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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-11-10 00:00

iasi
METOP-B/IASI RADIANCES (268 channels affected) : out of range
Severe: obs_number=15556.0000, expected range: 22573.9841 22969.8054
METOP-B/IASI RADIANCES CHANNEL 1479 : out of range
Slight: stdev_fgdepar=0.4250, expected range: 0.3566 0.4177
Atmospheric Motion Vector
GOES-15/AMV IR1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : out of range
Slight: avg_fgdepar=4.2953, expected range: 3.3758 4.1857
HIMAWARI-8 AMV IR1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HPA : out of range
1 times in the last 10 days for at least one item
Slight: avg_fgdepar=1.9192, expected range: 1.5429 1.8666
Radiosondes
LAND TEMP TEMPERATURE (K) 24266 PRESSURE LAYER 900-1200 (HPA) : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9003, expected range: -0.9069 0.7500
LAND TEMP Q (G/KG) 42706 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=6.8027, expected range: 0.1847 3.9151
LAND TEMP TEMPERATURE (K) 23955 PRESSURE LAYER 300-600 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8858, expected range: -0.6773 0.7500
LAND TEMP TEMPERATURE (K) 42706 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=6.2023, expected range: 0.0654 2.8835
LAND TEMP WIND VECTOR DIFF (M/S) 58203 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.3651, expected range: 0.0000 7.0717
LAND TEMP WIND VECTOR DIFF (M/S) 42123 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.5861, expected range: 2.0961 7.3579
LAND TEMP WIND VECTOR DIFF (M/S) 42027 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=18.3567, expected range: 1.7371 7.0452
LAND TEMP WIND VECTOR DIFF (M/S) 42706 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=17.5793, expected range: 0.0000 6.5892
Severe: avg_pge=0.8337, expected range: -0.1823 0.2945
HIGH RESO LAND TEMP Q (G/KG) (2 pressure layers affected) : out of range
Considerable: avg_fgdepar=0.0117, expected range: -0.0077 0.0052
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) XIZX1KBA PRESSURE LAYER 0-300 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=48.4365, expected range: 0.0000 25.2805
Severe: avg_pge=0.9400, expected range: -1.2992 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) 0QVZIOJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.9604, expected range: 0.0000 14.5747
Severe: avg_pge=0.8434, expected range: -0.7527 0.7500
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 67027 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.8278, expected range: 0.5909 7.2015
LAND PILOT WIND VECTOR DIFF (M/S) 42706 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=15.0920, expected range: 0.0000 5.4484
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 48810 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8519, expected range: -0.2899 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83844 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8692, expected range: -1.1801 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94654 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8693, expected range: -1.5936 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 60018 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8445, expected range: 0.6680 0.7500
MANUAL LAND SYNOP Z (M) 38856 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9586, expected range: -0.8815 0.7500
MANUAL LAND SYNOP RH2M (%) 64700 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9980, expected range: -1.7891 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40930 : out of range
Severe: rms_fgdepar=523.3873, expected range: 0.0000 345.5000
Severe: avg_pge=0.8342, expected range: -0.0124 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 86170 : out of range
Severe: rms_fgdepar=476.4350, expected range: 0.0000 422.8384
Severe: avg_pge=0.8776, expected range: -1.1232 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 47022 : out of range
Severe: rms_fgdepar=438.3120, expected range: 0.0000 387.2530
Severe: avg_pge=0.8202, expected range: -1.0070 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83095 : out of range
Severe: rms_fgdepar=310.5260, expected range: 0.0000 64.0322
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 41947 : out of range
Severe: rms_fgdepar=322.6572, expected range: 0.0000 167.5195
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 67157 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=464.9149, expected range: 0.0000 198.0789
Severe: avg_pge=0.8585, expected range: -0.4596 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
Severe: obs_number=391.0000, expected range: 310.7492 344.0286
BUFR LAND SYNOP RH2M (%) 86916 : out of range
Severe: avg_pge=0.9913, expected range: -0.0136 0.0231
BUFR LAND SYNOP RH2M (%) 06747 : out of range
Severe: avg_pge=0.9131, expected range: -0.7416 0.7500
BUFR LAND SYNOP RH2M (%) 06749 : out of range
Severe: avg_pge=0.9853, expected range: -1.0334 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 60250 : out of range
Severe: rms_fgdepar=428.6981, expected range: 0.0000 204.7151
BUFR LAND SYNOP SURFACE PRESSURE (PA) 30703 : out of range
Severe: rms_fgdepar=467.2973, expected range: 0.0000 192.5995
BUFR LAND SYNOP SURFACE PRESSURE (PA) 61995 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8160, expected range: -1.0322 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 04166 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8873, expected range: -0.1401 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71486 : out of range
Severe: rms_fgdepar=413.6433, expected range: 0.0000 372.1949
Severe: avg_pge=0.8796, expected range: -0.7158 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94439 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8186, expected range: -1.4806 0.7500
MANUAL LAND SYNOP RH2M (%) : out of range
Considerable: obs_number=310.0000, expected range: 245.5337 288.1330
