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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-11-08 12:00

amsua
METOP-C/AMSUA RADIANCES CHANNEL 6 : out of range
Considerable: avg_biascorr=-0.7795, expected range: -0.7450 -0.6111
Radiosondes
LAND TEMP TEMPERATURE (K) 30372 PRESSURE LAYER 900-1200 (HPA) : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9062, expected range: -1.1759 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 27962 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=17.2469, expected range: 0.0000 6.0976
HIGH RESO LAND TEMP Q (G/KG) (4 pressure layers affected) : out of range
Severe: obs_number=327.0000, expected range: 454.0478 472.7757
LAND TEMP Q (G/KG) PRESSURE LAYER 0-300 (HPA) : out of range
4 times in the last 10 days for at least one item
Considerable: rms_fgdepar=0.0131, expected range: 0.0000 0.0087
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) XIZX1KBA (2 pressure layers affecte : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=32.6348, expected range: 0.0000 9.6974
Severely_persistent: avg_pge=0.8933, expected range: -0.9614 0.7500
WIGOS AMDAR TEMPERATURE (K) EU0001 PRESSURE LAYER 0-300 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8288, expected range: -1.4527 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) ZOXEH2BA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=24.0559, expected range: 0.0000 13.4299
Severe: avg_pge=0.8715, expected range: -0.2922 0.4604
airep
AIREP WIND VECTOR DIFF (M/S) LAN800 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.7734, expected range: 0.0000 10.0658
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 57494 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=26.0963, expected range: 0.0000 13.1080
LAND PILOT WIND VECTOR DIFF (M/S) 65306 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=20.3324, expected range: 0.0000 5.5966
synop
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=0.9023, expected range: -0.0303 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42266 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8185, expected range: -1.1429 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 72672 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8248, expected range: -1.3623 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 60018 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8073, expected range: 0.6507 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=209.0000, expected range: 274.5285 335.1382
MANUAL LAND SYNOP RH2M (%) 42165 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9954, expected range: -0.9744 0.7500
MANUAL LAND SYNOP RH2M (%) 67965 : out of range
Severe: rms_fgdepar=21.3613, expected range: 0.0000 8.8602
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 31137 : out of range
Severe: rms_fgdepar=410.5454, expected range: 0.0000 231.6196
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 31087 : out of range
Severe: rms_fgdepar=446.9415, expected range: 0.0000 149.3487
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 82098 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=365.8506, expected range: 0.0000 196.8725
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42469 : out of range
Severe: avg_pge=0.8083, expected range: -0.9516 0.7500
BUFR LAND SYNOP RH2M (%) 94570 : out of range
Severe: rms_fgdepar=50.1271, expected range: 0.0000 38.3226
Severe: avg_pge=0.9996, expected range: -0.1122 0.1355
BUFR LAND SYNOP RH2M (%) 94291 : out of range
Severe: rms_fgdepar=29.9425, expected range: 0.0000 6.9484
BUFR LAND SYNOP RH2M (%) 95292 : out of range
Severe: rms_fgdepar=25.9624, expected range: 0.0000 13.4913
BUFR LAND SYNOP RH2M (%) 71373 : out of range
Severe: rms_fgdepar=25.8663, expected range: 0.0000 13.0580
BUFR LAND SYNOP RH2M (%) 41055 : out of range
Severe: rms_fgdepar=46.9258, expected range: 0.0000 24.7985
Severe: avg_pge=0.9864, expected range: -0.0125 0.0278
BUFR LAND SYNOP RH2M (%) 94566 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=67.2011, expected range: 0.0000 26.2188
Severe: avg_pge=1.0000, expected range: -1.0838 0.7500
BUFR LAND SYNOP RH2M (%) 94567 : out of range
Severe: rms_fgdepar=58.5872, expected range: 0.0000 29.5587
Severe: avg_pge=0.9998, expected range: -0.0137 0.0220
BUFR LAND SYNOP RH2M (%) 94569 : out of range
Severe: rms_fgdepar=58.3772, expected range: 0.0000 46.9016
BUFR LAND SYNOP SURFACE PRESSURE (PA) 23662 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=410.0925, expected range: 0.0000 94.8481
Severe: avg_pge=0.8456, expected range: -0.0238 0.0279
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48416 : out of range
Severe: rms_fgdepar=356.2583, expected range: 0.0000 233.2188
Severe: avg_pge=0.8451, expected range: -0.6501 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 13586 : out of range
Severe: rms_fgdepar=354.5251, expected range: 0.0000 113.5221
AUTOMATIC LAND SYNOP RH2M (%) : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=90.0000, expected range: 108.0007 152.4203
ship
SHIP SURFACE PRESSURE (PA) 9HA4800 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8456, expected range: -1.0795 0.7500
SHIP SURFACE PRESSURE (PA) TBWUK31 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=1034.0430, expected range: 0.0000 627.3038
Severely_persistent: avg_pge=0.9380, expected range: -1.1453 0.7500
SHIP WIND VECTOR DIFF (M/S) TBWUK31 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8958, expected range: -0.3493 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=0.8577, expected range: -0.3014 0.7500
