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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-11-10 12:00

iasi
METOP-B/IASI RADIANCES CHANNEL 3452 : out of range
Considerable: stdev_fgdepar=0.7144, expected range: 0.4197 0.6506
Radiosondes
LAND TEMP TEMPERATURE (K) 24266 PRESSURE LAYER 900-1200 (HPA) : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9014, expected range: -1.0740 0.7500
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 04270 PRESSURE LAYER 900-12 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8037, expected range: -1.1555 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 53068 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.4285, expected range: 0.1906 6.8345
LAND TEMP WIND VECTOR DIFF (M/S) 38341 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=18.4301, expected range: 0.0000 7.4373
Severe: avg_pge=0.8199, expected range: -0.3643 0.5450
LAND TEMP WIND VECTOR DIFF (M/S) 56137 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=20.5758, expected range: 0.0000 10.9872
LAND TEMP TEMPERATURE (K) 34882 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=20.4980, expected range: 0.0000 3.3598
Severe: avg_pge=0.8742, expected range: -0.5403 0.7500
LAND TEMP TEMPERATURE (K) 25123 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.8667, expected range: -0.5047 0.7500
amdar
AMDAR WIND VECTOR DIFF (M/S) LAN800 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.0772, expected range: 0.0000 10.1588
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 40179 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=26.4959, expected range: 0.0000 17.7145
Severe: avg_pge=0.9354, expected range: -1.1287 0.7500
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: obs_number=213.0000, expected range: 269.6583 339.4005
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=0.8474, expected range: -0.0319 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42420 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8055, expected range: -0.5234 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 61995 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=906.3546, expected range: 0.0000 193.1062
Severely_persistent: avg_pge=0.9302, expected range: -0.8459 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 08352 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=742.2630, expected range: 0.0000 283.6580
Severely_persistent: avg_pge=0.9445, expected range: -1.1906 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 72672 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8128, expected range: -1.3259 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 60018 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8122, expected range: 0.6568 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 41244 : out of range
Severe: rms_fgdepar=45.1829, expected range: 0.0000 8.2043
Severe: avg_pge=0.8780, expected range: 0.0017 0.0035
AUTOMATIC LAND SYNOP RH2M (%) 94644 : out of range
Severe: rms_fgdepar=29.3708, expected range: 0.0000 13.2244
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 65420 : out of range
Severe: rms_fgdepar=427.6303, expected range: 0.0000 240.1598
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42811 : out of range
Severe: rms_fgdepar=440.7140, expected range: 0.0000 218.0341
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 47061 : out of range
Severe: rms_fgdepar=594.1358, expected range: 0.0000 450.7177
Severe: avg_pge=0.8985, expected range: -0.7744 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 47022 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=570.9029, expected range: 0.0000 292.9354
Severe: avg_pge=0.8642, expected range: -0.7178 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 38232 : out of range
Severe: rms_fgdepar=330.6283, expected range: 0.0000 143.2898
Severe: avg_pge=0.8171, expected range: -0.2652 0.3189
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 65469 : out of range
Severe: rms_fgdepar=364.5663, expected range: 0.0000 137.9374
MANUAL LAND SYNOP RH2M (%) 76040 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8637, expected range: -0.7880 0.7500
MANUAL LAND SYNOP RH2M (%) 41560 : out of range
Severe: avg_pge=0.9024, expected range: -0.4141 0.5048
MANUAL LAND SYNOP RH2M (%) 42174 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9838, expected range: -1.5662 0.7500
MANUAL LAND SYNOP RH2M (%) 41218 : out of range
Severe: rms_fgdepar=44.5815, expected range: 0.0000 8.3427
Severe: avg_pge=0.8923, expected range: 0.0016 0.0037
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71083 : out of range
Severe: rms_fgdepar=325.4719, expected range: 0.0000 157.6909
BUFR LAND SYNOP SURFACE PRESSURE (PA) 04166 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8862, expected range: -0.0852 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 29789 : out of range
Severe: rms_fgdepar=524.6120, expected range: 0.0000 154.3358
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=165.0000, expected range: 187.1736 201.8264
BUFR LAND SYNOP RH2M (%) 40420 : out of range
Severe: rms_fgdepar=22.5182, expected range: 0.0000 10.1553
Severe: avg_pge=0.9997, expected range: 0.0011 0.0046
BUFR LAND SYNOP RH2M (%) 95642 : out of range
Severe: rms_fgdepar=32.8702, expected range: 0.0000 14.6050
BUFR LAND SYNOP RH2M (%) 40405 : out of range
Severe: rms_fgdepar=36.8274, expected range: 0.0000 32.6442
Severe: avg_pge=0.8579, expected range: -0.0985 0.1391
BUFR LAND SYNOP RH2M (%) 95307 : out of range
Severe: avg_pge=0.8323, expected range: -0.2764 0.3258
ship
SHIP WIND VECTOR DIFF (M/S) VRKQ5 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8571, expected range: -0.3639 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) LF4J : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8172, expected range: 0.3680 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) 45172 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9467, expected range: -1.0423 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) 45174 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8214, expected range: -0.5897 0.7500
SHIP SURFACE PRESSURE (PA) 9V3532 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8452, expected range: -0.6703 0.7500
SHIP SURFACE PRESSURE (PA) ZCDM6 : out of range
Severe: rms_fgdepar=480.2870, expected range: 0.0000 243.8351
Severe: avg_pge=0.8646, expected range: -0.6993 0.7500
SHIP SURFACE PRESSURE (PA) C6FV8 : out of range
