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MADIS Radiometer Quality Control

This page provides a detailed description of the quality control (QC) processing and data structures for the radiometer 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 radiometer variables* that are QC'ed, and click here for the checks that are used:

  MADIS Radiometer Variables with QC
  Code       Name                                Max     Level | Level 1: | Level 2:          
                                               Possible        |          |                           
                                               QC Level        | Validity |  Internal    
                                                               |          | Consistency  
  T         air temperature                      2                  X            X
  TV        virtual temperature                  2                  X            X
  TD        dewpoint temperature                 2                               X
  RH        relative humidity                    2                               X
  Q         specific humidity                    2                               X
  DPD       dewpoint depression                  2                               X
  AH        absolute humidity                    2                               X
  CLD       cloud liquid density                 2                               X
  Single-level Observations
  CBH       cloud base height                    2                               X
  CBT       infrared cloud base temperature      2                               X
  ILW       integrated liquid water              2                               X
  PWV       integrated water vapor               2                               X
  Internal Consistency Checks
    1   Rain contamination check 
    2   Integrated liquid check (ILW > 1.5 mm)

Last updated 16 March 2017