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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2021-11-22 00:00

amsua
NOAA 18 AMSUA ALL SKY RADIANCES CHANNEL 13 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: stdev_norm_fgdepar=0.6420, expected range: 0.5452 0.5997
NOAA 18 AMSUA ALL SKY RADIANCES CHANNEL 14 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: stdev_norm_fgdepar=0.6652, expected range: 0.5027 0.5821
METOP-C AMSUA ALL SKY RADIANCES CHANNEL 14 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: stdev_norm_fgdepar=0.6187, expected range: 0.4731 0.5438
METOP-B AMSUA ALL SKY RADIANCES CHANNEL 13 : out of range
Considerable: stdev_norm_fgdepar=0.6380, expected range: 0.4989 0.5864
METOP-B AMSUA ALL SKY RADIANCES CHANNEL 7 : out of range
Considerable: obs_number=542.0000, expected range: 774.5225 1487.1829
airs
AQUA AIRS RADIANCES CHANNEL 587 : out of range
2 times in the last 10 days for at least one item
Considerable: avg_biascorr=-0.0725, expected range: -0.0663 -0.0563
AQUA AIRS RADIANCES CHANNEL 1897 : out of range
Slight: stdev_fgdepar=0.1950, expected range: 0.1685 0.1890
amsr2
AMSR2 GCOM-W1 ALLSKY RADIANCES (6 channels affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=3181.0000, expected range: 3403.0077 4212.3673
atms
NPP ATMS RADIANCES CHANNEL 13 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.3228, expected range: -0.2886 -0.2490
Severely_persistent: avg_biascorr=-0.0307, expected range: -0.2683 -0.2593
NPP ATMS RADIANCES CHANNEL 14 : out of range
28 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1295, expected range: -0.0825 -0.0544
Severely_persistent: avg_biascorr=0.0495, expected range: -0.1546 -0.0734
Severely_persistent: stdev_fgdepar=0.5016, expected range: 0.3858 0.4489
NPP ATMS RADIANCES CHANNEL 12 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1047, expected range: -0.3336 -0.2905
NPP ATMS RADIANCES CHANNEL 15 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=0.8962, expected range: 0.6289 0.7315
Severely_persistent: stdev_fgdepar=0.8275, expected range: 0.5847 0.7198
NOAA20 ATMS RADIANCES CHANNEL 14 : out of range
30 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=0.4704, expected range: 0.3504 0.3991
Severely_persistent: stdev_fgdepar=0.4449, expected range: 0.3158 0.3819
NOAA20 ATMS RADIANCES CHANNEL 15 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=0.8741, expected range: 0.5700 0.6636
Severely_persistent: stdev_fgdepar=0.8173, expected range: 0.5058 0.6480
NOAA20 ATMS RADIANCES CHANNEL 13 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.4804, expected range: -0.4481 -0.4175
NOAA20 ATMS RADIANCES (5 channels affected) : out of range
2 times in the last 10 days for at least one item
Severe: avg_biascorr=-0.1481, expected range: -0.3989 -0.3590
NPP ATMS RADIANCES (7 channels affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=3581.0000, expected range: 2966.7012 3450.2988
ssmis
DMSP-17 SSMIS RADIANCES CHANNEL 5 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: stdev_norm_fgdepar=0.0043, expected range: 0.0034 0.0037
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1010-1011 (HPA) : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-4.2369, expected range: -6.0119 -5.0939
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 100-101 (HPA) : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-0.0184, expected range: 0.0128 0.0226
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1-2 (HPA) : out of range
14 times in the last 10 days for at least one item
Slight: stdev_fgdepar=0.0267, expected range: 0.0113 0.0113
Radiosondes
HIGH RESO LAND TEMP TEMPERATURE (K) 51463 PRESSURE LAYER 900-1200 (HPA : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8362, expected range: -0.7919 0.7500
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 30 : all data missing
Severely_persistent: obs_number=0, expected range: 29.29 262.88
LAND TEMP WIND VECTOR DIFF (M/S) 33393 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.0707, expected range: 0.5331 4.6059
