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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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

Early delivery 4D-VAR at 2019-04-18 06:00

Geostationary CSR
METEOSAT-11 SEVIRI 8 radiances : OutOfRange
6 times in the last 10 days for at least one item
Slightly: avg(biascorr)=0, expected range: -0.13 0.08
gpsro
All TANDEM-X rising RO bending angles Missing
All COSMIC-6 rising RO bending angles Missing
All TERRA-SAR-X setting RO bending angles Missing
iasi
METOP-A IASI 515 radiances : OutOfRange
Slightly: stdev(fg_depar)=0, expected range: 0.33 0.41
amdar
MX0004 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=8, expected range: 0.32 5.40
Severely: rms(fg_depar)=9, expected range: 0.33 6.10
WU30GBBA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: rms(fg_depar)=12, expected range: 0.00 8.20
LXGICIBA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: rms(fg_depar)=13, expected range: 0.00 8.70
5UNIXOBA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: rms(fg_depar)=14, expected range: 0.00 8.40
MT1WUUBA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=12, expected range: -0.91 7.10
Severely: rms(fg_depar)=13, expected range: 0.00 8.20
BRLHQVBA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=17, expected range: -1.78 8.00
Severely: rms(fg_depar)=19, expected range: 0.00 9.40
GEHGUWBA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=11, expected range: 0.45 5.60
Severely: rms(fg_depar)=14, expected range: 0.67 6.00
VKNGUWBA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=10, expected range: -0.35 5.90
Severely: rms(fg_depar)=11, expected range: 0.00 7.10
H1PWUWBA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=11, expected range: -0.53 6.60
Severely: rms(fg_depar)=14, expected range: 0.00 7.30
GEP0GBJA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=12, expected range: -1.25 6.60
Severely: rms(fg_depar)=13, expected range: 0.00 7.60
JMJ0GCJA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: rms(fg_depar)=12, expected range: 0.00 7.60
LUJVGARA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=9, expected range: -0.03 5.60
Severely: rms(fg_depar)=9, expected range: 0.00 6.40
LDRKYARA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: rms(fg_depar)=14, expected range: 0.00 8.40
NS2ICIRA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=12, expected range: -1.47 7.20
Severely: rms(fg_depar)=14, expected range: 0.00 8.50
NFBYCIRA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: rms(fg_depar)=12, expected range: 0.00 8.10
MVUYEJRA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=11, expected range: -1.21 7.20
TXXWUURA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: rms(fg_depar)=17, expected range: 0.00 9.60
LJDGU1ZA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=13, expected range: -0.76 6.80
Severely: rms(fg_depar)=14, expected range: 0.00 8.00
PP2KJFZA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=9, expected range: -0.43 5.40
Severely: rms(fg_depar)=11, expected range: 0.00 7.00
CZBEOFZA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=11, expected range: -0.68 5.80
Severely: rms(fg_depar)=12, expected range: 0.00 6.60
TN5GUUZA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=9, expected range: -0.56 5.90
Severely: rms(fg_depar)=10, expected range: 0.00 6.40
EU1090 146 Temperature (k) 0 40000 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.00 1.15
3KK0GCBA 146 Temperature (k) 0 40000 : OutOfRange
Severely: rms(fg_depar)=3, expected range: 0.00 2.20
NWCCTPZA 146 Temperature (k) 0 40000 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.00 1.44
JOHWUUBA 146 Q (g/kg) 40000 70000 : OutOfRange
Severely: avg(fg_depar)=0, expected range: -0.00 0.00
Severely: rms(fg_depar)=0, expected range: 0.00 0.00
SKQENWJA 146 Temperature (k) 40000 70000 : OutOfRange
Severely: avg(fg_depar)=-3, expected range: -1.08 0.93
Severely: rms(fg_depar)=4, expected range: 0.00 1.77
MZNWU1ZA 146 Temperature (k) 70000 101325 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.00 1.54
Atmospheric Motion Vector
All NOAA-19 IR 0 40000 Missing
All AQUA cloudy WV 0 40000 Missing
NOAA-15 IR 70000 110000 : OutOfRange
5 times in the last 10 days for at least one item
Slightly: count(*)=1, expected range: 2.00 17.90
In-Situ measurements
All SYNOP RH2m (%s) WMO BLOCK 73 70000 101325 Missing
All SYNOP RH2m (%s) WMO BLOCK 93 70000 101325 Missing
All PILOT Wind Vector difference (m/s) WMO BLOCK 71 0 40000 Missing
All European Wind Profiler Wind Vector difference (m/s) 02 0 40000 Missing
All TEMP Land Report Temperature (k) 06 0 40000 Missing
All TEMP Land Report Temperature (k) 06 40000 70000 Missing
All TEMP Land Report Temperature (k) 06 70000 101325 Missing
All TEMP Land Report Temperature (k) WMO BLOCK 71 0 40000 Missing
All TEMP Land Report Temperature (k) WMO BLOCK 71 40000 70000 Missing
All TEMP Land Report Temperature (k) WMO BLOCK 71 70000 101325 Missing
SYNOP Surface pressure (Pa) WMO BLOCK 38 0 0 : OutOfRange
Considerably: rms(fg_depar)=172, expected range: 35.00 140.00
TEMP Land Report Temperature (k) 01 0 40000 : OutOfRange
Considerably: avg(fg_depar)=0, expected range: -0.12 0.37
SYNOP Surface pressure (Pa) WMO BLOCK 73 0 0 : OutOfRange
5 times in the last 10 days for at least one item
Slightly: count(*)=13, expected range: 13.70 17.90
BUOYS
1501522 189 Surface pressure (Pa) : OutOfRange
3 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=58, expected range: 0.00 50.00
1601522 189 Surface pressure (Pa) : OutOfRange
38 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=98, expected range: 0.00 50.00
5401633 189 Surface pressure (Pa) : OutOfRange
17 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=58, expected range: 0.00 50.00
2200103 Moored Buoy 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 75.00
4101742 189 Surface pressure (Pa) : OutOfRange
1 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=100, expected range: 0.00 75.00
ship
VRRD7 SHIP Report Surface pressure (Pa) : OutOfRange
13 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=72, expected range: 0.00 50.00
9V9404 SHIP Report Surface pressure (Pa) : OutOfRange
17 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=100, expected range: 0.00 50.00
YJUP4 Automatic SHIP Report Surface pressure (Pa) : OutOfRange
11 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=81, expected range: 0.00 50.00
63055 Automatic SHIP Report Wind Vector difference (m/s) : OutOfRange
4 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=100, expected range: 0.00 75.00
V7AE7 SHIP Report Surface pressure (Pa) : OutOfRange
5 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=83, expected range: 0.00 75.00
synop
71648 170 Surface pressure (Pa) : OutOfRange
18 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=100, expected range: 0.00 75.00