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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-07-26 00:00

cris
NOAA20 CRIS RADIANCES CHANNEL 1005 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0879, expected range: 0.1105 0.1217
mwhs2
FY-3D MWHS2 ALLSKY RADIANCES (5 channels affected) : out of range
Considerable: obs_number=31964.0000, expected range: 50783.4582 61152.7918
FY-3D MWHS2 ALLSKY RADIANCES CHANNEL 13 : out of range
Considerable: stdev_norm_fgdepar=0.5930, expected range: 0.6505 0.7620
FY-3D MWHS2 ALLSKY RADIANCES CHANNEL 14 : out of range
1 times in the last 10 days for at least one item
Considerable: stdev_norm_fgdepar=0.5720, expected range: 0.6233 0.7207
ssmis
DMSP-18 SSMIS RADIANCES CHANNEL 9 : missing
2 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 10170.5305 10170.5305
DMSP-18 SSMIS RADIANCES CHANNEL 10 : missing
2 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 13118.5957 13118.5957
DMSP-18 SSMIS RADIANCES CHANNEL 11 : missing
2 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 13121.5944 13121.5944
DMSP-17 SSMIS RADIANCES (5 channels affected) : out of range
19 times in the last 10 days for at least one item
Slight: obs_number=2636.0000, expected range: 13443.1038 13443.1038
Atmospheric Motion Vector
All AQUA MODIS CLEAR WV ALL LAYERS Global : all data missing
Severe: obs_number=0, expected range: 202.50 1715.20
Radiosondes
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 20 : all data missing
Severely_persistent: obs_number=0, expected range: 149.01 169.66
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 88 : all data missing
Severely_persistent: obs_number=0, expected range: 105.99 175.26
All HIGH RESO SEA TEMP ALL LAYERS North East Pacific : all data missing
Severely_persistent: obs_number=0, expected range: 151.48 332.92
LAND TEMP WIND VECTOR DIFF (M/S) 23078 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=17.9448, expected range: 0.0000 10.7632
Severe: avg_pge=0.8748, expected range: -0.9132 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 35229 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=15.6903, expected range: 0.0000 8.7070
HIGH RESO LAND TEMP TEMPERATURE (K) 57494 PRESSURE LAYER 900-1200 (HPA : out of range
Severe: rms_fgdepar=7.5828, expected range: 0.0000 2.7662
HIGH RESO LAND TEMP TEMPERATURE (K) 51656 PRESSURE LAYER 900-1200 (HPA : out of range
Severe: avg_pge=0.8660, expected range: -0.2784 0.7500
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 57494 PRESSURE LAYER 900-12 : out of range
Severe: avg_fgdepar=24.8388, expected range: -7.2933 12.3775
Severe: avg_pge=0.8832, expected range: -0.7283 0.7500
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (3 pressure layers affected : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=277.0000, expected range: 365.9048 382.5952
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : missing
Severe: obs_number=0.0000, expected range: 0.0000 285.3488
Severe: obs_number=0.0000, expected range: 3.1648 397.2985
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 48 : all data missing
Severe: obs_number=0, expected range: 137.96 180.04
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (2 pressure layers affected : out of range
Considerable: obs_number=573.0000, expected range: 652.9792 671.6875
amdar
WIGOS AMDAR TEMPERATURE (K) EU0133 PRESSURE LAYER 0-300 (HPA) : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8576, expected range: -1.4572 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) 2CEUNVJA PRESSURE LAYER 900-1200 (H : out of range
Severe: rms_fgdepar=15.1794, expected range: 0.0000 6.9488
MODE-S WIND VECTOR DIFF (M/S) M7C4F5B PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.7099, expected range: 0.0000 6.7034
ADS-C WIND VECTOR DIFF (M/S) JTYUC5BA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=65.3916, expected range: -1.7141 7.8822
Severe: rms_fgdepar=65.3916, expected range: 0.0000 8.4430
ADS-C WIND VECTOR DIFF (M/S) ESXCSSBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=23.1890, expected range: 0.0000 9.2772
