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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-09-26 12:00

cris
NOAA20 CRIS RADIANCES CHANNEL 108 : out of range
Considerable: avg_fgdepar=0.0018, expected range: 0.0149 0.0370
airs
AQUA AIRS RADIANCES CHANNEL 110 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0485, expected range: -0.1040 -0.0727
AQUA AIRS RADIANCES CHANNEL 129 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1351, expected range: -0.1853 -0.1793
Severely_persistent: avg_biascorr=-0.3002, expected range: -0.2300 -0.1988
AQUA AIRS RADIANCES CHANNEL 69 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1807, expected range: -0.2932 -0.2410
AQUA AIRS RADIANCES CHANNEL 116 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0703, expected range: -0.1469 -0.1103
Severely_persistent: avg_biascorr=-0.1937, expected range: -0.1452 -0.1056
AQUA AIRS RADIANCES CHANNEL 128 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1737, expected range: -0.1094 -0.0765
AQUA AIRS RADIANCES CHANNEL 99 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1061, expected range: -0.0780 -0.0515
AQUA AIRS RADIANCES CHANNEL 138 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0740, expected range: -0.2955 -0.1068
mhs
NOAA-19 MHS ALLSKY RADIANCES CHANNEL 5 : out of range
1 times in the last 10 days for at least one item
Slight: obs_number=26993.0000, expected range: 28459.5577 31001.9717
mwhs2
All FY-3C MWHS2 ALLSKY ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 4239.92 26412.04
FY-3D MWHS2 ALLSKY RADIANCES (5 channels affected) : out of range
Severe: obs_number=11839.0000, expected range: 49919.6039 61781.5726
FY-3D MWHS2 ALLSKY RADIANCES CHANNEL 13 : out of range
Considerable: stdev_norm_fgdepar=0.5800, expected range: 0.6358 0.7220
FY-3D MWHS2 ALLSKY RADIANCES CHANNEL 12 : out of range
Slight: stdev_norm_fgdepar=0.6045, expected range: 0.6443 0.7279
atms
NPP ATMS RADIANCES CHANNEL 12 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2478, expected range: -0.2092 -0.1656
NPP ATMS RADIANCES CHANNEL 9 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.5617, expected range: -0.4580 -0.3914
NOAA20 ATMS RADIANCES CHANNEL 8 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.7291, expected range: -0.5950 -0.5695
ssmis
DMSP-17 SSMIS RADIANCES CHANNEL 17 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-2.6093, expected range: -3.0056 -2.8491
DMSP-17 SSMIS RADIANCES CHANNEL 11 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_norm_fgdepar=-0.1706, expected range: -0.1309 -0.0868
resat
NOAA-19 SBUV OZONE, TOP (21 pressure layers affected) : out of range
19 times in the last 10 days for at least one item
Severely_persistent: obs_number=1.0000, expected range: 51.2578 65.5885
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 10-11 (HPA) : out of range
21 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=0.0000, expected range: 0.0040 0.0062
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 60-61 (HPA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=0.0253, expected range: -0.0626 -0.0224
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=3.3733, expected range: 2.8105 3.3217
Radiosondes
LAND TEMP Q (G/KG) 38341 PRESSURE LAYER 900-1200 (HPA) : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=6.6653, expected range: -1.0468 14.0546
Severely_persistent: rms_fgdepar=6.6653, expected range: 0.0000 14.0370
LAND TEMP TEMPERATURE (K) 83612 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=8.0137, expected range: 0.9075 2.5810
Severe: avg_pge=0.8144, expected range: -0.6507 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 32389 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_fgdepar=26.8482, expected range: -0.9339 8.1897
Severe: rms_fgdepar=28.2047, expected range: 0.0000 9.1573
Severe: avg_pge=0.8681, expected range: -0.3956 0.6518
LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : missing
Severe: obs_number=0.0000, expected range: 0.0000 957.4251
LAND TEMP Q (G/KG) 91348 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=2.0153, expected range: 0.0750 1.1591
HIGH RESO LAND TEMP TEMPERATURE (K) 29698 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=8.8918, expected range: 0.0000 7.0084
Severe: avg_pge=0.8987, expected range: -0.9075 0.7500
HIGH RESO LAND TEMP TEMPERATURE (K) 28661 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=10.1456, expected range: 0.0000 1.5635
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_fgdepar=-3.9234, expected range: -0.9298 0.8081
Severe: rms_fgdepar=6.9630, expected range: 0.0000 1.6072
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=1.1509, expected range: 0.0000 0.4171
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: obs_number=350.0000, expected range: 270.9049 278.3451
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 88 : all data missing
Severe: obs_number=0, expected range: 0.00 600.17
All HIGH RESO SEA TEMP ALL LAYERS Tropics : all data missing
Severe: obs_number=0, expected range: 53.30 330.45
All HIGH RESO SEA TEMP ALL LAYERS South Atlantic : all data missing
Severe: obs_number=0, expected range: 150.63 167.37
