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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-09-11 00:00

iasi
METOP-B IASI RADIANCES (13 channels affected) : out of range
3 times in the last 10 days for at least one item
Severe: avg_biascorr=0.2789, expected range: 0.2239 0.2388
All METOP-C IASI ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 22013.86 23678.01
cris
NOAA20 CRIS RADIANCES CHANNEL 173 : out of range
Considerable: avg_biascorr=-0.0349, expected range: -0.0315 -0.0269
mwhs2
FY-3C MWHS2 ALLSKY RADIANCES CHANNEL 3 : out of range
Severe: stdev_norm_fgdepar=0.8347, expected range: 0.7340 0.7729
FY-3C MWHS2 ALLSKY RADIANCES CHANNEL 4 : out of range
Severe: stdev_norm_fgdepar=0.8877, expected range: 0.7522 0.8070
Considerable: avg_norm_fgdepar=-0.1607, expected range: -0.0853 0.0531
gpsro
All TERRASAR-X GPSRO SETTING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 74.68 845.90
METOP-C GRAS SETTING HEIGHT 26-28 KM : out of range
Slight: obs_number=1052.0000, expected range: 1094.0257 1255.2243
METOP-C GRAS SETTING HEIGHT 28-30 KM : out of range
Slight: obs_number=1050.0000, expected range: 1093.6955 1255.5545
resat
AURA OMI OZONE, TOP PRESSURE LAYER 12-13 (HPA) : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=14.4854, expected range: 5.4444 9.6334
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1010-1011 (HPA) : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-4.0348, expected range: -3.3301 -3.2076
METOP-B GOME-2 OZONE, TOP PRESSURE LAYER 12-13 (HPA) : out of range
7 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=4.6726, expected range: 5.0442 5.4911
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=3.3808, expected range: 2.5146 3.3217
Radiosondes
HIGH RESO LAND TEMP TEMPERATURE (K) 17281 PRESSURE LAYER 900-1200 (HPA : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8978, expected range: -1.6601 0.7500
All HIGH RESO LAND TEMP ALL LAYERS South pole : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 451.65
LAND TEMP Q (G/KG) 31510 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.8024, expected range: 0.0000 2.1096
LAND TEMP WIND VECTOR DIFF (M/S) 42701 PRESSURE LAYER 600-900 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8794, expected range: -0.9656 0.7500
All LAND TEMP ALL LAYERS WMO BLOCK 61 : all data missing
Severe: obs_number=0, expected range: 30.71 186.85
HIGH RESO LAND TEMP Q (G/KG) 72632 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=2.2955, expected range: 0.0000 0.6125
HIGH RESO LAND TEMP Q (G/KG) 59431 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.9770, expected range: 0.1432 1.4964
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: 0.0000 278.2031
HIGH RESO LAND TEMP TEMPERATURE (K) 56778 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=6.1898, expected range: 0.3446 3.0089
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (2 pressure layers affected : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=454.0000, expected range: 538.6351 554.6149
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 20 : all data missing
Severe: obs_number=0, expected range: 130.47 157.81
amdar
AMDAR TEMPERATURE (K) ANZ20 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=6.6972, expected range: 0.0000 1.4850
TAMDAR WIND VECTOR DIFF (M/S) 00005154 PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=21.0834, expected range: 10.5107 23.8890
Severe: rms_fgdepar=21.3950, expected range: 11.0363 23.6635
WIGOS AMDAR TEMPERATURE (K) EMYENVBA (3 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.4319, expected range: 0.0000 1.3001
WIGOS AMDAR TEMPERATURE (K) EMYENVBA (2 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8483, expected range: -0.0800 0.0932
WIGOS AMDAR TEMPERATURE (K) CFRHPBRA PRESSURE LAYER 0-300 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8225, expected range: -0.7533 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) VJ3H1DBA (3 pressure layers affecte : out of range
Severe: avg_pge=0.8022, expected range: -1.2338 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) VJ3H1DBA PRESSURE LAYER 300-600 (HP : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=20.5776, expected range: 0.0000 36.4107
ADS-C WIND VECTOR DIFF (M/S) 05URYCJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=36.1244, expected range: 0.1223 6.6056
Severe: rms_fgdepar=36.1244, expected range: 0.0000 8.3885
airep
