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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2020-08-07 12:00

cris
NPP CRIS RADIANCES CHANNEL 109 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1615, expected range: 0.1408 0.1515
NPP CRIS RADIANCES CHANNEL 106 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2420, expected range: 0.2023 0.2195
NPP CRIS RADIANCES CHANNEL 107 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1874, expected range: 0.1486 0.1561
NPP CRIS RADIANCES CHANNEL 108 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1473, expected range: 0.1101 0.1190
NPP CRIS RADIANCES CHANNEL 119 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1874, expected range: 0.1487 0.1678
NOAA20 CRIS RADIANCES CHANNEL 119 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1754, expected range: 0.1454 0.1564
NOAA20 CRIS RADIANCES CHANNEL 107 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2115, expected range: 0.1798 0.1852
NOAA20 CRIS RADIANCES CHANNEL 108 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1764, expected range: 0.1421 0.1599
NOAA20 CRIS RADIANCES CHANNEL 991 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2729, expected range: 0.3005 0.3275
NOAA20 CRIS RADIANCES CHANNEL 993 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1834, expected range: 0.2157 0.2514
NPP CRIS RADIANCES CHANNEL 177 : out of range
Considerable: avg_biascorr=-0.0876, expected range: -0.0816 -0.0716
NOAA20 CRIS RADIANCES (148 channels affected) : out of range
Considerable: obs_number=6184.0000, expected range: 19449.9686 26291.0213
airs
AQUA AIRS RADIANCES CHANNEL 1948 : missing
5 times in the last 10 days for at least one item
Severely_persistent: obs_number=0.0000, expected range: 1692.9061 7009.6342
AQUA AIRS RADIANCES CHANNEL 2164 : missing
6 times in the last 10 days for at least one item
Severely_persistent: obs_number=0.0000, expected range: 632.0227 1994.4351
gpsro
All COSMIC2-E5 GPSRO RISING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 268.24 3255.42
COSMIC2-E2 GPSRO RISING HEIGHT 30-32 KM : out of range
Slight: stdev_norm_fgdepar=1.0519, expected range: 1.1122 1.3438
Atmospheric Motion Vector
HIMAWARI-8 AMV CLOUDY WV2 WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-60 : out of range
Considerable: avg_fgdepar=4.2855, expected range: 3.0910 3.7730
Geostationary CSR
HIMAWARI-8 AHI RADIANCES CHANNEL 4 : out of range
Considerable: avg_biascorr=-0.4054, expected range: -0.3741 -0.3119
Radiosondes
LAND TEMP TEMPERATURE (K) 61660 PRESSURE LAYER 0-300 (HPA) : out of range
32 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-15.3838, expected range: -18.5634 -12.1249
Severely_persistent: rms_fgdepar=22.1172, expected range: 18.8109 23.7033
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 26 : all data missing
Severely_persistent: obs_number=0, expected range: 81.70 140.80
LAND TEMP WIND VECTOR DIFF (M/S) 44373 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=24.4182, expected range: 0.3696 6.0423
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : missing
1 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 3.2606 399.1394
Severe: obs_number=0.0000, expected range: 0.0000 322.3909
Considerable: obs_number=96.0000, expected range: 153.5963 218.4037
HIGH RESO LAND TEMP Q (G/KG) 76256 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=5.2069, expected range: 0.5976 2.1074
HIGH RESO LAND TEMP Q (G/KG) 72659 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_fgdepar=-6.1678, expected range: -2.0819 1.3784
HIGH RESO LAND TEMP Q (G/KG) 72659 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=6.2705, expected range: 0.0000 2.7827
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: obs_number=61.0000, expected range: 88.9265 125.2735
LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
Considerable: obs_number=84.0000, expected range: 44.3420 67.9080
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: obs_number=208.0000, expected range: 21.8469 85.4865
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 300-600 (HPA) : out of range
Considerable: obs_number=158.0000, expected range: 176.0000 196.0000
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 900-1200 (HPA) : out of range
Considerable: rms_fgdepar=2.2511, expected range: 0.0000 1.4659
amdar
AMDAR TEMPERATURE (K) CNFKQP PRESSURE LAYER 600-900 (HPA) : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-9.9865, expected range: -23.6661 8.9712