All BUFR TEMP DESCENT ALL LAYERS Tropics : all data missing
Severe: obs_number=0, expected range: 83.05 99.95
All BUFR TEMP DESCENT ALL LAYERS South Atlantic : all data missing
Severe: obs_number=0, expected range: 83.63 100.37
HIGH RESO LAND TEMP TEMPERATURE (K) (3 pressure layers affected) : out of range
Considerable: obs_number=363.0000, expected range: 444.0477 467.9523
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU1722 PRESSURE LAYER 0-300 (HPA) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=21.6592, expected range: -22.2236 50.0172
Severely_persistent: rms_fgdepar=24.5924, expected range: 0.0000 54.2384
Severely_persistent: avg_pge=0.8193, expected range: -0.0440 0.7500
AMDAR TEMPERATURE (K) JP9Z58UZ PRESSURE LAYER 0-300 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=9.8468, expected range: -15.3321 17.4107
Severe: rms_fgdepar=9.8468, expected range: -14.2888 17.3183
Severe: avg_pge=0.8961, expected range: -0.9869 0.7500
WIGOS AMDAR TEMPERATURE (K) LEBUNVZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=6.2095, expected range: 0.0000 1.2962
Severe: avg_pge=0.8180, expected range: -0.2171 0.2426
ADS-C WIND VECTOR DIFF (M/S) 0DIBA0BA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.1778, expected range: 0.0000 8.8980
airep
AIREP WIND VECTOR DIFF (M/S) AVA120 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=25.5126, expected range: 0.8986 5.7524
AIREP WIND VECTOR DIFF (M/S) ETD141 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=25.3463, expected range: -0.2300 5.5423
Severe: rms_fgdepar=31.5469, expected range: 0.0000 6.5860
AIREP WIND VECTOR DIFF (M/S) AMX003 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.4641, expected range: 0.0000 6.9588
AIREP WIND VECTOR DIFF (M/S) ETH575 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=20.1587, expected range: 0.0000 8.8266
AIREP WIND VECTOR DIFF (M/S) AAL719 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.7095, expected range: 0.0000 7.2562
AIREP WIND VECTOR DIFF (M/S) LOT6F PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=21.0393, expected range: -2.4712 9.1348
Severe: rms_fgdepar=23.2169, expected range: 0.0000 11.3773
AIREP WIND VECTOR DIFF (M/S) THY13T PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=25.7565, expected range: 0.0000 7.8503
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : missing
3 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 0.0000 1216.4126
JAPANESE WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : missing
Severe: obs_number=0.0000, expected range: 0.0000 576.5365
Severe: obs_number=0.0000, expected range: 0.0000 576.5365
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 17880 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8479, expected range: 0.2268 0.7500
MANUAL LAND SYNOP RH2M (%) 66285 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=53.1978, expected range: 33.2998 67.6484
Severely_persistent: rms_fgdepar=53.5530, expected range: 33.9311 67.2835
AUTOMATIC LAND SYNOP RH2M (%) 35793 : out of range
Severe: rms_fgdepar=35.5565, expected range: 0.0000 13.9126
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 47971 : out of range
Severe: rms_fgdepar=518.9631, expected range: 0.0000 79.3433
MANUAL LAND SYNOP RH2M (%) 83671 : out of range
Severe: rms_fgdepar=41.0899, expected range: 0.0000 18.3725
MANUAL LAND SYNOP RH2M (%) 65503 : out of range
Severe: rms_fgdepar=37.2847, expected range: 0.0000 20.7787
MANUAL LAND SYNOP RH2M (%) 83708 : out of range
Severe: avg_fgdepar=50.6096, expected range: -15.7103 30.6509
Severe: rms_fgdepar=50.6096, expected range: 0.0000 33.4637
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83671 : out of range
Severe: rms_fgdepar=338.0653, expected range: 0.0000 142.1547
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 38895 : out of range
Severe: rms_fgdepar=614.3801, expected range: 2.5270 96.5819
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83616 : out of range
Severe: rms_fgdepar=414.4287, expected range: 0.0000 142.0048
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 67037 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=645.7721, expected range: 0.0000 198.4928
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83708 : out of range
Severe: rms_fgdepar=493.5533, expected range: 0.0000 164.3278
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83768 : out of range
Severe: rms_fgdepar=369.0306, expected range: 0.0000 117.1938
MANUAL LAND SYNOP Z (M) 38734 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9754, expected range: -1.6799 0.7500
BUFR LAND SYNOP RH2M (%) 04162 : out of range
Severe: rms_fgdepar=47.6357, expected range: 0.0000 45.1741
Severe: avg_pge=0.8774, expected range: -1.3896 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 81860 : out of range
Severe: avg_fgdepar=538.2368, expected range: -34.2147 308.2033
Severe: rms_fgdepar=635.5052, expected range: 0.0000 313.6682
BUFR LAND SYNOP SURFACE PRESSURE (PA) 86901 : out of range
Severe: rms_fgdepar=343.0416, expected range: 0.0000 126.3864
BUFR LAND SYNOP SURFACE PRESSURE (PA) 35605 : out of range
Severe: rms_fgdepar=329.3370, expected range: 0.0000 87.9364
