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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-09-13 00:00

iasi
METOP-B/IASI RADIANCES (343 channels affected) : out of range
Severe: obs_number=15075.0000, expected range: 21151.7682 23047.7702
METOP-A/IASI RADIANCES CHANNEL 1479 : out of range
Slight: avg_fgdepar=-0.0985, expected range: -0.0815 0.0698
Radiosondes
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: obs_number=195.0000, expected range: 256.5739 303.5372
LAND TEMP Q (G/KG) 98233 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.6092, expected range: 0.0000 2.0616
LAND TEMP Q (G/KG) 38341 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.9385, expected range: -0.7802 0.7500
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
Severe: obs_number=90.0000, expected range: 180.8067 194.5266
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (3 pressure layers affected : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=90.0000, expected range: 180.8067 194.5266
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 47778 (2 pressure layers af : out of range
Severe: rms_fgdepar=15.8013, expected range: 0.0000 7.3203
amdar
AMDAR TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=1.6971, expected range: 0.4121 0.9465
AMDAR TEMPERATURE (K) JP9Z58WZ (3 pressure layers affected) : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=11.1598, expected range: 0.0000 1.6643
AMDAR TEMPERATURE (K) JP9Z58WZ (2 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8932, expected range: -0.0529 0.0607
WIGOS AMDAR TEMPERATURE (K) UZEEISRA PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=8.8668, expected range: 0.0000 1.8727
Severe: avg_pge=0.8723, expected range: -0.0639 0.0690
WIGOS AMDAR WIND VECTOR DIFF (M/S) K2XINLJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.5626, expected range: 0.0000 8.3463
WIGOS AMDAR WIND VECTOR DIFF (M/S) CN4RB0ZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.5097, expected range: 0.0000 6.4921
WIGOS AMDAR WIND VECTOR DIFF (M/S) UZEEISRA PRESSURE LAYER 300-600 (HP : out of range
Severe: rms_fgdepar=15.3479, expected range: 0.0000 10.4785
Severe: avg_pge=0.8425, expected range: -0.4638 0.5921
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 71994 PRESSURE LAYER 0-300 (H : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=28.7420, expected range: 0.0000 14.0546
synop
MANUAL LAND SYNOP RH2M (%) 40016 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9868, expected range: -1.6027 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42894 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=355.7340, expected range: 0.0000 232.0350
Severely_persistent: avg_pge=0.8415, expected range: -0.7420 0.7500
MANUAL LAND SYNOP Z (M) 42296 : out of range
Severe: rms_fgdepar=507.3655, expected range: 0.0000 154.2062
Severe: avg_pge=0.9715, expected range: -0.0008 0.0015
MANUAL LAND SYNOP RH2M (%) 60580 : out of range
Severe: rms_fgdepar=48.0617, expected range: 0.0000 23.6523
Severe: avg_pge=0.9678, expected range: -0.0099 0.0178
MANUAL LAND SYNOP RH2M (%) 94463 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=65.8349, expected range: 0.0000 15.4972
Severe: avg_pge=1.0000, expected range: -0.7302 0.7500
MANUAL LAND SYNOP RH2M (%) 60563 : out of range
Severe: avg_pge=0.8896, expected range: -0.8137 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 60490 : out of range
Severe: rms_fgdepar=315.2792, expected range: 0.0000 149.4989
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42711 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=792.6262, expected range: 0.0000 715.0972
Severe: avg_pge=0.9281, expected range: -1.1096 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42851 : out of range
Severe: rms_fgdepar=443.8826, expected range: 0.0000 217.4598
Severe: avg_pge=0.8848, expected range: -0.7325 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 31102 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=659.5425, expected range: 0.0000 112.7962
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 76412 : out of range
Severe: rms_fgdepar=354.4948, expected range: 0.0000 319.6949
Severe: avg_pge=0.8309, expected range: -0.8160 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43272 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=341.7250, expected range: 0.0000 300.2700