LAND TEMP WIND VECTOR DIFF (M/S) 38341 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=25.8227, expected range: 0.0000 7.4030
LAND TEMP WIND VECTOR DIFF (M/S) 23078 (2 pressure layers affected) : out of range
Severe: avg_pge=0.8051, expected range: -0.9806 0.7500
LAND TEMP TEMPERATURE (K) 30758 PRESSURE LAYER 900-1200 (HPA) : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-9.4579, expected range: -15.2955 11.0244
Severe: rms_fgdepar=9.4579, expected range: 0.0000 11.6331
Severe: avg_pge=0.9101, expected range: -0.9184 0.7500
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 53614 PRESSURE LAYER 0-300 : out of range
Severe: avg_fgdepar=21.9861, expected range: 0.4997 5.0513
Severe: avg_pge=0.8151, expected range: -0.1075 0.1567
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 53614 (2 pressure layers af : out of range
Severe: rms_fgdepar=23.3969, expected range: 0.5606 5.6021
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 58362 PRESSURE LAYER 300-60 : out of range
Severe: avg_fgdepar=20.9642, expected range: -2.7652 10.8084
Severe: rms_fgdepar=24.3486, expected range: 0.0000 12.1477
Severe: avg_pge=0.8087, expected range: -0.3561 0.4886
HIGH RESO LAND TEMP Q (G/KG) 45004 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.6459, expected range: 0.0000 1.7796
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 20 : all data missing
Severe: obs_number=0, expected range: 83.63 154.59
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HP : out of range
Considerable: rms_fgdepar=10.9554, expected range: 1.6535 7.4083
amdar
AMDAR WIND VECTOR DIFF (M/S) 00040422 PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=24.8720, expected range: -9.6479 19.8815
Severe: rms_fgdepar=35.4934, expected range: 0.0000 41.9913
WIGOS AMDAR TEMPERATURE (K) EU0896 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=7.1200, expected range: 0.0000 3.2747
Severe: avg_pge=0.9164, expected range: -0.3844 0.6173
ADS-C WIND VECTOR DIFF (M/S) CKFZ45BA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=23.2583, expected range: -2.0947 10.5672
Severe: rms_fgdepar=35.3975, expected range: 0.0000 11.3110
ADS-C WIND VECTOR DIFF (M/S) E3JGN1JA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.8793, expected range: 0.0000 10.4812
ADS-C WIND VECTOR DIFF (M/S) YUEIMERA PRESSURE LAYER 0-300 (HPA) : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=22.1114, expected range: 0.0000 33.9413
ADS-C WIND VECTOR DIFF (M/S) 44C0KKRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=26.0823, expected range: 0.0000 15.4336
ADS-C WIND VECTOR DIFF (M/S) 3XPFSLRA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=25.8772, expected range: 0.0000 36.3954
ADS-C WIND VECTOR DIFF (M/S) W3DK3ORA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=30.7105, expected range: 0.0000 9.4947
ADS-C WIND VECTOR DIFF (M/S) OQGDSDZA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=21.6630, expected range: 0.0000 33.0440
ADS-C WIND VECTOR DIFF (M/S) PR1TTVZA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=18.0940, expected range: 0.0000 9.9070
AMDAR WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: obs_number=744.0000, expected range: 69.9896 493.0104
Considerable: obs_number=1301.0000, expected range: 177.0855 902.6645
airep
AIREP WIND VECTOR DIFF (M/S) ETD130 PRESSURE LAYER 0-300 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=22.0131, expected range: -16.8306 30.5034
Severe: rms_fgdepar=36.5379, expected range: 0.0000 66.0281
AIREP WIND VECTOR DIFF (M/S) UAL84 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=25.2718, expected range: 0.0000 11.6991
AIREP WIND VECTOR DIFF (M/S) UAL907 PRESSURE LAYER 0-300 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=24.3840, expected range: 0.0000 76.3806
AIREP WIND VECTOR DIFF (M/S) UAL829 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=25.6984, expected range: -3.6761 12.3087
Severe: rms_fgdepar=37.6609, expected range: 0.0000 24.5818
AIREP WIND VECTOR DIFF (M/S) THY43D PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=20.6120, expected range: 0.0000 12.2114
AIREP WIND VECTOR DIFF (M/S) BAW48Q PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=20.9210, expected range: 0.0000 11.4821
