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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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

amsua
METOP-A/AMSUA RADIANCES (10 channels affected) : out of range
Slight: obs_number=4027.0000, expected range: 6242.4290 15300.5154
iasi
METOP-B/IASI RADIANCES (293 channels affected) : out of range
Severe: obs_number=15513.0000, expected range: 21427.4634 23717.3475
Atmospheric Motion Vector
METOP-B/AMV IR WIND VECTOR DIFF (M/S) PRESSURE LAYER 600-900 (HPA) : out of range
Considerable: avg_fgdepar=2.8755, expected range: 3.1384 4.0598
Radiosondes
LAND TEMP WIND VECTOR DIFF (M/S) 41923 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.5041, expected range: 0.0000 8.8323
LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : missing
Severe: obs_number=0.0000, expected range: 48.7125 102.2286
LAND TEMP TEMPERATURE (K) 42701 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=9.6668, expected range: 0.0000 3.6952
LAND TEMP TEMPERATURE (K) 32477 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.7987, expected range: 0.0000 4.4272
Severe: avg_pge=0.9139, expected range: -0.3128 0.5496
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 17281 PRESSURE LAYER 900-12 : out of range
Severe: rms_fgdepar=22.2738, expected range: 0.0000 12.6702
Severe: avg_pge=0.8870, expected range: -0.6064 0.7500
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 47678 PRESSURE LAYER 900-12 : out of range
Severe: rms_fgdepar=28.3391, expected range: 0.0000 8.3252
Severe: avg_pge=0.9217, expected range: -0.3538 0.5500
HIGH RESO LAND TEMP TEMPERATURE (K) 27707 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=8.8004, expected range: 0.0000 6.5715
Severe: avg_pge=0.8091, expected range: -0.6285 0.7500
amdar
WIGOS AMDAR TEMPERATURE (K) 0OBGUWJA PRESSURE LAYER 900-1200 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=6.6533, expected range: -3.5859 5.1990
Severe: avg_pge=0.8868, expected range: -1.3404 0.7500
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 10410 PRESSURE LAYER 600-900 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=24.1998, expected range: 0.0000 13.2366
Severe: avg_pge=0.9005, expected range: -0.6866 0.7500
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 10950 PRESSURE LAYER 600-900 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8844, expected range: -0.4252 0.7500
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 10780 PRESSURE LAYER 600-900 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8814, expected range: -0.7712 0.7500
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 10832 PRESSURE LAYER 600-900 : out of range
Severe: rms_fgdepar=17.2364, expected range: 0.0000 14.9874
Severe: avg_pge=0.8834, expected range: -0.5610 0.7500
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 10605 PRESSURE LAYER 600-900 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=23.7196, expected range: 0.0000 15.7820
Severe: avg_pge=0.9084, expected range: -0.4043 0.7500
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 07145 PRESSURE LAYER 600-900 : out of range
Severe: rms_fgdepar=20.4998, expected range: 0.0000 12.2303
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 07145 (2 pressure layers affe : out of range
Severe: avg_pge=0.8951, expected range: -0.9876 0.7500
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 10356 PRESSURE LAYER 600-900 : out of range
Severe: rms_fgdepar=22.2656, expected range: 0.0000 10.4518
Severe: avg_pge=0.9060, expected range: -0.6571 0.7500
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 12568 PRESSURE LAYER 600-900 : out of range
Severe: avg_pge=0.8612, expected range: -0.6175 0.7500
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 10488 PRESSURE LAYER 600-900 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8927, expected range: -0.5466 0.7500
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 10629 PRESSURE LAYER 600-900 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8904, expected range: -0.6487 0.7500
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 10339 PRESSURE LAYER 600-900 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=22.3790, expected range: 0.0000 13.8169
Severe: avg_pge=0.8322, expected range: -0.6985 0.7500
synop
BUFR LAND SYNOP SURFACE PRESSURE (PA) 78896 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8592, expected range: -0.6423 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 47770 : out of range
Severe: rms_fgdepar=304.9095, expected range: 0.0000 117.6569
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 47772 : out of range
Severe: rms_fgdepar=439.5372, expected range: 0.0000 126.2133
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 47663 : out of range