Severely_persistent: rms_fgdepar=10.9497, expected range: 0.0000 25.2921
AMDAR WIND VECTOR DIFF (M/S) BR436594 PRESSURE LAYER 0-300 (HPA) : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=28.4581, expected range: -6.2746 38.4555
Severely_persistent: rms_fgdepar=28.4581, expected range: 0.0000 39.9174
Severely_persistent: avg_pge=0.8791, expected range: -0.0133 0.7500
WIGOS AMDAR TEMPERATURE (K) EU0758 PRESSURE LAYER 0-300 (HPA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8153, expected range: 0.6477 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) YFYEIRRA (3 pressure layers affecte : out of range
Severe: rms_fgdepar=15.1046, expected range: 0.0000 7.3598
WIGOS AMDAR WIND VECTOR DIFF (M/S) L5RUIRZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.2942, expected range: 0.0000 7.7819
WIGOS AMDAR WIND VECTOR DIFF (M/S) VJ3H1DBA (2 pressure layers affecte : out of range
Severe: avg_pge=0.8605, expected range: -1.4845 0.7500
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43012 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8011, expected range: 0.4512 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42834 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8151, expected range: -1.4518 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 91425 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8088, expected range: -1.5184 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 91682 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8182, expected range: -0.3068 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 55664 : out of range
30 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-652.5540, expected range: -1689.1964 757.8034
Severely_persistent: rms_fgdepar=687.7560, expected range: 0.0000 1790.8518
Severely_persistent: avg_pge=0.8758, expected range: -1.3085 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 72327 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8706, expected range: 0.8557 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43017 : out of range
Severe: avg_fgdepar=920.8925, expected range: -436.6032 365.3338
Severe: rms_fgdepar=920.8925, expected range: 0.0000 356.8080
Severe: avg_pge=0.9386, expected range: -0.8411 0.7500
MANUAL LAND SYNOP RH2M (%) 80410 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=56.2486, expected range: -82.7720 136.1117
Severe: rms_fgdepar=56.2486, expected range: 0.0000 136.1723
Severe: avg_pge=0.9999, expected range: -1.7601 0.7500
MANUAL LAND SYNOP RH2M (%) 66285 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9702, expected range: -0.8743 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 88963 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=354.8206, expected range: 0.0000 192.0798
BUFR LAND SYNOP SURFACE PRESSURE (PA) 30439 : out of range
Severe: rms_fgdepar=520.7893, expected range: 0.0000 119.7022
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
Considerable: obs_number=131.0000, expected range: 195.9149 280.3351
ship
SHIP SURFACE PRESSURE (PA) OVXO2 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-899.6352, expected range: -1383.0061 -491.1843
Severely_persistent: rms_fgdepar=899.6352, expected range: 491.1843 1383.0061
SHIP SURFACE PRESSURE (PA) VRJT5 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=731.5383, expected range: -1371.4907 2351.9315
Severely_persistent: rms_fgdepar=731.5383, expected range: 0.0000 2199.8967
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OVXO2 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-899.6352, expected range: -1383.0061 -491.1843
Severely_persistent: rms_fgdepar=899.6352, expected range: 491.1843 1383.0061
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRJT5 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=731.5383, expected range: -1371.9059 2237.7106
Severely_persistent: rms_fgdepar=731.5383, expected range: 0.0000 2152.7498
Severely_persistent: avg_pge=0.8716, expected range: -1.2159 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 2IYH2 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8732, expected range: 0.3444 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9HA3474 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8218, expected range: -1.2259 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) ZDNC5 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8211, expected range: -0.9988 0.7500
SHIP SURFACE PRESSURE (PA) VRKK2 : out of range
