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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2021-10-08 00:00

cris
NOAA20 CRIS RADIANCES CHANNEL 929 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2645, expected range: 0.1847 0.2176
NOAA20 CRIS RADIANCES CHANNEL 39 : out of range
4 times in the last 10 days for at least one item
Considerable: avg_biascorr=0.1832, expected range: 0.0647 0.1400
gpsro
METOP-A GRAS SETTING HEIGHT 2-4 KM : out of range
19 times in the last 10 days for at least one item
Slight: avg_norm_fgdepar=-0.1446, expected range: 0.1219 0.1219
METOP-A GRAS SETTING HEIGHT 4-6 KM : out of range
7 times in the last 10 days for at least one item
Slight: stdev_norm_fgdepar=0.6976, expected range: 0.7410 0.8664
scatt
All HY-2B SCATTEROMETER Global : all data missing
Severe: obs_number=0, expected range: 94318.80 157670.09
resat
AURA OMI OZONE, TOP PRESSURE LAYER 12-13 (HPA) : out of range
Considerable: obs_number=3933.0000, expected range: 4755.1335 7446.9915
Radiosondes
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 96 : all data missing
Severely_persistent: obs_number=0, expected range: 9.91 339.75
All HIGH RESO LAND TEMP ALL LAYERS Indian Ocean Tropica : all data missing
Severely_persistent: obs_number=0, expected range: 9.91 339.75
LAND TEMP TEMPERATURE (K) 32150 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=12.8828, expected range: -2.9507 1.6398
Severe: rms_fgdepar=12.8922, expected range: 0.0000 4.6224
Severe: avg_pge=0.8409, expected range: -0.2188 0.5775
LAND TEMP WIND VECTOR DIFF (M/S) 35700 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=18.9634, expected range: 0.0000 6.1840
Severe: avg_pge=0.8227, expected range: -0.4345 0.5485
LAND TEMP Q (G/KG) 96805 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=3.0382, expected range: 0.0686 1.0988
LAND TEMP Q (G/KG) 96805 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_fgdepar=-6.0979, expected range: -7.4562 7.3991
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : missing
Severe: obs_number=0.0000, expected range: 0.0000 333.3463
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
Considerable: obs_number=169.0000, expected range: 244.3280 263.9220
amdar
AMDAR WIND VECTOR DIFF (M/S) AFZA49 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.0001, expected range: 0.3826 6.9538
AMDAR WIND VECTOR DIFF (M/S) 00040369 PRESSURE LAYER 900-1200 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=22.5401, expected range: 0.0000 33.3983
ADS-C WIND VECTOR DIFF (M/S) ZMOBATBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.2283, expected range: 0.3234 6.8580
ADS-C WIND VECTOR DIFF (M/S) CHQYIUZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=18.1714, expected range: 0.0000 10.3627
airep
AIREP WIND VECTOR DIFF (M/S) UAL90 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=22.4289, expected range: 0.0000 34.3438
AIREP WIND VECTOR DIFF (M/S) ELY001 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.8735, expected range: 0.1822 5.3978
AIREP WIND VECTOR DIFF (M/S) UAL71 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=51.9029, expected range: -1.8786 7.0822
Severe: rms_fgdepar=51.9029, expected range: 0.0000 8.9179
AIREP WIND VECTOR DIFF (M/S) AAL722 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=26.1073, expected range: 0.4499 7.1292
AIREP WIND VECTOR DIFF (M/S) AAL86 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=23.2803, expected range: 0.3781 7.1579
AIREP WIND VECTOR DIFF (M/S) THY78C PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=24.3353, expected range: 0.1267 7.1176
AIREP WIND VECTOR DIFF (M/S) BAW92W PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=23.9291, expected range: 0.0000 9.7858
pilot
All BUFR LAND PILOT ALL LAYERS North West Pacific : all data missing
Severe: obs_number=0, expected range: 27.03 174.06
BUFR LAND PILOT WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : missing
1 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 27.0338 174.0632
synop
AUTOMATIC LAND SYNOP RH2M (%) 68593 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-55.7836, expected range: -85.4314 45.8820
Severely_persistent: rms_fgdepar=55.7836, expected range: 0.0000 85.4314
Severely_persistent: avg_pge=0.9978, expected range: -1.8171 0.7500
MANUAL LAND SYNOP RH2M (%) 76040 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9997, expected range: -1.7737 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 86648 : out of range
39 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=754.0511, expected range: 0.0000 1734.5500
Severely_persistent: avg_pge=0.8557, expected range: 0.7116 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 89811 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-55.3664, expected range: -155.5461 83.3032
Severe: rms_fgdepar=56.2870, expected range: 0.0000 139.2409