AIREP WIND VECTOR DIFF (M/S) LOT2LY PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=20.9782, expected range: 0.0000 13.5596
prof
JAPANESE WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : out of range
Considerable: obs_number=4601.0000, expected range: 0.0000 2506.5685
Considerable: obs_number=4601.0000, expected range: 0.0000 2506.5685
synop
MANUAL LAND SYNOP RH2M (%) 76040 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9982, expected range: -1.2672 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 35777 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8018, expected range: -0.9374 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 31561 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=916.6589, expected range: -448.8628 443.8672
Severely_persistent: rms_fgdepar=917.5196, expected range: 0.0000 368.5354
Severely_persistent: avg_pge=0.9367, expected range: -1.0277 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) _MI11B1A : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8154, expected range: 0.4148 0.7500
MANUAL LAND SYNOP RH2M (%) 67323 : out of range
Severe: rms_fgdepar=32.5607, expected range: 0.0000 13.4930
MANUAL LAND SYNOP RH2M (%) 38933 : out of range
Severe: avg_fgdepar=50.6019, expected range: -47.1602 55.9781
Severe: rms_fgdepar=50.7222, expected range: 0.0000 33.9884
MANUAL LAND SYNOP RH2M (%) 94463 : out of range
Severe: avg_pge=0.9969, expected range: -0.1855 0.2791
MANUAL LAND SYNOP RH2M (%) 87509 : out of range
Severe: rms_fgdepar=36.2176, expected range: 0.0000 19.4432
BUFR LAND SYNOP RH2M (%) 06141 : out of range
Severe: rms_fgdepar=31.1572, expected range: 0.0000 16.9755
BUFR LAND SYNOP RH2M (%) 94463 : out of range
Severe: avg_pge=0.9994, expected range: -0.4322 0.6022
BUFR LAND SYNOP RH2M (%) 26515 : out of range
Severe: rms_fgdepar=41.4492, expected range: 0.0000 8.9960
BUFR LAND SYNOP RH2M (%) 41055 : out of range
Severe: avg_pge=0.8581, expected range: -0.7493 0.7500
BUFR LAND SYNOP RH2M (%) 57687 : out of range
Severe: rms_fgdepar=34.1973, expected range: 0.0000 16.1068
BUFR LAND SYNOP SURFACE PRESSURE (PA) 22621 : out of range
Severe: rms_fgdepar=302.7497, expected range: 0.0000 109.1838
BUFR LAND SYNOP SURFACE PRESSURE (PA) 31004 : out of range
Severe: rms_fgdepar=528.7656, expected range: 0.0000 112.5024
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71506 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9026, expected range: -0.8029 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 29956 : out of range
Severe: rms_fgdepar=458.1068, expected range: 0.0000 217.5436
BUFR LAND SYNOP SURFACE PRESSURE (PA) 50888 : out of range
Severe: rms_fgdepar=383.9787, expected range: 0.0000 100.7708
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71479 : out of range
Severe: avg_pge=0.8413, expected range: -0.8923 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
Severe: rms_fgdepar=172.7699, expected range: 41.3177 85.2056
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) C6CQ3 : out of range
Severe: avg_fgdepar=21.2376, expected range: -3.1693 10.3797
Severe: rms_fgdepar=21.4685, expected range: 0.0000 11.0758
Severe: avg_pge=0.9106, expected range: -0.7030 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V3000 : out of range
Severe: rms_fgdepar=412.6205, expected range: 0.0000 128.5112
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V9143 : out of range
Severe: avg_fgdepar=-540.9771, expected range: -596.4061 582.9133
Severe: rms_fgdepar=540.9771, expected range: 0.0000 431.6589
Severe: avg_pge=0.8289, expected range: -1.0205 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRPT4 : out of range
Severe: avg_fgdepar=-1078.8436, expected range: -783.6337 1016.1547
Severe: rms_fgdepar=1078.8436, expected range: 0.0000 732.5056
Severe: avg_pge=0.9204, expected range: -1.2250 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V3736 : out of range
Severe: rms_fgdepar=549.6833, expected range: 0.0000 586.6704
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7ZZ6 : out of range
