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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-08-11 00:00

iasi
METOP-A/IASI RADIANCES (226 channels affected) : out of range
Severe: obs_number=118795.0000, expected range: 17837.7390 26736.3474
cris
NPP/CRIS RADIANCES (118 channels affected) : out of range
Severe: avg_biascorr=0.2585, expected range: 0.0439 0.2148
NPP/CRIS RADIANCES (166 channels affected) : out of range
Severe: obs_number=16133.0000, expected range: 5756.7637 8397.4073
NPP/CRIS RADIANCES (28 channels affected) : out of range
Severe: stdev_fgdepar=3.3272, expected range: 0.1915 0.2784
NPP/CRIS RADIANCES (15 channels affected) : out of range
Severe: avg_fgdepar=-0.6591, expected range: -0.1188 0.1434
ssmis
DMSP-18/SSMIS RADIANCES CHANNEL 6 : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=1678.0000, expected range: 300.2430 1351.7935
DMSP-18/SSMIS RADIANCES CHANNEL 7 : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=1680.0000, expected range: 304.2810 1322.8126
DMSP-18/SSMIS RADIANCES CHANNEL 10 : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=1660.0000, expected range: 300.5240 1340.3012
DMSP-18/SSMIS RADIANCES CHANNEL 11 : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=1660.0000, expected range: 301.0499 1297.8109
Atmospheric Motion Vector
8059 IR WIND VECTOR DIFF (M/S) PRESSURE LAYER 600-900 (HPA) : out of range
Slight: stdev_fgdepar=2.0547, expected range: 1.6919 2.0106
Radiosondes
LAND TEMP TEMPERATURE (K) 30372 PRESSURE LAYER 900-1200 (HPA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9055, expected range: -1.1754 0.7500
HIGH RESO LAND TEMP TEMPERATURE (K) (4 pressure layers affected) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0000, expected range: 0.1180 0.2240
HIGH RESO LAND TEMP TEMPERATURE (K) (3 pressure layers affected) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: obs_number=186.0000, expected range: 253.5805 309.0445
LAND TEMP TEMPERATURE (K) 24122 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=15.3558, expected range: 0.0000 3.2317
LAND TEMP TEMPERATURE (K) 24122 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_pge=0.9405, expected range: -0.2159 0.3140
LAND TEMP TEMPERATURE (K) 42724 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=18.2838, expected range: 0.0000 4.7907
Severe: avg_pge=0.9077, expected range: -0.1876 0.3745
LAND TEMP TEMPERATURE (K) 30557 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=6.9440, expected range: 0.0000 1.6002
LAND TEMP TEMPERATURE (K) 38341 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8557, expected range: -0.7173 0.7500
HIGH RESO LAND TEMP TEMPERATURE (K) 47104 PRESSURE LAYER 900-1200 (HPA : out of range
Severe: rms_fgdepar=8.0287, expected range: 0.0000 3.3308
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (3 pressure layers affected : out of range
Severe: obs_number=186.0000, expected range: 253.5805 309.0445
All HIGH RESO SEA TEMP Q (G/KG) ALL LAYERS North Atlantic : all data missing
Severe: obs_number=0, expected range: 0.00 158.75
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
Slight: avg_fgdepar=0.0148, expected range: -0.0100 0.0084
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) BTSX1DZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=24.4793, expected range: 0.0000 15.9977
Severe: avg_pge=0.8654, expected range: -0.9254 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) 44OENWZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.8606, expected range: 0.0000 8.4102
Severe: avg_pge=0.8074, expected range: -0.3005 0.3976
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 10440 PRESSURE LAYER 600-900 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=15.7520, expected range: 0.0000 8.0774
Severe: avg_pge=0.8582, expected range: -0.6181 0.7500
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 10605 PRESSURE LAYER 600-900 : out of range
Severe: avg_pge=0.8686, expected range: -0.7713 0.7500
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 10339 PRESSURE LAYER 600-900 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=17.1028, expected range: 0.0000 10.6729
Severe: avg_pge=0.8629, expected range: -0.7024 0.7500
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 10169 PRESSURE LAYER 600-900 : out of range
