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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-05-12 12:00

amsua
NOAA 15 AMSUA ALL SKY RADIANCES CHANNEL 8 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0881, expected range: 0.1542 0.2076
NOAA 18 AMSUA ALL SKY RADIANCES CHANNEL 9 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.5760, expected range: -0.6571 -0.6229
NOAA 18 AMSUA ALL SKY RADIANCES CHANNEL 7 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.5708, expected range: -0.4709 -0.3853
METOP-B AMSUA ALL SKY RADIANCES CHANNEL 8 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2065, expected range: 0.3147 0.3244
METOP-B AMSUA ALL SKY RADIANCES CHANNEL 9 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2421, expected range: -0.1314 -0.0875
METOP-C AMSUA ALL SKY RADIANCES CHANNEL 8 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2773, expected range: -0.1608 -0.1508
METOP-C AMSUA ALL SKY RADIANCES CHANNEL 9 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.7232, expected range: -0.6370 -0.5890
mwhs2
FY-3C MWHS2 ALLSKY RADIANCES CHANNEL 3 : out of range
4 times in the last 10 days for at least one item
Considerable: avg_biascorr=-1.1252, expected range: -1.0605 -0.9690
atms
NPP ATMS RADIANCES CHANNEL 19 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1227, expected range: -0.2010 -0.1786
NPP ATMS RADIANCES CHANNEL 22 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.7252, expected range: 0.6196 0.6678
NPP ATMS RADIANCES CHANNEL 14 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0304, expected range: -0.0370 -0.0164
NPP ATMS RADIANCES CHANNEL 11 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2995, expected range: -0.2392 -0.1766
NPP ATMS RADIANCES CHANNEL 12 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.4811, expected range: -0.4307 -0.3719
NPP ATMS RADIANCES CHANNEL 13 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.4125, expected range: -0.3684 -0.3408
NOAA20 ATMS RADIANCES CHANNEL 19 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.3953, expected range: -0.4577 -0.4233
NOAA20 ATMS RADIANCES CHANNEL 20 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2463, expected range: -0.2919 -0.2913
NOAA20 ATMS RADIANCES CHANNEL 22 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.5262, expected range: 0.4248 0.4639
Atmospheric Motion Vector
HIMAWARI-8 AMV VIS1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 600-900 (HPA : out of range
Severe: obs_number=212.0000, expected range: 120.6496 150.3479
AQUA MODIS CLOUDY WV WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HP : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=522.0000, expected range: 269.8378 392.8539
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 250-251 (HPA) : out of range
1 times in the last 10 days for at least one item
Slight: avg_fgdepar=-0.0397, expected range: -0.2643 -0.0991
Radiosondes
LAND TEMP TEMPERATURE (K) 40811 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=9.1463, expected range: 0.0000 3.4807
LAND TEMP TEMPERATURE (K) 26781 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=6.0254, expected range: 0.0000 2.3283
LAND TEMP Q (G/KG) 48855 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.0500, expected range: 0.0802 1.4228
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : missing
1 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 63.7837 155.8163
Considerable: obs_number=2245.0000, expected range: 1785.9149 2065.8351
HIGH RESO LAND TEMP Q (G/KG) 73110 PRESSURE LAYER 600-900 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=2.0867, expected range: 0.1271 0.5357
HIGH RESO LAND TEMP Q (G/KG) 07510 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.2286, expected range: 0.0515 1.2163
HIGH RESO LAND TEMP Q (G/KG) 72645 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=2.6183, expected range: 0.0000 1.4484
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=382.0000, expected range: 280.6667 290.6667
Considerable: obs_number=245.0000, expected range: 449.1147 767.6353
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=1.2655, expected range: 0.3864 0.8862
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 83 : all data missing
Severe: obs_number=0, expected range: 71.57 110.87
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 85 : all data missing
