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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2020-05-29 12:00

mwhs2
FY-3C MWHS2 ALLSKY RADIANCES CHANNEL 6 : out of range
Severe: stdev_norm_fgdepar=0.8303, expected range: 0.6954 0.7681
FY-3C MWHS2 ALLSKY RADIANCES CHANNEL 14 : out of range
Considerable: avg_norm_fgdepar=-0.1935, expected range: -0.0942 0.0808
atms
NOAA20 ATMS RADIANCES (7 channels affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=3821.0000, expected range: 3139.4753 3674.9953
ssmis
DMSP-18 SSMIS RADIANCES CHANNEL 10 : out of range
Considerable: stdev_norm_fgdepar=0.6758, expected range: 0.5423 0.6186
gpsro
All FY-3C GNOS RISING ALL HEIGHTS Global : all data missing
Severe: obs_number=0, expected range: 467.59 2312.99
All COSMIC2-E6 GPSRO RISING ALL HEIGHTS Global : all data missing
Severe: obs_number=0, expected range: 1020.09 2559.44
Atmospheric Motion Vector
NPP VIIRS AMV IR WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=690.0000, expected range: 0.0000 528.0989
HIMAWARI-8 AMV IR1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: obs_number=2570.0000, expected range: 3205.2940 5679.7060
NOAA20 VIIRS-AMV IR WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=739.0000, expected range: 0.0000 521.0548
GOES-17 AMV CLOUDY WV3 WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HP : out of range
Considerable: stdev_press=24.0898, expected range: 26.0092 29.2729
Radiosondes
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 26 : all data missing
Severely_persistent: obs_number=0, expected range: 84.25 133.75
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 84 : all data missing
Severely_persistent: obs_number=0, expected range: 16.61 210.59
LAND TEMP WIND VECTOR DIFF (M/S) (2 pressure layers affected) : out of range
Severe: rms_fgdepar=9.8554, expected range: 2.1262 5.2792
LAND TEMP WIND VECTOR DIFF (M/S) 44373 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.2216, expected range: 0.1955 7.5691
LAND TEMP WIND VECTOR DIFF (M/S) 29839 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.4499, expected range: 0.9875 5.0468
LAND TEMP WIND VECTOR DIFF (M/S) 89532 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=15.2581, expected range: 0.0000 7.4933
LAND TEMP TEMPERATURE (K) 29839 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.8030, expected range: 0.1198 2.5789
LAND TEMP TEMPERATURE (K) 72469 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_fgdepar=-13.1673, expected range: -2.9123 3.2712
Severe: rms_fgdepar=13.1673, expected range: 0.0000 2.8266
Severe: avg_pge=0.9470, expected range: -0.2362 0.6545
LAND TEMP TEMPERATURE (K) 31770 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=10.0711, expected range: -9.5146 14.0413
LAND TEMP TEMPERATURE (K) 37259 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.1275, expected range: 0.0000 5.2616
LAND TEMP Q (G/KG) 34858 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.7207, expected range: 0.1833 1.5349
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 600-900 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=4.5034, expected range: 0.2868 1.3420
HIGH RESO LAND TEMP Q (G/KG) 72451 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.9291, expected range: 0.0000 1.7156
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 0-300 (HPA) : missing
Severe: obs_number=0.0000, expected range: 63.0180 68.1820
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 83 : all data missing
Severe: obs_number=0, expected range: 33.28 362.03
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) XIZX1KBA PRESSURE LAYER 300-600 (HP : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8557, expected range: -1.6998 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) EHDRETBA PRESSURE LAYER 600-900 (HP : out of range
Severe: avg_fgdepar=25.2960, expected range: -6.8064 11.6996
Severe: rms_fgdepar=25.2960, expected range: 0.0000 11.5416
Severe: avg_pge=0.8933, expected range: -1.3136 0.7500
WIGOS AMDAR Q (G/KG) 3OXWUWJA PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-7.3381, expected range: -9.0726 4.3767
Severe: rms_fgdepar=7.3399, expected range: 0.0000 8.3587
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 48551 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=20.7862, expected range: 0.0000 30.5175
LAND PILOT WIND VECTOR DIFF (M/S) 44373 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.6889, expected range: 0.0000 8.2633
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 85432 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8439, expected range: -1.0913 0.7500