AUTOMATIC LAND SYNOP RH2M (%) 41266 : out of range
Severe: rms_fgdepar=39.2406, expected range: 2.8799 21.2022
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 67221 : out of range
Severe: avg_pge=0.8058, expected range: 0.5466 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 92014 : out of range
Severe: rms_fgdepar=565.0158, expected range: 0.0000 178.6638
MANUAL LAND SYNOP RH2M (%) 41560 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9986, expected range: -0.4883 0.5608
MANUAL LAND SYNOP RH2M (%) 95813 : out of range
Severe: rms_fgdepar=44.3761, expected range: 0.0000 35.0064
Severe: avg_pge=0.8169, expected range: -0.0485 0.0660
MANUAL LAND SYNOP RH2M (%) 67743 : out of range
Severe: rms_fgdepar=45.5274, expected range: 0.0000 23.3812
Severe: avg_pge=0.8823, expected range: -0.0023 0.0086
BUFR LAND SYNOP SURFACE PRESSURE (PA) 16360 : out of range
Severe: avg_fgdepar=901.3936, expected range: -260.9058 114.6002
Severe: rms_fgdepar=901.5626, expected range: 0.0000 254.5135
Severe: avg_pge=0.9382, expected range: -0.7921 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48921 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=452.9382, expected range: 0.0000 232.8995
Severe: avg_pge=0.8484, expected range: -1.0170 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24641 : out of range
Severe: rms_fgdepar=567.8106, expected range: 0.0000 208.7008
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48952 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8294, expected range: -0.8088 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24143 : out of range
Severe: rms_fgdepar=536.8564, expected range: 0.0000 150.3786
BUFR LAND SYNOP SURFACE PRESSURE (PA) 16134 : out of range
Severe: rms_fgdepar=347.3625, expected range: 3.6018 117.3775
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48935 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=648.2922, expected range: -171.0351 122.2494
Severe: rms_fgdepar=749.1077, expected range: 0.0000 167.4802
BUFR LAND SYNOP RH2M (%) 95813 : out of range
Severe: rms_fgdepar=37.9855, expected range: 3.2169 17.3372
BUFR LAND SYNOP RH2M (%) 94334 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=63.7707, expected range: -15.4528 16.3587
Severe: rms_fgdepar=63.7707, expected range: 0.0000 17.9016
Severe: avg_pge=1.0000, expected range: -0.0032 0.0096
BUFR LAND SYNOP RH2M (%) 51765 : out of range
Severe: avg_fgdepar=56.3839, expected range: -20.1901 23.5405
Severe: rms_fgdepar=56.6544, expected range: 0.0000 14.9838
BUFR LAND SYNOP RH2M (%) 71278 : out of range
Severe: rms_fgdepar=32.5379, expected range: 0.0000 17.1888
ship
ABBREVIATED SHIP WIND VECTOR DIFF (M/S) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8145, expected range: 0.1763 0.7500
ABBREVIATED SHIP WIND VECTOR DIFF (M/S) WTEK : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8145, expected range: 0.1763 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRRD3 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-645.3271, expected range: -2092.6337 1903.8692
Severely_persistent: rms_fgdepar=645.3271, expected range: -1210.4557 1814.5400
Severely_persistent: avg_pge=0.8657, expected range: -1.2109 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7TM6 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-652.4100, expected range: -1077.0708 -83.9346
Severely_persistent: rms_fgdepar=652.4100, expected range: 162.0084 1028.9031
Severely_persistent: avg_pge=0.8678, expected range: 0.1376 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6TQ6 : out of range
43 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-715.6731, expected range: -1284.6302 -94.0041
Severely_persistent: rms_fgdepar=715.7485, expected range: 448.1961 1000.2383
BUFR SHIP SYNOP SURFACE PRESSURE (PA) AVQU : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=976.1028, expected range: 132.3337 1588.6179
Severely_persistent: rms_fgdepar=976.3930, expected range: 188.2591 1560.7622
SHIP SURFACE PRESSURE (PA) V7DR9 : out of range
Severe: avg_fgdepar=571.7429, expected range: 54.0399 890.1547
Severe: rms_fgdepar=571.7429, expected range: 52.3601 895.3326
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) LDRG : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8857, expected range: -0.2527 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) AMOUK31 : out of range
Severe: avg_pge=0.8167, expected range: -0.8858 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OZSK2 : out of range
Severe: avg_fgdepar=-935.9142, expected range: -261.1827 237.9126
Severe: rms_fgdepar=935.9142, expected range: 0.0000 290.8192
Severe: avg_pge=0.9081, expected range: -0.6910 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6XQ2 : out of range
Severe: avg_fgdepar=518.6738, expected range: -118.4381 55.9694
Severe: rms_fgdepar=702.2879, expected range: 0.0000 114.3042
