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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-11-14 12:00

amsua
NOAA-15/AMSUA RADIANCES CHANNEL 7 : out of range
Considerable: stdev_fgdepar=0.1614, expected range: 0.1190 0.1514
iasi
All METOP-A/IASI RADIANCES ALL CHANNELS Missing
mhs
ALLSKY NOAA-19/MHS RADIANCES CHANNEL 1 : out of range
Considerable: obs_number=9965.0000, expected range: 10383.5996 11889.9432
ALLSKY NOAA-19/MHS RADIANCES CHANNEL 3 : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=9264.0000, expected range: 9634.3292 11012.8136
ALLSKY NOAA-19/MHS RADIANCES CHANNEL 5 : out of range
Considerable: obs_number=9530.0000, expected range: 9978.0712 11418.2145
gmi
ALLSKY GPM/GMI RADIANCES (13 channels affected) : out of range
Considerable: obs_number=1921.0000, expected range: 3285.3086 5377.0504
ALLSKY GPM/GMI RADIANCES CHANNEL 3 : out of range
1 times in the last 10 days for at least one item
Slight: stdev_norm_fgdepar=0.6666, expected range: 0.6844 0.7825
Atmospheric Motion Vector
METEOSAT-8/AMV CLOUDY WV1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 : out of range
Slight: obs_number=6207.0000, expected range: 3428.0985 5776.9603
Radiosondes
LAND TEMP Q (G/KG) PRESSURE LAYER 0-300 (HPA) : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=0.0097, expected range: -0.0024 0.0021
Severely_persistent: rms_fgdepar=0.0167, expected range: 0.0000 0.0074
LAND TEMP TEMPERATURE (K) 30372 PRESSURE LAYER 900-1200 (HPA) : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8225, expected range: -0.9069 0.7500
HIGH RESO LAND TEMP TEMPERATURE (K) 71964 PRESSURE LAYER 900-1200 (HPA : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=9.8333, expected range: 0.0000 7.6515
Severely_persistent: avg_pge=0.9251, expected range: -0.9514 0.7500
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 04270 PRESSURE LAYER 900-12 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9001, expected range: -1.1059 0.7500
LAND TEMP TEMPERATURE (K) 74006 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=7.3055, expected range: 0.0000 1.6631
LAND TEMP TEMPERATURE (K) 32150 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=7.5958, expected range: 0.0000 2.5924
LAND TEMP TEMPERATURE (K) 72357 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=10.1087, expected range: 0.0000 3.9236
Severe: avg_pge=0.9186, expected range: -0.5184 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 44373 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=22.1961, expected range: 0.0000 11.5540
LAND TEMP WIND VECTOR DIFF (M/S) 34009 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=28.2513, expected range: 0.0000 7.0598
Severe: avg_pge=0.8928, expected range: -0.1936 0.3559
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=131.0000, expected range: 61.5949 70.1698
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=0.0222, expected range: -0.0150 0.0032
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=313.0000, expected range: 130.5691 186.3721
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_fgdepar=-2.7336, expected range: -0.9191 0.6365
Severe: rms_fgdepar=2.9481, expected range: 0.0000 1.0899
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (3 pressure layers affected : out of range
Severe: obs_number=450.0000, expected range: 247.2034 359.7377
HIGH RESO SEA TEMP Q (G/KG) PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=0.0188, expected range: -0.0071 0.0058
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=107.0000, expected range: 140.2761 261.2795
amdar
WIGOS AMDAR TEMPERATURE (K) EU0544 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.7765, expected range: 0.0000 1.9655
Severe: avg_pge=0.9301, expected range: -0.6560 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) EMDENVBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.0441, expected range: 0.0000 8.3360
WIGOS AMDAR WIND VECTOR DIFF (M/S) 3VQYR4JA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=18.3580, expected range: 0.0000 5.9961
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 47406 PRESSURE LAYER 300-600 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=39.5794, expected range: 0.0000 21.0534
Severe: avg_pge=0.9397, expected range: -1.0030 0.7500
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 97372 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=20.1154, expected range: 0.0000 7.1793
synop
BUFR LAND SYNOP SURFACE PRESSURE (PA) 72672 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8427, expected range: -1.2546 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 68291 : out of range
Severe: rms_fgdepar=28.3768, expected range: 0.0000 14.7966
AUTOMATIC LAND SYNOP RH2M (%) 37279 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9973, expected range: -1.5202 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 37163 : out of range
Severe: rms_fgdepar=578.0743, expected range: 0.0000 176.4373
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40646 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=694.2528, expected range: 0.0000 193.8100
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83919 : out of range
Severe: rms_fgdepar=795.1490, expected range: 0.0000 364.7461
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 82599 : out of range
Severe: rms_fgdepar=371.8253, expected range: 0.0000 115.9274
