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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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

Atmospheric Motion Vector
HIMAWARI-8 AMV IR1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HPA : out of range
Considerable: stdev_fgdepar=1.3985, expected range: 0.8188 1.2670
Radiosondes
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=0.8693, expected range: -1.1154 0.7500
LAND TEMP TEMPERATURE (K) 40375 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.6389, expected range: 0.0000 2.0188
Severe: avg_pge=0.8489, expected range: -0.6698 0.7500
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
Severe: obs_number=439.0000, expected range: 329.0447 368.7331
HIGH RESO LAND TEMP Q (G/KG) 94578 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=4.3136, expected range: 0.0000 2.0289
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 348.5836
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) XIZX1KBA (2 pressure layers affecte : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9025, expected range: -1.1838 0.7500
AMDAR WIND VECTOR DIFF (M/S) JP9Z5861 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=16.7194, expected range: 0.0000 9.4358
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU4526 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=26.7503, expected range: 0.0000 5.7594
Severe: avg_pge=0.8635, expected range: -0.1540 0.2374
WIGOS AMDAR WIND VECTOR DIFF (M/S) XIZX1KBA PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=36.8699, expected range: 0.0000 25.0559
WIGOS AMDAR WIND VECTOR DIFF (M/S) FIU1ADZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_pge=0.8490, expected range: -0.6372 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) SL0144 PRESSURE LAYER 900-1200 (HPA : out of range
Severe: rms_fgdepar=16.1839, expected range: 0.0000 8.4546
WIGOS AMDAR TEMPERATURE (K) EU4526 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_pge=0.8034, expected range: -0.0092 0.0099
airep
AIREP WIND VECTOR DIFF (M/S) THY4 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=18.2019, expected range: 0.0000 8.2053
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 57083 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=18.4236, expected range: 0.0124 9.2375
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=0.8568, expected range: -0.0306 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 23662 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=708.9014, expected range: 0.0000 113.2876
Severely_persistent: avg_pge=0.9162, expected range: -0.1201 0.1360
BUFR LAND SYNOP SURFACE PRESSURE (PA) 60018 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8471, expected range: 0.6516 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 68116 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=17.9862, expected range: 0.0000 8.9382
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) : out of range
4 times in the last 10 days for at least one item
Severe: obs_number=214.0000, expected range: 270.5665 338.3223
MANUAL LAND SYNOP RH2M (%) 42165 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9997, expected range: -1.3771 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 67241 : out of range
Severe: rms_fgdepar=1057.1093, expected range: 0.0000 268.5501
Severe: avg_pge=0.9471, expected range: -0.7832 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 64756 : out of range
Severe: rms_fgdepar=779.2440, expected range: 0.0000 363.1529
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 67157 : out of range
Severe: rms_fgdepar=852.1879, expected range: 0.0000 189.3731
Severe: avg_pge=0.9312, expected range: -0.7477 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 87078 : out of range
Severe: rms_fgdepar=398.0134, expected range: 0.0000 339.9341
Severe: avg_pge=0.8435, expected range: -0.7946 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 41749 : out of range
Severe: rms_fgdepar=1049.0726, expected range: 0.0000 199.2997
Severe: avg_pge=0.9421, expected range: -0.5228 0.5888
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 84099 : out of range
Severe: rms_fgdepar=1027.1194, expected range: 0.0000 322.9088
Severe: avg_pge=0.9378, expected range: -0.1698 0.2095
BUFR LAND SYNOP RH2M (%) 95570 : out of range
Severe: rms_fgdepar=57.6748, expected range: 0.0000 40.9738
Severe: avg_pge=0.9996, expected range: -0.0239 0.0335
BUFR LAND SYNOP RH2M (%) 03171 : out of range
Severe: rms_fgdepar=24.5803, expected range: 0.0000 13.3061
BUFR LAND SYNOP RH2M (%) 95292 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=33.4323, expected range: 0.0000 13.0667
BUFR LAND SYNOP RH2M (%) 27373 : out of range
Severe: rms_fgdepar=33.1858, expected range: 0.0000 13.4161
BUFR LAND SYNOP RH2M (%) 94785 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9989, expected range: -1.1003 0.7500
BUFR LAND SYNOP RH2M (%) 81737 : out of range
Severe: avg_pge=0.9745, expected range: -0.5548 0.7500
BUFR LAND SYNOP RH2M (%) 95367 : out of range
Severe: rms_fgdepar=51.0187, expected range: 0.0000 25.8459
Severe: avg_pge=0.9958, expected range: -0.9141 0.7500
BUFR LAND SYNOP RH2M (%) 94567 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=56.5188, expected range: 0.0000 34.2433
Severe: avg_pge=0.9922, expected range: -0.0157 0.0251
BUFR LAND SYNOP RH2M (%) 94568 : out of range
Severe: rms_fgdepar=53.0939, expected range: 0.0000 29.9683
Severe: avg_pge=0.9887, expected range: -0.0423 0.0564
BUFR LAND SYNOP SURFACE PRESSURE (PA) 08352 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=739.9597, expected range: 0.0000 283.7951
Severe: avg_pge=0.9440, expected range: -1.1793 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 28952 : out of range
Severe: rms_fgdepar=313.5486, expected range: 0.0000 156.7450
BUFR LAND SYNOP SURFACE PRESSURE (PA) 28879 : out of range
Severe: rms_fgdepar=416.8568, expected range: 0.0000 131.7146
