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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2018-04-14 00:00

gpsro
All TERRA-SAR-X setting RO bending angles Missing
All TANDEM-X rising RO bending angles Missing
COSMIC-1 setting RO bending angles 40-50 km : OutOfRange
Considerably: avg_n_fg_depar=0, expected range: -0.05 0.20
COSMIC-6 rising RO bending angles 20-30 km : OutOfRange
Considerably: avg_n_fg_depar=0, expected range: -0.16 0.07
COSMIC-1 setting RO bending angles 30-40 km : OutOfRange
Slightly: avg_n_fg_depar=0, expected range: 0.05 0.41
COSMIC-6 rising RO bending angles 0-10 km : OutOfRange
Slightly: avg_n_fg_depar=0, expected range: -0.14 0.10
mhs
METOP-B MHS 3 allsky radiances : OutOfRange
7 times in the last 10 days for at least one item
Slightly: avg(biascorr)=0, expected range: 0.39 0.60
NOAA-18 MHS 3 allsky radiances : OutOfRange
14 times in the last 10 days for at least one item
Slightly: avg(biascorr)=0, expected range: 0.32 0.54
Ozone
METOP-B GOME-2 layer ozone, top pressure 1 : OutOfRange
10 times in the last 10 days for at least one item
Slightly: stdev_fg_depar_du=5, expected range: 5.30 5.83
NOAA-19 SBUV layer ozone, top pressure 63940 : OutOfRange
16 times in the last 10 days for at least one item
Slightly: stdev_fg_depar_du=2, expected range: 1.09 2.27
ssmis
DMSP-18 SSMIS 7 allsky radiances : OutOfRange
16 times in the last 10 days for at least one item
Slightly: avg(biascorr)=5, expected range: 5.81 6.20
DMSP-18 SSMIS 11 allsky radiances : OutOfRange
3 times in the last 10 days for at least one item
Slightly: avg(biascorr)=0, expected range: -0.13 0.04
airep
KLM678 AIREP Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=18, expected range: -0.60 5.70
Severely: rms(fg_depar)=18, expected range: 0.00 8.20
Considerably: freq(qc_pge)=83, expected range: 0.00 70.00
UAL990 AIREP Wind Vector difference (m/s) 0 40000 : OutOfRange
1 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=72, expected range: 0.00 70.00
NAX7001 AIREP Wind Vector difference (m/s) 0 40000 : OutOfRange
1 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=75, expected range: 0.00 70.00
SVA061 AIREP Wind Vector difference (m/s) 0 40000 : OutOfRange
1 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=100, expected range: 0.00 70.00
ETH502 AIREP Wind Vector difference (m/s) 0 40000 : OutOfRange
1 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=92, expected range: 0.00 70.00
AMX004 AIREP Wind Vector difference (m/s) 0 40000 : OutOfRange
Considerably: freq(qc_pge)=71, expected range: 0.00 70.00
ACA844 AIREP Wind Vector difference (m/s) 0 40000 : OutOfRange
Considerably: freq(qc_pge)=70, expected range: 0.00 70.00
AMX008 AIREP Wind Vector difference (m/s) 0 40000 : OutOfRange
Considerably: freq(qc_pge)=73, expected range: 0.00 70.00
amdar
AHKITQBA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: rms(fg_depar)=11, expected range: 0.61 6.30
221GU1JA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=10, expected range: 1.19 6.90
Severely: rms(fg_depar)=11, expected range: 1.44 7.50
TT2YEVJA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=11, expected range: -0.34 6.00
Severely: rms(fg_depar)=14, expected range: 0.00 7.10
0RDYBYZA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: rms(fg_depar)=12, expected range: 0.00 7.20
CR4UOFZA 146 Q (g/kg) 0 40000 : OutOfRange
Severely: avg(fg_depar)=0, expected range: -0.00 0.00
Severely: rms(fg_depar)=0, expected range: 0.00 0.00
AU0158 AMDAR Temperature (k) 40000 70000 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.00 1.63
42ZEILJA 146 Temperature (k) 40000 70000 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.00 1.39
14HUILJA 146 Temperature (k) 40000 70000 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.00 1.44
FICYFRJA 146 Temperature (k) 40000 70000 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.05 1.22
31GEOGRA 146 Temperature (k) 40000 70000 : OutOfRange
