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  MADIS NOAA Profiler Network Quality Control

MADIS NOAA Profiler Network Quality Control

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


  MADIS NOAA Profiler Network (NPN) Variables with QC
  ------------------------------------------------------------------------------------------
  Code       Name                      Max     Level | Level 1: |         Level 2:          
                                     Possible        |          |                           
                                     QC Level        | Validity |   Internal    Time-Height 
                                                     |          | Consistency   Consistency 
  ------------------------------------------------------------------------------------------
  
  Integrated Profile
  ------------------
  
  DD        wind direction             2                  X            X             X
  FF        wind speed                 2                  X            X             X
  U         u wind component           2                  X            X             X
  V         v wind component           2                  X            X             X
  
  Low Mode Levels
  ---------------
  
  DDL       wind direction             2                  X            X             X
  FFL       wind speed                 2                  X            X             X
  UL        u wind component           2                  X            X             X
  VL        v wind component           2                  X            X             X
  
  High Mode Levels
  ----------------

  DDH       wind direction             2                  X                          X
  FFH       wind speed                 2                  X                          X
  UH        u wind component           2                  X                          X
  VH        v wind component           2                  X                          X


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

    1   Bird contamination check

        (spectral width check on data below 5000 m MSL to locate the
         presence of migrating birds)


Last updated 16 March 2017