Severe: avg_fgdepar=-1201.8032, expected range: -755.3080 654.9650
Severe: rms_fgdepar=1201.8032, expected range: 0.0000 572.5044
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRKK2 : out of range
Severe: avg_fgdepar=-1201.8032, expected range: -857.6518 705.9064
Severe: rms_fgdepar=1201.8032, expected range: 0.0000 634.0946
Severe: avg_pge=0.9275, expected range: -1.1211 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRLT9 : out of range
Severe: rms_fgdepar=360.7407, expected range: 0.0000 173.9613
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) D5KQ2 : out of range
Severe: rms_fgdepar=19.5897, expected range: 0.0000 9.9515
Severe: avg_pge=0.8092, expected range: -1.1476 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) V7BN6 : out of range
Severe: rms_fgdepar=15.2135, expected range: 0.0000 9.4595
Severe: avg_pge=0.8751, expected range: -1.0417 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 1601531 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8400, expected range: 0.0228 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1501748 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=544.8114, expected range: -1395.7198 1174.2950
Severely_persistent: rms_fgdepar=555.4148, expected range: 0.0000 1004.5925
Severely_persistent: avg_pge=0.8893, expected range: 0.0193 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 3301601 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8184, expected range: -0.2445 0.3459
DRIFTING BUOYS SURFACE PRESSURE (PA) 5601521 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-602.0439, expected range: -108.3173 30.3621
Severe: rms_fgdepar=604.7477, expected range: 0.0000 98.4266
Severe: avg_pge=0.9140, expected range: -0.0985 0.1450
metar
METAR SURFACE PRESSURE (PA) OISF : out of range
Severe: rms_fgdepar=331.5439, expected range: 0.0000 126.3632
METAR SURFACE PRESSURE (PA) OIBL : out of range
Severe: rms_fgdepar=484.5674, expected range: 0.0000 146.1403
METAR SURFACE PRESSURE (PA) FNCT : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=352.1805, expected range: 0.0000 130.5329
METAR SURFACE PRESSURE (PA) AYPY : out of range
Severe: rms_fgdepar=363.7851, expected range: 0.0000 92.5662
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8015, expected range: 0.5632 0.9290
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89055 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.4847, expected range: -14.5959 9.1534
Severely_persistent: rms_fgdepar=13.5413, expected range: 0.0000 14.8654
LAND TEMP 2M TEMPERATURE (K) 72376 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8029, expected range: -0.3560 1.4031
LAND TEMP 2M TEMPERATURE (K) 56029 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8262, expected range: -0.0995 1.3258
BUFR LAND SYNOP 2M TEMPERATURE (K) 27415 : out of range
36 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-17.4980, expected range: -21.6815 -11.8993
Severely_persistent: rms_fgdepar=17.4980, expected range: 12.5777 21.7242
BUFR LAND SYNOP 2M TEMPERATURE (K) 89055 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.4016, expected range: -14.3517 8.5256
Severely_persistent: rms_fgdepar=13.4610, expected range: 0.0000 15.2468
BUFR LAND SYNOP 2M TEMPERATURE (K) 89507 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8169, expected range: 0.5161 0.8670
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89734 : out of range
4 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8120, expected range: 0.4967 0.9604
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 51656 : out of range
Severe: avg_fgdepar=-12.2035, expected range: -20.3481 14.8867
Severe: rms_fgdepar=12.2035, expected range: 0.0000 15.1511
Severe: avg_est_pge=0.8032, expected range: -0.1650 1.2269
MANUAL LAND SYNOP 2M TEMPERATURE (K) 25904 : out of range
Severe: avg_fgdepar=-12.1403, expected range: -13.9004 12.4231
Severe: rms_fgdepar=12.3169, expected range: 0.0000 12.3515
METAR 2M TEMPERATURE (K) KNKT : out of range
Severe: rms_fgdepar=11.0910, expected range: 0.0000 4.4820
BUFR LAND SYNOP 2M TEMPERATURE (K) 85504 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=14.3967, expected range: -1.5196 4.0242
Severe: rms_fgdepar=14.6371, expected range: 0.2575 5.3587
Severe: avg_est_pge=0.8035, expected range: -0.0500 0.3204
BUFR LAND SYNOP 2M TEMPERATURE (K) 25904 : out of range
Severe: avg_fgdepar=-12.1903, expected range: -13.9504 12.3731
Severe: rms_fgdepar=12.3662, expected range: 0.0000 12.4118