MANUAL LAND SYNOP RH2M (%) 41640 : out of range
Severe: rms_fgdepar=41.1409, expected range: 0.0000 21.1643
Severe: avg_pge=0.9333, expected range: -0.0223 0.0310
MANUAL LAND SYNOP RH2M (%) 67975 : out of range
Severe: rms_fgdepar=39.9623, expected range: 0.0000 18.3072
BUFR LAND SYNOP SURFACE PRESSURE (PA) 72570 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8020, expected range: -0.4554 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 29892 : out of range
Severe: rms_fgdepar=387.3304, expected range: 0.0000 263.8770
Severe: avg_pge=0.8486, expected range: -0.9802 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 04373 : out of range
Severe: rms_fgdepar=343.6800, expected range: 0.0000 161.3319
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71506 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=531.3278, expected range: 0.0000 266.1252
Severe: avg_pge=0.9105, expected range: -0.9485 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 78896 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8724, expected range: 0.3626 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48037 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8749, expected range: -0.9626 0.7500
BUFR LAND SYNOP RH2M (%) 81737 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8492, expected range: -0.9729 0.7500
ship
SHIP WIND VECTOR DIFF (M/S) PBGJ : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8708, expected range: 0.1840 0.7500
SHIP SURFACE PRESSURE (PA) C6VG8 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9035, expected range: 0.2957 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) MERFR14 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9213, expected range: -0.8971 0.7500
SHIP SURFACE PRESSURE (PA) 9V8503 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8601, expected range: -0.8137 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 6301687 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8768, expected range: -1.3300 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5601603 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=410.6678, expected range: 0.0000 207.0941
Severe: avg_pge=0.8676, expected range: -0.1475 0.1914
DRIFTING BUOYS SURFACE PRESSURE (PA) 2501664 : out of range
Severe: rms_fgdepar=627.0574, expected range: 0.0000 354.8178
Severe: avg_pge=0.9146, expected range: -0.5978 0.7500
metar
METAR SURFACE PRESSURE (PA) DNJO : out of range
Severe: rms_fgdepar=445.5034, expected range: 0.0000 227.8936
AUTOMATIC METAR SURFACE PRESSURE (PA) BGKK : out of range
Severe: rms_fgdepar=372.9183, expected range: 0.0000 174.1761
snow
AUTOMATIC LAND SYNOP SNOW (CM) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-0.2715, expected range: -0.0147 0.0129
Severely_persistent: rms_fgdepar=1.4554, expected range: -0.1058 0.1509
MANUAL LAND SYNOP SNOW (CM) 16021 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=38.6247, expected range: -3.5712 6.5400
BUFR LAND SYNOP SNOW (CM) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=1.7238, expected range: -0.0861 0.1403
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89578 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8340, expected range: 0.7362 0.9419
METAR 2M TEMPERATURE (K) UGMS : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8563, expected range: 0.1485 1.1249
LAND TEMP 2M TEMPERATURE (K) 56137 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8715, expected range: 0.5510 1.0642
LAND TEMP 2M TEMPERATURE (K) 56029 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8736, expected range: 0.6650 0.9983
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 68479 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.5544, expected range: 0.0000 4.0272
MANUAL LAND SYNOP 2M TEMPERATURE (K) 67271 : out of range
Severe: rms_fgdepar=13.1033, expected range: 0.0000 4.2237
MANUAL LAND SYNOP 2M TEMPERATURE (K) 31062 : out of range
Severe: rms_fgdepar=11.4872, expected range: 0.0000 6.1675
MANUAL LAND SYNOP 2M TEMPERATURE (K) 60714 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=8.9505, expected range: 0.0000 3.3944
MANUAL LAND SYNOP 2M TEMPERATURE (K) 67975 : out of range
Severe: rms_fgdepar=7.5832, expected range: -1.6489 3.2086
MANUAL LAND SYNOP 2M TEMPERATURE (K) 56106 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8404, expected range: 0.5363 0.9992
MANUAL LAND SYNOP 2M TEMPERATURE (K) 29766 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.5430, expected range: 0.0000 3.8110
METAR 2M TEMPERATURE (K) DTTB : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=8.4942, expected range: 0.0358 3.0357
METAR 2M TEMPERATURE (K) KFFO : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=12.8783, expected range: 0.0000 5.1436
LAND TEMP 2M TEMPERATURE (K) 04417 : out of range
3 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8377, expected range: -0.3063 1.4178
BUFR LAND SYNOP 2M TEMPERATURE (K) 04952 : out of range
Severe: rms_fgdepar=8.0076, expected range: 0.0000 4.5226
BUFR LAND SYNOP 2M TEMPERATURE (K) 23982 : out of range
Severe: rms_fgdepar=9.4287, expected range: 0.0000 5.1771
BUFR LAND SYNOP 2M TEMPERATURE (K) 64753 : out of range
Severe: rms_fgdepar=7.0913, expected range: 0.3988 4.0686
rh2m
BUFR LAND SYNOP RH2M (%) : out of range
Severe: obs_number=114.0000, expected range: 125.7547 137.0348