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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-09-18 12:00

iasi
METOP-B IASI RADIANCES CHANNEL 133 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2348, expected range: 0.2779 0.3305
METOP-B IASI RADIANCES CHANNEL 131 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.3364, expected range: 0.3647 0.3916
METOP-C IASI RADIANCES CHANNEL 386 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=0.0367, expected range: 0.0913 0.1482
airs
AQUA AIRS RADIANCES CHANNEL 128 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0262, expected range: -0.1428 -0.1007
AQUA AIRS RADIANCES CHANNEL 129 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1308, expected range: -0.2198 -0.1793
AQUA AIRS RADIANCES CHANNEL 138 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0073, expected range: -0.1638 -0.1068
AQUA AIRS RADIANCES (12 channels affected) : out of range
Severe: avg_biascorr=0.0659, expected range: 0.0753 0.0878
atms
NPP ATMS RADIANCES CHANNEL 9 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.5224, expected range: -0.4580 -0.4478
NOAA20 ATMS RADIANCES CHANNEL 11 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.4369, expected range: -0.3783 -0.3744
ssmis
DMSP-18 SSMIS RADIANCES CHANNEL 7 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=4.7367, expected range: 3.6366 4.2196
Atmospheric Motion Vector
GOES-17 AMV IR1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : out of range
Slight: stdev_press=79.1231, expected range: 69.1420 74.7917
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: 0.0063 0.0068
Severely_persistent: avg_fgdepar=-0.0270, expected range: -0.0346 -0.0324
METOP-B GOME-2 OZONE, TOP PRESSURE LAYER 12-13 (HPA) : out of range
12 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=4.3648, expected range: 5.0442 5.3007
AURA OMI OZONE, TOP PRESSURE LAYER 12-13 (HPA) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=9176.0000, expected range: 17515.7264 23964.8618
Radiosondes
LAND TEMP Q (G/KG) 28695 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.3656, expected range: 0.0000 1.2747
LAND TEMP Q (G/KG) 72317 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.6749, expected range: 0.1031 1.5277
HIGH RESO LAND TEMP TEMPERATURE (K) 56146 PRESSURE LAYER 600-900 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8277, expected range: -1.5122 0.7500
HIGH RESO LAND TEMP Q (G/KG) (2 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=95.0000, expected range: 184.2692 197.2863
Considerable: obs_number=361.0000, expected range: 278.0148 294.4296
HIGH RESO LAND TEMP Q (G/KG) 72235 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.3227, expected range: 0.7053 1.5575
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 300-600 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=1.2925, expected range: 0.0975 0.7553
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 66 : all data missing
Severe: obs_number=0, expected range: 132.83 163.17
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 82 : all data missing
Severe: obs_number=0, expected range: 84.53 118.81
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 88 : all data missing
Severe: obs_number=0, expected range: 0.00 650.74
All HIGH RESO SEA TEMP ALL LAYERS Alantic Tropical are : all data missing
Severe: obs_number=0, expected range: 153.17 169.50
All BUFR TEMP DESCENT ALL LAYERS North Atlantic : all data missing
Severe: obs_number=0, expected range: 72.45 124.89
All BUFR TEMP DESCENT ALL LAYERS Alantic Tropical are : all data missing
Severe: obs_number=0, expected range: 80.96 102.64
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) POCUNVJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.5256, expected range: 0.0000 5.9476
WIGOS AMDAR WIND VECTOR DIFF (M/S) 0FWUNVRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.1395, expected range: 0.0000 7.9444
ADS-C WIND VECTOR DIFF (M/S) 113IG1BA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=48.0016, expected range: 0.6769 6.7308
Severe: rms_fgdepar=48.0016, expected range: 1.3160 7.2289
ADS-C WIND VECTOR DIFF (M/S) WHZBFCRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=20.9922, expected range: 0.3992 6.8127
airep
AIREP WIND VECTOR DIFF (M/S) BAW242 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=20.9392, expected range: 0.0000 11.3797
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 06632 PRESSURE LAYER 300-600 : out of range
Severe: avg_fgdepar=27.1732, expected range: -0.5046 11.0439
Severe: rms_fgdepar=27.1735, expected range: 0.0000 14.0861
Severe: avg_pge=0.9108, expected range: -0.3282 0.7500
JAPANESE WIND PROFILER VECTOR DIFF (M/S) 47836 PRESSURE LAYER 900-1200 : out of range
Severe: avg_fgdepar=21.6933, expected range: 0.0855 4.1085
