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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2021-07-15 00:00

iasi
METOP-A IASI RADIANCES (12 channels affected) : out of range
1 times in the last 10 days for at least one item
Severe: avg_biascorr=-0.2237, expected range: -0.1509 -0.1506
METOP-B IASI RADIANCES (14 channels affected) : out of range
1 times in the last 10 days for at least one item
Severe: avg_biascorr=-0.4702, expected range: -0.4356 -0.4151
cris
NOAA20 CRIS RADIANCES CHANNEL 82 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0199, expected range: -0.0147 -0.0136
NOAA20 CRIS RADIANCES CHANNEL 85 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0237, expected range: -0.0174 -0.0149
NOAA20 CRIS RADIANCES CHANNEL 661 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1682, expected range: -0.1933 -0.1882
Severely_persistent: avg_biascorr=-0.1680, expected range: -0.1913 -0.1883
NOAA20 CRIS RADIANCES CHANNEL 665 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0033, expected range: -0.0196 -0.0103
NOAA20 CRIS RADIANCES (21 channels affected) : out of range
1 times in the last 10 days for at least one item
Severe: avg_biascorr=-0.1683, expected range: -0.1906 -0.1889
airs
AQUA AIRS RADIANCES CHANNEL 1012 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1616, expected range: -0.1323 -0.1261
AQUA AIRS RADIANCES CHANNEL 27 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.3766, expected range: -0.3262 -0.2872
AQUA AIRS RADIANCES CHANNEL 52 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.3191, expected range: -0.2560 -0.2534
AQUA AIRS RADIANCES CHANNEL 72 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2225, expected range: -0.1821 -0.1527
gpsro
METOP-A GRAS RISING HEIGHT 44-46 KM : out of range
Considerable: stdev_norm_fgdepar=0.7416, expected range: 0.2695 0.5717
Atmospheric Motion Vector
HIMAWARI-8 AMV VIS1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 600-900 (HPA : out of range
Slight: obs_number=6009.0000, expected range: 6384.0531 6929.9469
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 40330-40331 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=0.2755, expected range: 0.7392 1.3088
Radiosondes
LAND TEMP TEMPERATURE (K) 78988 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=18.3340, expected range: -0.8306 0.7728
Severe: rms_fgdepar=18.3408, expected range: 0.2191 2.6871
Severe: avg_pge=0.8862, expected range: -0.0897 0.1230
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=3.1023, expected range: 0.6880 2.0417
LAND TEMP WIND VECTOR DIFF (M/S) 78988 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=21.1986, expected range: 2.0912 6.4010
Severe: rms_fgdepar=21.3545, expected range: 1.9180 7.7772
Severe: avg_pge=0.8395, expected range: -0.0766 0.3428
LAND TEMP Q (G/KG) 35700 PRESSURE LAYER 900-1200 (HPA) : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=6.2502, expected range: -3.1183 8.7087
Severe: rms_fgdepar=6.5269, expected range: 0.0000 9.1660
LAND TEMP Q (G/KG) 37055 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.1019, expected range: 0.0000 9.1029
All LAND TEMP ALL LAYERS WMO BLOCK 12 : all data missing
Severe: obs_number=0, expected range: 56.35 106.05
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 89611 PRESSURE LAYER 900-12 : out of range
Severe: rms_fgdepar=18.5122, expected range: 0.0000 9.5957
HIGH RESO LAND TEMP Q (G/KG) 94332 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.9368, expected range: 0.0000 2.0270
