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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-08-14 00:00

amsua
METOP-C/AMSUA RADIANCES CHANNEL 7 : out of range
Severe: stdev_fgdepar=0.2262, expected range: 0.1443 0.1607
NOAA-19/AMSUA RADIANCES CHANNEL 9 : out of range
Considerable: avg_biascorr=0.0455, expected range: 0.0606 0.1119
cris
NPP/CRIS RADIANCES (118 channels affected) : out of range
2 times in the last 10 days for at least one item
Severe: avg_biascorr=0.2562, expected range: 0.0664 0.2148
NPP/CRIS RADIANCES (150 channels affected) : out of range
Severe: obs_number=9093.0000, expected range: 4279.2728 6275.4324
NPP/CRIS RADIANCES (25 channels affected) : out of range
Severe: stdev_fgdepar=3.2998, expected range: 0.1915 0.2784
Geostationary CSR
GOES-15/IMAGER RADIANCES CHANNEL 3 : out of range
Severe: avg_fgdepar=0.7241, expected range: -0.1810 0.2793
Radiosondes
LAND TEMP TEMPERATURE (K) 78384 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=8.3499, expected range: 0.0000 2.9072
LAND TEMP TEMPERATURE (K) 43369 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=10.7348, expected range: 0.3840 3.7162
LAND TEMP Q (G/KG) 40430 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=8.9766, expected range: 0.0000 2.9946
LAND TEMP WIND VECTOR DIFF (M/S) 36096 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.9081, expected range: 0.0000 5.8088
LAND TEMP WIND VECTOR DIFF (M/S) 29839 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_pge=0.8179, expected range: -0.9397 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 43369 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.5323, expected range: 2.4989 11.5281
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 300-600 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=0.3429, expected range: 0.0000 0.1333
HIGH RESO SEA TEMP Q (G/KG) PRESSURE LAYER 0-300 (HPA) : missing
1 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 0.0000 183.3591
amdar
WIGOS AMDAR TEMPERATURE (K) EU4451 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=6.9025, expected range: 0.0000 1.9212
WIGOS AMDAR TEMPERATURE (K) EU0666 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=6.4317, expected range: 0.0000 1.8069
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU8535 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.1674, expected range: 0.0000 8.2197
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 43369 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=28.1639, expected range: 0.1501 11.8636
LAND PILOT WIND VECTOR DIFF (M/S) 61660 (2 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8283, expected range: -0.5525 0.7500
LAND PILOT WIND VECTOR DIFF (M/S) 61660 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=16.4256, expected range: 1.0447 14.5457
synop
MANUAL LAND SYNOP RH2M (%) 40016 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9995, expected range: -1.6981 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42711 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8173, expected range: -1.3382 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 86221 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8022, expected range: -0.7667 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42523 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9013, expected range: -1.0057 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43133 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9019, expected range: 0.3235 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 60417 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8039, expected range: 0.3328 0.7500
BUFR LAND SYNOP RH2M (%) 71774 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9784, expected range: -0.9229 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 41301 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9729, expected range: -0.8753 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 35167 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9993, expected range: -0.6629 0.7500
MANUAL LAND SYNOP RH2M (%) 63210 : out of range
Severe: rms_fgdepar=30.9817, expected range: 0.0000 23.0455
Severe: avg_pge=0.9439, expected range: -0.3225 0.3723
MANUAL LAND SYNOP RH2M (%) 68572 : out of range
Severe: avg_pge=0.9200, expected range: -1.4335 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43260 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8318, expected range: -1.3832 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 86260 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8867, expected range: -1.1641 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83980 : out of range
Severe: avg_pge=0.8243, expected range: -1.1979 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43042 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=786.2430, expected range: 0.0000 405.1910