MANUAL LAND SYNOP RH2M (%) 66285 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=53.0269, expected range: 21.5099 72.0404
Severely_persistent: rms_fgdepar=53.0269, expected range: 21.9853 71.6525
Severely_persistent: avg_pge=1.0000, expected range: 0.3797 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 81982 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-913.9065, expected range: -1333.7037 1030.6851
Severely_persistent: rms_fgdepar=914.1391, expected range: -1131.4588 1474.7128
Severely_persistent: avg_pge=0.9573, expected range: -0.6698 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 47690 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=33.6253, expected range: 0.0000 19.1309
MANUAL LAND SYNOP RH2M (%) 64650 : out of range
Severe: rms_fgdepar=41.9543, expected range: 0.0000 33.3216
Severe: avg_pge=0.9867, expected range: -0.0456 0.0597
MANUAL LAND SYNOP RH2M (%) 42674 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9986, expected range: -1.2238 0.7500
MANUAL LAND SYNOP RH2M (%) 41685 : out of range
Severe: rms_fgdepar=45.3280, expected range: 0.0000 9.1949
MANUAL LAND SYNOP RH2M (%) 40616 : out of range
Severe: avg_pge=0.9405, expected range: -0.6064 0.7500
MANUAL LAND SYNOP RH2M (%) 42176 : out of range
Severe: rms_fgdepar=45.6156, expected range: 10.3532 24.6936
MANUAL LAND SYNOP RH2M (%) 41929 : out of range
Severe: rms_fgdepar=31.8264, expected range: 0.0000 17.3644
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40605 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=375.0628, expected range: 42.4147 190.4227
Severe: avg_pge=0.8451, expected range: -0.4347 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83589 : out of range
Severe: avg_pge=0.8054, expected range: 0.0152 0.7500
BUFR LAND SYNOP Z (M) 08103 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8407, expected range: -0.4849 0.7500
BUFR LAND SYNOP RH2M (%) 34704 : out of range
Severe: rms_fgdepar=32.8776, expected range: 0.0000 15.9033
BUFR LAND SYNOP RH2M (%) 06747 : out of range
Severe: avg_fgdepar=-51.7810, expected range: -30.8963 6.6371
Severe: rms_fgdepar=52.3716, expected range: 5.4205 25.9830
BUFR LAND SYNOP SURFACE PRESSURE (PA) 25400 : out of range
Severe: rms_fgdepar=469.1870, expected range: 0.0000 148.3338
BUFR LAND SYNOP SURFACE PRESSURE (PA) 04861 : out of range
Severe: avg_pge=0.8109, expected range: 0.3132 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24194 : out of range
Severe: rms_fgdepar=339.4104, expected range: 0.0000 110.0849
BUFR LAND SYNOP SURFACE PRESSURE (PA) 29456 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8420, expected range: -1.1902 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 23589 : out of range
Severe: avg_fgdepar=-606.5347, expected range: -398.5304 223.4279
Severe: rms_fgdepar=795.6750, expected range: 0.0000 371.6261
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OYIK2 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=579.3745, expected range: -87.3663 1239.2709
Severely_persistent: rms_fgdepar=580.4574, expected range: 36.0638 1132.8083
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRDJ3 : out of range
21 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-508.5226, expected range: -712.1365 -330.1467
Severely_persistent: rms_fgdepar=509.5967, expected range: 328.8256 715.4760
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRQK3 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-623.8424, expected range: -739.5701 -430.1332
Severely_persistent: rms_fgdepar=625.3503, expected range: 399.9984 781.3385
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6DF6 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=559.6263, expected range: -815.6501 1438.4457
Severely_persistent: rms_fgdepar=559.6296, expected range: 0.0000 1497.1101
Severely_persistent: avg_pge=0.8228, expected range: -1.4653 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRRL7 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-513.0140, expected range: -683.2481 -271.2453
Severely_persistent: rms_fgdepar=513.0140, expected range: 271.2453 683.2481
BUFR SHIP SYNOP SURFACE PRESSURE (PA) J8QX8 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=735.9721, expected range: -1193.7777 1801.3345
Severely_persistent: rms_fgdepar=735.9721, expected range: 0.0000 1784.2712
Severely_persistent: avg_pge=0.8533, expected range: -1.5397 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) CFL24 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=32.3398, expected range: -4.9478 22.0799
Severely_persistent: rms_fgdepar=32.5799, expected range: 0.0000 25.6293