Severe: rms_fgdepar=325.5736, expected range: 0.0000 151.1651
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 47756 : out of range
Severe: rms_fgdepar=330.1747, expected range: 0.0000 124.3968
Severe: avg_pge=0.8039, expected range: -0.2221 0.3717
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 47778 : out of range
Severe: rms_fgdepar=305.5750, expected range: 0.0000 78.2912
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 47770 : out of range
Severe: rms_fgdepar=303.3814, expected range: 0.0000 127.6893
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 47780 : out of range
Severe: rms_fgdepar=302.7596, expected range: 0.0000 141.1716
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 47651 : out of range
Severe: rms_fgdepar=322.0632, expected range: 0.0000 138.1501
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 47772 : out of range
Severe: rms_fgdepar=341.9305, expected range: 0.0000 129.7245
MANUAL LAND SYNOP RH2M (%) 60750 : out of range
Severe: rms_fgdepar=47.3702, expected range: 0.0000 24.1891
Severe: avg_pge=0.9907, expected range: -0.0006 0.0071
MANUAL LAND SYNOP RH2M (%) 95813 : out of range
Severe: rms_fgdepar=42.4870, expected range: 0.0000 35.6105
Severe: avg_pge=0.8548, expected range: -0.3903 0.4378
MANUAL LAND SYNOP RH2M (%) 31285 : out of range
Severe: rms_fgdepar=56.0584, expected range: 0.0000 30.5623
Severe: avg_pge=0.8705, expected range: -0.2307 0.2604
MANUAL LAND SYNOP RH2M (%) 40016 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9728, expected range: -1.7228 0.7500
MANUAL LAND SYNOP RH2M (%) 94466 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8811, expected range: -1.9291 0.7500
MANUAL LAND SYNOP RH2M (%) 42177 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9548, expected range: -0.6137 0.6961
BUFR LAND SYNOP SURFACE PRESSURE (PA) 16325 : out of range
Severe: rms_fgdepar=585.6270, expected range: 0.0000 164.2854
Severe: avg_pge=0.9102, expected range: -0.6977 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 72386 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=370.7924, expected range: 0.0000 160.5564
Severe: avg_pge=0.8162, expected range: -0.3348 0.3884
BUFR LAND SYNOP RH2M (%) 11310 : out of range
Severe: avg_pge=0.9343, expected range: -0.4792 0.5884
BUFR LAND SYNOP RH2M (%) 06750 : out of range
Severe: rms_fgdepar=51.4596, expected range: 0.0000 44.1449
Severe: avg_pge=0.9995, expected range: -0.4383 0.5141
BUFR LAND SYNOP RH2M (%) 94451 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9442, expected range: -1.8761 0.7500
BUFR LAND SYNOP RH2M (%) 94466 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9390, expected range: -1.9098 0.7500
BUFR LAND SYNOP RH2M (%) 15118 : out of range
Severe: avg_pge=0.9682, expected range: -0.6139 0.7337
BUFR LAND SYNOP RH2M (%) 06799 : out of range
Severe: avg_pge=0.8107, expected range: -1.1236 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) : out of range
2 times in the last 10 days for at least one item
Considerable: rms_fgdepar=110.8981, expected range: 34.1031 80.2724
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
Considerable: obs_number=58.0000, expected range: 63.9401 81.6155
ship
AUTOMATIC SHIP WIND VECTOR DIFF (M/S) CFL24 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=27.3308, expected range: 0.0000 9.8467
Severely_persistent: avg_pge=0.9321, expected range: -0.6494 0.7500
SHIP SURFACE PRESSURE (PA) 9V9450 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8415, expected range: -1.0628 0.7500
SHIP WIND VECTOR DIFF (M/S) C6XQ2 : out of range
Severe: rms_fgdepar=16.6582, expected range: 0.0000 6.3821
SHIP WIND VECTOR DIFF (M/S) ONFZ : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9150, expected range: -0.4400 0.7500
SHIP SURFACE PRESSURE (PA) C6XQ2 : out of range
Severe: rms_fgdepar=377.4607, expected range: 0.0000 147.2659
SHIP SURFACE PRESSURE (PA) VRCS2 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=460.2940, expected range: 0.0000 312.9695
Severe: avg_pge=0.8516, expected range: -1.0921 0.7500
SHIP SURFACE PRESSURE (PA) D5RN8 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8992, expected range: -0.8049 0.7500
SHIP SURFACE PRESSURE (PA) 9HXC9 : out of range
Severe: rms_fgdepar=674.8054, expected range: 0.0000 348.2728
SHIP SURFACE PRESSURE (PA) H3GS : out of range
Severe: rms_fgdepar=577.0352, expected range: 0.0000 114.2590
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 7401507 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8694, expected range: -0.1685 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1402552 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8483, expected range: -1.0702 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 3301508 : out of range
