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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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

resat
AURA/OMI OZONE, TOP PRESSURE LAYER 0-1 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=3016.0000, expected range: 16508.3283 24565.0928
Radiosondes
LAND TEMP WIND VECTOR DIFF (M/S) 42111 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.1139, expected range: 1.5835 7.0470
LAND TEMP Q (G/KG) 42361 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.6986, expected range: 0.0000 2.8133
HIGH RESO LAND TEMP TEMPERATURE (K) 13275 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=10.7042, expected range: 0.3865 1.7698
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=3.9481, expected range: 0.0711 0.9749
amdar
WIGOS AMDAR TEMPERATURE (K) MZXYCOZA PRESSURE LAYER 0-300 (HPA) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8896, expected range: -1.7874 0.7500
AMDAR WIND VECTOR DIFF (M/S) JP9Z47V9 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.6271, expected range: 0.0000 7.8192
WIGOS AMDAR TEMPERATURE (K) ZAJ2WYBA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.3298, expected range: 0.0000 2.2449
WIGOS AMDAR TEMPERATURE (K) RMAIXMJA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=7.1682, expected range: 0.0000 1.8667
WIGOS AMDAR TEMPERATURE (K) TVBGUUJA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.7644, expected range: 0.0000 3.3711
WIGOS AMDAR TEMPERATURE (K) SK3UNWJA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=8.7725, expected range: 0.0000 2.8892
WIGOS AMDAR TEMPERATURE (K) MWCENVZA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=7.5979, expected range: 0.0000 2.3090
WIGOS AMDAR TEMPERATURE (K) Y1QENVZA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.4709, expected range: 0.0000 2.8329
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU8549 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.1053, expected range: 0.0000 8.0893
WIGOS AMDAR WIND VECTOR DIFF (M/S) Y1QENVZA PRESSURE LAYER 900-1200 (H : out of range
Severe: rms_fgdepar=15.9152, expected range: 0.0000 8.0949
WIGOS AMDAR TEMPERATURE (K) PRESSURE LAYER 900-1200 (HPA) : out of range
Slight: rms_fgdepar=1.5173, expected range: 0.6004 1.4143
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 10488 PRESSURE LAYER 600-900 : out of range
Severe: avg_pge=0.8303, expected range: -0.5462 0.7500
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 42634 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.6449, expected range: 0.3391 7.5743
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
8 times in the last 10 days for at least one item
Severely_persistent: obs_number=16.0000, expected range: 149.6504 188.0996
Considerable: rms_fgdepar=149.3825, expected range: 20.4252 105.8052
BUFR LAND SYNOP RH2M (%) 01463 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9224, expected range: -1.8451 0.7500
BUFR LAND SYNOP RH2M (%) 94229 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9226, expected range: -2.0484 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40664 : out of range
Severe: rms_fgdepar=996.8427, expected range: 0.0000 125.5719
Severe: avg_pge=0.9433, expected range: -0.4340 0.5277
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 82915 : out of range
Severe: avg_pge=0.8210, expected range: -0.8817 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40629 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8125, expected range: -1.3192 0.7500
MANUAL LAND SYNOP RH2M (%) 40831 : out of range
Severe: avg_pge=0.9790, expected range: -0.5151 0.6216
MANUAL LAND SYNOP RH2M (%) 40066 : out of range
Severe: rms_fgdepar=50.7616, expected range: 0.0000 42.3564
Severe: avg_pge=0.9821, expected range: -0.6645 0.7500
MANUAL LAND SYNOP RH2M (%) 94466 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9811, expected range: -1.9985 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 61270 : out of range
Severe: rms_fgdepar=507.9900, expected range: 0.0000 263.6886
BUFR LAND SYNOP SURFACE PRESSURE (PA) 29023 : out of range
Severe: rms_fgdepar=375.0968, expected range: 0.0000 129.0824
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24507 : out of range
Severe: rms_fgdepar=519.1953, expected range: 0.0000 130.3679
BUFR LAND SYNOP RH2M (%) 94451 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=1.0000, expected range: -1.8971 0.7500
BUFR LAND SYNOP RH2M (%) 94356 : out of range