Severe: avg_pge=0.9097, expected range: -0.2339 0.6135
JAPANESE WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Slight: obs_number=288.0000, expected range: 0.0000 154.3960
synop
BUFR LAND SYNOP SURFACE PRESSURE (PA) 17060 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8011, expected range: -1.1980 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71588 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=506.2989, expected range: 365.0894 584.7604
AUTOMATIC LAND SYNOP RH2M (%) 68647 : out of range
Severe: rms_fgdepar=35.3851, expected range: 0.0000 19.6199
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 47823 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=307.1604, expected range: 0.0000 83.1017
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 47843 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=327.9411, expected range: 0.0000 105.9772
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 47836 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=511.5894, expected range: -131.6881 78.7288
Severe: rms_fgdepar=517.4003, expected range: 0.0000 91.3215
Severe: avg_pge=0.8269, expected range: -0.3009 0.4613
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 47817 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=316.6633, expected range: 0.0000 115.1961
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 47827 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=482.4278, expected range: 0.0000 65.4658
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 47837 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=625.7880, expected range: -57.0932 69.0786
Severe: rms_fgdepar=629.1373, expected range: 0.0000 90.9884
Severe: avg_pge=0.8880, expected range: -0.0941 0.1252
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 47818 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=301.9518, expected range: 0.0000 97.4446
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 47838 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=345.3647, expected range: 0.0000 106.5636
All AUTOMATIC LAND SYNOP WMO BLOCK 17 : all data missing
Severe: obs_number=0, expected range: 52.15 373.61
All AUTOMATIC LAND SYNOP WMO BLOCK 18 : all data missing
Severe: obs_number=0, expected range: 32.45 237.58
MANUAL LAND SYNOP RH2M (%) 67280 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9950, expected range: -1.9247 0.7500
MANUAL LAND SYNOP RH2M (%) 62124 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=59.3969, expected range: -35.8616 71.8317
Severe: rms_fgdepar=59.4460, expected range: 0.0000 66.9463
Severe: avg_pge=1.0000, expected range: -1.6069 0.7500
MANUAL LAND SYNOP RH2M (%) 66285 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=52.6330, expected range: 35.4507 55.3872
Severe: rms_fgdepar=52.6330, expected range: 35.4544 55.4722
BUFR LAND SYNOP RH2M (%) 72445 : out of range
Severe: rms_fgdepar=31.3236, expected range: 0.0000 17.0428
BUFR LAND SYNOP RH2M (%) 51656 : out of range
Severe: rms_fgdepar=38.5855, expected range: 9.4109 38.3836
Severe: avg_pge=0.9223, expected range: -0.8573 0.7500
BUFR LAND SYNOP RH2M (%) 67327 : out of range
Severe: rms_fgdepar=38.3064, expected range: 0.0000 20.9122
BUFR LAND SYNOP RH2M (%) 51777 : out of range
Severe: avg_pge=0.9825, expected range: -2.2630 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 04861 : out of range
Severe: avg_pge=0.8050, expected range: -0.5643 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 36736 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8005, expected range: -0.9363 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 76256 : out of range
Severe: rms_fgdepar=361.8657, expected range: 0.0000 308.2079
Severe: avg_pge=0.8048, expected range: -0.6146 0.7500
ship
AUTOMATIC SHIP WIND VECTOR DIFF (M/S) 62132 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8565, expected range: -0.8760 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OWSC2 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=581.4969, expected range: 11.0814 1026.5447
Severely_persistent: rms_fgdepar=581.4969, expected range: 11.0814 1026.5447
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRG03 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=709.6661, expected range: 603.8261 1288.4915
Severely_persistent: rms_fgdepar=709.6661, expected range: 603.8261 1288.4915
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3ETR7 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=597.5624, expected range: 298.5810 1080.0042
Severely_persistent: rms_fgdepar=597.5624, expected range: 298.5810 1080.0042
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HA5028 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=617.2288, expected range: 0.0000 1355.4524