AIREP WIND VECTOR DIFF (M/S) THY13T PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=24.5229, expected range: 0.0000 23.1070
prof
JAPANESE WIND PROFILER VECTOR DIFF (M/S) 47912 PRESSURE LAYER 600-900 : out of range
Severe: avg_pge=0.8040, expected range: -0.7538 0.7500
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 17928 : out of range
21 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=530.2413, expected range: 185.0712 1078.0336
Severely_persistent: avg_pge=0.8034, expected range: 0.7020 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 86926 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-609.6945, expected range: -694.2268 -472.6122
Severely_persistent: rms_fgdepar=609.9408, expected range: 475.8472 693.0071
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71387 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8750, expected range: 0.7057 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 35157 : out of range
Severe: rms_fgdepar=37.4979, expected range: 0.0000 10.7176
AUTOMATIC LAND SYNOP RH2M (%) 68387 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=69.7172, expected range: -26.5170 49.3400
Severe: rms_fgdepar=69.7172, expected range: 0.0000 44.4638
Severe: avg_pge=0.9920, expected range: -0.1356 0.1661
AUTOMATIC LAND SYNOP RH2M (%) 36697 : out of range
Severe: rms_fgdepar=37.4345, expected range: 0.0000 16.8455
MANUAL LAND SYNOP RH2M (%) 76122 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8139, expected range: -1.3122 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 48924 : out of range
Severe: rms_fgdepar=426.1068, expected range: 0.0000 120.2105
BUFR LAND SYNOP RH2M (%) 36001 : out of range
Severe: rms_fgdepar=33.8603, expected range: 0.0000 12.3544
BUFR LAND SYNOP RH2M (%) 72464 : out of range
Severe: rms_fgdepar=38.7411, expected range: 0.0000 15.8248
BUFR LAND SYNOP RH2M (%) 72374 : out of range
Severe: avg_fgdepar=50.5479, expected range: -2.6570 10.0441
Severe: rms_fgdepar=50.5479, expected range: 0.0000 10.0441
Severe: avg_pge=0.9984, expected range: -0.0017 0.0078
BUFR LAND SYNOP RH2M (%) 60177 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9998, expected range: -0.0796 0.1047
BUFR LAND SYNOP RH2M (%) 72458 : out of range
Severe: rms_fgdepar=35.2949, expected range: 0.0000 16.4688
BUFR LAND SYNOP SURFACE PRESSURE (PA) 60200 : out of range
Severe: rms_fgdepar=455.8096, expected range: 0.0000 253.9710
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94451 : out of range
Severe: avg_fgdepar=1008.5676, expected range: -179.1849 137.0574
Severe: rms_fgdepar=1008.5676, expected range: 0.0000 136.1197
Severe: avg_pge=0.9388, expected range: -0.5500 0.6425
BUFR LAND SYNOP SURFACE PRESSURE (PA) 33761 : out of range
Severe: rms_fgdepar=393.7437, expected range: 0.0000 77.2079
BUFR LAND SYNOP SURFACE PRESSURE (PA) 91682 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8756, expected range: -1.3632 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 81833 : out of range
Severe: avg_pge=0.8052, expected range: 0.6440 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48353 : out of range
Severe: rms_fgdepar=376.0737, expected range: 0.0000 138.0538
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94444 : out of range
Severe: avg_fgdepar=-1011.4579, expected range: -128.6094 149.8214
Severe: rms_fgdepar=1011.4579, expected range: 0.0000 104.9316
Severe: avg_pge=0.9429, expected range: 0.0000 0.0000
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71476 : out of range
Severe: avg_pge=0.8705, expected range: 0.3258 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48927 : out of range
Severe: avg_fgdepar=-1070.4226, expected range: -215.4242 58.8157
Severe: rms_fgdepar=1070.4226, expected range: 0.0000 200.2957
Severe: avg_pge=0.9411, expected range: -0.6900 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 31137 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=485.4497, expected range: 0.0000 212.5081
BUFR LAND SYNOP SURFACE PRESSURE (PA) 36837 : out of range
Severe: rms_fgdepar=450.8785, expected range: 0.0000 71.6789
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94657 : out of range
Severe: rms_fgdepar=326.1746, expected range: 0.0000 177.1011
Severe: avg_pge=0.8359, expected range: -0.1300 0.1510
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
Considerable: obs_number=291.0000, expected range: 369.7920 395.9858