Severe: rms_fgdepar=17.7453, expected range: 0.0000 13.2594
Severe: avg_pge=0.8879, expected range: -0.3983 0.7500
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42711 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8044, expected range: -1.4042 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43021 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8311, expected range: -1.3919 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43133 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9011, expected range: 0.2913 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42705 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8640, expected range: -0.5836 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42078 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8997, expected range: -0.7152 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42969 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8267, expected range: -1.4939 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 89059 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=349.4045, expected range: 0.0000 307.5098
Severe: avg_pge=0.8550, expected range: -0.6777 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 58150 : out of range
Severe: rms_fgdepar=307.7833, expected range: 0.0000 159.0577
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40632 : out of range
Severe: rms_fgdepar=690.8333, expected range: 0.0000 243.8561
Severe: avg_pge=0.9137, expected range: -0.7998 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 76113 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8054, expected range: -0.8774 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42744 : out of range
Severe: rms_fgdepar=486.7246, expected range: 0.0000 260.5719
Severe: avg_pge=0.8943, expected range: -1.1083 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83844 : out of range
Severe: avg_pge=0.9121, expected range: -1.1383 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42654 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=991.6755, expected range: 0.0000 218.3908
Severe: avg_pge=0.9449, expected range: -0.8939 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 60686 : out of range
Severe: rms_fgdepar=363.1214, expected range: 0.0000 285.0853
Severe: avg_pge=0.8566, expected range: -0.8112 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42948 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8376, expected range: -0.9780 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42469 : out of range
Severe: rms_fgdepar=403.0176, expected range: 0.0000 226.3872
Severe: avg_pge=0.8596, expected range: -0.8982 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42679 : out of range
Severe: rms_fgdepar=1003.0829, expected range: 0.0000 294.0465
Severe: avg_pge=0.9415, expected range: -0.8197 0.7500
MANUAL LAND SYNOP RH2M (%) 40310 : out of range
Severe: avg_pge=0.8415, expected range: -0.4577 0.5283
MANUAL LAND SYNOP RH2M (%) 62435 : out of range
Severe: rms_fgdepar=16.7213, expected range: 0.0000 5.9105
MANUAL LAND SYNOP RH2M (%) 40016 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9651, expected range: -1.7208 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94866 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=334.4795, expected range: 0.0000 162.7077
BUFR LAND SYNOP RH2M (%) 71660 : out of range
Severe: rms_fgdepar=44.9905, expected range: 0.0000 38.8173
Severe: avg_pge=0.9519, expected range: -0.0818 0.1053
BUFR LAND SYNOP RH2M (%) 71880 : out of range
Severe: rms_fgdepar=40.8806, expected range: 0.0000 33.9491
Severe: avg_pge=0.8250, expected range: -0.0471 0.0610
BUFR LAND SYNOP RH2M (%) 72683 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=20.8958, expected range: 0.0000 9.6439
BUFR LAND SYNOP RH2M (%) 16084 : out of range
Severe: avg_pge=0.8930, expected range: -1.2378 0.7500
BUFR LAND SYNOP RH2M (%) 71855 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9696, expected range: -1.5901 0.7500
BUFR LAND SYNOP RH2M (%) 72666 : out of range
Severe: rms_fgdepar=41.5053, expected range: 0.0000 23.0749
BUFR LAND SYNOP RH2M (%) 72776 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=27.4401, expected range: 0.0000 8.6551
BUFR LAND SYNOP RH2M (%) 72217 : out of range
