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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-08-14 12:00

amsua
METOP-C/AMSUA RADIANCES CHANNEL 7 : out of range
1 times in the last 10 days for at least one item
Severe: stdev_fgdepar=0.3626, expected range: 0.1443 0.1607
NOAA-19/AMSUA RADIANCES CHANNEL 9 : out of range
1 times in the last 10 days for at least one item
Considerable: avg_biascorr=0.0383, expected range: 0.0606 0.1150
cris
NPP/CRIS RADIANCES (121 channels affected) : out of range
2 times in the last 10 days for at least one item
Severe: avg_biascorr=0.2578, expected range: 0.0696 0.2148
NPP/CRIS RADIANCES (148 channels affected) : out of range
Severe: obs_number=8941.0000, expected range: 4351.8278 6275.4324
NPP/CRIS RADIANCES (26 channels affected) : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=0.3817, expected range: -0.0527 0.0714
NPP/CRIS RADIANCES (22 channels affected) : out of range
Severe: stdev_fgdepar=3.1795, expected range: 0.1915 0.2784
Atmospheric Motion Vector
GOES-15/AMV CLOUDY WV3 WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 ( : out of range
Considerable: obs_number=557.0000, expected range: 0.0000 439.8807
Geostationary CSR
GOES-15/IMAGER RADIANCES CHANNEL 3 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-0.8668, expected range: -0.1837 0.2844
GOES-15/IMAGER RADIANCES CHANNEL 2 : out of range
Slight: avg_fgdepar=-1.3754, expected range: -1.0265 0.9698
Radiosondes
LAND TEMP TEMPERATURE (K) 30054 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=9.3531, expected range: 0.0000 2.7056
Severe: avg_pge=0.8558, expected range: -0.3038 0.4751
LAND TEMP TEMPERATURE (K) 20674 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=19.6048, expected range: 0.0000 4.0564
Severe: avg_pge=0.9585, expected range: -0.5095 0.7500
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.4408, expected range: 0.6673 1.8352
LAND TEMP WIND VECTOR DIFF (M/S) 20674 PRESSURE LAYER 600-900 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=23.3616, expected range: 0.0000 5.6615
Severe: avg_pge=0.8624, expected range: -0.8840 0.7500
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=192.0000, expected range: 277.4369 297.0075
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=132.0000, expected range: 193.6174 204.0493
amdar
WIGOS AMDAR TEMPERATURE (K) EU3824 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=7.4071, expected range: 0.0000 2.1632
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU8528 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.2244, expected range: 0.0000 8.2449
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: obs_number=21.0000, expected range: 54.5630 92.8814
Severely_persistent: avg_biascorr=104.7619, expected range: 0.0000 0.0000
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42408 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9152, expected range: -1.4572 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 36090 : out of range
Severe: rms_fgdepar=508.9084, expected range: 0.0000 200.1418
Severe: avg_pge=0.8976, expected range: -0.8305 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 37308 : out of range
Severe: avg_pge=0.8535, expected range: -0.3023 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 36090 : out of range
Severe: rms_fgdepar=426.1739, expected range: 0.0000 214.3572
Severe: avg_pge=0.8480, expected range: -0.6181 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 91425 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=872.7698, expected range: 0.0000 98.8423
Severe: avg_pge=0.9362, expected range: -0.7705 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 86255 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8831, expected range: -0.7537 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83698 : out of range
Severe: rms_fgdepar=362.5853, expected range: 0.0000 326.1306
Severe: avg_pge=0.8422, expected range: -0.9911 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83749 : out of range
Severe: rms_fgdepar=691.9628, expected range: 0.0000 116.5142
MANUAL LAND SYNOP RH2M (%) 76040 : out of range
Severe: avg_pge=0.9998, expected range: -1.1775 0.7500
MANUAL LAND SYNOP RH2M (%) 76471 : out of range
