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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-11-20 00:00

amsua
METOP-C AMSUA ALL SKY RADIANCES CHANNEL 8 : out of range
3 times in the last 10 days for at least one item
Severe: avg_biascorr=-0.1847, expected range: -0.2790 -0.2267
AMSUA Pacific RARS
All NOAA-18 AMSUA ALL SKY CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 359.87 1681.12
All NOAA-19 AMSUA ALL SKY CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 114.61 1466.89
iasi
METOP-B IASI RADIANCES CHANNEL 1639 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0045, expected range: 0.0278 0.0571
Atmospheric Motion Vector
All HIMAWARI-8 AMV CLOUDY WV3 ALL LAYERS Global : all data missing
Severely_persistent: obs_number=0, expected range: 256.69 867.14
resat
AURA OMI OZONE, TOP PRESSURE LAYER 12-13 (HPA) : out of range
Slight: obs_number=14376.0000, expected range: 17539.8332 24295.6668
Radiosondes
LAND TEMP TEMPERATURE (K) 30758 PRESSURE LAYER 900-1200 (HPA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8630, expected range: -0.7643 0.7500
LAND TEMP Q (G/KG) 96935 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.8207, expected range: 0.1746 1.4882
LAND TEMP Q (G/KG) 38341 PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9647, expected range: -1.5801 0.7500
LAND TEMP TEMPERATURE (K) 43285 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=9.5593, expected range: 0.0000 12.8018
LAND TEMP WIND VECTOR DIFF (M/S) 32477 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8038, expected range: -0.4772 0.7500
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU0187 PRESSURE LAYER 900-1200 (HPA : out of range
Severe: rms_fgdepar=17.0838, expected range: 0.0000 5.7215
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU4055 PRESSURE LAYER 900-1200 (HPA : out of range
Severe: rms_fgdepar=18.8301, expected range: 0.0000 8.5406
WIGOS AMDAR TEMPERATURE (K) WV3GXHBA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=7.6735, expected range: 0.0000 4.0485
WIGOS AMDAR Q (G/KG) DVPUOFZA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.9150, expected range: -0.6954 0.7500
MODE-S WIND VECTOR DIFF (M/S) M02DA3A PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=16.9452, expected range: 0.0000 9.3481
MODE-S WIND VECTOR DIFF (M/S) M4A1D2F PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=17.7827, expected range: 0.0000 4.9640
MODE-S WIND VECTOR DIFF (M/S) M4F1A2C PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=19.2404, expected range: 0.0000 7.7285
MODE-S WIND VECTOR DIFF (M/S) M86BCC0 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=18.8188, expected range: 0.0000 6.0289
MODE-S WIND VECTOR DIFF (M/S) M9ACF77 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=16.0373, expected range: 0.0000 7.0813
MODE-S WIND VECTOR DIFF (M/S) ME494ED PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=15.5953, expected range: 0.0000 6.8306
MODE-S WIND VECTOR DIFF (M/S) MFCA15A PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=18.2629, expected range: 0.0000 9.5734
airep
AIREP WIND VECTOR DIFF (M/S) QFA9 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.8696, expected range: 0.0000 19.3065
Severe: avg_pge=0.8170, expected range: -0.3728 0.6916
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 42299 PRESSURE LAYER 300-600 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=20.8262, expected range: 0.0186 6.4594
synop
MANUAL LAND SYNOP RH2M (%) 65125 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=50.6276, expected range: -43.2299 109.7869
Severely_persistent: rms_fgdepar=50.6276, expected range: 0.0000 109.7869
Severely_persistent: avg_pge=0.9963, expected range: -1.3696 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 81797 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=610.4608, expected range: 490.7668 706.3101
Severely_persistent: rms_fgdepar=610.6266, expected range: 491.3292 706.4038
BUFR LAND SYNOP SURFACE PRESSURE (PA) 84825 : out of range
28 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-518.8488, expected range: -679.6954 -364.2215
Severely_persistent: rms_fgdepar=519.0095, expected range: 366.7529 679.7203
AUTOMATIC LAND SYNOP RH2M (%) 28678 : out of range
Severe: rms_fgdepar=35.3403, expected range: 0.0000 20.0598
MANUAL LAND SYNOP RH2M (%) 42623 : out of range
Severe: avg_pge=0.9163, expected range: -0.1168 0.1563
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 60355 : out of range
Severe: rms_fgdepar=385.7021, expected range: 120.0035 302.2083
Severe: avg_pge=0.8522, expected range: 0.6354 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 63471 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=1071.0280, expected range: 941.1904 1274.8937
Severe: rms_fgdepar=1071.0280, expected range: 940.9122 1275.6745
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 65450 : out of range
Severe: avg_fgdepar=-1075.2407, expected range: -205.4797 45.9985