Severely: rms(fg_depar)=1, expected range: 0.17 1.11
IH4KCORA 146 Temperature (k) 40000 70000 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.00 1.44
BRRUNVRA 146 Temperature (k) 40000 70000 : OutOfRange
Severely: avg(fg_depar)=-2, expected range: -1.24 0.98
Severely: rms(fg_depar)=2, expected range: 0.00 1.65
HT5KP3ZA 146 Temperature (k) 40000 70000 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.00 1.56
K52ENVZA 146 Temperature (k) 40000 70000 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.00 1.14
0RDYBYZA 146 Temperature (k) 40000 70000 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.07 1.21
CNJCA111 AMDAR Temperature (k) 70000 101325 : OutOfRange
Severely: rms(fg_depar)=3, expected range: 0.07 1.91
BSCFGHBA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Considerably: freq(qc_pge)=100, expected range: 0.00 70.00
UDGEC5JA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Considerably: freq(qc_pge)=71, expected range: 0.00 70.00
2CGXUXJA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Considerably: freq(qc_pge)=75, expected range: 0.00 70.00
WN5UC5RA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Considerably: freq(qc_pge)=87, expected range: 0.00 70.00
Atmospheric Motion Vector
All NOAA-15 IR 0 40000 Missing
In-Situ measurements
All SYNOP Surface pressure (Pa) WMO BLOCK 92 0 0 Missing
All European Wind Profiler Wind Vector difference (m/s) WMO BLOCK 11 0 400 Missing
All AIREP Wind Vector difference (m/s) Asia 70000 101325 Missing
All AIREP Wind Vector difference (m/s) Indian Ocean 70000 101325 Missing
All Moored Buoy Surface pressure (Pa) WMO BLOCK 28 0 0 Missing
All PILOT Wind Vector difference (m/s) WMO BLOCK 70 0 40000 Missing
All TEMP Land Report Temperature (k) WMO BLOCK 62 0 40000 Missing
All TEMP Land Report Temperature (k) WMO BLOCK 62 40000 70000 Missing
All TEMP Land Report Temperature (k) WMO BLOCK 62 70000 101325 Missing
All TEMP Land Report Temperature (k) WMO BLOCK 65 70000 101325 Missing
All TEMP Land Report Temperature (k) WMO BLOCK 88 40000 70000 Missing
All TEMP Land Report Temperature (k) WMO BLOCK 88 70000 101325 Missing
Drifter Buoy Surface pressure (Pa) WMO BLOCK 14 0 0 : OutOfRange
1 times in the last 10 days for at least one item
Considerably: rms(fg_depar)=137, expected range: 7.30 95.00
Drifter Buoy Surface pressure (Pa) WMO BLOCK 72 0 0 : OutOfRange
6 times in the last 10 days for at least one item
Considerably: rms(fg_depar)=145, expected range: 0.00 105.00
Slightly: count(*)=84, expected range: 16.20 83.00
Japanese Wind Profiler Wind Vector difference (m/s) WMO BLOCK 47 0 400 : OutOfRange
1 times in the last 10 days for at least one item
Slightly: count(*)=762, expected range: -470.00 650.00
PILOT Wind Vector difference (m/s) WMO BLOCK 74 0 40000 : OutOfRange
Slightly: rms(fg_depar)=8, expected range: 2.50 7.60
TEMP Land Report Wind Vector difference (m/s) WMO BLOCK 56 0 40000 : OutOfRange
Slightly: rms(fg_depar)=6, expected range: 1.95 5.90
BUOYS
1400567 189 Surface pressure (Pa) : OutOfRange
1 times in the last 10 days for at least one item
Severely: avg(fg_depar)=547, expected range: -158.00 160.00
Severely: rms(fg_depar)=549, expected range: 0.00 156.00
Considerably: freq(qc_pge)=100, expected range: 0.00 70.00
1601567 189 Surface pressure (Pa) : OutOfRange
Severely: rms(fg_depar)=232, expected range: 0.00 109.00
3301530 189 Surface pressure (Pa) : OutOfRange
1 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=75, expected range: 0.00 70.00
metar
KDWH METAR Surface pressure (Pa) : OutOfRange
Severely: rms(fg_depar)=219, expected range: 0.00 144.00
KAUM METAR Surface pressure (Pa) : OutOfRange
Severely: rms(fg_depar)=244, expected range: 0.00 138.00
KCXO METAR Surface pressure (Pa) : OutOfRange
Severely: rms(fg_depar)=257, expected range: 0.00 149.00
KJBR METAR Surface pressure (Pa) : OutOfRange
Severely: rms(fg_depar)=192, expected range: 0.00 124.00
DAOV METAR Surface pressure (Pa) : OutOfRange