Severe: avg_pge=0.9276, expected range: -1.1835 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 82143 : out of range
Severe: avg_pge=0.8065, expected range: -0.9866 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 63125 : out of range
Severe: rms_fgdepar=850.9704, expected range: 0.0000 273.1470
Severe: avg_pge=0.9328, expected range: -0.9116 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 91425 : out of range
Severe: rms_fgdepar=709.2348, expected range: 0.0000 172.8618
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42706 : out of range
Severe: rms_fgdepar=306.4153, expected range: 0.0000 155.4488
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40616 : out of range
Severe: rms_fgdepar=727.7428, expected range: 0.0000 267.0912
Severe: avg_pge=0.9197, expected range: -0.5973 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42726 : out of range
Severe: rms_fgdepar=799.5504, expected range: 0.0000 316.0364
Severe: avg_pge=0.9262, expected range: -0.3758 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43367 : out of range
Severe: rms_fgdepar=339.0520, expected range: 0.0000 182.4528
Severe: avg_pge=0.8127, expected range: -1.1137 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
4 times in the last 10 days for at least one item
Severe: avg_biascorr=13.7662, expected range: -3.1489 5.2337
BUFR LAND SYNOP RH2M (%) 01463 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8048, expected range: -1.2801 0.7500
BUFR LAND SYNOP RH2M (%) 08383 : out of range
Severe: rms_fgdepar=31.3141, expected range: 0.0000 14.8210
BUFR LAND SYNOP RH2M (%) 16084 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9993, expected range: -1.4651 0.7500
BUFR LAND SYNOP RH2M (%) 72637 : out of range
Severe: rms_fgdepar=29.3628, expected range: 0.0000 12.8692
BUFR LAND SYNOP SURFACE PRESSURE (PA) 72450 : out of range
Severe: rms_fgdepar=322.8635, expected range: 0.0000 154.0889
BUFR LAND SYNOP SURFACE PRESSURE (PA) 14557 : out of range
Severe: rms_fgdepar=485.0438, expected range: 0.0000 244.8523
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
Considerable: rms_fgdepar=169.2268, expected range: 16.1044 115.3972
ship
SHIP WIND VECTOR DIFF (M/S) V7TR6 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8547, expected range: 0.0893 0.7500
SHIP SURFACE PRESSURE (PA) 9HA3731 : out of range
Severe: avg_pge=0.9099, expected range: -1.1559 0.7500
SHIP SURFACE PRESSURE (PA) VRKB9 : out of range
Severe: avg_pge=0.8248, expected range: -0.6096 0.7500
SHIP WIND VECTOR DIFF (M/S) TBWUK86 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8983, expected range: -0.9210 0.7500
SHIP WIND VECTOR DIFF (M/S) CCES : out of range
Severe: rms_fgdepar=25.9839, expected range: 0.0000 12.6683
AUTOMATIC SHIP SURFACE PRESSURE (PA) : out of range
2 times in the last 10 days for at least one item
Slight: obs_number=4475.0000, expected range: 3890.0376 4280.8813
metar
METAR SURFACE PRESSURE (PA) HDAM : out of range
Severe: rms_fgdepar=750.6070, expected range: 0.0000 263.7934
Severe: avg_pge=0.8711, expected range: -0.3582 0.4152
METAR SURFACE PRESSURE (PA) OIHM : out of range
Severe: rms_fgdepar=399.8260, expected range: 0.0000 154.7163
METAR SURFACE PRESSURE (PA) DAOO : out of range
Severe: rms_fgdepar=311.0784, expected range: 0.0000 141.9250
METAR SURFACE PRESSURE (PA) LIRT : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=625.8393, expected range: 0.0000 157.3346
AUTOMATIC METAR SURFACE PRESSURE (PA) KQBG : out of range
Severe: rms_fgdepar=304.0360, expected range: 0.0000 144.6119
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89734 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8242, expected range: 0.5203 1.0122
MANUAL LAND SYNOP 2M TEMPERATURE (K) 61697 : out of range
Severe: rms_fgdepar=10.7809, expected range: 0.0000 3.8012
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89009 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8138, expected range: 0.3081 1.1160
METAR 2M TEMPERATURE (K) KOWB : out of range
Severe: rms_fgdepar=7.9274, expected range: 0.6682 4.2980
METAR 2M TEMPERATURE (K) KESN : out of range
Severe: rms_fgdepar=9.0324, expected range: 0.1473 5.1487
METAR 2M TEMPERATURE (K) KMER : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=13.5965, expected range: 0.7177 5.7785
METAR 2M TEMPERATURE (K) EDGS : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=9.0580, expected range: 0.0000 4.3280
METAR 2M TEMPERATURE (K) UMMS : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=8.9745, expected range: 0.0000 4.7685
BUFR LAND SYNOP 2M TEMPERATURE (K) 89507 : out of range
3 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8377, expected range: 0.3239 0.9833
BUFR LAND SYNOP 2M TEMPERATURE (K) 85567 : out of range
Severe: rms_fgdepar=10.9579, expected range: 0.3277 6.1889
rh2m
MANUAL LAND SYNOP RH2M (%) 40783 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=15.7508, expected range: 0.0000 8.6747