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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-11-09 00:00

mhs
ALLSKY METOP-A/MHS RADIANCES CHANNEL 3 : out of range
Slight: obs_number=45439.0000, expected range: 46722.0528 49064.1524
ALLSKY METOP-A/MHS RADIANCES CHANNEL 4 : out of range
Slight: obs_number=42830.0000, expected range: 44332.8137 46868.9299
Atmospheric Motion Vector
HIMAWARI-8 AMV IR1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HPA : out of range
Slight: avg_fgdepar=1.9338, expected range: 1.5244 1.8900
HIMAWARI-8 AMV VIS1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 600-900 (HPA : out of range
Slight: avg_fgdepar=2.4159, expected range: 1.8955 2.3619
Radiosondes
LAND TEMP TEMPERATURE (K) 30372 PRESSURE LAYER 900-1200 (HPA) : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8810, expected range: -1.3681 0.7500
LAND TEMP TEMPERATURE (K) 24266 PRESSURE LAYER 900-1200 (HPA) : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8421, expected range: -0.8186 0.7500
LAND TEMP TEMPERATURE (K) 42724 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.1338, expected range: 0.0000 4.3948
Severe: avg_pge=0.9327, expected range: -0.3236 0.5410
LAND TEMP TEMPERATURE (K) 43192 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=6.4541, expected range: 0.0000 3.3741
Severe: avg_pge=0.8476, expected range: -0.8571 0.7500
LAND TEMP TEMPERATURE (K) 30758 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.8608, expected range: -1.3502 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 42724 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.4590, expected range: 2.1584 6.2116
LAND TEMP WIND VECTOR DIFF (M/S) 29862 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=16.9395, expected range: 0.0000 6.8850
HIGH RESO LAND TEMP TEMPERATURE (K) (4 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=108.0000, expected range: 262.6346 727.7184
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) XIZX1KBA (2 pressure layers affecte : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9102, expected range: -1.0873 0.7500
WIGOS AMDAR TEMPERATURE (K) 00IERQRA PRESSURE LAYER 0-300 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8299, expected range: -1.6018 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU4247 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=23.3857, expected range: 0.0097 6.3014
Severe: avg_pge=0.8720, expected range: -0.1659 0.2858
WIGOS AMDAR WIND VECTOR DIFF (M/S) XIZX1KBA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=45.3754, expected range: 0.0000 22.4948
WIGOS AMDAR WIND VECTOR DIFF (M/S) JEZ0RUJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_pge=0.8037, expected range: -0.3502 0.5772
WIGOS AMDAR WIND VECTOR DIFF (M/S) WPCKQNZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_pge=0.8384, expected range: -0.7672 0.7500
synop
MANUAL LAND SYNOP RH2M (%) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: obs_number=58.0000, expected range: 84.2566 112.2140
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 48810 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8062, expected range: -0.2890 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42420 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8646, expected range: -0.7781 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94654 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8776, expected range: -1.6374 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 60018 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8131, expected range: 0.6699 0.7500
MANUAL LAND SYNOP RH2M (%) 64751 : out of range
Severe: avg_pge=0.9891, expected range: -0.8959 0.7500
MANUAL LAND SYNOP RH2M (%) 61091 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9420, expected range: -1.7282 0.7500
MANUAL LAND SYNOP RH2M (%) 47075 : out of range
Severe: rms_fgdepar=37.2356, expected range: 0.0000 19.9528
MANUAL LAND SYNOP RH2M (%) 52436 : out of range
Severe: rms_fgdepar=23.9369, expected range: 0.0000 12.4009
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42937 : out of range
Severe: rms_fgdepar=674.3401, expected range: 0.0000 236.2202
BUFR LAND SYNOP RH2M (%) 94373 : out of range
Severe: rms_fgdepar=29.4744, expected range: 0.0000 14.7531
BUFR LAND SYNOP SURFACE PRESSURE (PA) 23662 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=622.8813, expected range: 0.0000 152.6708
Severe: avg_pge=0.9114, expected range: -0.0371 0.0412
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71643 : out of range
Severe: rms_fgdepar=323.6062, expected range: 0.0000 124.4693
BUFR LAND SYNOP SURFACE PRESSURE (PA) 23734 : out of range
Severe: rms_fgdepar=630.4426, expected range: 0.0000 157.3321
BUFR LAND SYNOP SURFACE PRESSURE (PA) 61995 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9243, expected range: -1.0122 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) : out of range
3 times in the last 10 days for at least one item
Considerable: obs_number=223.0000, expected range: 258.8708 380.9069
BUFR LAND SYNOP RH2M (%) : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=280.0000, expected range: 296.5219 328.1447
ship
AUTOMATIC SHIP SURFACE PRESSURE (PA) SDIA : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8198, expected range: -0.8398 0.7500