Severe: rms_fgdepar=35.3468, expected range: 0.0000 12.8441
MANUAL LAND SYNOP RH2M (%) 40691 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=30.9087, expected range: 0.0000 14.1511
MANUAL LAND SYNOP RH2M (%) 51656 : out of range
Severe: avg_pge=0.9724, expected range: -0.8284 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 28240 : out of range
Severe: rms_fgdepar=574.0156, expected range: 0.0000 402.3995
Severe: avg_pge=0.8936, expected range: -0.9069 0.7500
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=0.9177, expected range: -0.7517 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 25147 : out of range
Severe: rms_fgdepar=383.7138, expected range: 0.0000 161.7722
BUFR LAND SYNOP RH2M (%) 02720 : out of range
Severe: rms_fgdepar=28.7050, expected range: 0.0000 15.6439
BUFR LAND SYNOP RH2M (%) 29802 : out of range
Severe: rms_fgdepar=39.2318, expected range: 0.0000 19.5942
BUFR LAND SYNOP RH2M (%) 81737 : out of range
Severe: avg_pge=0.9674, expected range: -0.4209 0.7500
ship
AUTOMATIC SHIP SURFACE PRESSURE (PA) ATVK : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=819.2015, expected range: 0.0000 189.5139
Severely_persistent: avg_pge=0.9281, expected range: -1.0029 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) LF4J : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8205, expected range: 0.0750 0.7500
SHIP SURFACE PRESSURE (PA) 9HA3731 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8480, expected range: -1.1774 0.7500
SHIP SURFACE PRESSURE (PA) DGZR2 : out of range
Severe: rms_fgdepar=941.3640, expected range: 0.0000 236.1091
Severe: avg_pge=0.9314, expected range: -0.8535 0.7500
SHIP SURFACE PRESSURE (PA) 9VFL3 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=418.5279, expected range: 0.0000 370.0220
Severe: avg_pge=0.8181, expected range: -1.0632 0.7500
SHIP SURFACE PRESSURE (PA) BQHZ : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=1003.7735, expected range: -482.0250 702.7938
Severe: avg_pge=0.9334, expected range: -0.9918 0.7500
SHIP WIND VECTOR DIFF (M/S) TBWUK86 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9321, expected range: -0.9974 0.7500
SHIP WIND VECTOR DIFF (M/S) 3FZO8 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=17.6740, expected range: 0.0000 11.0113
Severe: avg_pge=0.8962, expected range: -0.4221 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) : out of range
3 times in the last 10 days for at least one item
Slight: obs_number=4436.0000, expected range: 3887.5284 4282.1939
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
3 times in the last 10 days for at least one item
Severe: avg_biascorr=5.4545, expected range: 0.0000 0.0000
metar
METAR SURFACE PRESSURE (PA) SBME : out of range
Severe: rms_fgdepar=333.1525, expected range: 0.0000 157.3663
METAR SURFACE PRESSURE (PA) LTCR : out of range
Severe: avg_pge=0.8108, expected range: 0.5916 0.7500
METAR SURFACE PRESSURE (PA) LIRT : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=611.6827, expected range: 0.0000 153.2289
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=0.8227, expected range: 0.6970 0.9032
LAND TEMP 2M TEMPERATURE (K) 56137 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8247, expected range: -0.0666 1.2790
BUFR LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8202, expected range: 0.7038 0.9008
MANUAL LAND SYNOP 2M TEMPERATURE (K) 40691 : out of range
Severe: rms_fgdepar=7.7111, expected range: 0.0000 3.8192
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89606 : out of range
Severe: avg_est_pge=0.8136, expected range: -0.1162 1.3115
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89009 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8131, expected range: 0.3055 1.1175
METAR 2M TEMPERATURE (K) RKSG : out of range
Severe: rms_fgdepar=7.9642, expected range: 0.3048 3.4862
METAR 2M TEMPERATURE (K) UGMS : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8101, expected range: 0.3730 1.0070
LAND TEMP 2M TEMPERATURE (K) 72376 : out of range
2 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8057, expected range: -0.4617 1.3388
BUFR LAND SYNOP 2M TEMPERATURE (K) 89606 : out of range
Severe: avg_est_pge=0.8169, expected range: -0.1191 1.3111