Severe: rms_fgdepar=412.7236, expected range: 0.0000 240.1879
Severe: avg_pge=0.8295, expected range: -0.7627 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5601568 : out of range
Severe: avg_pge=0.8045, expected range: -0.4776 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
3 times in the last 10 days for at least one item
Severe: obs_number=52.0000, expected range: 61.1590 70.2465
metar
METAR SURFACE PRESSURE (PA) RJBE : out of range
Severe: rms_fgdepar=382.4796, expected range: 0.0000 211.6273
METAR SURFACE PRESSURE (PA) LIBH : out of range
Severe: rms_fgdepar=460.0946, expected range: 0.0000 223.8752
snow
MANUAL LAND SYNOP SNOW (CM) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-5.2095, expected range: -0.3517 0.4049
Severely_persistent: rms_fgdepar=131.8656, expected range: -2.2955 3.1395
BUFR LAND SYNOP SNOW (CM) : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=0.8606, expected range: 60.6139 116.3544
Slight: avg_fgdepar=0.0418, expected range: -5.1666 -1.1762
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 11310 : out of range
Severe: rms_fgdepar=12.0079, expected range: 0.0000 6.8949
Severe: avg_est_pge=0.8313, expected range: -0.3390 0.7837
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 06750 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.7439, expected range: 0.0000 4.5655
Severe: avg_est_pge=0.8069, expected range: -0.1966 0.3945
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 68833 : out of range
Severe: rms_fgdepar=15.2748, expected range: 0.3253 4.0329
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 06785 : out of range
Severe: rms_fgdepar=12.4540, expected range: 0.0000 5.8998
Severe: avg_est_pge=0.8305, expected range: -0.1444 0.7220
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 01036 : out of range
Severe: rms_fgdepar=7.2139, expected range: 0.1544 3.3487
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 06617 : out of range
Severe: rms_fgdepar=9.3014, expected range: 0.0000 4.2646
MANUAL LAND SYNOP 2M TEMPERATURE (K) 11021 : out of range
Severe: rms_fgdepar=8.5203, expected range: 0.0000 3.6138
MANUAL LAND SYNOP 2M TEMPERATURE (K) 72564 : out of range
Severe: rms_fgdepar=9.5737, expected range: 0.0000 3.8958
MANUAL LAND SYNOP 2M TEMPERATURE (K) 56106 : out of range
Severe: avg_est_pge=0.8224, expected range: 0.1258 1.0170
MANUAL LAND SYNOP 2M TEMPERATURE (K) 24737 : out of range
Severe: rms_fgdepar=8.1083, expected range: 0.0000 4.2086
MANUAL LAND SYNOP 2M TEMPERATURE (K) 68618 : out of range
Severe: rms_fgdepar=9.6193, expected range: 0.0000 4.1177
MANUAL LAND SYNOP 2M TEMPERATURE (K) 71728 : out of range
Severe: rms_fgdepar=7.2022, expected range: 0.0000 4.0759
MANUAL LAND SYNOP 2M TEMPERATURE (K) 23589 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.4905, expected range: 0.0000 3.9802
METAR 2M TEMPERATURE (K) KNCA : out of range
Severe: rms_fgdepar=8.4014, expected range: 0.6500 4.5964
METAR 2M TEMPERATURE (K) GMTA : out of range
Severe: rms_fgdepar=8.6524, expected range: 0.0000 4.8208
METAR 2M TEMPERATURE (K) MMTC : out of range
Severe: rms_fgdepar=7.1496, expected range: 0.9065 4.0480
METAR 2M TEMPERATURE (K) ETAR : out of range
Severe: rms_fgdepar=14.9905, expected range: 0.0000 3.2210
METAR 2M TEMPERATURE (K) MMCV : out of range
Severe: rms_fgdepar=7.6465, expected range: 0.6212 4.5819
LAND TEMP 2M TEMPERATURE (K) 76612 : out of range
Severe: avg_est_pge=0.8092, expected range: -0.4386 1.1327
LAND TEMP 2M TEMPERATURE (K) 29862 : out of range
Severe: avg_est_pge=0.8262, expected range: -0.5574 1.0640
LAND TEMP 2M TEMPERATURE (K) 30557 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8267, expected range: -0.3392 1.3406
LAND TEMP 2M TEMPERATURE (K) 24908 : out of range
Severe: rms_fgdepar=8.5631, expected range: 0.0000 4.9049
Severe: avg_est_pge=0.8020, expected range: -0.4082 0.6941
BUFR LAND SYNOP 2M TEMPERATURE (K) 11310 : out of range
Severe: rms_fgdepar=12.0699, expected range: 0.0000 6.8365
Severe: avg_est_pge=0.8321, expected range: -0.3367 0.7785
BUFR LAND SYNOP 2M TEMPERATURE (K) 06750 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.7600, expected range: 0.0000 4.5766
Severe: avg_est_pge=0.8074, expected range: -0.2025 0.4013
BUFR LAND SYNOP 2M TEMPERATURE (K) 10962 : out of range
Severe: rms_fgdepar=8.4740, expected range: 0.0000 4.0042
BUFR LAND SYNOP 2M TEMPERATURE (K) 06785 : out of range
Severe: rms_fgdepar=12.4063, expected range: 0.0000 5.7944
Severe: avg_est_pge=0.8299, expected range: -0.1511 0.7110
BUFR LAND SYNOP 2M TEMPERATURE (K) 06617 : out of range
Severe: rms_fgdepar=9.4236, expected range: 0.0000 4.2293
rh2m
BUFR LAND SYNOP RH2M (%) : out of range
Considerable: obs_number=533.0000, expected range: 388.6450 491.8814