SHIP WIND VECTOR DIFF (M/S) TBWUK79 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8658, expected range: -0.3102 0.7500
SHIP WIND VECTOR DIFF (M/S) PBGJ : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8258, expected range: 0.3470 0.7500
ABBREVIATED SHIP SURFACE PRESSURE (PA) WTDF : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8592, expected range: -1.6267 0.7500
SHIP SURFACE PRESSURE (PA) VRKF2 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8284, expected range: -1.2430 0.7500
SHIP SURFACE PRESSURE (PA) C6SE3 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=444.6703, expected range: 0.0000 224.2523
Severe: avg_pge=0.8360, expected range: -0.8482 0.7500
SHIP SURFACE PRESSURE (PA) C6BR3 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8382, expected range: -1.3633 0.7500
SHIP SURFACE PRESSURE (PA) ZCBU5 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8535, expected range: -0.7813 0.7500
SHIP SURFACE PRESSURE (PA) IBJD : out of range
Severe: avg_pge=0.8437, expected range: -0.5287 0.7500
SHIP SURFACE PRESSURE (PA) H3GS : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=440.4885, expected range: 0.0000 215.5130
Severe: avg_pge=0.8463, expected range: -1.0869 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=242.1212, expected range: -0.9568 0.8951
DRIFTING BUOYS SURFACE PRESSURE (PA) 2501540 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8334, expected range: -1.4809 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4801652 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9021, expected range: -0.5745 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 3301615 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8778, expected range: -1.4102 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2501668 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8122, expected range: -1.3050 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2301788 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=664.9282, expected range: 0.0000 88.4245
Severely_persistent: avg_pge=0.9133, expected range: -0.5778 0.6496
DRIFTING BUOYS SURFACE PRESSURE (PA) 6202670 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8549, expected range: -1.3920 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6202671 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8841, expected range: -1.3373 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6202672 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8589, expected range: -1.5254 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4801717 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9064, expected range: -1.1771 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2501667 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8791, expected range: -0.2420 0.7500
metar
METAR SURFACE PRESSURE (PA) OPRK : out of range
Severe: rms_fgdepar=311.8607, expected range: 0.0000 165.9530
METAR SURFACE PRESSURE (PA) KGPM : out of range
Severe: rms_fgdepar=552.5719, expected range: 0.0000 250.4285
METAR SURFACE PRESSURE (PA) SBPP : out of range
Severe: rms_fgdepar=402.2317, expected range: 0.0000 229.4235
snow
BUFR LAND SYNOP SNOW (CM) : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=0.0666, expected range: -0.0001 0.0000
Severely_persistent: avg_fgdepar=0.0993, expected range: -0.0418 0.0369
Severely_persistent: rms_fgdepar=0.7626, expected range: -0.0010 0.0012
Severely_persistent: rms_fgdepar=1.7470, expected range: -0.3117 0.3994
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89578 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8079, expected range: 0.6307 1.0231
LAND TEMP 2M TEMPERATURE (K) 72469 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8230, expected range: -0.4812 1.4425
BUFR LAND SYNOP 2M TEMPERATURE (K) 89578 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8061, expected range: 0.6358 1.0198
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89266 : out of range
Severe: rms_fgdepar=8.3625, expected range: 0.0000 3.7038
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 06627 : out of range
Severe: rms_fgdepar=8.5166, expected range: 0.2845 4.3522
MANUAL LAND SYNOP 2M TEMPERATURE (K) 37801 : out of range
Severe: avg_est_pge=0.8077, expected range: -0.3877 1.0134
MANUAL LAND SYNOP 2M TEMPERATURE (K) 23921 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.3914, expected range: 0.0000 3.5424
MANUAL LAND SYNOP 2M TEMPERATURE (K) 23662 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=11.5561, expected range: 0.0000 3.2304
MANUAL LAND SYNOP 2M TEMPERATURE (K) 28049 : out of range
Severe: rms_fgdepar=7.8516, expected range: 0.0000 2.3163
METAR 2M TEMPERATURE (K) SVMC : out of range
Severe: rms_fgdepar=16.0061, expected range: 0.0565 6.1978
LAND TEMP 2M TEMPERATURE (K) 72662 : out of range
Severe: avg_est_pge=0.8206, expected range: -0.5663 1.1375
LAND TEMP 2M TEMPERATURE (K) 17196 : out of range
Severe: rms_fgdepar=18.3113, expected range: 0.0000 6.0345
Severe: avg_est_pge=0.9114, expected range: -0.2893 1.0761
LAND TEMP 2M TEMPERATURE (K) 24688 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8378, expected range: -0.3917 1.2856
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
4 times in the last 10 days for at least one item
Considerable: obs_number=142.0000, expected range: 165.8527 197.8315