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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-09-15 00:00

iasi
METOP-B IASI RADIANCES CHANNEL 131 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.3376, expected range: 0.3647 0.3873
All METOP-C IASI ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 21799.70 23914.75
ssmis
DMSP-18 SSMIS RADIANCES CHANNEL 7 : out of range
3 times in the last 10 days for at least one item
Severe: avg_biascorr=5.2252, expected range: 3.9245 4.2196
gpsro
COSMIC2-E5 GPSRO SETTING (24 impact heights affected) : out of range
1 times in the last 10 days for at least one item
Slight: obs_number=1356.0000, expected range: 1729.5060 2707.2440
COSMIC2-E6 GPSRO SETTING (14 impact heights affected) : out of range
Slight: obs_number=2159.0000, expected range: 2494.6545 3697.4705
Atmospheric Motion Vector
METEOSAT-9 AMV VIS2 WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HP : out of range
Considerable: obs_number=2308.0000, expected range: 1220.4146 1668.5854
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 10-11 (HPA) : out of range
19 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=0.0084, expected range: 0.0067 0.0068
Severely_persistent: avg_fgdepar=-0.0260, expected range: -0.0331 -0.0324
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1010-1011 (HPA) : out of range
14 times in the last 10 days for at least one item
Slight: avg_fgdepar=-4.2766, expected range: -3.3301 -3.3301
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1600-1601 (HPA) : out of range
8 times in the last 10 days for at least one item
Slight: stdev_fgdepar=3.3534, expected range: 2.7110 3.3217
Radiosondes
LAND TEMP Q (G/KG) 62378 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.8112, expected range: 0.1240 1.4070
LAND TEMP Q (G/KG) 41169 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.2449, expected range: 0.0000 9.4890
LAND TEMP TEMPERATURE (K) 36003 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=8.6902, expected range: 0.0000 4.1805
LAND TEMP TEMPERATURE (K) 32477 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=6.7415, expected range: 0.0000 4.4657
Severe: avg_pge=0.8705, expected range: -0.4981 0.7500
LAND TEMP TEMPERATURE (K) 98433 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=-10.5695, expected range: -1.7969 1.9444
Severe: rms_fgdepar=10.5695, expected range: 0.0000 1.5514
Severe: avg_pge=0.9419, expected range: -0.6587 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 38341 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=15.4104, expected range: 0.0000 6.2817
All LAND TEMP ALL LAYERS WMO BLOCK 70 : all data missing
Severe: obs_number=0, expected range: 52.35 114.90
HIGH RESO LAND TEMP Q (G/KG) 47827 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=2.2366, expected range: 0.0669 1.2036
HIGH RESO LAND TEMP Q (G/KG) 81405 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=4.5307, expected range: 0.2881 2.3545
HIGH RESO LAND TEMP Q (G/KG) 72206 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.8293, expected range: 0.3185 1.1307
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_fgdepar=4.1542, expected range: -0.7612 1.9158
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 300-600 (HPA) : missing
2 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 15.3768 223.2754
Severe: obs_number=0.0000, expected range: 37.7963 386.6033
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 50557 PRESSURE LAYER 0-300 : out of range
Severe: rms_fgdepar=21.2596, expected range: 0.0000 5.5359
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 16546 PRESSURE LAYER 900-12 : out of range
Severe: rms_fgdepar=17.1847, expected range: 0.0000 7.8745
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=9.7016, expected range: 0.5073 4.7891
HIGH RESO LAND TEMP 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=189.0000, expected range: 271.4535 284.5465
Severe: obs_number=0.0000, expected range: 25.4097 239.6846
Considerable: obs_number=380.0000, expected range: 275.5000 295.5000
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 35 : all data missing
Severe: obs_number=0, expected range: 107.66 143.09
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 46 : all data missing
Severe: obs_number=0, expected range: 25.23 322.70
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 85 : all data missing
Severe: obs_number=0, expected range: 130.91 154.52
amdar
WIGOS AMDAR TEMPERATURE (K) GXSXPBBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=9.0444, expected range: -0.7878 0.1180