Severe: rms_fgdepar=15.6745, expected range: 0.0000 29.1523
BUFR LAND SYNOP RH2M (%) 72677 : out of range
Severe: rms_fgdepar=29.6748, expected range: 0.0000 15.7056
ship
AUTOMATIC SHIP SURFACE PRESSURE (PA) 8TAP : out of range
8 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=753.2621, expected range: -419.2983 610.4049
Severely_persistent: avg_pge=0.9364, expected range: -1.3439 0.7500
SHIP WIND VECTOR DIFF (M/S) C6DP7 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8996, expected range: -0.6900 0.7500
SHIP WIND VECTOR DIFF (M/S) VRBR8 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8945, expected range: -1.3147 0.7500
SHIP WIND VECTOR DIFF (M/S) BPBC : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8914, expected range: -0.1852 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) AUZY : out of range
Severe: avg_pge=0.8020, expected range: -0.6457 0.7500
SHIP SURFACE PRESSURE (PA) TBWUK31 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8309, expected range: -1.0398 0.7500
SHIP SURFACE PRESSURE (PA) C6BQ4 : out of range
Severe: avg_pge=0.8798, expected range: -1.1180 0.7500
SHIP SURFACE PRESSURE (PA) ZCDM6 : out of range
Severe: avg_pge=0.8666, expected range: -1.2756 0.7500
SHIP SURFACE PRESSURE (PA) LAQQ7 : out of range
Severe: avg_pge=0.8671, expected range: -1.0452 0.7500
SHIP WIND VECTOR DIFF (M/S) VRRA4 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8235, expected range: -0.6313 0.7500
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 1500001 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8402, expected range: 0.4704 0.7500
MOORED BUOYS WIND VECTOR DIFF (M/S) 3100231 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9320, expected range: 0.4133 0.7500
MOORED BUOYS WIND VECTOR DIFF (M/S) 5300056 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9213, expected range: 0.7356 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2201558 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8007, expected range: -1.4679 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1601579 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8588, expected range: 0.0230 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4801612 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=562.8274, expected range: 0.0000 144.9155
Severe: avg_pge=0.8909, expected range: -0.1531 0.1879
DRIFTING BUOYS SURFACE PRESSURE (PA) 6400528 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=325.7670, expected range: -161.2296 229.1457
Severe: avg_pge=0.8296, expected range: -0.9330 0.7500
metar
AUTOMATIC METAR SURFACE PRESSURE (PA) : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-395.0000, expected range: 0.0000 0.0000
METAR SURFACE PRESSURE (PA) RJAW : out of range
Severe: rms_fgdepar=364.4563, expected range: 0.0000 132.6459
METAR SURFACE PRESSURE (PA) VECX : out of range
Severe: avg_pge=0.8336, expected range: -0.8324 0.7500
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89734 : out of range
3 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8634, expected range: 0.5036 0.9905
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71918 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=11.6524, expected range: 0.0376 3.7732
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89799 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8089, expected range: 0.2424 1.0581
MANUAL LAND SYNOP 2M TEMPERATURE (K) 83781 : out of range
Severe: rms_fgdepar=7.0520, expected range: 0.0000 3.4583
MANUAL LAND SYNOP 2M TEMPERATURE (K) 67243 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=8.9285, expected range: 0.0000 2.7601
MANUAL LAND SYNOP 2M TEMPERATURE (K) 83319 : out of range
Severe: rms_fgdepar=13.0932, expected range: 0.0000 6.7329
METAR 2M TEMPERATURE (K) UWKD : out of range
Severe: rms_fgdepar=7.5644, expected range: 0.0000 3.3255
METAR 2M TEMPERATURE (K) USTR : out of range
Severe: rms_fgdepar=7.3759, expected range: 0.0000 3.4194
LAND TEMP 2M TEMPERATURE (K) 22522 : out of range
Severe: rms_fgdepar=7.5264, expected range: 0.0000 2.8809
BUFR LAND SYNOP 2M TEMPERATURE (K) 08026 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=17.6228, expected range: 0.1345 5.1002
Severe: avg_est_pge=0.8364, expected range: -0.1382 0.4586