ADS-C WIND VECTOR DIFF (M/S) JR2XLNJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.8539, expected range: 0.0000 7.6453
airep
AIREP WIND VECTOR DIFF (M/S) QTR958 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_pge=0.8008, expected range: -0.3785 0.5054
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 17952 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8187, expected range: -1.6960 0.7500
MANUAL LAND SYNOP Z (M) 38462 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8176, expected range: -0.8489 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 68821 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=50.8549, expected range: -71.4697 96.5336
Severe: rms_fgdepar=50.8549, expected range: -65.9558 93.1512
AUTOMATIC LAND SYNOP RH2M (%) 35331 : out of range
Severe: rms_fgdepar=41.2880, expected range: 0.0000 20.6180
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42961 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-654.9309, expected range: -327.9842 188.7360
Severe: rms_fgdepar=654.9309, expected range: 0.0000 273.8529
Severe: avg_pge=0.9091, expected range: -0.9011 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43017 : out of range
Severe: rms_fgdepar=548.2121, expected range: 0.0000 333.9106
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 89859 : out of range
Severe: avg_fgdepar=-515.6473, expected range: -199.6479 318.3380
Severe: rms_fgdepar=556.6767, expected range: 0.0000 296.9437
Severe: avg_pge=0.8131, expected range: -0.6799 0.7500
MANUAL LAND SYNOP RH2M (%) 76323 : out of range
Severe: avg_fgdepar=54.4639, expected range: -10.6169 43.8083
Severe: rms_fgdepar=54.4639, expected range: 0.0000 43.8083
Severe: avg_pge=0.9941, expected range: -0.8081 0.7500
BUFR LAND SYNOP Z (M) 06753 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8041, expected range: -0.7297 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 43271 : out of range
Severe: rms_fgdepar=370.2784, expected range: 0.0000 284.6739
Severe: avg_pge=0.8568, expected range: -0.8793 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71482 : out of range
Severe: rms_fgdepar=379.9816, expected range: 0.0000 202.5592
BUFR LAND SYNOP SURFACE PRESSURE (PA) 91682 : out of range
Severe: rms_fgdepar=303.8334, expected range: 0.0000 75.8260
Severe: avg_pge=0.8147, expected range: -0.0523 0.0616
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94333 : out of range
Severe: rms_fgdepar=323.9817, expected range: 0.0000 173.1759
Severe: avg_pge=0.8140, expected range: -0.8388 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71826 : out of range
Severe: rms_fgdepar=374.9239, expected range: 4.2175 289.7083
Severe: avg_pge=0.8099, expected range: -0.0863 0.7500
BUFR LAND SYNOP RH2M (%) 76412 : out of range
Severe: avg_pge=0.8070, expected range: -0.0539 0.0725
BUFR LAND SYNOP RH2M (%) 11032 : out of range
Severe: rms_fgdepar=30.1454, expected range: 0.0000 16.2310
BUFR LAND SYNOP RH2M (%) 35542 : out of range
Severe: rms_fgdepar=33.9086, expected range: 0.0000 10.6714
BUFR LAND SYNOP RH2M (%) 60033 : out of range
Severe: avg_pge=0.8320, expected range: -0.0489 0.0772
BUFR LAND SYNOP RH2M (%) 28748 : out of range
Severe: rms_fgdepar=39.3694, expected range: 0.0000 20.1841
BUFR LAND SYNOP RH2M (%) 71259 : out of range
Severe: rms_fgdepar=40.2279, expected range: 0.0000 21.6200
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V8838 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=743.9072, expected range: -442.5987 1757.2232
Severely_persistent: rms_fgdepar=743.9072, expected range: 0.0000 1448.1475
BUFR SHIP SYNOP SURFACE PRESSURE (PA) PJWM : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=552.9384, expected range: 458.9151 939.6535
Severely_persistent: rms_fgdepar=552.9384, expected range: 458.9151 939.6535
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VRCF6 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8246, expected range: -0.1587 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OXBD2 : out of range
Severe: rms_fgdepar=375.9058, expected range: 0.0000 185.2669