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
3 times in the last 10 days for at least one item
Severe: obs_number=91.0000, expected range: 197.5478 274.4522
AUTOMATIC LAND SYNOP RH2M (%) : out of range
4 times in the last 10 days for at least one item
Considerable: obs_number=91.0000, expected range: 109.0516 152.0595
ship
SHIP SURFACE PRESSURE (PA) 9HA4800 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8155, expected range: -1.0688 0.7500
ABBREVIATED SHIP SURFACE PRESSURE (PA) WTDF : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9346, expected range: -1.5734 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) VCJM : out of range
Severe: avg_pge=0.8346, expected range: -0.7316 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) SPREP : out of range
Severe: avg_pge=0.8384, expected range: -0.9609 0.7500
SHIP WIND VECTOR DIFF (M/S) DFDD2 : out of range
Severe: rms_fgdepar=15.4879, expected range: 0.0000 7.7326
SHIP WIND VECTOR DIFF (M/S) OUUY2 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9273, expected range: -0.4832 0.7500
SHIP SURFACE PRESSURE (PA) OUUY2 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=878.9731, expected range: 0.0000 574.4026
SHIP SURFACE PRESSURE (PA) 9V5293 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=863.0500, expected range: 0.0000 364.9236
SHIP SURFACE PRESSURE (PA) C6SE3 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=427.1297, expected range: 0.0000 221.6710
Severe: avg_pge=0.8583, expected range: -0.8378 0.7500
SHIP SURFACE PRESSURE (PA) C6BR3 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8323, expected range: -1.3119 0.7500
SHIP SURFACE PRESSURE (PA) LAVD4 : out of range
Severe: rms_fgdepar=754.2180, expected range: 0.0000 184.0885
SHIP SURFACE PRESSURE (PA) LAOW5 : out of range
Severe: avg_pge=0.8566, expected range: -0.1480 0.7500
SHIP SURFACE PRESSURE (PA) C6DD6 : out of range
Severe: avg_pge=0.8042, expected range: -0.4237 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=-129.5652, expected range: -20.4420 21.8320
Severely_persistent: avg_biascorr=83.8596, expected range: -4.6786 4.9293
Severely_persistent: avg_biascorr=390.0000, expected range: -81.2972 85.8491
Severely_persistent: avg_biascorr=35.4688, expected range: -0.9173 0.9796
DRIFTING BUOYS SURFACE PRESSURE (PA) 3301615 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8511, expected range: -1.4652 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2301788 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=628.3010, expected range: 0.0000 89.1797
Severely_persistent: avg_pge=0.9087, expected range: -0.8806 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6401570 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=519.6312, expected range: 0.0000 242.4066
Severe: avg_pge=0.8515, expected range: -0.7946 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6301542 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=409.9309, expected range: 0.0000 194.5431
Severe: avg_pge=0.8172, expected range: -0.5500 0.6284
DRIFTING BUOYS SURFACE PRESSURE (PA) 6202674 : out of range
Severe: avg_pge=0.8266, expected range: -1.5996 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4801717 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8890, expected range: -1.1825 0.7500
metar
METAR SURFACE PRESSURE (PA) OPNH : out of range
Severe: rms_fgdepar=764.0428, expected range: 0.0000 261.6987
METAR SURFACE PRESSURE (PA) SBMQ : out of range
Severe: rms_fgdepar=344.4125, expected range: 0.0000 160.0235
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=-0.0146, expected range: -0.0005 0.0004
Severely_persistent: rms_fgdepar=0.5426, expected range: -0.0055 0.0065
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=0.8038, expected range: 0.6395 1.0182
LAND TEMP 2M TEMPERATURE (K) 72582 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8507, expected range: -0.0224 1.1913
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=0.8381, expected range: 0.2145 1.0987
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=0.8737, expected range: 0.6620 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=0.8552, expected range: 0.6875 0.9737
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=0.8071, expected range: 0.6449 1.0145
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 01162 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.4268, expected range: 0.0000 3.3993
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71164 : out of range
Severe: rms_fgdepar=11.3976, expected range: 0.0000 4.9574
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 68355 : out of range
Severe: rms_fgdepar=8.0035, expected range: 0.0000 4.1847
MANUAL LAND SYNOP 2M TEMPERATURE (K) 70261 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.4346, expected range: 0.0000 3.1710
MANUAL LAND SYNOP 2M TEMPERATURE (K) 22212 : out of range
Severe: rms_fgdepar=7.9042, expected range: 0.0000 4.1832
MANUAL LAND SYNOP 2M TEMPERATURE (K) 28952 : out of range
Severe: rms_fgdepar=7.1555, expected range: 0.0000 2.6287
MANUAL LAND SYNOP 2M TEMPERATURE (K) 23662 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=11.1274, expected range: 0.0000 3.2061
MANUAL LAND SYNOP 2M TEMPERATURE (K) 23503 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=8.2308, expected range: 0.0000 3.5174
MANUAL LAND SYNOP 2M TEMPERATURE (K) 31534 : out of range
Severe: rms_fgdepar=9.3387, expected range: 0.0000 4.7371
MANUAL LAND SYNOP 2M TEMPERATURE (K) 64459 : out of range
Severe: rms_fgdepar=7.8189, expected range: 0.0000 4.2537
METAR 2M TEMPERATURE (K) PAFA : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=9.0455, expected range: 0.0000 4.3454
METAR 2M TEMPERATURE (K) UGMS : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8311, expected range: 0.1718 1.0869
BUFR LAND SYNOP 2M TEMPERATURE (K) 01162 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.3715, expected range: 0.0000 3.3756