Severe: obs_number=0, expected range: 199.99 838.51
HIGH RESO SEA TEMP TEMPERATURE (K) PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.4552, expected range: 0.3726 1.3200
Severe: rms_fgdepar=3.9758, expected range: 0.3252 1.3064
HIGH RESO SEA TEMP Q (G/KG) XKQLWQB PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.8567, expected range: -0.2107 0.2751
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 300-600 (HPA) : out of range
Considerable: obs_number=338.0000, expected range: 132.6375 202.1125
amdar
WIGOS AMDAR Q (G/KG) BPZGUWRA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.9082, expected range: -0.7311 0.7500
ADS-C WIND VECTOR DIFF (M/S) 3N5BFFBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=33.0849, expected range: 0.0000 9.9808
ADS-C WIND VECTOR DIFF (M/S) X4TBZDRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.0694, expected range: 0.0000 8.9123
ADS-C WIND VECTOR DIFF (M/S) 1B2J5RZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.7360, expected range: 0.0000 10.5377
airep
AIREP WIND VECTOR DIFF (M/S) QFA93 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.6369, expected range: 0.0000 8.2461
AIREP WIND VECTOR DIFF (M/S) UAL839 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=34.3458, expected range: 0.0042 6.8054
Severe: rms_fgdepar=43.1020, expected range: 0.0000 7.8925
synop
MANUAL LAND SYNOP RH2M (%) 42792 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8687, expected range: -0.6709 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 67221 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8222, expected range: 0.6753 0.7500
MANUAL LAND SYNOP RH2M (%) 42834 : out of range
Severe: rms_fgdepar=36.0576, expected range: 0.0000 12.2486
Severe: avg_pge=0.9999, expected range: -0.0003 0.0062
MANUAL LAND SYNOP RH2M (%) 67229 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8891, expected range: -1.0312 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 78706 : out of range
Severe: rms_fgdepar=345.6203, expected range: 0.0000 231.3179
Severe: avg_pge=0.8512, expected range: -0.8264 0.7500
BUFR LAND SYNOP RH2M (%) 71244 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=36.9950, expected range: 0.0000 19.2611
BUFR LAND SYNOP RH2M (%) 72564 : out of range
Severe: rms_fgdepar=49.8845, expected range: 0.0000 41.4859
Severe: avg_pge=0.9813, expected range: -0.0100 0.0182
BUFR LAND SYNOP RH2M (%) 72776 : out of range
Severe: rms_fgdepar=40.2012, expected range: 0.0000 14.5439
BUFR LAND SYNOP RH2M (%) 61627 : out of range
Severe: avg_pge=0.9623, expected range: -0.8529 0.7500
BUFR LAND SYNOP RH2M (%) 08068 : out of range
Severe: rms_fgdepar=35.0714, expected range: 0.0000 18.7018
BUFR LAND SYNOP RH2M (%) 33049 : out of range
Severe: rms_fgdepar=37.5556, expected range: 0.0000 20.8788
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48930 : out of range
Severe: avg_fgdepar=-521.6391, expected range: -580.4630 209.6374
Severe: rms_fgdepar=603.1972, expected range: 0.0000 591.9756
BUFR LAND SYNOP SURFACE PRESSURE (PA) 12805 : out of range
Severe: rms_fgdepar=415.9515, expected range: 0.0000 82.8185
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41965 : out of range
Severe: avg_pge=0.8212, expected range: -1.0905 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24967 : out of range
Severe: rms_fgdepar=578.1250, expected range: 0.0000 330.5439
BUFR LAND SYNOP SURFACE PRESSURE (PA) 61698 : out of range
Severe: rms_fgdepar=579.7267, expected range: 0.0000 418.3064
BUFR LAND SYNOP SURFACE PRESSURE (PA) 30439 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-501.8075, expected range: -278.7564 201.0940
Severe: rms_fgdepar=666.8918, expected range: 0.0000 254.9953
BUFR LAND SYNOP SURFACE PRESSURE (PA) 22749 : out of range
Severe: rms_fgdepar=312.7393, expected range: 0.0000 155.8477
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41859 : out of range
Severe: rms_fgdepar=452.1657, expected range: 0.0000 104.9879
Severe: avg_pge=0.8878, expected range: -0.6229 0.7450
BUFR LAND SYNOP Z (M) : out of range
1 times in the last 10 days for at least one item
Slight: rms_fgdepar=151.3045, expected range: 23.6983 145.0924
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 3E2426 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8924, expected range: -0.2751 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 45024 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8782, expected range: 0.6465 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OXZO2 : out of range