Severe: rms_fgdepar=33.5772, expected range: 0.0000 17.8391
BUFR LAND SYNOP RH2M (%) 94466 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9889, expected range: -1.9914 0.7500
BUFR LAND SYNOP RH2M (%) 02629 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8129, expected range: -1.1848 0.7500
ship
SHIP WIND VECTOR DIFF (M/S) WDG8555 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8474, expected range: -1.1397 0.7500
SHIP WIND VECTOR DIFF (M/S) VRGE7 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8847, expected range: -0.2744 0.7500
SHIP SURFACE PRESSURE (PA) AUFH : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8299, expected range: -0.6663 0.7500
AUTOMATIC SHIP WIND VECTOR DIFF (M/S) 66022 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8869, expected range: -1.1428 0.7500
AUTOMATIC SHIP WIND VECTOR DIFF (M/S) CFL24 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=18.8032, expected range: 0.0000 9.4598
Severe: avg_pge=0.8987, expected range: -0.5767 0.7500
SHIP WIND VECTOR DIFF (M/S) ONFZ : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9082, expected range: -0.4744 0.7500
SHIP SURFACE PRESSURE (PA) VRCS2 : out of range
Severe: rms_fgdepar=334.8331, expected range: 0.0000 301.2635
Severe: avg_pge=0.8199, expected range: -1.1177 0.7500
SHIP SURFACE PRESSURE (PA) VRKS4 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8372, expected range: -0.8549 0.7500
SHIP SURFACE PRESSURE (PA) VRGE7 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8862, expected range: -0.7632 0.7500
SHIP SURFACE PRESSURE (PA) TBWUK68 : out of range
Severe: rms_fgdepar=522.0526, expected range: 0.0000 353.2944
Severe: avg_pge=0.8730, expected range: -0.8907 0.7500
SHIP SURFACE PRESSURE (PA) C6KD8 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=645.4414, expected range: -237.6066 343.4262
Severe: avg_pge=0.8890, expected range: -1.1851 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 7401507 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8386, expected range: -0.1685 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=55.0000, expected range: 64.1319 67.5978
metar
METAR SURFACE PRESSURE (PA) FQMA : out of range
Severe: rms_fgdepar=356.4361, expected range: 0.0000 161.4076
METAR SURFACE PRESSURE (PA) RJAW : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=391.0580, expected range: 0.0000 105.1717
AUTOMATIC METAR SURFACE PRESSURE (PA) PFNO : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=436.6657, expected range: 0.0000 143.6941
AUTOMATIC METAR SURFACE PRESSURE (PA) KADS : out of range
Severe: rms_fgdepar=317.3075, expected range: 0.0000 158.8909
AUTOMATIC METAR SURFACE PRESSURE (PA) KACT : out of range
Severe: rms_fgdepar=317.3048, expected range: 0.0000 98.4507
snow
MANUAL LAND SYNOP SNOW (CM) : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=127.3616, expected range: -2.2955 3.1395
Considerable: avg_fgdepar=-4.8942, expected range: -2.4325 2.2193
BUFR LAND SYNOP SNOW (CM) : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=1.0260, expected range: 61.8853 116.1236
Slight: avg_fgdepar=0.0426, expected range: -4.9724 -1.5710
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8205, expected range: 0.6993 0.9180
MANUAL LAND SYNOP 2M TEMPERATURE (K) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: obs_number=126.0000, expected range: 95.5123 103.9613
MANUAL LAND SYNOP 2M TEMPERATURE (K) 08075 : out of range
Severe: rms_fgdepar=8.7145, expected range: 0.0000 4.1725
MANUAL LAND SYNOP 2M TEMPERATURE (K) 23589 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.0287, expected range: 0.0000 3.3268
METAR 2M TEMPERATURE (K) KNPA : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.1413, expected range: 0.3709 3.7904
METAR 2M TEMPERATURE (K) KDAL : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.6110, expected range: 0.2629 3.4082
METAR 2M TEMPERATURE (K) LICX : out of range
Severe: rms_fgdepar=10.1048, expected range: 0.0000 4.7045
LAND TEMP 2M TEMPERATURE (K) 30557 : out of range
Severe: avg_est_pge=0.8072, expected range: -0.3553 1.3360
LAND TEMP 2M TEMPERATURE (K) 40948 : out of range
Severe: avg_est_pge=0.8121, expected range: 0.0045 1.1452
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 60692 : out of range
Severe: rms_fgdepar=31.4649, expected range: 0.0000 12.6573
MANUAL LAND SYNOP RH2M (%) : out of range
3 times in the last 10 days for at least one item
Considerable: obs_number=125.0000, expected range: 85.8121 109.7668