Severely: rms(fg_depar)=299, expected range: 0.00 178.00
KADW METAR Surface pressure (Pa) : OutOfRange
Severely: rms(fg_depar)=381, expected range: 0.00 210.00
SVMI METAR Surface pressure (Pa) : OutOfRange
Considerably: freq(qc_pge)=91, expected range: 0.00 70.00
ship
V7BY3 SHIP Report Wind Vector difference (m/s) : OutOfRange
Severely_persistent: freq(qc_pge)=52, expected range: 0.00 50.00
46206 Automatic SHIP Report Wind Vector difference (m/s) : OutOfRange
9 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=58, expected range: 0.00 50.00
PHET SHIP Report Wind Vector difference (m/s) : OutOfRange
4 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=52, expected range: 0.00 50.00
V7BY3 SHIP Report Surface pressure (Pa) : OutOfRange
4 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=58, expected range: 0.00 50.00
A8BL4 SHIP Report Surface pressure (Pa) : OutOfRange
Severely_persistent: freq(qc_pge)=72, expected range: 0.00 50.00
42361 Automatic SHIP Report Wind Vector difference (m/s) : OutOfRange
Considerably: freq(qc_pge)=100, expected range: 0.00 70.00
VTFG Automatic SHIP Report Surface pressure (Pa) : OutOfRange
8 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=100, expected range: 0.00 70.00
synop
40942 SYNOP Surface pressure (Pa) : OutOfRange
19 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=100, expected range: 0.00 50.00
08271 170 Surface pressure (Pa) : OutOfRange
1 times in the last 10 days for at least one item
Severely: avg(fg_depar)=-406, expected range: -145.00 148.00
Severely: rms(fg_depar)=406, expected range: 0.00 120.00
Considerably: freq(qc_pge)=100, expected range: 0.00 70.00
91938 170 Surface pressure (Pa) : OutOfRange
Severely: avg(fg_depar)=101, expected range: -128.00 23.00
71911 170 Surface pressure (Pa) : OutOfRange
Considerably: freq(qc_pge)=75, expected range: 0.00 70.00
38705 SYNOP Surface pressure (Pa) : OutOfRange
1 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=75, expected range: 0.00 70.00
08345 170 Surface pressure (Pa) : OutOfRange
4 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=90, expected range: 0.00 70.00
62007 SYNOP Surface pressure (Pa) : OutOfRange
1 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=80, expected range: 0.00 70.00
01089 170 Surface pressure (Pa) : OutOfRange
1 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=91, expected range: 0.00 70.00
47189 Land Automatic Report Surface pressure (Pa) : OutOfRange
4 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=100, expected range: 0.00 70.00
Radiosondes
59134 TEMP Land Report Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: rms(fg_depar)=7, expected range: 0.37 5.10
56137 TEMP Land Report Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=15, expected range: -1.85 9.30
Severely: rms(fg_depar)=20, expected range: 0.00 10.80
72649 109 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=10, expected range: 0.75 5.60
Severely: rms(fg_depar)=11, expected range: 0.81 6.50
42971 TEMP Land Report Temperature (k) 0 40000 : OutOfRange
Severely: avg(fg_depar)=-3, expected range: -1.28 2.70
Severely: rms(fg_depar)=7, expected range: 0.00 4.00
20744 TEMP Land Report Temperature (k) 0 40000 : OutOfRange
Severely: rms(fg_depar)=3, expected range: 0.00 2.10
47155 109 Q (g/kg) 0 40000 : OutOfRange
Severely: avg(fg_depar)=0, expected range: -0.00 0.00
71934 109 Q (g/kg) 40000 70000 : OutOfRange
Severely: rms(fg_depar)=0, expected range: 0.00 0.00
72649 109 Q (g/kg) 40000 70000 : OutOfRange
Severely: avg(fg_depar)=0, expected range: -0.00 0.00
17516 109 Temperature (k) 70000 101325 : OutOfRange
Severely: rms(fg_depar)=4, expected range: 0.00 1.84
72558 109 Q (g/kg) 70000 101325 : OutOfRange
Severely: rms(fg_depar)=0, expected range: 0.00 0.00
72440 109 Q (g/kg) 0 40000 : OutOfRange
Considerably: freq(qc_pge)=83, expected range: 0.00 70.00
42361 TEMP Land Report Temperature (k) 0 40000 : OutOfRange
Considerably: freq(qc_pge)=100, expected range: 0.00 70.00