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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
(ARWO ver. 16.0.1.3)

NOAA ASCII listing
(circa 2012)

NOAA NetCDF
(circa 2012)

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)
-> all_timeoffset (seconds since 1970-01-01 00:00:00.0 UTC)

character
integer

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*?*)

 

 

 

 

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