BUFR LAND SYNOP SURFACE PRESSURE (PA) 86837 : out of range
Severe: rms_fgdepar=395.6986, expected range: 0.0000 164.8473
BUFR LAND SYNOP SURFACE PRESSURE (PA) 86899 : out of range
Severe: rms_fgdepar=357.2291, expected range: 0.0000 166.8119
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) V7OJ5 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8463, expected range: -0.8298 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7A5552 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=857.4807, expected range: 685.5484 1128.9810
Severely_persistent: rms_fgdepar=862.2931, expected range: 687.6937 1136.0565
BUFR SHIP SYNOP SURFACE PRESSURE (PA) KIAB : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=683.4676, expected range: 242.1855 976.4213
Severely_persistent: rms_fgdepar=683.5679, expected range: 242.1855 976.4213
Severely_persistent: avg_pge=0.8516, expected range: 0.6314 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V6210 : out of range
Severe: rms_fgdepar=462.8520, expected range: 0.0000 265.9513
Severe: avg_pge=0.8139, expected range: -0.6036 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRDW2 : out of range
Severe: avg_fgdepar=1002.2269, expected range: -589.2772 568.7002
Severe: rms_fgdepar=1002.2269, expected range: 0.0000 493.8729
Severe: avg_pge=0.8881, expected range: -0.7957 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRRZ8 : out of range
Severe: avg_fgdepar=1041.8455, expected range: -921.8218 1253.7323
Severe: rms_fgdepar=1041.8455, expected range: 0.0000 797.7129
Severe: avg_pge=0.9046, expected range: -1.0048 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101654 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=540.6538, expected range: -1417.2299 1131.1136
Severely_persistent: rms_fgdepar=540.8071, expected range: 0.0000 961.3593
Severely_persistent: avg_pge=0.9011, expected range: -0.7899 0.7500
DRIBU WIND VECTOR DIFF (M/S) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=55.0000, expected range: 34.8003 37.0944
DRIFTING BUOYS SURFACE PRESSURE (PA) 6401591 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=539.6588, expected range: 0.0000 280.5618
Severe: avg_pge=0.8470, expected range: -0.3154 0.3750
DRIFTING BUOYS SURFACE PRESSURE (PA) 4401572 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8180, expected range: -0.7950 0.7500
metar
AUTOMATIC METAR SURFACE PRESSURE (PA) LIRK : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=502.9497, expected range: -609.1767 1019.9697
Severely_persistent: rms_fgdepar=505.4817, expected range: 0.0000 1012.5582
METAR SURFACE PRESSURE (PA) SBDN : out of range
Severe: rms_fgdepar=369.4341, expected range: 0.0000 175.6461
METAR SURFACE PRESSURE (PA) SBLO : out of range
Severe: rms_fgdepar=348.5736, expected range: 0.0000 173.4221
METAR SURFACE PRESSURE (PA) SBGW : out of range
Severe: rms_fgdepar=330.1111, expected range: 0.0000 141.4372
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=-779.5336, expected range: -805.0888 -748.4437
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=779.5338, expected range: 749.0317 804.6806
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=52.7059, expected range: 41.5944 62.9559
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=53.4922, expected range: 42.2357 64.2032
t2m
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
30 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-16.1613, expected range: -21.7751 -7.0290
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
30 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=16.1877, expected range: 8.0962 21.7174
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.3361, expected range: -20.5675 -5.7719
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=13.3978, expected range: 5.7852 20.6968
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 51747 : out of range
Severe: avg_fgdepar=-12.2621, expected range: -21.4812 20.1703
Severe: rms_fgdepar=12.2621, expected range: 0.9532 13.0634
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-12.1583, expected range: -13.3994 -4.8561
Severe: rms_fgdepar=12.1687, expected range: 4.9709 13.4126
MANUAL LAND SYNOP 2M TEMPERATURE (K) 83648 : out of range
Severe: rms_fgdepar=10.1528, expected range: 0.0000 3.1497
METAR 2M TEMPERATURE (K) KNFL : out of range
Severe: avg_fgdepar=-13.0735, expected range: -4.3871 3.3828
Severe: rms_fgdepar=14.0251, expected range: 0.0000 5.6391
METAR 2M TEMPERATURE (K) UGMS : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=14.1070, expected range: 6.8238 12.3134
Severe: rms_fgdepar=14.1843, expected range: 6.7570 12.4962
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13804 : out of range
Severe: avg_fgdepar=12.4614, expected range: -51.5664 41.7657
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13804 : out of range
Severe: rms_fgdepar=12.4614, expected range: 8.8411 24.3943
BUFR LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-12.2270, expected range: -13.4100 -4.9505
Severe: rms_fgdepar=12.2362, expected range: 5.0594 13.4211
rh2m
MANUAL LAND SYNOP RH2M (%) 64461 : out of range
Severe: rms_fgdepar=38.7114, expected range: 0.0000 20.7258