Author Topic: MADIS Surface Map QC Codes  (Read 534 times)

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Online galfert

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MADIS Surface Map QC Codes
« on: August 29, 2018, 07:03:49 PM »
Does anyone know what all the MADIS QC Codes stand for?

Go to the MADIS Surface Map
https://madis-data.ncep.noaa.gov/MadisSurface/

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Then zoom in and hoover over any station. You'll see a chart similar to this. What do all the QC Letters stand for?
I've seen V, S, C, and Z. I can assume Z means zero or something like that as I'm not reporting that metric on my station. But I still don't know what the other letters mean and there is no legend on the map. Tried reading the documentation and there is no mention. Tried Googling and nothing.

Some ideas. Very Good, Satisfactory, Caution, Zero....but I'd like some confirmation as to what they mean and what the hierarchy is.

WS-2000 & WS-2902A | ObserverIP | WeatherBridge (Meteobridge)
WU: KFLWINTE111  |  PWSweather: KFLWINTE111
CWOP: FW3708  |  AWEKAS: 14814
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Offline CW2274

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Online galfert

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Re: MADIS Surface Map QC Codes
« Reply #2 on: August 29, 2018, 10:13:51 PM »
Perfect. Thank you! In case the link goes bad I'm posting the relevant info here for future reference:

  ------------------------------
  MADIS QC Information - Surface
  ------------------------------

  QC Data Descriptor Values
  -------------------------

  No QC available:

   Z - Preliminary, no QC

  Automated QC checks:

   C - Coarse pass, passed level 1
   S - Screened, passed levels 1 and 2
   V - Verified, passed levels 1, 2, and 3
   X - Rejected/erroneous, failed level 1
   Q - Questioned, passed level 1, failed 2 or 3

       where level 1 = validity
             level 2 = internal consistency, temporal consistency,
                       statistical spatial consistency checks
             level 3 = spatial consistency check

Subjective intervention:

   G - Subjective good
   B - Subjective bad

  Interpolated/Corrected observations:

   T - Virtual temperature could not be calculated, air temperature passing all QC
       checks has been returned

WS-2000 & WS-2902A | ObserverIP | WeatherBridge (Meteobridge)
WU: KFLWINTE111  |  PWSweather: KFLWINTE111
CWOP: FW3708  |  AWEKAS: 14814
Tele-Pole flag pole is here (not installed yet)