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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2020-05-30 12:00

amsua
AQUA AMSUA RADIANCES (7 channels affected) : out of range
Considerable: obs_number=2565.0000, expected range: 2849.9919 3977.1846
mwhs2
FY-3C MWHS2 ALLSKY RADIANCES CHANNEL 11 : out of range
Considerable: obs_number=285.0000, expected range: 1020.8275 3495.9029
mwhs
FY-3B MWHS RADIANCES CHANNEL 3 : out of range
Considerable: obs_number=5908.0000, expected range: 6451.6318 7478.3682
FY-3B MWHS RADIANCES CHANNEL 4 : out of range
Considerable: obs_number=5910.0000, expected range: 6461.5004 7478.4996
atms
NPP ATMS RADIANCES CHANNEL 6 : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=5384.0000, expected range: 6325.8393 7860.0430
NPP ATMS RADIANCES CHANNEL 7 : out of range
Considerable: obs_number=5550.0000, expected range: 6502.8022 8034.3743
NPP ATMS RADIANCES CHANNEL 8 : out of range
Considerable: obs_number=6042.0000, expected range: 6842.1285 8270.3421
NOAA20 ATMS RADIANCES CHANNEL 6 : out of range
Considerable: obs_number=5480.0000, expected range: 6370.0647 7925.4647
NOAA20 ATMS RADIANCES CHANNEL 7 : out of range
Considerable: obs_number=5637.0000, expected range: 6529.6665 8112.9217
NOAA20 ATMS RADIANCES CHANNEL 8 : out of range
Considerable: obs_number=6124.0000, expected range: 6808.9881 8352.5413
gpsro
All FY-3C GNOS RISING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 467.59 2312.99
All COSMIC2-E3 GPSRO RISING ALL HEIGHTS Global : all data missing
Severe: obs_number=0, expected range: 892.68 2273.67
All COSMIC2-E5 GPSRO RISING ALL HEIGHTS Global : all data missing
Severe: obs_number=0, expected range: 648.69 3372.22
All COSMIC2-E6 GPSRO RISING ALL HEIGHTS Global : all data missing
Severe: obs_number=0, expected range: 712.14 3198.19
METOP-A GRAS SETTING HEIGHT 1 : out of range
Considerable: obs_number=1516.0000, expected range: 1677.0485 2013.8927
TERRASAR-X GPSRO SETTING (9 impact heights affected) : out of range
Considerable: obs_number=207.0000, expected range: 462.7367 1324.1250
Atmospheric Motion Vector
METEOSAT-11 AMV IR3 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: stdev_fgdepar=4.3316, expected range: 2.5737 3.7022
GOES-17 AMV IR1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HPA) : out of range
Considerable: obs_number=616.0000, expected range: 35.5019 495.6851
METEOSAT-8 AMV CLOUDY WV2 WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-60 : out of range
Slight: avg_press=435.0387, expected range: 392.7860 413.2055
Radiosondes
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) 31510 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=16.2340, expected range: 0.0000 7.6687
Severe: avg_pge=0.8264, expected range: -0.7057 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 71811 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=17.1545, expected range: 1.6566 4.1113
LAND TEMP Q (G/KG) 72403 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=3.5830, expected range: 0.0000 1.3502
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : missing
Severe: obs_number=0.0000, expected range: 23.5899 411.7310
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 57993 PRESSURE LAYER 0-300 : out of range
Severe: avg_fgdepar=20.1243, expected range: 0.2630 4.5626
Severe: rms_fgdepar=20.3800, expected range: 0.5567 4.9441
Severe: avg_pge=0.8442, expected range: -0.0986 0.1227
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 56137 PRESSURE LAYER 0-300 : out of range
Severe: rms_fgdepar=16.7763, expected range: 0.3218 8.1895
HIGH RESO LAND TEMP TEMPERATURE (K) (3 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=952.0000, expected range: 1101.5425 1154.4575
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
Considerable: obs_number=447.0000, expected range: 366.8096 388.1904
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=92.0000, expected range: 158.9713 200.0287
amdar
All AMDAR WIND VECTOR DIFF (M/S) ALL LAYERS North West Pacific : all data missing
Severe: obs_number=0, expected range: 7.51 330.12
WIGOS AMDAR WIND VECTOR DIFF (M/S) VJ3H1DBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=18.4901, expected range: 0.0000 5.8885
WIGOS AMDAR TEMPERATURE (K) PBUITJRA PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_fgdepar=-9.0865, expected range: -4.7231 3.9366