Severe: rms_fgdepar=1075.2407, expected range: 0.0000 227.5026
Severe: avg_pge=0.9446, expected range: -0.6095 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83698 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-512.3570, expected range: -766.0376 628.8431
Severe: rms_fgdepar=512.3570, expected range: -444.2293 656.8781
Severe: avg_pge=0.8831, expected range: -1.4918 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 14658 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8503, expected range: -0.4812 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 33562 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=575.5922, expected range: -983.2898 1299.0009
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41863 : out of range
Severe: rms_fgdepar=578.7998, expected range: 0.0000 162.6773
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41951 : out of range
Severe: rms_fgdepar=477.8018, expected range: 0.0000 142.9402
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41964 : out of range
Severe: rms_fgdepar=494.5733, expected range: 0.0000 220.1005
BUFR LAND SYNOP SURFACE PRESSURE (PA) 96781 : out of range
Severe: rms_fgdepar=319.0765, expected range: 0.0000 143.1928
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 8VY2YWF : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8718, expected range: -1.2684 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) V7AT9 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8011, expected range: -0.3277 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) WSAF : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8149, expected range: 0.1630 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WYQ4356 : out of range
42 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-777.0332, expected range: -2529.9980 3215.2009
Severely_persistent: rms_fgdepar=780.4595, expected range: 0.0000 2123.0767
Severely_persistent: avg_pge=0.8913, expected range: -0.7378 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9V8197 : out of range
Severe: avg_fgdepar=22.6917, expected range: -30.1586 61.3448
Severe: rms_fgdepar=23.0974, expected range: 0.0000 62.7526
Severe: avg_pge=0.9214, expected range: -0.2895 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) C6CN5 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=19.0008, expected range: 0.0000 7.8656
Severe: avg_pge=0.8577, expected range: -0.7648 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) ZCEV4 : out of range
Severe: avg_fgdepar=20.6454, expected range: -6.0913 12.7985
Severe: rms_fgdepar=20.6454, expected range: 0.0000 14.5749
Severe: avg_pge=0.9140, expected range: -0.9161 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) CFK5152 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=692.3851, expected range: 0.0000 901.5551
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7TO3 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-828.5566, expected range: -523.2584 314.9614
Severe: rms_fgdepar=828.5566, expected range: 0.0000 587.8407
Severe: avg_pge=0.8948, expected range: -0.6896 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRJM6 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-783.8203, expected range: -146.1698 575.2844
Severe: rms_fgdepar=783.8203, expected range: 0.0000 508.0971
Severe: avg_pge=0.8884, expected range: -0.4026 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WGEB : out of range
Severe: avg_fgdepar=1356.7256, expected range: -1820.6700 3098.3614
Severe: rms_fgdepar=1356.7256, expected range: 0.0000 3102.7314
Severe: avg_pge=0.9230, expected range: -1.6791 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101718 : out of range
23 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8654, expected range: -1.5108 0.7500
metar
METAR SURFACE PRESSURE (PA) LYPG : out of range
Severe: rms_fgdepar=465.8104, expected range: 0.0000 223.4897
snow
BUFR LAND SYNOP SNOW (CM) _MF1EB15 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-780.0733, expected range: -801.5062 -774.2719
Severely_persistent: rms_fgdepar=780.0736, expected range: 774.3861 801.4721
BUFR LAND SYNOP SNOW (CM) _MI17AC6 : out of range
36 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-71.2035, expected range: -82.9974 -47.0685
Severely_persistent: rms_fgdepar=71.2053, expected range: 47.1076 82.9981
BUFR LAND SYNOP SNOW (CM) _MI1EDCD : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=98.9432, expected range: 100.0000 100.0000
Severely_persistent: rms_fgdepar=98.9432, expected range: 100.0000 100.0000
ROCOB TEMP SNOW (CM) 64300862 : out of range
Severe: rms_fgdepar=21.0008, expected range: -0.0281 0.0347
BUFR LAND SYNOP SNOW (CM) : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-68.1583, expected range: -113.9762 -92.6197
Severe: rms_fgdepar=413.8606, expected range: 507.6410 562.0447
