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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-11-30 00:00

amdar
AMDAR WIND VECTOR DIFF (M/S) AEA042 PRESSURE LAYER 0-300 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=22.7703, expected range: -27.1594 39.6669
Severe: rms_fgdepar=22.9588, expected range: -29.0162 42.5362
Severe: avg_pge=0.8618, expected range: -1.3182 0.7500
AMDAR WIND VECTOR DIFF (M/S) AEA057 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=23.9261, expected range: -3.0388 14.1271
Severe: rms_fgdepar=23.9640, expected range: 0.0000 16.6912
Severe: avg_pge=0.8781, expected range: -0.3583 0.5256
AMDAR WIND VECTOR DIFF (M/S) AEA058 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=23.7741, expected range: -17.8343 29.6341
Severe: rms_fgdepar=23.8889, expected range: 0.0000 30.7809
Severe: avg_pge=0.8641, expected range: -1.1355 0.7500
AMDAR WIND VECTOR DIFF (M/S) BAW248 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=23.5367, expected range: -3.3074 17.0177
Severe: rms_fgdepar=23.6295, expected range: 0.0000 23.0385
Severe: avg_pge=0.8765, expected range: -0.4503 0.7500
AMDAR WIND VECTOR DIFF (M/S) KLM701 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=25.8019, expected range: -4.9902 15.8371
Severe: rms_fgdepar=25.8182, expected range: 0.0000 17.5801
Severe: avg_pge=0.8835, expected range: -0.7028 0.7500
AMDAR WIND VECTOR DIFF (M/S) LAN701 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=24.0256, expected range: -8.4972 19.6771
Severe: rms_fgdepar=24.1111, expected range: 0.0000 24.7228
Severe: avg_pge=0.8779, expected range: -0.7801 0.7500
AMDAR WIND VECTOR DIFF (M/S) LAN702 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=20.6294, expected range: 0.0000 21.2322
AMDAR WIND VECTOR DIFF (M/S) TAM8066 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=23.7999, expected range: -2.4816 11.2176
Severe: rms_fgdepar=23.8881, expected range: 0.0000 12.9223
Severe: avg_pge=0.8708, expected range: -0.5206 0.7059
AMDAR WIND VECTOR DIFF (M/S) TAM8146 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=22.4478, expected range: -4.0830 12.4639
Severe: rms_fgdepar=22.5551, expected range: 0.0000 17.4616
Severe: avg_pge=0.8651, expected range: -0.3325 0.4805
AMDAR WIND VECTOR DIFF (M/S) JP9Z4XVZ PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=20.1773, expected range: 0.0000 16.7650
WIGOS AMDAR TEMPERATURE (K) K15FVQJA PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=8.5916, expected range: 0.0000 1.6142
Severe: avg_pge=0.8684, expected range: -0.0299 0.0345
WIGOS AMDAR TEMPERATURE (K) PP5ENVZA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.4134, expected range: 0.0000 2.8970
Severe: avg_pge=0.9077, expected range: -0.2650 0.6746
WIGOS AMDAR TEMPERATURE (K) QNFUILRA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.7131, expected range: 0.0000 2.1477
WIGOS AMDAR WIND VECTOR DIFF (M/S) Z3SUNVZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.1394, expected range: 0.0000 7.4775
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU0868 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=17.4375, expected range: 0.0000 11.3795
Severe: avg_pge=0.8560, expected range: -0.5271 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) XBNUITBA PRESSURE LAYER 300-600 (HP : out of range
Severe: rms_fgdepar=17.8269, expected range: 0.0000 8.9358
WIGOS AMDAR WIND VECTOR DIFF (M/S) 0X3FD5JA PRESSURE LAYER 900-1200 (H : out of range
Severe: rms_fgdepar=16.7488, expected range: 0.0000 7.5581
WIGOS AMDAR Q (G/KG) DVPUOFZA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.8400, expected range: -1.0006 0.7500
ADS-C WIND VECTOR DIFF (M/S) JJ3LILRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=24.0803, expected range: 0.0000 13.8921
ADS-C WIND VECTOR DIFF (M/S) JUEBTRRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.8617, expected range: 0.0000 21.4407