Severe: rms_fgdepar=9.0865, expected range: 0.0000 3.1075
Severe: avg_pge=0.8768, expected range: -0.6896 0.7500
WIGOS AMDAR Q (G/KG) POWGU1ZA PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_fgdepar=6.5993, expected range: -11.9059 13.0891
Severe: rms_fgdepar=6.6190, expected range: 1.3414 5.3788
airep
AIREP WIND VECTOR DIFF (M/S) BAW192 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=20.0601, expected range: -6.7622 13.7101
Severe: rms_fgdepar=20.0601, expected range: 0.0000 18.7110
Severe: avg_pge=0.8170, expected range: -0.5956 0.7500
AIREP WIND VECTOR DIFF (M/S) UAL988 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=20.5269, expected range: 0.0000 29.4288
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 48378 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=22.6704, expected range: 1.4677 9.8205
LAND PILOT WIND VECTOR DIFF (M/S) 43063 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=21.8076, expected range: 0.0000 7.2224
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=0.8306, expected range: -1.4301 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 81982 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-897.1901, expected range: -454.9867 253.2534
Severely_persistent: rms_fgdepar=898.5849, expected range: 0.0000 752.8362
Severely_persistent: avg_pge=0.9575, expected range: -0.6376 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43310 : out of range
Severe: avg_pge=0.8137, expected range: -1.2734 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42483 : out of range
Severe: avg_pge=0.8033, expected range: -1.0902 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 82976 : out of range
Severe: avg_fgdepar=782.3284, expected range: -128.0237 313.5662
Severe: rms_fgdepar=783.2936, expected range: 0.0000 421.8656
Severe: avg_pge=0.9188, expected range: -0.7409 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83379 : out of range
Severe: avg_pge=0.8045, expected range: -1.3468 0.7500
MANUAL LAND SYNOP RH2M (%) 76040 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9163, expected range: -1.1589 0.7500
MANUAL LAND SYNOP RH2M (%) 82143 : out of range
Severe: rms_fgdepar=48.5699, expected range: 0.0000 11.4448
Severe: avg_pge=0.9998, expected range: 0.0003 0.0064
MANUAL LAND SYNOP RH2M (%) 40616 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8060, expected range: -0.9034 0.7500
MANUAL LAND SYNOP RH2M (%) 42348 : out of range
Severe: rms_fgdepar=36.9641, expected range: 0.0000 4.7356
MANUAL LAND SYNOP RH2M (%) 41598 : out of range
Severe: rms_fgdepar=30.2590, expected range: 0.0000 17.0103
MANUAL LAND SYNOP RH2M (%) 36859 : out of range
Severe: avg_pge=0.9786, expected range: -1.2455 0.7500
MANUAL LAND SYNOP RH2M (%) 42099 : out of range
Severe: rms_fgdepar=35.3071, expected range: 0.0000 14.9215
BUFR LAND SYNOP SURFACE PRESSURE (PA) 27745 : out of range
Severe: rms_fgdepar=337.1718, expected range: 0.0000 99.9930
BUFR LAND SYNOP RH2M (%) 53231 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=38.4607, expected range: 0.0000 9.0286
BUFR LAND SYNOP RH2M (%) 70361 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=34.0314, expected range: 0.0000 13.7005
BUFR LAND SYNOP RH2M (%) 72506 : out of range
Severe: rms_fgdepar=48.4607, expected range: 0.0000 28.8867
Severe: avg_pge=0.9479, expected range: -0.0099 0.0193
BUFR LAND SYNOP RH2M (%) 48019 : out of range
Severe: avg_pge=0.9469, expected range: -0.5614 0.7035
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) CFL24 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=22.9241, expected range: -24.5707 45.9207
Severely_persistent: rms_fgdepar=26.1203, expected range: 0.0000 46.7034
Severely_persistent: avg_pge=0.8186, expected range: -0.2886 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9V2734 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9074, expected range: 0.1378 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) PCHF : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=32.7681, expected range: -10.4971 26.4691
Severely_persistent: rms_fgdepar=32.7681, expected range: 0.0000 26.3267
Severely_persistent: avg_pge=0.9494, expected range: -0.1568 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OYIK2 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=613.6072, expected range: -104.9701 1253.0817
Severely_persistent: rms_fgdepar=613.9939, expected range: 13.7452 1151.5619