Severe: avg_pge=0.8263, expected range: -1.2450 0.7500
SHIP WIND VECTOR DIFF (M/S) WYQ4356 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=15.5540, expected range: 0.0000 9.0987
Severe: avg_pge=0.8987, expected range: -0.4431 0.7500
SHIP WIND VECTOR DIFF (M/S) VRPN8 : out of range
Severe: rms_fgdepar=23.5277, expected range: 0.0000 11.9143
Severe: avg_pge=0.9348, expected range: -1.0021 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=885.0000, expected range: -83.5433 88.3553
Severely_persistent: avg_biascorr=-8.6072, expected range: -0.2696 0.2520
Severely_persistent: avg_biascorr=50.7722, expected range: -16.3542 17.9909
DRIFTING BUOYS SURFACE PRESSURE (PA) 2501540 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8353, expected range: -1.5631 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2301788 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=369.7837, expected range: 0.0000 90.7852
Severely_persistent: avg_pge=0.8414, expected range: -1.2337 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101713 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=417.9861, expected range: 0.0000 72.2349
DRIFTING BUOYS SURFACE PRESSURE (PA) 4801663 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9212, expected range: -1.2635 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4401565 : out of range
Severe: rms_fgdepar=358.2505, expected range: 0.0000 135.1200
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101707 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=658.7455, expected range: -277.2369 378.3395
Severe: avg_pge=0.9162, expected range: -1.2479 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1601527 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8089, expected range: -0.9979 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=0.9083, expected range: -0.2333 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6301687 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=313.5890, expected range: 0.0000 175.6471
metar
METAR SURFACE PRESSURE (PA) OPNH : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=475.2866, expected range: 0.0000 266.1463
METAR SURFACE PRESSURE (PA) LOXN : out of range
Severe: rms_fgdepar=346.9617, expected range: 0.0000 122.7696
snow
BUFR LAND SYNOP SNOW (CM) : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-0.0099, expected range: -0.0032 0.0028
Severely_persistent: rms_fgdepar=0.3895, expected range: -0.0228 0.0266
t2m
MANUAL LAND SYNOP 2M TEMPERATURE (K) 70261 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=6.7447, expected range: 0.0000 3.3820
LAND TEMP 2M TEMPERATURE (K) 72582 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8046, expected range: 0.0727 1.1581
LAND TEMP 2M TEMPERATURE (K) 72376 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8413, expected range: 0.2201 1.1082
LAND TEMP 2M TEMPERATURE (K) 56137 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8882, expected range: 0.6428 0.9954
LAND TEMP 2M TEMPERATURE (K) 56029 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8024, expected range: 0.6858 0.9757
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71541 : out of range
Severe: rms_fgdepar=8.5626, expected range: 0.0000 3.4836
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71461 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=8.6621, expected range: 0.0000 4.4437
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71283 : out of range
Severe: rms_fgdepar=8.3042, expected range: 0.0000 4.7069
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 41244 : out of range
Severe: rms_fgdepar=7.0765, expected range: 0.3972 3.8415
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 01064 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=13.8102, expected range: 0.0000 5.7141
Severe: avg_est_pge=0.8091, expected range: -0.2619 0.5439
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 01084 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=9.8029, expected range: 0.0000 5.3235
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71546 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.4513, expected range: 0.0000 5.0701
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71066 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=11.4330, expected range: 0.0000 5.8156
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71347 : out of range
Severe: rms_fgdepar=10.0079, expected range: 0.0000 5.0978
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 95529 : out of range
Severe: rms_fgdepar=7.3046, expected range: 0.0000 4.0151
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 68479 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.3984, expected range: 0.0000 3.8826
MANUAL LAND SYNOP 2M TEMPERATURE (K) 29313 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.6316, expected range: 0.0000 3.7338
MANUAL LAND SYNOP 2M TEMPERATURE (K) 23774 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.8398, expected range: 0.0000 3.9593
MANUAL LAND SYNOP 2M TEMPERATURE (K) 72394 : out of range
Severe: rms_fgdepar=10.5334, expected range: 0.0000 5.1861
MANUAL LAND SYNOP 2M TEMPERATURE (K) 41216 : out of range
Severe: rms_fgdepar=7.2109, expected range: 0.0000 2.5510
MANUAL LAND SYNOP 2M TEMPERATURE (K) 41217 : out of range
Severe: rms_fgdepar=8.1249, expected range: 0.2716 2.9908
MANUAL LAND SYNOP 2M TEMPERATURE (K) 41218 : out of range
Severe: rms_fgdepar=7.9903, expected range: 0.5221 3.7710
METAR 2M TEMPERATURE (K) CYOJ : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.4451, expected range: 0.0000 5.2998
METAR 2M TEMPERATURE (K) USCM : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=8.2657, expected range: 0.0000 4.2782
METAR 2M TEMPERATURE (K) UGMS : out of range
2 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8593, expected range: 0.1744 1.0871
METAR 2M TEMPERATURE (K) OMDW : out of range
Severe: rms_fgdepar=7.3943, expected range: 0.4521 4.0408
BUFR LAND SYNOP 2M TEMPERATURE (K) 01064 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=13.7453, expected range: 0.0000 5.6700
Severe: avg_est_pge=0.8083, expected range: -0.2588 0.5387
BUFR LAND SYNOP 2M TEMPERATURE (K) 01084 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=9.8123, expected range: 0.0000 5.3360
BUFR LAND SYNOP 2M TEMPERATURE (K) 71066 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=11.4910, expected range: 0.0000 5.8575
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 71492 : out of range
Severe: rms_fgdepar=28.1140, expected range: 0.0000 13.4646