Severe: avg_pge=0.8176, expected range: -0.9938 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 94463 : out of range
Severe: rms_fgdepar=353.2872, expected range: 0.0000 108.1152
Severe: avg_pge=0.8181, expected range: -0.4379 0.4811
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 87563 : out of range
Severe: avg_pge=0.8104, expected range: -0.9944 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43083 : out of range
Severe: rms_fgdepar=352.7544, expected range: 0.0000 235.7449
Severe: avg_pge=0.8392, expected range: -0.9147 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83844 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8906, expected range: -1.0603 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 97284 : out of range
Severe: rms_fgdepar=418.5447, expected range: 0.0000 106.3981
Severe: avg_pge=0.8367, expected range: -0.8965 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43207 : out of range
Severe: avg_pge=0.8558, expected range: -0.9945 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42447 : out of range
Severe: rms_fgdepar=469.1711, expected range: 0.0000 367.7044
Severe: avg_pge=0.8758, expected range: -0.7733 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83897 : out of range
Severe: avg_pge=0.8230, expected range: -0.9683 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42408 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=464.8084, expected range: 0.0000 400.4502
Severe: avg_pge=0.8804, expected range: -1.1071 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43058 : out of range
Severe: rms_fgdepar=856.9417, expected range: 0.0000 250.1585
Severe: avg_pge=0.9335, expected range: -0.7301 0.7500
BUFR LAND SYNOP RH2M (%) 94311 : out of range
Severe: avg_pge=0.9992, expected range: -0.1358 0.1623
BUFR LAND SYNOP RH2M (%) 94451 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9930, expected range: -1.4827 0.7500
BUFR LAND SYNOP RH2M (%) 16084 : out of range
Severe: avg_pge=0.9298, expected range: -0.9846 0.7500
BUFR LAND SYNOP RH2M (%) 95746 : out of range
Severe: rms_fgdepar=51.9713, expected range: 0.0000 36.5245
Severe: avg_pge=0.9998, expected range: -0.5102 0.5864
BUFR LAND SYNOP RH2M (%) 94356 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9592, expected range: -1.0847 0.7500
BUFR LAND SYNOP RH2M (%) 95627 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9686, expected range: -1.2094 0.7500
BUFR LAND SYNOP RH2M (%) 94439 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=1.0000, expected range: -1.8659 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 14441 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=363.4302, expected range: 0.0000 147.6599
Severe: avg_pge=0.8437, expected range: -0.4899 0.6906
BUFR LAND SYNOP SURFACE PRESSURE (PA) 27415 : out of range
Severe: avg_pge=0.8657, expected range: -0.2310 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48957 : out of range
Severe: rms_fgdepar=363.5248, expected range: 0.0000 195.6929
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48109 : out of range
Severe: rms_fgdepar=374.1132, expected range: 0.0000 240.0869
Severe: avg_pge=0.8716, expected range: -0.5404 0.7500
ship
AUTOMATIC SHIP WIND VECTOR DIFF (M/S) 66022 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8237, expected range: -1.1782 0.7500
AUTOMATIC SHIP WIND VECTOR DIFF (M/S) 42013 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=15.4442, expected range: 0.0000 9.2001
Severely_persistent: avg_pge=0.8656, expected range: -0.9740 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) 44058 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8210, expected range: -0.2543 0.7500
SHIP SURFACE PRESSURE (PA) UDKG : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8301, expected range: -0.9684 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) LF4J : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9183, expected range: 0.3264 0.7500
SHIP SURFACE PRESSURE (PA) 9V5242 : out of range
Severe: rms_fgdepar=1115.3967, expected range: 0.0000 235.5952
Severe: avg_pge=0.9419, expected range: -0.6775 0.7500
SHIP SURFACE PRESSURE (PA) OXSQ2 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=1110.9862, expected range: 0.0000 682.9324