Severe: avg_fgdepar=521.2391, expected range: -426.4110 513.9211
Severe: rms_fgdepar=522.7123, expected range: 0.0000 336.2802
BUFR SHIP SYNOP SURFACE PRESSURE (PA) LAQJ7 : out of range
Severe: avg_pge=0.8151, expected range: 0.6346 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 5102722 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-502.0379, expected range: -850.4710 1057.7520
Severely_persistent: rms_fgdepar=528.9195, expected range: -828.2301 1087.5799
Severely_persistent: avg_pge=0.8866, expected range: -1.5349 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6301572 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8175, expected range: -1.5558 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5401536 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8515, expected range: -1.5259 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6102797 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8497, expected range: -0.9640 0.7500
metar
METAR SURFACE PRESSURE (PA) OMAL : out of range
Severe: rms_fgdepar=305.8381, expected range: 0.0000 153.5403
AUTOMATIC METAR SURFACE PRESSURE (PA) KCDD : out of range
Severe: rms_fgdepar=322.9932, expected range: 0.0000 183.0228
AUTOMATIC METAR SURFACE PRESSURE (PA) KGPZ : out of range
Severe: rms_fgdepar=313.5867, expected range: 0.0000 126.8207
snow
AUTOMATIC LAND SYNOP SNOW (CM) 71743 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-53.0770, expected range: -75.0359 -62.2568
Severely_persistent: rms_fgdepar=53.0770, expected range: 62.2568 75.0359
BUFR LAND SYNOP SNOW (CM) 01361 : out of range
32 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=59.7259, expected range: 43.3465 58.3197
Severely_persistent: rms_fgdepar=59.7264, expected range: 43.3477 58.3248
BUFR LAND SYNOP SNOW (CM) _MF1EB15 : out of range
36 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-738.0643, expected range: -737.3472 -712.1187
BUFR LAND SYNOP SNOW (CM) _MF1EB15 : out of range
36 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=738.0643, expected range: 712.1207 737.3471
BUFR LAND SYNOP SNOW (CM) 01008 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-89.3180, expected range: -94.3573 -89.8094
Severely_persistent: rms_fgdepar=89.3180, expected range: 89.8095 94.3573
BUFR LAND SYNOP SNOW (CM) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=18.7255, expected range: 239.8521 364.2156
MANUAL LAND SYNOP SNOW (CM) 71580 : out of range
Severe: avg_fgdepar=55.0576, expected range: -1.8957 1.6363
Severe: rms_fgdepar=77.7971, expected range: 0.0000 1.8102
t2m
BUFR LAND SYNOP 2M TEMPERATURE (K) 78896 : out of range
28 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-15.9854, expected range: -18.7905 -7.1481
Severely_persistent: rms_fgdepar=16.0512, expected range: 7.3824 19.0360
MANUAL LAND SYNOP 2M TEMPERATURE (K) 40627 : out of range
Severe: rms_fgdepar=10.0257, expected range: -2.5071 4.4571
MANUAL LAND SYNOP 2M TEMPERATURE (K) 42079 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.8011, expected range: 1.0247 6.0438
MANUAL LAND SYNOP 2M TEMPERATURE (K) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=109.0000, expected range: 133.9766 135.8234
METAR 2M TEMPERATURE (K) OIGK : out of range
Severe: rms_fgdepar=12.1608, expected range: 0.6902 11.1233
METAR 2M TEMPERATURE (K) MMCS : out of range
Severe: rms_fgdepar=11.2322, expected range: 0.4436 4.4212
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=9908.0000, expected range: 12453.6746 12929.9724
Severe: obs_number=7668.0000, expected range: 10215.0705 10737.9883
Severe: obs_number=8970.0000, expected range: 11575.8858 12022.8201
Considerable: obs_number=57.0000, expected range: 77.5429 117.0453
rh2m
BUFR LAND SYNOP RH2M (%) 08487 : out of range
Severe: rms_fgdepar=33.5558, expected range: 0.0000 17.9919
MANUAL LAND SYNOP RH2M (%) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=107.0000, expected range: 128.8438 134.5562
BUFR LAND SYNOP RH2M (%) : out of range
Considerable: obs_number=5623.0000, expected range: 6554.8383 7408.8087
Considerable: obs_number=7812.0000, expected range: 8755.2958 9539.7631
Considerable: obs_number=6904.0000, expected range: 7890.5264 8682.2971