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WTED : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=734.1580, expected range: -1486.2226 1176.5631
Severely_persistent: rms_fgdepar=734.5337, expected range: -1150.3386 1483.2948
Severely_persistent: avg_pge=0.8614, expected range: -1.5791 0.7500
SHIP SURFACE PRESSURE (PA) 9HA3047 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8010, expected range: -0.9461 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) V7DQ4 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=22.5189, expected range: -16.2403 29.4134
Severe: rms_fgdepar=22.5189, expected range: 0.0000 29.4051
Severe: avg_pge=0.9278, expected range: -0.9759 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) PHDL : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=25.8548, expected range: -14.8073 24.5728
Severe: rms_fgdepar=25.8548, expected range: 0.0000 24.5607
Severe: avg_pge=0.9354, expected range: -1.0044 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) KS1031 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=376.5619, expected range: 0.0000 108.7175
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6FN4 : out of range
Severe: rms_fgdepar=377.9461, expected range: 0.0000 180.4707
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7A5205 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=546.3342, expected range: 127.2863 610.2691
Severe: rms_fgdepar=546.3342, expected range: 127.2620 610.4613
Severe: avg_pge=0.8094, expected range: 0.5254 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VROO6 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=762.4308, expected range: 507.2592 1278.6876
Severe: rms_fgdepar=762.4308, expected range: 516.1757 1272.5875
BUFR SHIP SYNOP SURFACE PRESSURE (PA) ZCDH7 : out of range
Severe: avg_fgdepar=-621.5790, expected range: -854.7692 1140.5202
Severe: rms_fgdepar=621.5790, expected range: 0.0000 841.7971
Severe: avg_pge=0.8385, expected range: -1.0573 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) : out of range
Severe: avg_fgdepar=597.8465, expected range: -216.6465 527.1735
Severe: rms_fgdepar=781.2086, expected range: 0.0000 536.4437
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WACW : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=797.3231, expected range: 563.0604 826.8045
Severe: rms_fgdepar=797.3231, expected range: 563.1511 826.9085
buoy
MOORED BUOYS SURFACE PRESSURE (PA) 4200085 : out of range
Severe: rms_fgdepar=386.5568, expected range: 0.0000 181.8167
DRIFTING BUOYS SURFACE PRESSURE (PA) 1801556 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=431.8268, expected range: 0.0000 93.7574
metar
METAR SURFACE PRESSURE (PA) RJFK : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=408.3949, expected range: 0.0000 84.2873
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=-787.7758, expected range: -778.9206 -768.4016
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=787.7765, expected range: 768.5765 778.7875
BUFR LAND SYNOP SNOW (CM) _MF12FF7 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=55.8182, expected range: 33.0063 62.6269
BUFR LAND SYNOP SNOW (CM) _MF12FF7 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=55.8423, expected range: 34.3819 61.9586
BUFR LAND SYNOP SNOW (CM) _MI1F9AC : out of range
26 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=58.9545, expected range: 47.2368 56.1189
BUFR LAND SYNOP SNOW (CM) _MI1F9AC : out of range
26 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=60.1285, expected range: 47.7549 56.7659
t2m
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
26 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-17.4327, expected range: -21.6827 -12.4762
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
26 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=17.4385, expected range: 12.5457 21.6825
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
34 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-15.2489, expected range: -20.3053 -12.2429
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
34 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=15.4268, expected range: 12.2716 20.3008
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 51777 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-13.0102, expected range: -31.1488 20.3659
Severe: rms_fgdepar=13.0102, expected range: 0.0000 24.8522
METAR 2M TEMPERATURE (K) KWRB : out of range
Severe: rms_fgdepar=11.3079, expected range: 0.0000 4.8043
METAR 2M TEMPERATURE (K) UGMS : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=12.7756, expected range: 7.1460 13.1542
Severe: rms_fgdepar=12.8091, expected range: 7.2111 13.2209
BUFR LAND SYNOP 2M TEMPERATURE (K) 89504 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=13.4026, expected range: 3.7181 15.2955
Severe: rms_fgdepar=13.4875, expected range: 4.2891 15.0357