Severely_persistent: avg_pge=0.9478, expected range: -0.2269 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9VBP8 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8610, expected range: -0.5714 0.7500
SHIP SURFACE PRESSURE (PA) A8JR6 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-537.1148, expected range: -823.4890 -237.4335
Severe: rms_fgdepar=537.1148, expected range: 237.4335 823.4890
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRTD6 : out of range
Severe: avg_fgdepar=-571.5025, expected range: -783.0261 -392.6499
Severe: rms_fgdepar=572.5303, expected range: 392.8699 785.8111
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRQO7 : out of range
Severe: avg_pge=0.8078, expected range: 0.5195 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) UAEV : out of range
Severe: avg_fgdepar=-964.6545, expected range: 29.2101 642.0130
Severe: rms_fgdepar=964.6545, expected range: 29.2101 642.0130
Severe: avg_pge=0.9065, expected range: 0.2582 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) UCQX : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=1054.0374, expected range: -699.3724 2351.8926
Severe: rms_fgdepar=1055.5739, expected range: 0.0000 2352.1754
Severe: avg_pge=0.9024, expected range: 0.5389 0.7500
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 0053041 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8517, expected range: -0.5041 0.7500
MOORED BUOYS WIND VECTOR DIFF (M/S) 6100198 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8815, expected range: -0.8976 0.7500
MOORED BUOYS WIND VECTOR DIFF (M/S) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=66.0000, expected range: 71.9495 80.9978
metar
METAR SURFACE PRESSURE (PA) OPPG : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=509.0987, expected range: -509.1508 639.5655
Severely_persistent: rms_fgdepar=511.2373, expected range: 0.0000 525.8946
METAR SURFACE PRESSURE (PA) GMML : out of range
Severe: rms_fgdepar=365.5612, expected range: 6.0795 77.5607
snow
AUTOMATIC LAND SYNOP SNOW (CM) 71356 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-57.1180, expected range: -61.2898 -51.5703
Severely_persistent: rms_fgdepar=57.1180, expected range: 51.5703 61.2898
BUFR LAND SYNOP SNOW (CM) 01361 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=108.6460, expected range: 96.7378 111.3970
Severely_persistent: rms_fgdepar=108.6512, expected range: 96.7404 111.3987
BUFR LAND SYNOP SNOW (CM) 01132 : out of range
36 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=70.5000, expected range: 70.8050 75.4047
Severely_persistent: rms_fgdepar=70.5018, expected range: 70.8067 75.4053
BUFR LAND SYNOP SNOW (CM) 01435 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=107.5238, expected range: 97.2007 117.4939
Severely_persistent: rms_fgdepar=107.5279, expected range: 97.2088 117.4925
BUFR LAND SYNOP SNOW (CM) 01008 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-53.6626, expected range: -130.5879 -56.5872
Severely_persistent: rms_fgdepar=53.6682, expected range: 56.5905 130.5861
t2m
BUFR LAND SYNOP 2M TEMPERATURE (K) 27415 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-14.0894, expected range: -16.2648 0.7665
Severely_persistent: rms_fgdepar=14.0965, expected range: 0.0000 16.9218
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 66390 : out of range
Severe: rms_fgdepar=11.3321, expected range: 0.0000 2.5913
Severe: avg_est_pge=0.8158, expected range: -0.1063 0.1398
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89504 : out of range
2 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8065, expected range: 0.4124 1.0100
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 66325 : out of range
Severe: avg_fgdepar=-19.6973, expected range: -1.6738 0.9291
Severe: rms_fgdepar=19.6973, expected range: 0.0000 1.9773
Severe: avg_est_pge=0.8890, expected range: -0.0374 0.0462
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89504 : out of range
2 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8129, expected range: 0.3869 1.0109
MANUAL LAND SYNOP 2M TEMPERATURE (K) 37409 : out of range
Severe: rms_fgdepar=10.5954, expected range: 0.9936 4.4715
METAR 2M TEMPERATURE (K) OPBN : out of range
Severe: rms_fgdepar=10.0508, expected range: 0.0000 4.8722
LAND TEMP 2M TEMPERATURE (K) 65578 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-12.4162, expected range: -10.6849 11.2797
Severe: rms_fgdepar=12.4162, expected range: -6.1386 11.0735
BUFR LAND SYNOP 2M TEMPERATURE (K) 89504 : out of range
2 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8085, expected range: 0.4104 1.0066