HIGH RESO LAND TEMP Q (G/KG) 73033 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=4.2394, expected range: 0.2252 2.4676
All HIGH RESO SEA TEMP ALL LAYERS North East Pacific : all data missing
Severe: obs_number=0, expected range: 0.00 512.52
HIGH RESO LAND TEMP TEMPERATURE (K) (4 pressure layers affected) : out of range
Considerable: obs_number=737.0000, expected range: 849.0658 943.9342
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) 2CQUILZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=22.4955, expected range: -1.4920 6.7248
Severe: rms_fgdepar=22.4955, expected range: 0.0000 8.0417
ADS-C WIND VECTOR DIFF (M/S) 1H5ZJBRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=22.6190, expected range: 0.0000 16.3067
ADS-C WIND VECTOR DIFF (M/S) LVPJ3ZRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.6062, expected range: 0.5838 5.8635
ADS-C WIND VECTOR DIFF (M/S) GYOTA4ZA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=20.0810, expected range: 0.0000 13.4759
ADS-C WIND VECTOR DIFF (M/S) L34LQHZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.6850, expected range: 0.0000 17.6652
ADS-C WIND VECTOR DIFF (M/S) WSRSVRZA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=25.2997, expected range: 0.0000 10.4066
ADS-C WIND VECTOR DIFF (M/S) NP0CVYZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.1590, expected range: 0.0000 16.0775
airep
AIREP WIND VECTOR DIFF (M/S) UAL91 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.8148, expected range: 0.0603 6.8329
AIREP WIND VECTOR DIFF (M/S) AMX004 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.8896, expected range: 0.0000 9.2458
AIREP WIND VECTOR DIFF (M/S) KLM168 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.7678, expected range: 0.0000 8.2985
AIREP WIND VECTOR DIFF (M/S) UAL989 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=15.4395, expected range: 1.4160 6.3088
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 01206 PRESSURE LAYER 600-900 : out of range
Severe: rms_fgdepar=17.8954, expected range: 0.0000 7.3391
Severe: avg_pge=0.8638, expected range: -0.5126 0.6641
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 68918 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8671, expected range: 0.0620 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 93498 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=305.0144, expected range: 0.0000 151.1235
Severe: avg_pge=0.8542, expected range: -0.4023 0.5273
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 62120 : out of range
Severe: rms_fgdepar=428.3827, expected range: 0.0000 330.6199
Severe: avg_pge=0.8438, expected range: -1.3740 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 67161 : out of range
Severe: avg_fgdepar=-538.9361, expected range: -68.7579 43.8612
Severe: rms_fgdepar=751.6365, expected range: 0.0000 59.9961
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83964 : out of range
Severe: avg_fgdepar=828.4655, expected range: -73.4769 34.3561
Severe: rms_fgdepar=828.4655, expected range: 0.0000 68.3177
Severe: avg_pge=0.9156, expected range: 0.0000 0.0000
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 63125 : out of range
Severe: avg_fgdepar=961.9360, expected range: -632.0996 717.4162
Severe: rms_fgdepar=961.9360, expected range: 0.0000 441.8730
Severe: avg_pge=0.9370, expected range: -1.1173 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 91425 : out of range
Severe: rms_fgdepar=359.6088, expected range: 0.0000 129.4490
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 67335 : out of range
