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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-06-24 00:00

amsua
METOP-B AMSUA ALL SKY RADIANCES CHANNEL 13 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1035, expected range: 0.1615 0.1873
METOP-C AMSUA ALL SKY RADIANCES CHANNEL 13 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.4022, expected range: -0.3521 -0.3094
ssmis
DMSP-17 SSMIS RADIANCES CHANNEL 7 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: stdev_norm_fgdepar=0.0052, expected range: 0.0043 0.0047
DMSP-18 SSMIS RADIANCES CHANNEL 10 : out of range
Slight: obs_number=20178.0000, expected range: 21118.3011 23744.9489
DMSP-18 SSMIS RADIANCES CHANNEL 11 : out of range
Slight: obs_number=20161.0000, expected range: 21095.0646 23838.9354
Atmospheric Motion Vector
AQUA MODIS CLEAR WV WIND VECTOR DIFF (M/S) (2 pressure layers affected : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=282.0000, expected range: 12.5419 98.3857
Geostationary CSR
HIMAWARI-8 AHI RADIANCES CHANNEL 3 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1736, expected range: -0.0308 0.0597
Radiosondes
LAND TEMP Q (G/KG) 72747 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=4.2626, expected range: 0.0000 2.3756
LAND TEMP Q (G/KG) 41169 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.2582, expected range: 0.0000 5.2112
LAND TEMP TEMPERATURE (K) 16754 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=10.7409, expected range: 0.7541 1.8194
LAND TEMP TEMPERATURE (K) 83378 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=7.2470, expected range: 0.6620 1.7642
LAND TEMP TEMPERATURE (K) 23078 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=7.0195, expected range: 0.0000 1.7614
LAND TEMP WIND VECTOR DIFF (M/S) 21946 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=18.8981, expected range: 0.0715 3.6514
Severe: avg_pge=0.8391, expected range: -0.4697 0.5549
All LAND TEMP ALL LAYERS WMO BLOCK 71 : all data missing
Severe: obs_number=0, expected range: 0.00 276.82
HIGH RESO LAND TEMP Q (G/KG) 56046 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.6676, expected range: 0.0000 1.3859
HIGH RESO LAND TEMP Q (G/KG) 47186 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.3448, expected range: 0.5274 1.9552
HIGH RESO LAND TEMP Q (G/KG) 71722 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=4.9477, expected range: 0.0000 1.9993
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=1.3183, expected range: 0.5835 0.9550
All HIGH RESO SEA TEMP ALL LAYERS North East Pacific : all data missing
Severe: obs_number=0, expected range: 0.00 520.22
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU4593 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=15.9377, expected range: 0.0000 7.8841
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU0434 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=16.2909, expected range: 0.0000 8.6050
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU7057 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=18.6010, expected range: 0.0000 8.3740
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU5319 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=16.7705, expected range: 0.0000 7.4075
Severe: avg_pge=0.8094, expected range: -0.3844 0.5695
MODE-S WIND VECTOR DIFF (M/S) MDB3CEE PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=15.2400, expected range: 0.0000 7.6490
ADS-C WIND VECTOR DIFF (M/S) GY0KM3BA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=16.1274, expected range: 0.0757 7.8015
synop
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41573 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=900.1841, expected range: 260.7525 1401.8659
Severely_persistent: rms_fgdepar=901.9194, expected range: 273.5062 1395.1515
AUTOMATIC LAND SYNOP RH2M (%) 34498 : out of range
Severe: rms_fgdepar=35.1417, expected range: 0.0000 14.0992
Severe: avg_pge=0.9593, expected range: 0.0005 0.0055
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 47639 : out of range
Severe: rms_fgdepar=330.2445, expected range: 0.0000 162.8929
MANUAL LAND SYNOP RH2M (%) 41710 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=30.9485, expected range: 0.0000 8.0074
MANUAL LAND SYNOP RH2M (%) 41712 : out of range
Severe: rms_fgdepar=33.1143, expected range: 0.0000 10.7022
Severe: rms_fgdepar=36.5104, expected range: 0.0000 16.6356
MANUAL LAND SYNOP RH2M (%) 16597 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9997, expected range: -0.9262 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 47050 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=431.9014, expected range: 0.0000 164.7303
Severe: avg_pge=0.8322, expected range: -0.2453 0.3072
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 62062 : out of range
Severe: rms_fgdepar=305.4045, expected range: 45.2852 136.1465
Severe: avg_pge=0.8063, expected range: -0.2558 0.6694
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40769 : out of range
Severe: rms_fgdepar=333.1005, expected range: 0.0000 101.9683
BUFR LAND SYNOP RH2M (%) 42771 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8223, expected range: -1.8780 0.7500
BUFR LAND SYNOP RH2M (%) 24871 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8606, expected range: -1.5916 0.7500
BUFR LAND SYNOP RH2M (%) 71528 : out of range
Severe: rms_fgdepar=34.0155, expected range: 1.2754 16.0113
BUFR LAND SYNOP RH2M (%) 40439 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=52.7875, expected range: -7.9682 75.1355
Severe: rms_fgdepar=53.2651, expected range: 0.0000 74.5611
Severe: avg_pge=0.9997, expected range: -1.2677 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 43097 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=316.9068, expected range: 0.0000 169.7794
ship
SHIP WIND VECTOR DIFF (M/S) : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9531, expected range: -0.5681 0.7500
Severely_persistent: avg_pge=0.9531, expected range: -0.0448 0.7500
SHIP WIND VECTOR DIFF (M/S) VRKX7 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=33.3326, expected range: -22.0604 54.8901
