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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2021-02-23 00:00

amsua
METOP-B AMSUA RADIANCES (10 channels affected) : out of range
Considerable: obs_number=6127.0000, expected range: 10118.2610 18169.2390
Atmospheric Motion Vector
NOAA20 VIIRS-AMV IR WIND VECTOR DIFF (M/S) PRESSURE LAYER 600-900 (HPA : out of range
Considerable: obs_number=285.0000, expected range: 36.7113 201.2887
Radiosondes
LAND TEMP WIND VECTOR DIFF (M/S) 32150 PRESSURE LAYER 900-1200 (HPA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8739, expected range: -0.8109 0.7500
LAND TEMP TEMPERATURE (K) 30758 PRESSURE LAYER 900-1200 (HPA) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8814, expected range: -0.0713 0.7500
LAND TEMP TEMPERATURE (K) 24266 PRESSURE LAYER 900-1200 (HPA) : out of range
13 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=11.3988, expected range: 0.0000 21.8023
Severely_persistent: avg_fgdepar=-10.7376, expected range: -22.1187 7.3541
All LAND TEMP ALL LAYERS WMO BLOCK 62 : all data missing
Severe: obs_number=0, expected range: 0.00 380.00
LAND TEMP WIND VECTOR DIFF (M/S) 26075 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.8778, expected range: -0.5388 0.7500
Severe: rms_fgdepar=16.5614, expected range: 0.0000 5.7064
LAND TEMP WIND VECTOR DIFF (M/S) 72402 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=15.2511, expected range: 0.2035 5.7126
LAND TEMP WIND VECTOR DIFF (M/S) 34731 PRESSURE LAYER 300-600 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=21.6434, expected range: 0.0000 30.8604
LAND TEMP WIND VECTOR DIFF (M/S) 32150 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=19.9542, expected range: 0.0000 7.9342
LAND TEMP TEMPERATURE (K) 30935 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.9071, expected range: -1.1379 0.7500
Severe: rms_fgdepar=9.3199, expected range: 0.0000 6.2666
Severe: avg_fgdepar=-9.3199, expected range: -4.0698 6.2666
LAND TEMP TEMPERATURE (K) 30635 PRESSURE LAYER 900-1200 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8803, expected range: -1.2858 0.7500
LAND TEMP TEMPERATURE (K) 24343 PRESSURE LAYER 0-300 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=8.8254, expected range: 0.0000 3.2923
LAND TEMP Q (G/KG) 96685 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=2.3894, expected range: 0.0000 1.2821
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 88 : all data missing
Severe: obs_number=0, expected range: 119.10 142.90
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 48 : all data missing
Severe: obs_number=0, expected range: 136.53 161.25
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 56492 PRESSURE LAYER 900-12 : out of range
Severe: avg_pge=0.9317, expected range: -0.6295 0.7500
Severe: rms_fgdepar=23.8317, expected range: 0.0000 5.2894
Severe: avg_fgdepar=23.8317, expected range: -0.7228 5.1479
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 55299 PRESSURE LAYER 0-300 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9138, expected range: -0.0688 0.1712
Severe: avg_fgdepar=36.3714, expected range: 0.0250 5.6566
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 55299 (2 pressure layers af : out of range
Severe: rms_fgdepar=36.3714, expected range: 0.0000 6.6836
HIGH RESO LAND TEMP Q (G/KG) 94374 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.4210, expected range: 0.0000 1.1847
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: rms_fgdepar=3.1158, expected range: 0.3775 1.9582
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 300-600 (HPA) : out of range
Considerable: obs_number=244.0000, expected range: 279.8363 294.4137
amdar
ADS-C WIND VECTOR DIFF (M/S) CKEEBURA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=27.9821, expected range: 0.0000 22.6816
Severe: avg_fgdepar=25.5245, expected range: -1.8062 12.0699
airep
AIREP WIND VECTOR DIFF (M/S) ANZ1010 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=34.3620, expected range: 0.0000 17.3522
Severe: avg_fgdepar=34.2262, expected range: -3.9340 13.8297
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 41624 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_pge=0.8093, expected range: -0.8054 0.7500
Severe: rms_fgdepar=16.2438, expected range: 0.0000 11.1594
LAND PILOT WIND VECTOR DIFF (M/S) 72402 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=17.0100, expected range: 0.7690 7.0747
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 18138 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8322, expected range: 0.7068 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 18162 : out of range
36 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=810.2715, expected range: 628.5853 797.6240
