Operational Data Checking

An automatic data checking system has been implemented at ECMWF to trigger warnings in case of anomalies affecting the quality or the availability of the data assimilated by the model. Selected statistical parameters (number of observations, bias correction, and mean bias-corrected background, analysis departures and probability of gross error) are checked against an expected range. An appropriate alert message (including a time series plot) is generated if statistics are outside the specified ranges. A severity level (slight, considerable, severe) is assigned to each message depending on how far statistics are from the expected values. Two kinds of ranges are used by the automatic checking: Soft and Hard limits. Soft limits are updated automatically using statistics from the last twenty days (extremes are excluded during this process). Hard limits are adjusted manually when required.

Currently, the automatic checking is limited to data passing through the minimisation process (including VarBC passive data). It's being applied twice a day to the delayed cut-off 4D-VAR cycles (00 and 12) and four times a day to the early delivery assimilation system (00,06,12 and 18).

The alarm system results are based on feedback information from the ECMWF data assimilation and consequently reflect the ECMWF data usage. Although most warnings are related to data problems, they may on occasion also be related to model issues. Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice. ECMWF accepts no responsibility for actions taken on the basis of these results.

Delayed cut-off 4DVAR at 2018-09-18 12:00

gpsro
All COSMIC-1 setting RO bending angles Missing
All COSMIC-1 rising RO bending angles Missing
All COSMIC-6 rising RO bending angles Missing
airep
KLM95R AIREP Wind Vector difference (m/s) 0 40000 : OutOfRange
1 times in the last 10 days for at least one item
Severely: avg(fg_depar)=8, expected range: 0.39 5.10
Severely: rms(fg_depar)=11, expected range: 0.77 5.70
amdar
XCYWUUJA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=10, expected range: 0.62 7.00
Severely: rms(fg_depar)=12, expected range: 0.43 8.20
QH0EISRA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=12, expected range: -0.18 5.70
Severely: rms(fg_depar)=14, expected range: 0.00 6.60
ZR1VD5ZA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: rms(fg_depar)=8, expected range: 0.31 5.60
UAE247 AMDAR Temperature (k) 0 40000 : OutOfRange
Severely: avg(fg_depar)=6, expected range: -3.00 2.80
Severely: rms(fg_depar)=6, expected range: 0.00 1.83
Considerably: freq(qc_pge)=100, expected range: 0.00 75.00
3OBIC1BA 146 Temperature (k) 0 40000 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.00 1.25
FKY0IBBA 146 Temperature (k) 0 40000 : OutOfRange
1 times in the last 10 days for at least one item
Severely: avg(fg_depar)=6, expected range: -1.29 1.24
Severely: rms(fg_depar)=6, expected range: 0.00 1.26
Considerably: freq(qc_pge)=100, expected range: 0.00 75.00
PZLWU1JA 146 Temperature (k) 0 40000 : OutOfRange
Severely: avg(fg_depar)=4, expected range: -0.69 0.69
Severely: rms(fg_depar)=5, expected range: 0.00 1.38
HURKGBJA 146 Temperature (k) 0 40000 : OutOfRange
1 times in the last 10 days for at least one item
Severely: avg(fg_depar)=1, expected range: -0.54 0.50
Severely: rms(fg_depar)=2, expected range: 0.00 1.38
HTIEISRA 146 Temperature (k) 0 40000 : OutOfRange
Severely: rms(fg_depar)=1, expected range: 0.03 1.17
SBEUISRA 146 Temperature (k) 0 40000 : OutOfRange
Severely: rms(fg_depar)=1, expected range: 0.04 1.08
GJK0GBZA 146 Temperature (k) 0 40000 : OutOfRange
Severely: rms(fg_depar)=1, expected range: 0.00 1.04
ESVUISZA 146 Temperature (k) 0 40000 : OutOfRange
Severely: rms(fg_depar)=1, expected range: 0.00 1.14
WIKVGCBA 146 Temperature (k) 40000 70000 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.00 1.17
IOOEOFBA 146 Temperature (k) 40000 70000 : OutOfRange
Severely: rms(fg_depar)=1, expected range: 0.07 1.10
34IUOGBA 146 Temperature (k) 40000 70000 : OutOfRange
Severely: rms(fg_depar)=1, expected range: 0.15 1.02
PZLWU1JA 146 Temperature (k) 40000 70000 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.00 1.15
3LJLP3JA 146 Temperature (k) 40000 70000 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.00 1.21
QB1EOFJA 146 Temperature (k) 40000 70000 : OutOfRange
Severely: rms(fg_depar)=1, expected range: 0.00 1.29
S34VGAZA 146 Temperature (k) 40000 70000 : OutOfRange
Severely: rms(fg_depar)=1, expected range: 0.00 1.31
RCNGUUZA 146 Temperature (k) 40000 70000 : OutOfRange