SHIP WIND VECTOR DIFF (M/S) PBGJ : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8509, expected range: 0.3472 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) LF4J : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8961, expected range: 0.3640 0.7500
SHIP SURFACE PRESSURE (PA) 9V9791 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8232, expected range: -0.5959 0.7500
SHIP SURFACE PRESSURE (PA) 9V3532 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8028, expected range: -0.6511 0.7500
SHIP SURFACE PRESSURE (PA) 9V5293 : out of range
Severe: rms_fgdepar=1139.8628, expected range: 0.0000 331.1139
Severe: avg_pge=0.9441, expected range: -0.8570 0.7500
SHIP SURFACE PRESSURE (PA) C6BR3 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8284, expected range: -1.3937 0.7500
SHIP SURFACE PRESSURE (PA) 9HA3047 : out of range
Severe: avg_pge=0.8483, expected range: -1.3140 0.7500
SHIP SURFACE PRESSURE (PA) J8QX9 : out of range
Severe: avg_pge=0.8551, expected range: -1.0111 0.7500
SHIP SURFACE PRESSURE (PA) CQHW : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8375, expected range: -0.6672 0.7500
SHIP WIND VECTOR DIFF (M/S) VRKQ5 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=32.6797, expected range: 0.0000 15.7531
Severe: avg_pge=0.9542, expected range: -0.2946 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 2501540 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8501, expected range: -1.4269 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4801663 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8992, expected range: -1.2213 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2501668 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8173, expected range: -1.3497 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6202670 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8874, expected range: -1.4047 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6202671 : out of range
Severe: avg_pge=0.8282, expected range: -1.3707 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2601623 : out of range
Severe: rms_fgdepar=365.0515, expected range: 0.0000 200.4613
DRIFTING BUOYS SURFACE PRESSURE (PA) 6202673 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8341, expected range: -1.2768 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6301687 : out of range
Severe: rms_fgdepar=381.9448, expected range: 0.0000 115.7653
Severe: avg_pge=0.8499, expected range: -0.0451 0.0535
DRIFTING BUOYS SURFACE PRESSURE (PA) 2301788 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=710.2742, expected range: 0.0000 88.4245
Severe: avg_pge=0.9171, expected range: -0.1249 0.1628
metar
METAR SURFACE PRESSURE (PA) GMMI : out of range
Severe: rms_fgdepar=345.1686, expected range: 0.0000 144.2629
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=0.0424, expected range: -0.0001 0.0000
Severely_persistent: rms_fgdepar=0.6409, expected range: -0.0010 0.0012
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=0.8002, expected range: 0.6245 1.0260
LAND TEMP 2M TEMPERATURE (K) 72376 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8277, expected range: 0.2163 1.1102
LAND TEMP 2M TEMPERATURE (K) 56137 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8910, expected range: 0.6518 0.9820
LAND TEMP 2M TEMPERATURE (K) 56029 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8395, expected range: 0.6697 0.9827
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=0.8039, expected range: 0.6294 1.0226
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71160 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.0649, expected range: 0.0000 3.3107
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 68633 : out of range
Severe: rms_fgdepar=9.5548, expected range: 0.0000 5.3259
MANUAL LAND SYNOP 2M TEMPERATURE (K) 24361 : out of range
Severe: avg_est_pge=0.8050, expected range: -0.3056 1.0913
MANUAL LAND SYNOP 2M TEMPERATURE (K) 23812 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.0111, expected range: 0.0000 2.6003
MANUAL LAND SYNOP 2M TEMPERATURE (K) 67152 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.6530, expected range: 0.0000 4.1640
MANUAL LAND SYNOP 2M TEMPERATURE (K) 83334 : out of range
Severe: rms_fgdepar=8.4397, expected range: 0.0000 3.6764
MANUAL LAND SYNOP 2M TEMPERATURE (K) 22365 : out of range
Severe: rms_fgdepar=9.9079, expected range: 0.0000 3.3736
MANUAL LAND SYNOP 2M TEMPERATURE (K) 25428 : out of range
Severe: rms_fgdepar=11.7838, expected range: 0.0000 6.5603
METAR 2M TEMPERATURE (K) SPTN : out of range
Severe: rms_fgdepar=7.8703, expected range: 0.6039 3.7414
LAND TEMP 2M TEMPERATURE (K) 72582 : out of range
4 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8361, expected range: -0.0390 1.1881
BUFR LAND SYNOP 2M TEMPERATURE (K) 81903 : out of range
Severe: rms_fgdepar=7.2013, expected range: 0.0841 4.0410
BUFR LAND SYNOP 2M TEMPERATURE (K) 81863 : out of range
Severe: rms_fgdepar=8.6055, expected range: 0.0000 4.5720
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=142.0000, expected range: 166.5071 197.3350
Considerable: rms_fgdepar=3.2879, expected range: 1.9505 2.7675
MANUAL LAND SYNOP 2M TEMPERATURE (K) : out of range
4 times in the last 10 days for at least one item
Considerable: avg_fgdepar=-2.3250, expected range: -1.1843 0.7089
rh2m
MANUAL LAND SYNOP RH2M (%) 88968 : out of range
Severe: rms_fgdepar=24.7517, expected range: 0.0000 13.8080
BUFR LAND SYNOP RH2M (%) : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=140.0000, expected range: 158.0753 199.5358