Severe: rms_fgdepar=9.0444, expected range: 0.0000 1.4634
Severe: avg_pge=0.8786, expected range: 0.0000 0.0000
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU0900 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.7638, expected range: 0.6288 3.8911
WIGOS AMDAR Q (G/KG) DVPUOFZA PRESSURE LAYER 900-1200 (HPA) : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-7.4031, expected range: -10.4918 1.6178
Severe: rms_fgdepar=7.5012, expected range: 0.0000 10.4106
ADS-C WIND VECTOR DIFF (M/S) VHXTWMFA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.7842, expected range: 0.0000 10.5062
ADS-C WIND VECTOR DIFF (M/S) RYZVAMJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=24.6058, expected range: 0.0000 7.9903
ADS-C WIND VECTOR DIFF (M/S) C03XONRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=24.6941, expected range: 0.0000 9.8369
ADS-C WIND VECTOR DIFF (M/S) KEOTZHZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.0784, expected range: 0.0000 9.4185
ADS-C WIND VECTOR DIFF (M/S) 1AQICMZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.4148, expected range: 0.0000 11.0421
synop
BUFR LAND SYNOP SURFACE PRESSURE (PA) 68939 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=692.9866, expected range: -821.2483 862.1247
Severely_persistent: rms_fgdepar=693.8613, expected range: 0.0000 496.3623
Severely_persistent: avg_pge=0.9369, expected range: 0.0327 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 68821 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=46.6478, expected range: 0.0000 34.6622
Severe: avg_pge=0.9232, expected range: -0.4194 0.4830
Severe: rms_fgdepar=34.7734, expected range: 0.0000 16.2260
MANUAL LAND SYNOP Z (M) 67475 : out of range
Severe: rms_fgdepar=61.1602, expected range: 0.0000 33.7229
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40680 : out of range
Severe: rms_fgdepar=343.3320, expected range: 0.0000 247.0287
Severe: avg_pge=0.8162, expected range: -0.8902 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43359 : out of range
Severe: avg_pge=0.8505, expected range: -1.3627 0.7500
MANUAL LAND SYNOP RH2M (%) 42740 : out of range
Severe: rms_fgdepar=35.0469, expected range: 0.0000 15.2012
Severe: avg_pge=0.9992, expected range: -0.0002 0.0060
MANUAL LAND SYNOP RH2M (%) 40691 : out of range
Severe: avg_pge=0.9976, expected range: -0.1114 0.1432
MANUAL LAND SYNOP RH2M (%) 60725 : out of range
Severe: rms_fgdepar=44.0446, expected range: 0.0000 40.5712
Severe: avg_pge=0.9936, expected range: -0.1894 0.2299
BUFR LAND SYNOP SURFACE PRESSURE (PA) 58150 : out of range
Severe: rms_fgdepar=336.5185, expected range: 0.0000 135.6505
BUFR LAND SYNOP SURFACE PRESSURE (PA) 26951 : out of range
Severe: rms_fgdepar=546.7140, expected range: 0.0000 90.5208
BUFR LAND SYNOP SURFACE PRESSURE (PA) 43382 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-531.6749, expected range: -128.8786 128.1049
Severe: rms_fgdepar=531.6749, expected range: 0.0000 170.2793
Severe: avg_pge=0.8972, expected range: -1.5251 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94333 : out of range
Severe: rms_fgdepar=353.1855, expected range: 0.0000 125.5937
BUFR LAND SYNOP SURFACE PRESSURE (PA) 81833 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8075, expected range: 0.6184 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 43354 : out of range
Severe: avg_fgdepar=-641.3196, expected range: -233.7552 35.4546
Severe: rms_fgdepar=641.3196, expected range: 0.0000 233.7552
Severe: avg_pge=0.9177, expected range: -0.4811 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 29876 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=574.9182, expected range: -305.0693 385.4630
Severe: rms_fgdepar=576.6020, expected range: 0.0000 265.6910
Severe: avg_pge=0.8870, expected range: -0.8783 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 13067 : out of range
Severe: rms_fgdepar=345.8526, expected range: 0.0000 159.2354
BUFR LAND SYNOP SURFACE PRESSURE (PA) 93738 : out of range
Severe: rms_fgdepar=301.2484, expected range: 0.0000 280.0909
Severe: avg_pge=0.8346, expected range: -0.5962 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 42639 : out of range
Severe: rms_fgdepar=309.1230, expected range: 0.0000 153.6096
BUFR LAND SYNOP RH2M (%) 64040 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-51.3812, expected range: -64.4351 -32.3184
Severe: rms_fgdepar=51.3812, expected range: 32.3184 64.4351