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRQK3 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-590.1436, expected range: -764.4974 -403.2439
Severely_persistent: rms_fgdepar=595.3989, expected range: 387.1603 793.7050
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V9404 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=508.0893, expected range: -963.8745 1599.0041
Severely_persistent: rms_fgdepar=508.0893, expected range: 0.0000 1935.9401
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6DF6 : out of range
21 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=606.3606, expected range: -857.3109 1499.4898
Severely_persistent: rms_fgdepar=606.5022, expected range: 0.0000 1555.3235
Severely_persistent: avg_pge=0.8281, expected range: -1.4761 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) UCQX : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=964.2188, expected range: -242.2079 1910.3645
Severely_persistent: rms_fgdepar=964.4875, expected range: 0.0000 1907.2394
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VRRD2 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8988, expected range: -0.6764 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7IG7 : out of range
Severe: avg_fgdepar=706.1177, expected range: -413.6274 933.0537
Severe: rms_fgdepar=706.1177, expected range: 0.0000 824.3657
Severe: avg_pge=0.8586, expected range: -0.6365 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) H3VS : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-516.1996, expected range: -632.7485 -46.4475
Severe: rms_fgdepar=561.7128, expected range: 52.2879 660.0729
Severe: avg_pge=0.8020, expected range: 0.3795 0.7500
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 6100198 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8822, expected range: -0.6466 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1601700 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=500.0696, expected range: 0.0000 1125.2993
DRIFTING BUOYS SURFACE PRESSURE (PA) 6203641 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=464.7645, expected range: 0.0000 132.5034
Severe: avg_pge=0.8617, expected range: -0.8167 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6301676 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-616.9855, expected range: -156.5064 209.6730
Severe: rms_fgdepar=622.8378, expected range: 0.0000 204.8052
Severe: avg_pge=0.9053, expected range: -0.3054 0.4702
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=-56.6792, expected range: -60.1547 -53.4840
Severely_persistent: rms_fgdepar=56.6792, expected range: 53.4840 60.1547
BUFR LAND SYNOP SNOW (CM) 01361 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=106.4304, expected range: 96.4173 113.4089
Severely_persistent: rms_fgdepar=106.4304, expected range: 96.4211 113.4086
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=65.0000, expected range: 69.1192 76.3812
Severely_persistent: rms_fgdepar=65.0077, expected range: 69.1298 76.3754
BUFR LAND SYNOP SNOW (CM) 01435 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=106.1479, expected range: 98.2172 116.7163
Severely_persistent: rms_fgdepar=106.1479, expected range: 98.2246 116.7148
t2m
BUFR LAND SYNOP 2M TEMPERATURE (K) 27415 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-15.4545, expected range: -19.0921 1.9813
Severely_persistent: rms_fgdepar=15.5396, expected range: 0.0000 19.5888
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-12.1453, expected range: -12.1099 -4.1760
Severe: rms_fgdepar=12.2427, expected range: 4.2082 12.1338
Severe: avg_est_pge=0.8502, expected range: 0.6580 0.8839
METAR 2M TEMPERATURE (K) MDSD : out of range
Severe: rms_fgdepar=10.3466, expected range: 0.5426 3.7465
METAR 2M TEMPERATURE (K) KAFF : out of range
Severe: rms_fgdepar=12.9168, expected range: 0.0000 7.6639
BUFR LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
4 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8467, expected range: 0.6641 0.8741
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 12185 : out of range
Severe: rms_fgdepar=36.1487, expected range: 0.0000 19.0511
AUTOMATIC LAND SYNOP RH2M (%) 89059 : out of range
Severe: rms_fgdepar=31.4109, expected range: 0.0000 17.8900
MANUAL LAND SYNOP RH2M (%) 42803 : out of range
Severe: rms_fgdepar=34.8132, expected range: 0.0000 18.8563