Severe: rms_fgdepar=446.7530, expected range: 0.0000 109.7666
MANUAL LAND SYNOP RH2M (%) 41710 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8807, expected range: -1.2876 0.7500
MANUAL LAND SYNOP RH2M (%) 40811 : out of range
Severe: rms_fgdepar=33.9603, expected range: 0.0000 15.2253
MANUAL LAND SYNOP RH2M (%) 40703 : out of range
Severe: rms_fgdepar=37.9325, expected range: 0.1557 13.3845
MANUAL LAND SYNOP RH2M (%) 62463 : out of range
Severe: rms_fgdepar=47.6059, expected range: 0.0000 16.6874
MANUAL LAND SYNOP RH2M (%) 42935 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9960, expected range: -0.8393 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 61293 : out of range
Severe: rms_fgdepar=552.4311, expected range: 0.0000 222.8296
BUFR LAND SYNOP SURFACE PRESSURE (PA) 72645 : out of range
Severe: rms_fgdepar=336.1451, expected range: 0.0000 159.7804
BUFR LAND SYNOP RH2M (%) 71340 : out of range
Severe: avg_pge=0.8073, expected range: -0.9005 0.7500
BUFR LAND SYNOP RH2M (%) 71550 : out of range
Severe: rms_fgdepar=35.2290, expected range: 0.0000 15.1217
BUFR LAND SYNOP RH2M (%) 41112 : out of range
Severe: rms_fgdepar=41.3346, expected range: 0.0000 20.9246
BUFR LAND SYNOP RH2M (%) 41114 : out of range
Severe: rms_fgdepar=51.2206, expected range: 0.0000 37.4758
BUFR LAND SYNOP RH2M (%) 08544 : out of range
Severe: rms_fgdepar=42.1991, expected range: -7.9298 11.4436
BUFR LAND SYNOP RH2M (%) 70194 : out of range
Severe: rms_fgdepar=41.5999, expected range: 0.0000 19.4449
BUFR LAND SYNOP RH2M (%) 81888 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9969, expected range: -1.1719 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
Considerable: obs_number=233.0000, expected range: 327.1676 406.6101
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9V3710 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=20.6410, expected range: -2.5730 7.7766
Severe: rms_fgdepar=20.6410, expected range: 0.0000 8.8274
Severe: avg_pge=0.9126, expected range: -0.9937 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V5242 : out of range
Severe: avg_fgdepar=545.7033, expected range: -956.9056 1598.5472
Severe: rms_fgdepar=545.7033, expected range: 0.0000 1448.1201
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRQS3 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=541.8502, expected range: -2014.1128 2500.1124
Severe: rms_fgdepar=541.9357, expected range: 0.0000 1513.1092
BUFR SHIP SYNOP SURFACE PRESSURE (PA) CQIV3 : out of range
Severe: avg_fgdepar=-787.5769, expected range: -236.8896 176.3492
Severe: rms_fgdepar=787.5769, expected range: 0.0000 197.0868
Severe: avg_pge=0.8872, expected range: -0.1266 0.1399
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 45014 : out of range
Severe: rms_fgdepar=352.8505, expected range: 0.0000 87.2440
BUFR SHIP SYNOP SURFACE PRESSURE (PA) KIAB : out of range
Severe: rms_fgdepar=372.7717, expected range: 0.0000 139.5971
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 4801670 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=531.8367, expected range: -45.6978 1065.2002
Severely_persistent: rms_fgdepar=536.2807, expected range: 0.0000 1063.5428
MOORED BUOYS SURFACE PRESSURE (PA) 2200187 : out of range
Severe: rms_fgdepar=326.2901, expected range: 0.0000 122.4299
Severe: avg_pge=0.8223, expected range: -0.1311 0.1962
MOORED BUOYS SURFACE PRESSURE (PA) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=103.0000, expected range: 87.1884 97.4783
metar