Severely_persistent: rms_fgdepar=33.3326, expected range: 0.0000 55.2937
Severely_persistent: avg_pge=0.9531, expected range: -0.5681 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9HA3182 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=25.3238, expected range: -3.8073 32.1051
Severely_persistent: rms_fgdepar=25.4204, expected range: 0.0000 32.1173
Severely_persistent: avg_pge=0.9331, expected range: 0.4921 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) D5NK2 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8364, expected range: -0.7222 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9VPY4 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=929.8904, expected range: 135.4353 1270.8129
Severely_persistent: rms_fgdepar=932.9045, expected range: 135.4353 1270.8129
Severely_persistent: avg_pge=0.8942, expected range: 0.6339 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HA4777 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=854.7171, expected range: 44.3854 1164.4390
Severely_persistent: rms_fgdepar=854.7171, expected range: 44.3854 1164.4390
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3FSA9 : out of range
39 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-559.7136, expected range: -840.6742 -261.8448
Severely_persistent: rms_fgdepar=559.7136, expected range: 263.0491 840.4038
BUFR SHIP SYNOP SURFACE PRESSURE (PA) H8EW : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=990.4127, expected range: 53.2546 1877.7171
Severely_persistent: rms_fgdepar=991.4713, expected range: 46.3678 1887.6238
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) EUMDE06 : out of range
Severe: rms_fgdepar=15.0154, expected range: 1.4075 7.5290
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9V8197 : out of range
Severe: avg_pge=0.8938, expected range: -0.5173 0.7500
All BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) WMO BLOCK 8 : all data missing
Severe: obs_number=0, expected range: 123.89 179.97
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HA3182 : out of range
Severe: rms_fgdepar=643.1215, expected range: 0.0000 813.1263
BUFR SHIP SYNOP SURFACE PRESSURE (PA) ZCHC8 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=501.9563, expected range: 111.2344 788.4665
Severe: rms_fgdepar=501.9563, expected range: 111.2344 788.4665
BUFR SHIP SYNOP SURFACE PRESSURE (PA) TBWUK89 : out of range
Severe: rms_fgdepar=570.5860, expected range: 0.0000 417.0761
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WAZV : out of range
Severe: avg_fgdepar=771.7603, expected range: -251.8765 177.7856
Severe: rms_fgdepar=771.7603, expected range: 0.0000 249.7977
Severe: avg_pge=0.8734, expected range: -0.3695 0.4673
All BUFR SHIP SYNOP WMO BLOCK 45 : all data missing
Severe: obs_number=0, expected range: 224.21 244.86
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 2200192 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8736, expected range: 0.3136 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 3301611 : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8714, expected range: -1.4902 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6501671 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8054, expected range: -1.3209 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5401774 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8727, expected range: -1.6284 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6204596 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8807, expected range: -1.4958 0.7500
metar
METAR SURFACE PRESSURE (PA) PALP : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=316.5166, expected range: 0.0000 173.5549
snow
BUFR LAND SYNOP SNOW (CM) _MI1BC83 : out of range
29 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=56.3750, expected range: 34.7029 70.2897
BUFR LAND SYNOP SNOW (CM) _MI1BC83 : out of range
29 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=56.4812, expected range: 35.5957 71.1300
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=-773.0941, expected range: -773.0190 -772.5492
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=773.0941, expected range: 772.5493 773.0189
BUFR LAND SYNOP SNOW (CM) _MI11588 : out of range
21 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=59.5217, expected range: 32.2362 68.5978
BUFR LAND SYNOP SNOW (CM) _MI11588 : out of range
21 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=60.2087, expected range: 33.2753 68.4076
BUFR LAND SYNOP SNOW (CM) _MI1067E : out of range
34 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=60.1053, expected range: 54.4741 63.5124
BUFR LAND SYNOP SNOW (CM) _MI1067E : out of range
34 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=60.4383, expected range: 55.4313 63.5961
t2m
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-16.6306, expected range: -20.0150 -17.2727
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
20 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=16.6325, expected range: 17.3562 19.9765
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 52495 : out of range
Severe: avg_fgdepar=12.8047, expected range: -14.3168 16.7300
Severe: rms_fgdepar=12.8047, expected range: 0.0000 12.2736
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 52378 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=14.6624, expected range: 0.3421 14.2375
Severe: rms_fgdepar=14.6624, expected range: 0.3421 14.2375
METAR 2M TEMPERATURE (K) KLNS : out of range
Severe: rms_fgdepar=10.2201, expected range: 0.6278 5.0740
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 16362 : out of range
Severe: rms_fgdepar=30.6197, expected range: 4.0466 16.4784
AUTOMATIC LAND SYNOP RH2M (%) 72268 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=37.6136, expected range: 0.0000 17.0219
BUFR LAND SYNOP RH2M (%) 41710 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=30.0770, expected range: 0.0000 9.7753
BUFR LAND SYNOP RH2M (%) 41712 : out of range
Severe: rms_fgdepar=30.7785, expected range: 0.0000 15.4394