BUFR LAND SYNOP RH2M (%) 35106 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=48.3074, expected range: 0.0000 27.1851
BUFR LAND SYNOP RH2M (%) 72267 : out of range
Severe: rms_fgdepar=35.0791, expected range: 0.0000 9.6261
BUFR LAND SYNOP RH2M (%) 04829 : out of range
Severe: rms_fgdepar=44.3384, expected range: 0.0000 15.8069
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OYGR2 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-644.7319, expected range: -838.9284 -447.0836
Severely_persistent: rms_fgdepar=644.7319, expected range: 447.2079 838.8478
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OXFU2 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=541.0816, expected range: 350.0518 648.6063
Severely_persistent: rms_fgdepar=541.0816, expected range: 349.8327 649.1287
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRLJ4 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=1338.5714, expected range: 295.5764 2046.3819
Severely_persistent: rms_fgdepar=1338.5714, expected range: 295.5764 2046.3819
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) BATFR20 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=15.8526, expected range: 0.0000 4.9772
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V6171 : out of range
Severe: avg_fgdepar=871.5255, expected range: -358.9100 342.8544
Severe: rms_fgdepar=871.5255, expected range: 0.0000 386.6534
Severe: avg_pge=0.8922, expected range: -0.8179 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRG03 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=873.8665, expected range: 497.6881 1367.4121
Severe: rms_fgdepar=873.8665, expected range: 497.6881 1367.4121
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HA5028 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=443.6787, expected range: 0.0000 330.3313
Severe: avg_pge=0.8251, expected range: -0.9356 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRRZ8 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=1218.5015, expected range: -574.0759 484.3642
Severe: rms_fgdepar=1218.5015, expected range: 0.0000 631.6243
Severe: avg_pge=0.9185, expected range: -1.0871 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WTED : out of range
Severe: rms_fgdepar=327.1122, expected range: 0.0000 117.4195
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WCAJ : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=545.9762, expected range: 0.0000 483.3182
metar
METAR SURFACE PRESSURE (PA) SGME : out of range
Severe: avg_fgdepar=-951.3925, expected range: -274.3592 140.1464
Severe: rms_fgdepar=951.3925, expected range: 0.0000 243.5562
Severe: avg_pge=0.8846, expected range: -0.4368 0.5172
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=-772.9363, expected range: -774.7039 -771.7600
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=772.9363, expected range: 771.7601 774.7039
BUFR LAND SYNOP SNOW (CM) _MI1F9AC : out of range
27 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=51.3750, expected range: 44.7018 57.3500
BUFR LAND SYNOP SNOW (CM) _MI1F9AC : out of range
27 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=51.9050, expected range: 45.5747 57.8861
t2m
METAR 2M TEMPERATURE (K) KTLH : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-14.7204, expected range: -20.6258 10.2330
Severely_persistent: rms_fgdepar=14.7204, expected range: 0.0000 20.9737
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-16.8522, expected range: -21.6645 -12.3642
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=16.9216, expected range: 12.4104 21.6552
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
36 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-16.7739, expected range: -20.8685 -11.2249
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
36 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=16.7747, expected range: 11.2516 20.8656
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 56106 : out of range
Severe: avg_fgdepar=13.2723, expected range: 3.4235 13.1155
Severe: rms_fgdepar=13.2723, expected range: 3.4235 13.1155
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 68619 : out of range
Severe: rms_fgdepar=10.0829, expected range: 0.0000 5.7096
MANUAL LAND SYNOP 2M TEMPERATURE (K) 94334 : out of range
Severe: rms_fgdepar=10.4536, expected range: 0.6846 2.9388
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 68677 : out of range
Severe: rms_fgdepar=32.6543, expected range: 0.0000 16.7143
BUFR LAND SYNOP RH2M (%) : out of range
Considerable: rms_fgdepar=23.1487, expected range: 8.5543 18.0381