Severely: rms(fg_depar)=1, expected range: 0.23 0.78
KAQUNVZA 146 Temperature (k) 40000 70000 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.00 1.24
LQTUNVZA 146 Temperature (k) 40000 70000 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.00 1.29
HYNENWZA 146 Temperature (k) 40000 70000 : OutOfRange
Severely: avg(fg_depar)=-2, expected range: -0.91 0.82
Severely: rms(fg_depar)=3, expected range: 0.00 1.20
GKBUNWZA 146 Temperature (k) 40000 70000 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.06 1.06
JP9Z5W79 AMDAR Temperature (k) 70000 101325 : OutOfRange
Severely: avg(fg_depar)=10, expected range: -2.50 2.50
Severely: rms(fg_depar)=10, expected range: 0.00 2.50
Considerably: freq(qc_pge)=100, expected range: 0.00 75.00
AR1UOGBA 146 Temperature (k) 70000 101325 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.00 1.81
OJFUNXBA 146 Temperature (k) 70000 101325 : OutOfRange
Severely: avg(fg_depar)=-2, expected range: -1.36 1.36
TYLKJGJA 146 Temperature (k) 70000 101325 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.00 1.70
LJL0GCRA 146 Temperature (k) 70000 101325 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.00 1.61
W2C0GCZA 146 Temperature (k) 70000 101325 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.10 1.35
JP9Z5W79 AMDAR Temperature (k) 40000 70000 : OutOfRange
Considerably: freq(qc_pge)=100, expected range: 0.00 75.00
In-Situ measurements
All Moored Buoy Surface pressure (Pa) WMO BLOCK 21 0 0 Missing
All TEMP Land Report Temperature (k) WMO BLOCK 67 0 40000 Missing
All TEMP Land Report Temperature (k) WMO BLOCK 67 40000 70000 Missing
All TEMP Land Report Temperature (k) WMO BLOCK 67 70000 101325 Missing
TEMP Land Report Q (g/kg) WMO BLOCK 32 70000 101325 : OutOfRange
Slightly: count(*)=33, expected range: 34.00 82.00
BUOYS
4801617 189 Surface pressure (Pa) : OutOfRange
13 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=71, expected range: 0.00 50.00
1501580 189 Surface pressure (Pa) : OutOfRange
1 times in the last 10 days for at least one item
Severely: avg(fg_depar)=-325, expected range: -83.00 109.00
Severely: rms(fg_depar)=326, expected range: 0.00 115.00
Considerably: freq(qc_pge)=100, expected range: 0.00 75.00
5601601 189 Surface pressure (Pa) : OutOfRange
Severely: rms(fg_depar)=323, expected range: 0.00 113.00
4401605 189 Surface pressure (Pa) : OutOfRange
Severely: rms(fg_depar)=237, expected range: 0.00 128.00
5401585 189 Surface pressure (Pa) : OutOfRange
Severely: rms(fg_depar)=180, expected range: 0.00 113.00
5401586 189 Surface pressure (Pa) : OutOfRange
Severely: rms(fg_depar)=234, expected range: 0.00 142.00
1400567 189 Surface pressure (Pa) : OutOfRange
1 times in the last 10 days for at least one item
Severely: avg(fg_depar)=385, expected range: -148.00 155.00
Severely: rms(fg_depar)=406, expected range: 0.00 193.00
Considerably: freq(qc_pge)=91, expected range: 0.00 75.00
2301514 189 Surface pressure (Pa) : OutOfRange
2 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=83, expected range: 0.00 75.00
4601665 189 Surface pressure (Pa) : OutOfRange
4 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=81, expected range: 0.00 75.00
metar
KPQN METAR Surface pressure (Pa) : OutOfRange
Severely: rms(fg_depar)=157, expected range: 0.00 101.00
KRST METAR Surface pressure (Pa) : OutOfRange
Severely: rms(fg_depar)=219, expected range: 0.00 141.00
KOLU METAR Surface pressure (Pa) : OutOfRange
Severely: rms(fg_depar)=221, expected range: 0.00 147.00
ship
WTER SHIP Report Surface pressure (Pa) : OutOfRange
19 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=93, expected range: 0.00 50.00
44037 Automatic SHIP Report Wind Vector difference (m/s) : OutOfRange
Severely: rms(fg_depar)=8, expected range: 0.00 4.80
41038 Automatic SHIP Report Wind Vector difference (m/s) : OutOfRange
2 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=100, expected range: 0.00 75.00
synop
64810 SYNOP Surface pressure (Pa) : OutOfRange
18 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=97, expected range: 0.00 50.00
61781 170 Surface pressure (Pa) : OutOfRange
2 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=100, expected range: 0.00 50.00
89811 Land Automatic Report Surface pressure (Pa) : OutOfRange
1 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=81, expected range: 0.00 75.00
Radiosondes
72659 109 Temperature (k) 0 40000 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.11 1.86
17095 109 Temperature (k) 40000 70000 : OutOfRange
Severely: avg(fg_depar)=1, expected range: -0.98 0.18