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02036 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.5258, expected range: -24.9002 14.9590
Severely_persistent: rms_fgdepar=13.5287, expected range: 0.0000 22.9318
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71652 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-15.7165, expected range: -21.8657 25.0889
Severely_persistent: rms_fgdepar=15.7305, expected range: 0.0000 19.8613
MANUAL LAND SYNOP 2M TEMPERATURE (K) 25627 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-12.7465, expected range: -21.5590 11.7324
Severely_persistent: rms_fgdepar=12.8323, expected range: 0.0000 19.9314
MANUAL LAND SYNOP 2M TEMPERATURE (K) 25904 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.4777, expected range: -22.7638 14.2890
Severely_persistent: rms_fgdepar=13.7765, expected range: 0.0000 19.2620
METAR 2M TEMPERATURE (K) LTCB : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=15.8917, expected range: 0.4720 20.1647
Severely_persistent: rms_fgdepar=15.9928, expected range: 2.1138 19.4050
BUFR LAND SYNOP 2M TEMPERATURE (K) 01064 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=18.2262, expected range: -16.4489 20.5622
Severely_persistent: rms_fgdepar=18.2704, expected range: -11.5501 19.6562
BUFR LAND SYNOP 2M TEMPERATURE (K) 02036 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.6926, expected range: -26.8770 15.5726
Severely_persistent: rms_fgdepar=13.7183, expected range: 0.0000 24.7423
BUFR LAND SYNOP 2M TEMPERATURE (K) 25627 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-12.7097, expected range: -21.0411 11.3063
Severely_persistent: rms_fgdepar=12.7990, expected range: 0.0000 19.4864
BUFR LAND SYNOP 2M TEMPERATURE (K) 25904 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.5277, expected range: -22.8138 14.2390
Severely_persistent: rms_fgdepar=13.8254, expected range: 0.0000 19.3537
BUFR LAND SYNOP 2M TEMPERATURE (K) 71652 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-15.4650, expected range: -21.3749 24.4654
Severely_persistent: rms_fgdepar=15.4798, expected range: 0.0000 19.3632
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13804 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-17.5308, expected range: -51.0740 32.3060
Severely_persistent: rms_fgdepar=17.5409, expected range: 8.4106 24.4483
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI1D581 : out of range
36 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.4397, expected range: -20.5592 -10.6833
Severely_persistent: rms_fgdepar=13.4819, expected range: 10.6835 20.6013
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02764 : out of range
Severe: avg_fgdepar=-12.6546, expected range: -12.0268 9.4555
Severe: rms_fgdepar=12.6546, expected range: 0.0000 10.2909
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02827 : out of range
Severe: avg_fgdepar=-13.8023, expected range: -11.5078 5.8511
Severe: rms_fgdepar=13.8023, expected range: 0.0000 11.4239
MANUAL LAND SYNOP 2M TEMPERATURE (K) 24076 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-12.3052, expected range: -25.3846 12.8638
Severe: rms_fgdepar=12.3085, expected range: 0.0000 17.5178
METAR 2M TEMPERATURE (K) CYKG : out of range
Severe: avg_fgdepar=14.5093, expected range: -2.0093 9.4113
Severe: rms_fgdepar=14.5093, expected range: 0.0000 9.4372
METAR 2M TEMPERATURE (K) KSKA : out of range
Severe: rms_fgdepar=12.7380, expected range: 0.0000 11.0856
METAR 2M TEMPERATURE (K) PAEI : out of range
Severe: avg_fgdepar=17.6775, expected range: -19.3297 12.7951
Severe: rms_fgdepar=17.6775, expected range: 0.0000 17.1498
LAND TEMP 2M TEMPERATURE (K) 30557 : out of range
Severe: avg_fgdepar=-12.1340, expected range: -13.7614 3.3663
Severe: rms_fgdepar=12.1340, expected range: 0.0000 13.0976
LAND TEMP 2M TEMPERATURE (K) 73110 : out of range
Severe: avg_fgdepar=19.9174, expected range: -3.1353 2.4311
Severe: rms_fgdepar=19.9174, expected range: 0.0000 2.6678
Severe: avg_est_pge=0.8093, expected range: -0.0099 0.0119
BUFR LAND SYNOP 2M TEMPERATURE (K) 02827 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-12.9288, expected range: -11.2343 5.6992
Severe: rms_fgdepar=12.9435, expected range: 0.0000 11.5875
BUFR LAND SYNOP 2M TEMPERATURE (K) 24076 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-12.2545, expected range: -25.3634 12.7668
Severe: rms_fgdepar=12.2579, expected range: 0.0000 17.6137
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI16C34 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=13.9520, expected range: -1.9806 10.4441
Severe: rms_fgdepar=13.9724, expected range: 0.0000 10.7036
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 26403 : out of range
Severe: rms_fgdepar=36.3545, expected range: 0.0000 17.8736
MANUAL LAND SYNOP RH2M (%) 68026 : out of range
Severe: rms_fgdepar=37.9271, expected range: 0.0000 15.8576
MANUAL LAND SYNOP RH2M (%) 82690 : out of range
Severe: rms_fgdepar=37.9127, expected range: 0.0000 11.7221