BUFR SHIP SYNOP SURFACE PRESSURE (PA) D5SD2 : out of range
Severe: rms_fgdepar=436.0912, expected range: 0.0000 223.7675
Severe: avg_pge=0.8042, expected range: -0.5230 0.5936
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRKB8 : out of range
Severe: rms_fgdepar=376.6155, expected range: 0.0000 190.8679
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRVQ9 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=547.8055, expected range: -613.0373 768.0602
Severe: rms_fgdepar=547.8055, expected range: 0.0000 772.2918
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 5401633 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-696.2402, expected range: -1095.6904 1085.6771
Severely_persistent: rms_fgdepar=697.2155, expected range: 0.0000 1077.5700
Severely_persistent: avg_pge=0.9255, expected range: -1.4704 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1401817 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8180, expected range: -1.0024 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2300593 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=392.4446, expected range: 136.9902 372.9488
Severe: avg_pge=0.8235, expected range: -0.4803 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6102804 : out of range
Severe: avg_fgdepar=-656.6236, expected range: -77.4561 33.4202
Severe: rms_fgdepar=656.6700, expected range: 0.0000 75.1285
Severe: avg_pge=0.9228, expected range: -0.0930 0.1258
DRIFTING BUOYS SURFACE PRESSURE (PA) 6301679 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-559.7635, expected range: -169.6579 134.1166
Severe: rms_fgdepar=599.0159, expected range: 0.0000 280.4808
snow
BUFR LAND SYNOP SNOW (CM) _MF1EB15 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-772.8368, expected range: -773.0136 -772.4277
BUFR LAND SYNOP SNOW (CM) _MF1EB15 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=772.8368, expected range: 772.4279 773.0135
t2m
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-19.5644, expected range: -20.1473 -17.4715
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=19.5644, expected range: 17.4736 20.1467
MANUAL LAND SYNOP 2M TEMPERATURE (K) 68722 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.2837, expected range: 0.0000 5.6794
METAR 2M TEMPERATURE (K) MMCB : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=12.7908, expected range: 0.0000 7.5851
METAR 2M TEMPERATURE (K) KCWF : out of range
Severe: rms_fgdepar=10.8753, expected range: 0.9177 3.2939
METAR 2M TEMPERATURE (K) KGXF : out of range
Severe: rms_fgdepar=10.8335, expected range: 0.0000 4.7625
METAR 2M TEMPERATURE (K) UGMS : out of range
Severe: rms_fgdepar=12.1664, expected range: 7.2322 12.2906
METAR 2M TEMPERATURE (K) KCXY : out of range
Severe: rms_fgdepar=11.1745, expected range: 1.2389 4.3861
LAND TEMP 2M TEMPERATURE (K) 72215 : out of range
Severe: avg_fgdepar=15.6248, expected range: -4.6511 5.6323
Severe: rms_fgdepar=15.6248, expected range: 0.0000 4.6546
LAND TEMP 2M TEMPERATURE (K) 89009 : out of range
Severe: avg_fgdepar=-12.0915, expected range: -12.1149 -5.2257
Severe: rms_fgdepar=12.0915, expected range: 5.2257 12.1149
BUFR LAND SYNOP 2M TEMPERATURE (K) 80010 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=13.1408, expected range: -6.3146 14.1758
Severe: rms_fgdepar=13.8828, expected range: 4.3935 12.0950
BUFR LAND SYNOP 2M TEMPERATURE (K) 22621 : out of range
Severe: rms_fgdepar=12.5939, expected range: 0.0000 2.2522
rh2m
MANUAL LAND SYNOP RH2M (%) 60740 : out of range
Severe: rms_fgdepar=33.1537, expected range: 0.0000 18.5032
MANUAL LAND SYNOP RH2M (%) 17290 : out of range
Severe: rms_fgdepar=30.3065, expected range: 0.0000 16.2198
MANUAL LAND SYNOP RH2M (%) 83011 : out of range
Severe: rms_fgdepar=38.2394, expected range: 0.0000 19.7901
MANUAL LAND SYNOP RH2M (%) 11766 : out of range
Severe: rms_fgdepar=36.8754, expected range: 0.0000 16.9142
MANUAL LAND SYNOP RH2M (%) 28748 : out of range
Severe: rms_fgdepar=35.3205, expected range: 0.0000 19.9881
METAR RH2M (%) SKMU : out of range
Severe: rms_fgdepar=34.3749, expected range: 0.0000 16.6862