METAR SURFACE PRESSURE (PA) BIEG : out of range
Severe: rms_fgdepar=408.6664, expected range: 0.0000 114.4905
METAR SURFACE PRESSURE (PA) KEMT : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=454.6831, expected range: 0.0000 119.8263
METAR SURFACE PRESSURE (PA) VABV : out of range
Severe: rms_fgdepar=302.5092, expected range: 0.0000 132.8150
AUTOMATIC METAR SURFACE PRESSURE (PA) K3D2 : out of range
Severe: rms_fgdepar=333.5984, expected range: 0.0000 73.6497
AUTOMATIC METAR SURFACE PRESSURE (PA) K2P2 : out of range
Severe: rms_fgdepar=343.7272, expected range: 0.0000 87.5697
AUTOMATIC METAR SURFACE PRESSURE (PA) KCWA : out of range
Severe: rms_fgdepar=403.6033, expected range: 0.0000 157.8024
AUTOMATIC METAR SURFACE PRESSURE (PA) KGRB : out of range
Severe: rms_fgdepar=356.7999, expected range: 0.0000 126.6437
AUTOMATIC METAR SURFACE PRESSURE (PA) KESC : out of range
Severe: rms_fgdepar=498.2884, expected range: 0.0000 127.2889
AUTOMATIC METAR SURFACE PRESSURE (PA) KSTE : out of range
Severe: rms_fgdepar=376.1386, expected range: 0.0000 127.6228
AUTOMATIC METAR SURFACE PRESSURE (PA) KSUE : out of range
Severe: rms_fgdepar=325.2158, expected range: 0.0000 118.0039
AUTOMATIC METAR SURFACE PRESSURE (PA) KAIG : out of range
Severe: rms_fgdepar=366.5473, expected range: 0.8092 105.5312
AUTOMATIC METAR SURFACE PRESSURE (PA) KRHI : out of range
Severe: rms_fgdepar=341.1082, expected range: 0.0000 110.1163
AUTOMATIC METAR SURFACE PRESSURE (PA) KCLI : out of range
Severe: rms_fgdepar=348.0241, expected range: 0.0000 116.9967
AUTOMATIC METAR SURFACE PRESSURE (PA) KMNM : out of range
Severe: rms_fgdepar=432.3446, expected range: 0.0000 139.4371
AUTOMATIC METAR SURFACE PRESSURE (PA) KOCQ : out of range
Severe: rms_fgdepar=353.1460, expected range: 0.0000 124.9368
AUTOMATIC METAR SURFACE PRESSURE (PA) KEZS : out of range
Severe: rms_fgdepar=383.4594, expected range: 0.0000 108.0510
AUTOMATIC METAR SURFACE PRESSURE (PA) KIMT : out of range
Severe: rms_fgdepar=400.2436, expected range: 0.0000 110.6276
AUTOMATIC METAR SURFACE PRESSURE (PA) KTKV : out of range
Severe: rms_fgdepar=323.0530, expected range: 0.0000 120.8122
AUTOMATIC METAR SURFACE PRESSURE (PA) KSAW : out of range
Severe: rms_fgdepar=316.9444, expected range: 0.0000 106.9810
AUTOMATIC METAR SURFACE PRESSURE (PA) KISW : out of range
Severe: rms_fgdepar=328.1355, expected range: 0.0000 137.0785
AUTOMATIC METAR SURFACE PRESSURE (PA) KAUW : out of range
Severe: rms_fgdepar=305.9522, expected range: 0.0000 102.2399
snow
AUTOMATIC LAND SYNOP SNOW (CM) 35475 : out of range
Severe: rms_fgdepar=20.0000, expected range: 3.6595 10.6738
BUFR LAND SYNOP SNOW (CM) 35475 : out of range
Severe: rms_fgdepar=20.0000, expected range: 3.6595 10.6738
t2m
MANUAL LAND SYNOP 2M TEMPERATURE (K) 62463 : out of range
Severe: rms_fgdepar=11.2205, expected range: 0.3474 1.7174
MANUAL LAND SYNOP 2M TEMPERATURE (K) 64387 : out of range
Severe: rms_fgdepar=10.5670, expected range: 0.0000 2.0372
METAR 2M TEMPERATURE (K) SKBG : out of range
Severe: rms_fgdepar=10.7337, expected range: 0.0959 4.6195
METAR 2M TEMPERATURE (K) KNHK : out of range
Severe: rms_fgdepar=12.7055, expected range: 0.0000 6.1158
METAR 2M TEMPERATURE (K) ENGM : out of range
Severe: rms_fgdepar=10.7743, expected range: 0.8462 2.7707
METAR 2M TEMPERATURE (K) KLHW : out of range
Severe: rms_fgdepar=10.1813, expected range: 0.7937 3.3530
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 72360 : out of range
Severe: rms_fgdepar=36.6801, expected range: 0.0000 19.4455