ship
SHIP SURFACE PRESSURE (PA) 9HA4800 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8649, expected range: -1.0742 0.7500
SHIP SURFACE PRESSURE (PA) C6BR3 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8181, expected range: -1.2985 0.7500
SHIP WIND VECTOR DIFF (M/S) PBGJ : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8580, expected range: 0.3484 0.7500
ABBREVIATED SHIP SURFACE PRESSURE (PA) WTDF : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9043, expected range: -1.5166 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) AMOUK28 : out of range
Severe: rms_fgdepar=405.7438, expected range: 0.0000 335.3829
Severe: avg_pge=0.8613, expected range: -0.4764 0.7500
SHIP SURFACE PRESSURE (PA) 9HA3731 : out of range
Severe: rms_fgdepar=804.6596, expected range: 0.0000 587.8902
Severe: avg_pge=0.9151, expected range: -1.3375 0.7500
SHIP SURFACE PRESSURE (PA) IBJD : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8278, expected range: -0.6669 0.7500
SHIP SURFACE PRESSURE (PA) CQHW : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8184, expected range: -0.6908 0.7500
SHIP WIND VECTOR DIFF (M/S) TBWUK80 : out of range
Severe: rms_fgdepar=18.6012, expected range: 0.0000 15.5420
Severe: avg_pge=0.9201, expected range: -0.7218 0.7500
SHIP WIND VECTOR DIFF (M/S) VRKQ5 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9023, expected range: -0.3561 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=239.3478, expected range: -51.0037 47.9778
Severely_persistent: avg_biascorr=568.7500, expected range: -171.6900 195.8511
Severely_persistent: avg_biascorr=736.9231, expected range: -82.3971 87.0754
Severely_persistent: avg_biascorr=-4.0112, expected range: -0.2657 0.2486
Severely_persistent: avg_biascorr=51.9011, expected range: -8.8177 9.4802
DRIFTING BUOYS SURFACE PRESSURE (PA) 4801652 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8915, expected range: -0.5459 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2301788 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=581.1087, expected range: 0.0000 89.9658
Severely_persistent: avg_pge=0.8980, expected range: -1.0811 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6401570 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=521.2056, expected range: 0.0000 293.2722
Severe: avg_pge=0.8909, expected range: -0.8028 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4801654 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8630, expected range: -0.7434 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4801717 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9014, expected range: -1.1873 0.7500
metar
METAR SURFACE PRESSURE (PA) SVMC : out of range
Severe: avg_pge=0.8146, expected range: -0.7968 0.7500
METAR SURFACE PRESSURE (PA) OPNH : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=515.9434, expected range: 0.0000 266.6752
METAR SURFACE PRESSURE (PA) WMKL : out of range
Severe: rms_fgdepar=382.6471, expected range: 0.0000 183.4316
METAR SURFACE PRESSURE (PA) LICU : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=604.6200, expected range: 0.0000 235.9728
snow
AUTOMATIC LAND SYNOP SNOW (CM) : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-0.0235, expected range: -0.0059 0.0063
Severely_persistent: rms_fgdepar=0.1959, expected range: -0.0610 0.0773
BUFR LAND SYNOP SNOW (CM) : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-0.0161, expected range: -0.0031 0.0027
Severely_persistent: rms_fgdepar=0.4257, expected range: -0.0226 0.0262
t2m
LAND TEMP 2M TEMPERATURE (K) 72469 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8249, expected range: -0.4857 1.4531
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 06784 : out of range
Severe: rms_fgdepar=9.5401, expected range: 0.0000 5.2123
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 06785 : out of range
Severe: rms_fgdepar=12.1513, expected range: 0.0000 6.5750
Severe: avg_est_pge=0.8277, expected range: -0.3008 0.7679
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02036 : out of range
Severe: avg_est_pge=0.8144, expected range: -0.3734 1.0187
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 94638 : out of range
Severe: rms_fgdepar=7.0525, expected range: 0.0000 3.6715
MANUAL LAND SYNOP 2M TEMPERATURE (K) 37801 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8011, expected range: -0.3998 1.0457
MANUAL LAND SYNOP 2M TEMPERATURE (K) 29313 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.1968, expected range: 0.0000 3.4811
MANUAL LAND SYNOP 2M TEMPERATURE (K) 23443 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=9.9826, expected range: 0.0000 5.4883
MANUAL LAND SYNOP 2M TEMPERATURE (K) 22106 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=12.1499, expected range: 0.0000 6.9367
MANUAL LAND SYNOP 2M TEMPERATURE (K) 29456 : out of range
Severe: rms_fgdepar=7.5195, expected range: 0.0000 2.9491
MANUAL LAND SYNOP 2M TEMPERATURE (K) 37897 : out of range
Severe: rms_fgdepar=10.8916, expected range: 0.0000 5.5513
MANUAL LAND SYNOP 2M TEMPERATURE (K) 29328 : out of range
Severe: rms_fgdepar=7.1981, expected range: 0.0000 3.0108
MANUAL LAND SYNOP 2M TEMPERATURE (K) 65528 : out of range
Severe: rms_fgdepar=8.2070, expected range: 0.0000 3.8567
METAR 2M TEMPERATURE (K) EGKB : out of range
Severe: rms_fgdepar=9.6783, expected range: 0.0000 3.4016
METAR 2M TEMPERATURE (K) EDDH : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=11.0998, expected range: 0.0000 4.1527
METAR 2M TEMPERATURE (K) VOBL : out of range
Severe: rms_fgdepar=7.8518, expected range: 0.5075 3.0650
METAR 2M TEMPERATURE (K) USCM : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=9.3487, expected range: 0.0000 4.1877
METAR 2M TEMPERATURE (K) ENEV : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.4446, expected range: 0.0000 4.2017
BUFR LAND SYNOP 2M TEMPERATURE (K) 06784 : out of range
Severe: rms_fgdepar=9.4905, expected range: 0.0000 5.1651