary importance.
| USAFR ASCII | NOAA ASCII listing | NOAA NetCDF | variable name in reader subroutine | variable name in CNDF_L1 | Data Type in CNDF_L1 |
|---|---|---|---|---|---|---|
Time of day (UTC) | GMT Time (HH:MM:SS) | --- |
| platform_Stime | -> all_platform_Sdatetime_Chr (YYYYMMDDHHSS) | character |
Air Density Ratio | ADR (dimensionless) | --- |
| * air_density_ratio (dimensionless) |
|
|
Angle of Attack | AOA (degrees) | --- |
| attack_angle (degrees) | attack_angle (degrees) | float |
Baro-Corrected Altitude | BCA (millibars) | --- |
| * baro_corrected_altitude (millibars) |
|
|
Baroset Pressure | BSP (millibars) | --- |
| baroset_pressure (millibars) |
|
|
Calibrated Air Speed | CAS (knots) | --- |
| -> calibrated_air_speed (mps) |
|
|
Corrected Static Pressure | CSP (millibars) | Press (millibars) |
| corrected_static_pressure (millibars) | all_platform_pressure (millibars) | float |
Dynamic Pressure | DPR (millibars) | --- |
| dynamic pressure (millibars) |
|
|
GPS Altimeter | GPSA (meters) | --- |
| gps_altimeter (meters) | all_gps_altimeter (meters) | float |
Ground Speed | GS (knots) | GnSpd (mps) |
| -> ground_speed (mps) | all_ground_speed (mps) | float |
Inertial Altimeter | IA (meters) | --- |
| * inertial_altimeter (meters) |
|
|
Inertial Static Pressure | ISP (millibars) | --- |
| * inertial_static_pressure (millibars) |
|
|
Latitude | LAT (deg North) | Lat (deg North) |
| platform_latitude (degrees North) | all_platform_latitude (deg North) | float |
Longitude | LON (deg East) | Lon (deg West) |
| platform_longitude (deg East) | all_platform_longitude (deg East) | float |
Pressure Altitude | PA (millibars) | --- |
| pressure_altitude (meters) | all_pressure_altitude (meters) | float |
Pitch Angle | PITCH (degrees) | --- |
| pitch_angle (degrees) | all_pitch_angle (degress) | float |
Pressure Ratio | PR (dimensionless) | --- |
| pressure_ratio (dimensionless) |
|
|
Total Pressure | PT (millibars) | --- |
| total_pressure (millibars) |
|
|
Radar Altitude | RA (meters) | RdAlt (meters) |
| radar_altitude (meters) | all_radar_altitude (meters) | float |
Roll angle | ROLL (degrees) | --- |
| roll_angle (degrees) | all_roll_angle (degrees) | float |
Side Slip | SS (degrees) | --- |
| side_slip (degrees) | all_side_slip (degrees) | float |
Corrected Static Air Temperature | TA (deg C) | Tempr (deg C) |
| corrected_static_air_temperature (deg C) | all_temperature (deg C) | float |
True Air Speed | TAS (knots) | TAS (mps) |
| -> true_air_speed (mps) | all_true_air_speed (mps) | float |
True Heading | THD (degrees) | Head (degrees) |
| true_heading (degrees) | all_true_heading (degrees) | float |
Track | TRK (degrees) | Track (degrees) |
| track (degrees) | all_track (degrees) | float |
Total Temperature | TT (deg C) | --- |
| total_temperature (deg C) |
|
|
Velocity East | VE (knots) | --- |
| * -> velocity_east (mps) |
|
|
Velocity North | VN (knots) | --- |
| * -> velocity_north (mps) |
|
|
Vertical Velocity | V V (knots) | VtWnd (mps) |
| -> vertical_velocity (mps) | -> all_vertical_velocity (mps) | float |
Wind Direction | WDIR (deg from North) | WndDr (deg from North) |
| wind_dir (deg from North) | all_wind_direction (deg from North) | float |
Wind Speed | WSPD (knots) | WndSpd (mps) |
| -> wind_speed (mps) | -> all_wind_speed (mps) | float |
Dew Point Temperature - Digital | TD (deg C) | Dewpt (deg C) |
| dew_point_temperature_digital (deg C) | all_dew_point_temperature (deg C) | float |
Rain Rate (SFMR) | RR (mm/hr) | --- |
| sfmr_rain_rate (mm/hr) | all_sfmr_rain_rate (mm/hr) | float |
Surface Wind Speed (SFMR) | SWS (knots) | --- |
| -> sfmr_surface_wind_speed (mps) | -> all_sfmr_surface_wind_speed (mps) | float |
Course Correction | CC (degrees) | --- |
| course_correction (degrees) |
|
|
Deviation Value | DVAL (meters) | D Val (meters) |
| deviation_value (meters) | all_deviation_value (meters) | float |
Geopotential Altitude | GA (meters) | GeoAl (meters) |
| geopotential_altitude (meters) | all_geopotential_altitude (meters) | float |
Height of Standard Surface | HSS (meters) | --- |
| height_of_standard_surface (meters) |
|
|
Sea Level Pressure | SLP (millibars) | SfcPr (millibars) |
| sea_level_pressure (millibars) | all_sea_level_pressure (millibars) | float |
Wind Direction (calculated) | WD (deg from North) | --- |
| * wind_dir_calculated (deg from North) |
|
|
Wind Speed (calculated) | WS (knots) | --- |
| * -> wind_speed_calculated (mps) |
|
|
Parameter Validity Flags | Valid Flags (binary) | --- |
| * parameter_validity_flags (binary) |
|
|
Data Source Tags | Source Tags (hex) | --- |
| * data_source_tags (hex) |
|
|
Satellite Communications Status | SATCOM (binary) | --- |
| * satcom_status (binary) |
|
|
AVAPS Communications Status | AVAPS (binary) | --- |
| * avaps_status (binary) |
|
|
Dew Point Temperature - Analog (deprecated) | TDA (deg C) | --- |
| * dew_point_temperature_analog (deg C) |
|
|
Dew Point Temperature - Digital (deprecated) | TDD (deg C) | --- |
| * dew_point_temperature_digital (deg C) |
|
|
Motorola ARC-210 Radio Status (deprecated) | ARC210 (binary) | --- |
| * arc210_radio_status (binary) |
|
|
Analog/Digital Card Status (deprecated) | AD (binary) | --- |
| * analog_digital_card_status (binary) |
|
|
Digital Dew Point Hygrometer Status | DDPH (binary) | --- |
| * dew_point_hygrometer_digital (binary) |
|
|
Main Aircraft Data Bus | 1553 (digital) | --- |
| * var1533 (digital) |
|
|
Stepped Frequency Microwave Radiometer Output | SFMR (hexadecimal) | --- |
| * sfmr_output (hexadecimal) |
|
|
Liquid Water Content J-W Fuselage | --- |
|
| cloud_liquid_water (g/m^3) | all_cloud_liquid_water (g/m^3) | float |
Mixing Ratio | --- | MixR (g/m^3) |
|
|
|
|
Equivalent Potential Temperature | --- | ThetaE (deg C*?*) |
|
|
|
|