Severe: avg_fgdepar=546.8173, expected range: -188.5325 658.7165
Severe: rms_fgdepar=546.8173, expected range: 0.0000 728.0392
Severe: avg_pge=0.8073, expected range: -0.5769 0.7500
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 6100196 : out of range
Severe: rms_fgdepar=17.8464, expected range: 0.0000 8.7858
Severe: avg_pge=0.9255, expected range: -0.9404 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 3301523 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8964, expected range: -1.4433 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5401765 : out of range
Severe: avg_fgdepar=-598.7885, expected range: -115.9217 143.7373
Severe: rms_fgdepar=609.7266, expected range: 0.0000 116.7694
Severe: avg_pge=0.9134, expected range: -0.0766 0.0978
metar
METAR SURFACE PRESSURE (PA) SBBH : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=337.6910, expected range: 0.0000 103.6990
snow
MANUAL LAND SYNOP SNOW (CM) 30815 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=67.4996, expected range: 27.2009 90.4248
Severely_persistent: rms_fgdepar=67.4996, expected range: 27.2009 90.4248
MANUAL LAND SYNOP SNOW (CM) 11138 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-62.9828, expected range: -72.6403 -62.5479
Severely_persistent: rms_fgdepar=62.9828, expected range: 62.5479 72.6403
BUFR LAND SYNOP SNOW (CM) 30815 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=67.5296, expected range: 27.0803 90.5111
Severely_persistent: rms_fgdepar=67.5296, expected range: 27.0803 90.5111
BUFR LAND SYNOP SNOW (CM) _MI1BD27 : out of range
26 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-54.8101, expected range: -88.5962 -19.1373
BUFR LAND SYNOP SNOW (CM) _MI1BD27 : out of range
26 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=54.8361, expected range: 19.1712 88.6571
BUFR LAND SYNOP SNOW (CM) 47016 : out of range
Severe: avg_fgdepar=99.4741, expected range: -97.9810 125.8168
Severe: rms_fgdepar=99.4741, expected range: -97.2576 125.7162
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89578 : out of range
23 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-12.8074, expected range: -20.4204 -3.2769
Severely_persistent: rms_fgdepar=12.9370, expected range: 3.6159 20.4454
MANUAL LAND SYNOP 2M TEMPERATURE (K) 36796 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-15.6918, expected range: -16.5215 9.8001
Severely_persistent: rms_fgdepar=15.7707, expected range: 0.0000 16.0106
BUFR LAND SYNOP 2M TEMPERATURE (K) 04112 : out of range
31 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.1345, expected range: -18.8079 -10.8400
Severely_persistent: rms_fgdepar=13.2433, expected range: 11.0810 18.8543
BUFR LAND SYNOP 2M TEMPERATURE (K) 36796 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-15.7418, expected range: -16.5715 9.7501
Severely_persistent: rms_fgdepar=15.8205, expected range: 0.0000 16.1112
BUFR LAND SYNOP 2M TEMPERATURE (K) 89578 : out of range
24 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-12.7928, expected range: -20.5396 -3.2846
Severely_persistent: rms_fgdepar=12.9166, expected range: 3.6232 20.5629
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71693 : out of range
Severe: rms_fgdepar=11.3675, expected range: 0.0000 4.5824
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71369 : out of range
Severe: rms_fgdepar=11.5632, expected range: 0.0000 4.4291
MANUAL LAND SYNOP 2M TEMPERATURE (K) 36439 : out of range
Severe: rms_fgdepar=11.7605, expected range: 0.0000 6.3981
METAR 2M TEMPERATURE (K) UHHH : out of range
Severe: rms_fgdepar=10.1260, expected range: 0.1716 4.5810
METAR 2M TEMPERATURE (K) LGKL : out of range
Severe: rms_fgdepar=12.0629, expected range: 0.0000 12.7014
LAND TEMP 2M TEMPERATURE (K) 30557 : out of range
Severe: avg_fgdepar=-13.3902, expected range: -15.2117 6.4766
Severe: rms_fgdepar=13.3902, expected range: 0.0000 12.6811
rh2m
MANUAL LAND SYNOP RH2M (%) 26515 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=31.6496, expected range: 0.0000 16.1523
BUFR LAND SYNOP RH2M (%) _MI192B5 : out of range
Severe: rms_fgdepar=38.9001, expected range: 0.0000 16.0747