MADIS Meteorological Surface Quality Control
This page provides a detailed description of the quality control (QC) processing and data structures for the meteorological surface dataset.
For a general overview of MADIS quality control, click here.
Automated Quality Control
MADIS Quality Control Checks
MADIS Surface Variables with QC
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Code Name Max | Level 1: | Level 2: | Level 3:
Possible | | |
QC Level | Validity | Internal Temporal Statistical | Spatial
| | Consistency Consistency Spatial | Consistency
Consistency |
------------------------------------------------------------------------------------------------------------------------
TD dewpoint temperature 3 X 3 X* X X*
TD1H hourly average dewpoint temperature 2 X X
TD15M dewpoint temperature - 15m 3 X X X X
TD1HCHG 1 hour dewpoint temperature change 1 X
RH relative humidity 3 X 3 X X X
RH1H hourly average relative humidity 2 X X
RH15M relative humidity - 15m 3 X X X X
RH1HCHG 1 hour relative humidity change 1 X
Q specific humidity 3 X 3 X X X
Q1H hourly average specific humidity 2 X X
Q15M specific humidity - 15m 3 X X X X
Q1HCHG 1 hour specific humidity change 1 X
DPD dewpoint depression 3 X 3 X X X
DPD1H hourly average dewpoint depression 2 X X
DPD15M dewpoint depression - 15m 3 X X X X
DPD1HC 1 hour dewpoint depression change 1 X
AH absolute humidity 3 X 3 X X X
AH1H hourly average absolute humidity 2 X X
AH15M absolute humidity - 15m 3 X X X X
AH1HCHG 1 hour absolute humidity change 1 X
WVMR water vapor mixing ratio 3 X 3 X X X
WVMR15M water vapor mixing ratio - 15m 3 X X X X
WVMR1HC 1 hour water vapor mixing ratio chng 1 X
ALTSE altimeter 3 X X X X
ALTS15M altimeter - 15m 3 X X X X
AL1HCHG 1 hour altimeter change 1 X
PT3 3 hour pressure change 2 X 2
SLP sea level pressure 3 X 1 X X X
P station pressure 3 X 1 X X X
P15M station pressure - 15m 3 X X X X
T air temperature 3 X 3 X X X
T1H hourly average temperature 2 X X
T15M air temperature - 15m 3 X X X X
T1HCHG 1 hour temperature change 1 X
ARCHVT archived temperature 3 X X X X
TV virtual temperature 3 X 3 X X X
TV1H hourly average virtual temperature 2 X X
TV15M virtual temperature - 15m 3 X X X X
TV1HCHG 1 hour virtual temperature change 1 X
DD wind direction 3 X X X X
DD1H hourly average wind direction 1 X
DD15M average wind direction - 15m 1 X
DDM15M wind direction mean vector - 15m 1 X
DDU15M mean unit vector wind dir - 15m 1 X
DD24H daily average wind direction 1 X
DDSD15M wind direction std dev - 15m 1 X
FF wind speed 3 X X X X
FF1H hourly average wind speed 2 X X
FF15M wind speed - 15m 3 X X X X
FF24H daily average wind speed 1 X
FFSD15M wind speed std dev - 15m 3 X X X X
U u wind component 3 X X X X
U1H hourly average u wind component 2 X X
U15M u mean unit vector wind comp - 15m 3 X X X X
U24H daily average u wind component 1 X
USD15M u wind component std dev - 15m 3 X X X X
V v wind component 3 X X X X
V1H hourly average v wind component 2 X X
V15M v mean unit vector wind comp - 15m 3 X X X X
V24H daily average v wind component 1 X
VSD15M v wind component std dev - 15m 3 X X X X
VIS visibility 1 X
PCP5M accumulated precip - 5m 1 X
PCP15M accumulated precip - 15m 1 X
PCP1H accumulated precip - 1h 1 X
PCP3H accumulated precip - 3h 1 X
PCP6H accumulated precip - 6h 1 X
PCP12H accumulated precip - 12h 1 X
PCP18H accumulated precip - 18h 1 X
PCP24H accumulated precip - 24h 1 X
PCPLM accum. precip - since local midnight 1 X
PCPUTCM accum. precip - since UTC midnight 1 X
PCPCDAY accum. precip - local calendar day 1 X
PCPUDAY accum. precip - user-defined day 1 X
PCPRATE precipitation rate 1 X
ARCHPCP 1h archived precip accumulation 1 X
SOILMP soil moisture percent 1 X
SOILM2 soil moisture percent - 2 inch 1 X
SOILM4 soil moisture percent - 4 inch 1 X
SOILM8 soil moisture percent - 8 inch 1 X
SOILM20 soil moisture percent - 20 inch 1 X
SOILM40 soil moisture percent - 40 inch 1 X
SOILT soil temperature 2 X X
SOILT2 soil temperature - 2 inch 2 X X
SOILT4 soil temperature - 4 inch 2 X X
SOILT8 soil temperature - 8 inch 2 X X
SOILT20 soil temperature - 20 inch 2 X X
SOILT40 soil temperature - 40 inch 2 X X
DDGUST wind dir at gust 1 X
FFGUST wind gust 1 X
FF24MAX daily maximum wind speed 1 X
T24MIN 24 hour minimum temperature 1 X
T24MAX 24 hour maximum temperature 1 X
DDMAX1H wind dir at hourly max wind speed 1 X
FFMAX1H hourly maximum wind speed 2 X X
SNOWC snow cover 1 X
SNOW6H snow fall - 6h 1 X
SNOW24H snow fall - 24h 1 X
SST sea surface temperature 2 X 5 X
RDTX Road temperature - sensor X (1-N) 2 X 10 *
Internal Consistency Checks
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1 sea level pressure vs. station pressure
2 3h pressure change vs. station pressure
3 air temperature vs. dewpoint temperature
5 sea surface temperature vs. air temperature
Claurs only Internal Consistency Checks
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10 Co-located instruments check
Clarus only Temporal Consistency
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* ddddd
Clarus only Spatial Consistency
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* dddd
Last updated 15 March 2017