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V9143 : out of range
Severe: avg_pge=0.8004, expected range: -1.0663 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRKJ7 : out of range
Severe: avg_fgdepar=-522.8888, expected range: -261.6192 286.9475
Severe: rms_fgdepar=522.8888, expected range: 0.0000 207.7589
Severe: avg_pge=0.8431, expected range: -0.4210 0.5313
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7KD8 : out of range
Severe: rms_fgdepar=542.0518, expected range: 0.0000 422.6444
BUFR SHIP SYNOP SURFACE PRESSURE (PA) UCSJ : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-979.8174, expected range: -778.8057 905.6590
Severe: rms_fgdepar=979.8174, expected range: 0.0000 1121.1655
Severe: avg_pge=0.9103, expected range: -1.5844 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 2300593 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8282, expected range: 0.4913 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2501719 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=503.6607, expected range: 0.0000 940.2154
Severely_persistent: avg_pge=0.8683, expected range: -0.3916 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4801636 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=512.3824, expected range: -115.3784 134.0791
Severe: rms_fgdepar=512.3824, expected range: 0.0000 146.6050
Severe: avg_pge=0.8934, expected range: -0.1672 0.2204
DRIFTING BUOYS SURFACE PRESSURE (PA) 4700546 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-514.6540, expected range: -419.5768 215.7531
Severe: rms_fgdepar=517.8606, expected range: 0.0000 440.4409
Severe: avg_pge=0.8938, expected range: -0.8206 0.7500
metar
METAR SURFACE PRESSURE (PA) UTFA : out of range
Severe: rms_fgdepar=329.0505, expected range: 0.0000 158.7994
METAR SURFACE PRESSURE (PA) SCTB : out of range
Severe: rms_fgdepar=517.9262, expected range: 0.0000 184.3631
METAR SURFACE PRESSURE (PA) FBMN : out of range
Severe: avg_fgdepar=635.8433, expected range: -75.4734 204.1907
Severe: rms_fgdepar=635.8433, expected range: 0.0000 199.4089
METAR SURFACE PRESSURE (PA) LIBY : out of range
Severe: avg_fgdepar=885.7887, expected range: -272.4263 156.1044
Severe: rms_fgdepar=886.2928, expected range: 0.0000 203.6818
Severe: avg_pge=0.8935, expected range: -0.2693 0.3256
AUTOMATIC METAR SURFACE PRESSURE (PA) LIVC : out of range
Severe: rms_fgdepar=334.1954, expected range: 2.2905 148.0085
snow
MANUAL LAND SYNOP SNOW (CM) 30815 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=52.6058, expected range: 10.8451 73.0893
Severely_persistent: rms_fgdepar=52.6058, expected range: 10.8451 73.0893
BUFR LAND SYNOP SNOW (CM) 30815 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=52.7573, expected range: 10.5426 73.4334
Severely_persistent: rms_fgdepar=52.7573, expected range: 10.5426 73.4334
BUFR LAND SYNOP SNOW (CM) _MI16E6F : out of range
36 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=57.0316, expected range: 51.8737 68.2876
BUFR LAND SYNOP SNOW (CM) _MI16E6F : out of range
36 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=57.7863, expected range: 53.2387 68.0440
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=12.2523, expected range: 0.0000 15.4133
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89578 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.3113, expected range: -17.8801 4.6243
Severely_persistent: rms_fgdepar=13.3825, expected range: 0.0000 17.1389
METAR 2M TEMPERATURE (K) UGMS : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=12.2163, expected range: 7.3560 14.1925
Severely_persistent: rms_fgdepar=12.5217, expected range: 7.5021 14.1988
BUFR LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=12.4881, expected range: 0.0000 15.6020
BUFR LAND SYNOP 2M TEMPERATURE (K) 89578 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.1982, expected range: -18.0242 4.7068
Severely_persistent: rms_fgdepar=13.2687, expected range: 0.0000 17.2840
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71040 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-16.3725, expected range: -9.0749 6.1411
Severe: rms_fgdepar=16.3733, expected range: -6.2652 11.9453
MANUAL LAND SYNOP 2M TEMPERATURE (K) 36873 : out of range
Severe: rms_fgdepar=11.2453, expected range: 0.1132 2.8210
METAR 2M TEMPERATURE (K) EDDH : out of range
Severe: avg_fgdepar=12.1928, expected range: -1.0040 1.8719
Severe: rms_fgdepar=13.2576, expected range: 0.1965 2.6213
METAR 2M TEMPERATURE (K) MMBT : out of range
Severe: rms_fgdepar=12.8446, expected range: 0.9176 5.1236
BUFR LAND SYNOP 2M TEMPERATURE (K) 71040 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-16.4398, expected range: -9.1554 6.1678
Severe: rms_fgdepar=16.4406, expected range: -6.3222 12.0180
rh2m
METAR RH2M (%) LPOV : out of range
Severe: rms_fgdepar=36.0893, expected range: 0.0000 18.5870