Severe: avg_pge=0.9405, expected range: -0.6948 0.7500
SHIP SURFACE PRESSURE (PA) VRDJ3 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8482, expected range: -0.9568 0.7500
SHIP SURFACE PRESSURE (PA) 9V2024 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=829.0413, expected range: 0.0000 580.5226
Severe: avg_pge=0.9125, expected range: -1.0879 0.7500
SHIP SURFACE PRESSURE (PA) TBWUK64 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=462.7314, expected range: 0.0000 225.0803
Severe: avg_pge=0.8587, expected range: -0.9970 0.7500
SHIP SURFACE PRESSURE (PA) C6PA6 : out of range
Severe: rms_fgdepar=1020.9541, expected range: 0.0000 244.8966
Severe: avg_pge=0.9356, expected range: -0.8565 0.7500
SHIP SURFACE PRESSURE (PA) C6XP7 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=703.4932, expected range: 0.0000 342.9875
SHIP SURFACE PRESSURE (PA) VRNL8 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8197, expected range: -0.8910 0.7500
SHIP SURFACE PRESSURE (PA) V7QK9 : out of range
Severe: avg_pge=0.8377, expected range: -0.5343 0.7500
SHIP SURFACE PRESSURE (PA) WPTC : out of range
Severe: avg_pge=0.8259, expected range: -1.0991 0.7500
SHIP SURFACE PRESSURE (PA) H3VU : out of range
Severe: avg_pge=0.8451, expected range: -1.1668 0.7500
SHIP SURFACE PRESSURE (PA) KGTZ : out of range
Severe: avg_pge=0.8022, expected range: -0.6226 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-1.7664, expected range: 0.0000 0.0000
DRIFTING BUOYS SURFACE PRESSURE (PA) 1701560 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=341.6342, expected range: 0.0000 143.7233
DRIFTING BUOYS SURFACE PRESSURE (PA) 4601633 : out of range
Severe: rms_fgdepar=501.3884, expected range: 0.0000 439.2241
Severe: avg_pge=0.8208, expected range: -1.0210 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4801655 : out of range
Severe: rms_fgdepar=357.6831, expected range: 0.0000 131.0688
metar
METAR SURFACE PRESSURE (PA) FNHU : out of range
Severe: rms_fgdepar=837.3854, expected range: 0.0000 234.6196
METAR SURFACE PRESSURE (PA) KQQY : out of range
Severe: avg_pge=0.8141, expected range: 0.2288 0.7500
snow
AUTOMATIC LAND SYNOP SNOW (CM) : out of range
Severe: avg_fgdepar=-0.0217, expected range: -0.0072 0.0089
Severe: rms_fgdepar=0.7242, expected range: -0.1217 0.1509
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8176, expected range: 0.6726 0.8958
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: obs_number=222.0000, expected range: 270.4765 310.7806
BUFR LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8197, expected range: 0.6753 0.8953
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: obs_number=525.0000, expected range: 708.6005 852.2566
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 41170 : out of range
Severe: rms_fgdepar=8.9988, expected range: 0.0000 4.4584
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 06747 : out of range
Severe: avg_est_pge=0.8002, expected range: -0.3269 0.9651
MANUAL LAND SYNOP 2M TEMPERATURE (K) 68040 : out of range
Severe: rms_fgdepar=12.1145, expected range: 0.0000 3.7618
Severe: avg_est_pge=0.8013, expected range: -0.1839 0.3333
MANUAL LAND SYNOP 2M TEMPERATURE (K) 38565 : out of range
Severe: rms_fgdepar=7.1691, expected range: 0.3078 3.7029
METAR 2M TEMPERATURE (K) EEKE : out of range
Severe: rms_fgdepar=7.9512, expected range: 0.0000 2.3646
METAR 2M TEMPERATURE (K) EGJJ : out of range
Severe: rms_fgdepar=8.9288, expected range: 0.0000 3.6387
METAR 2M TEMPERATURE (K) KFFO : out of range
Severe: rms_fgdepar=10.2684, expected range: 0.0000 5.1199
METAR 2M TEMPERATURE (K) EDGS : out of range
Severe: rms_fgdepar=10.1833, expected range: 0.0000 4.3561
LAND TEMP 2M TEMPERATURE (K) 89664 : out of range
Severe: avg_est_pge=0.8047, expected range: -0.5748 1.2794
LAND TEMP 2M TEMPERATURE (K) 89009 : out of range
4 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8297, expected range: 0.3413 1.1529
BUFR LAND SYNOP 2M TEMPERATURE (K) 08040 : out of range
Severe: rms_fgdepar=7.2912, expected range: 0.0000 3.4408
BUFR LAND SYNOP 2M TEMPERATURE (K) 63742 : out of range
Severe: rms_fgdepar=9.4037, expected range: 0.0000 3.1277
BUFR LAND SYNOP 2M TEMPERATURE (K) 86889 : out of range
Severe: rms_fgdepar=9.1655, expected range: 0.0000 5.1047