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  MADIS Aircraft Based Reports Quality Control

MADIS Aircraft Based Reports Quality Control

This page provides a detailed description of the quality control (QC) processing and data structures for the Aircraft Based Observations subset of the Aircraft Based dataset. For a general overview of MADIS quality control, click here.

Automated Quality Control

Level 1 QC checks are considered the least sophisticated, level 2 the most sophisticated checks. The following table lists the Aircraft Based variables* that are QC'ed, and click here for the checks that are used:


MADIS ACARS Variables with QC
---------------------------------------------------------------------------------------------------------------
Code       Name                  Max    Level |        Level 1:                   |          Level 2:          
                              Possible        |                                   |                            
                              QC Level        | Validity     Position   Provider  |   Internal      Temporal   
                                              |            Consistency     QC     | Consistency   Consistency  
---------------------------------------------------------------------------------------------------------------
DD        wind direction        1                  X                       X
FF        wind speed            1                  X                       X
U         u wind component      1                  X                       X
V         v wind component      1                  X                       X
T         air temperature       2                  X                       X             X             X
TV        virtual temperature   2                  X                       X             X             X
TD        dewpoint temperature  2                  X                       X             X
RH        relative humidity     2                  X                       X             X
Q         specific humidity     2                  X                       X             X
DPD       dewpoint depression   2                  X                       X             X
AH        absolute humidity     2                  X                       X             X
TASPEED   true air speed        1                                          X
MEDEDR    median EDR            1                                          X            
MAXEDR    maximum EDR           1                                          X            
TURBIDX   turbulence index      1                                          X              
HT        altitude              2                  X                                                   X
P         pressure              2                  X                                                   X
LAT       latitude              1                  X            X
LON       longitude             1                  X            X
ICECOND   icing condition       1                                          X

Internal Consistency Checks
---------------------------

  3   air temperature vs. dewpoint temperature

Provider QC Checks
------------------

- Only the TAMDAR reports have provider QC results.


Last updated 16 March 2017