Severely_persistent: avg_fgdepar=810.0985, expected range: 628.5495 796.6216
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 17891 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8180, expected range: 0.7276 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 68425 : out of range
Severe: avg_pge=0.9479, expected range: -0.0247 0.0341
Severe: rms_fgdepar=47.6092, expected range: 0.0000 23.4323
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
Severe: rms_fgdepar=160.4787, expected range: 33.2323 93.9195
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 35358 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8631, expected range: -1.3751 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 35777 : out of range
Severe: avg_pge=0.8477, expected range: -0.6180 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 67295 : out of range
Severe: rms_fgdepar=602.7576, expected range: 354.8032 774.4149
Severe: avg_fgdepar=602.7576, expected range: 354.4679 774.5099
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 35705 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=383.7453, expected range: 0.0000 214.5278
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40872 : out of range
Severe: rms_fgdepar=365.1808, expected range: 1.1247 129.8172
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 62002 : out of range
Severe: rms_fgdepar=470.8377, expected range: 0.0000 260.3922
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 89251 : out of range
Severe: avg_pge=0.9447, expected range: -0.8822 0.7500
Severe: rms_fgdepar=1100.9927, expected range: 0.0000 290.7710
Severe: avg_fgdepar=1100.9927, expected range: -217.8003 333.8256
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 76311 : out of range
Severe: avg_pge=0.8347, expected range: -1.0395 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 65510 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8057, expected range: 0.7215 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 29653 : out of range
Severe: avg_pge=0.8295, expected range: 0.0000 0.0000
Severe: rms_fgdepar=347.6823, expected range: 0.0000 140.9583
BUFR LAND SYNOP SURFACE PRESSURE (PA) 23862 : out of range
Severe: rms_fgdepar=333.3895, expected range: 0.0000 177.8739
BUFR LAND SYNOP RH2M (%) 71526 : out of range
Severe: rms_fgdepar=31.6386, expected range: 0.0000 16.5522
BUFR LAND SYNOP RH2M (%) 71565 : out of range
Severe: rms_fgdepar=56.3652, expected range: 0.0000 55.4781
Severe: avg_fgdepar=56.3652, expected range: -37.9105 59.6054
BUFR LAND SYNOP RH2M (%) 94311 : out of range
Severe: avg_pge=0.9990, expected range: -0.0631 0.0987
BUFR LAND SYNOP RH2M (%) 15260 : out of range
Severe: rms_fgdepar=58.1249, expected range: 0.0000 43.4092
Severe: avg_fgdepar=58.0566, expected range: -19.9001 43.1309
ship
SHIP SURFACE PRESSURE (PA) VRRQ7 : out of range
Severe: avg_pge=0.9278, expected range: -0.8065 0.7500
Severe: rms_fgdepar=919.8472, expected range: 0.0000 448.9563
Severe: avg_fgdepar=919.8472, expected range: -380.1051 369.2615
BUFR SHIP SYNOP SURFACE PRESSURE (PA) KSKM : out of range
Severe: avg_pge=0.8202, expected range: -0.7733 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3FCD9 : out of range
Severe: avg_pge=0.8287, expected range: 0.4741 0.7500
Severe: rms_fgdepar=598.8608, expected range: 17.6325 738.9930
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRQO8 : out of range
Severe: avg_pge=0.8368, expected range: -1.1118 0.7500
Severe: rms_fgdepar=631.8572, expected range: 0.0000 392.0604
Severe: avg_fgdepar=-631.8572, expected range: -370.5968 168.0199
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRLI8 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8347, expected range: 0.3804 0.7500
Severe: rms_fgdepar=541.0707, expected range: 326.9613 606.1115
Severe: avg_fgdepar=-538.4413, expected range: 327.0496 603.7417
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VROX2 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8278, expected range: -1.1363 0.7500
Severe: rms_fgdepar=726.0876, expected range: 0.0000 414.3588
Severe: avg_fgdepar=694.2167, expected range: -393.0474 388.9698
BUFR SHIP SYNOP SURFACE PRESSURE (PA) ZDNC2 : out of range
Severe: rms_fgdepar=332.8354, expected range: 0.0000 141.0292
buoy
MOORED BUOYS SURFACE PRESSURE (PA) 6301004 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8677, expected range: -1.0003 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4401577 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8738, expected range: -1.2795 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4601840 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8839, expected range: -0.6559 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5301506 : out of range
Severe: avg_pge=0.8076, expected range: -0.7900 0.7500
Severe: rms_fgdepar=334.9409, expected range: 0.0000 236.0603
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101753 : out of range
Severe: rms_fgdepar=422.9577, expected range: 0.0000 71.8739
DRIFTING BUOYS SURFACE PRESSURE (PA) 6203582 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8539, expected range: -0.3414 0.4123
Severe: rms_fgdepar=540.9666, expected range: 0.0000 135.1301
metar
METAR SURFACE PRESSURE (PA) FNSU : out of range
Severe: rms_fgdepar=384.6782, expected range: 0.0000 158.8715
METAR SURFACE PRESSURE (PA) HRYR : out of range
Severe: rms_fgdepar=550.3452, expected range: 4.4545 161.2607
METAR SURFACE PRESSURE (PA) EISG : out of range
Severe: rms_fgdepar=416.8763, expected range: 0.0000 176.7336
METAR SURFACE PRESSURE (PA) FNSA : out of range
Severe: rms_fgdepar=564.3828, expected range: 0.0000 389.7057
Severe: avg_fgdepar=564.3828, expected range: -512.6751 400.9253
METAR SURFACE PRESSURE (PA) FNCA : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8391, expected range: -0.0574 0.0629
Severe: rms_fgdepar=600.9040, expected range: 0.0000 182.3736
Severe: avg_fgdepar=-600.4267, expected range: -220.6899 215.3415
snow
MANUAL LAND SYNOP SNOW (CM) 20107 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=94.3214, expected range: 83.5941 103.5848
Severely_persistent: avg_fgdepar=94.3214, expected range: 83.5941 103.5848
MANUAL LAND SYNOP SNOW (CM) 30815 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=63.5662, expected range: 54.6939 68.3833
Severely_persistent: avg_fgdepar=63.5662, expected range: 54.6939 68.3833
ROCOB TEMP SNOW (CM) 63309115 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=53.0138, expected range: 43.5771 55.6439
Severely_persistent: avg_fgdepar=-53.0138, expected range: -55.6439 -43.5771
BUFR LAND SYNOP SNOW (CM) 20107 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=92.1637, expected range: 81.5535 100.8220
Severely_persistent: avg_fgdepar=92.1637, expected range: 81.5535 100.8220
BUFR LAND SYNOP SNOW (CM) 01036 : out of range
32 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=114.8067, expected range: 48.7254 133.5776
Severely_persistent: avg_fgdepar=-114.8046, expected range: -133.5120 -48.7006
BUFR LAND SYNOP SNOW (CM) 30815 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=63.8542, expected range: 54.8886 68.6834
Severely_persistent: avg_fgdepar=63.8542, expected range: 54.8886 68.6834
BUFR LAND SYNOP SNOW (CM) 01091 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=102.2454, expected range: 67.3845 103.1639
Severely_persistent: avg_fgdepar=-102.2438, expected range: -103.1379 -67.3680
BUFR LAND SYNOP SNOW (CM) 01480 : out of range
24 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=65.8943, expected range: 48.2105 73.0815
Severely_persistent: avg_fgdepar=-65.8898, expected range: -92.5932 -24.4644
MANUAL LAND SYNOP SNOW (CM) 24923 : out of range
Severe: rms_fgdepar=20.3191, expected range: 0.0000 3.8517
ROCOB TEMP SNOW (CM) 63700029 : out of range
Severe: rms_fgdepar=28.0314, expected range: 30.7734 33.8196
ROCOB TEMP SNOW (CM) 64301144 : out of range
Severe: rms_fgdepar=22.9918, expected range: 0.0000 12.3579
BUFR LAND SYNOP SNOW (CM) 17077 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=90.4298, expected range: -8.9807 17.0909
Severe: avg_fgdepar=90.4298, expected range: -18.0098 10.9033
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 52955 : out of range
Severe: rms_fgdepar=12.9924, expected range: 0.0000 13.3863
Severe: avg_fgdepar=12.9924, expected range: -15.9846 19.4056
MANUAL LAND SYNOP 2M TEMPERATURE (K) 42767 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=13.9150, expected range: -6.3834 12.1862
Severe: avg_fgdepar=-13.9150, expected range: -12.1963 6.4052
MANUAL LAND SYNOP 2M TEMPERATURE (K) 14007 : out of range
Severe: rms_fgdepar=10.6116, expected range: 0.0000 5.2877
MANUAL LAND SYNOP 2M TEMPERATURE (K) 65442 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=11.4613, expected range: 0.0000 5.3209
METAR 2M TEMPERATURE (K) LTCB : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=16.1923, expected range: 4.2847 16.2491
Severe: avg_fgdepar=16.0424, expected range: 4.8905 15.2909
BUFR LAND SYNOP 2M TEMPERATURE (K) 42767 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=13.9503, expected range: -6.3504 12.2301
Severe: avg_fgdepar=-13.9503, expected range: -12.2304 6.3510
MANUAL LAND SYNOP 2M TEMPERATURE (K) : out of range
Considerable: obs_number=276.0000, expected range: 109.6097 207.3314
rh2m
All BUFR LAND SYNOP WMO BLOCK 76 : all data missing
Severe: obs_number=0, expected range: 23.94 269.19