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 3FMI2 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9130, expected range: 0.5194 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3E3566 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=651.1017, expected range: -879.9292 1155.9319
Severely_persistent: rms_fgdepar=651.1017, expected range: 0.0000 717.6667
Severely_persistent: avg_pge=0.8321, expected range: -0.7724 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 7JWH : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=545.2111, expected range: 66.5105 809.9631
Severely_persistent: rms_fgdepar=545.2111, expected range: 65.9939 810.9786
Severely_persistent: avg_pge=0.8070, expected range: 0.3749 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9V5223 : out of range
Severe: avg_pge=0.8891, expected range: -1.3177 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) V7IU6 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=16.5998, expected range: 1.6577 16.0268
Severe: avg_pge=0.9000, expected range: 0.4752 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9HA4638 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=16.7127, expected range: 0.0000 11.8717
Severe: avg_pge=0.8112, expected range: -0.7609 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) TBWUK61 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-870.7403, expected range: -1770.6913 1658.4777
Severe: rms_fgdepar=870.7403, expected range: -1419.9799 1712.4346
Severe: avg_pge=0.8944, expected range: -1.1346 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) DIGX2 : out of range
Severe: rms_fgdepar=489.4549, expected range: 0.0000 111.9021
BUFR SHIP SYNOP SURFACE PRESSURE (PA) S6CH4 : out of range
Severe: rms_fgdepar=344.2661, expected range: 0.0000 174.6032
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6WK7 : out of range
Severe: avg_fgdepar=586.1945, expected range: -189.5177 611.9248
Severe: rms_fgdepar=586.1945, expected range: 0.0000 570.6598
Severe: avg_pge=0.8114, expected range: -0.7380 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VABC : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=674.4840, expected range: 43.8720 1562.2030
Severe: rms_fgdepar=687.7053, expected range: 49.1946 1561.0011
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 7JZN : out of range
Severe: avg_fgdepar=-1094.7581, expected range: -125.5688 31.4227
Severe: rms_fgdepar=1094.7581, expected range: 0.0000 125.5688
Severe: avg_pge=0.9189, expected range: -0.4288 0.5135
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WLIU : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8142, expected range: 0.6880 0.7500
buoy
DRIBU WIND VECTOR DIFF (M/S) 23454 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8899, expected range: -0.7828 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4601592 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=681.5176, expected range: -1098.2453 867.7077
Severely_persistent: rms_fgdepar=681.6831, expected range: 0.0000 1258.7955
Severely_persistent: avg_pge=0.9169, expected range: -1.6174 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2300593 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8080, expected range: 0.7176 0.7500
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=-774.3492, expected range: -774.1609 -771.5609
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=774.3493, expected range: 771.5611 774.1608
BUFR LAND SYNOP SNOW (CM) _MI1F9AC : out of range
24 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=57.0526, expected range: 38.5574 59.9008
BUFR LAND SYNOP SNOW (CM) _MI1F9AC : out of range
24 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=57.3411, expected range: 39.9274 60.0370
t2m
BUFR LAND SYNOP 2M TEMPERATURE (K) 80010 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=15.4614, expected range: -10.3960 23.5993
Severely_persistent: rms_fgdepar=15.9010, expected range: 0.6575 19.3386
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=-14.8285, expected range: -20.4342 -14.1148
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=14.8489, expected range: 14.1431 20.4345
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-12.3372, expected range: -20.7645 -11.8697
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=12.3602, expected range: 11.8951 20.7619
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 18212 : out of range
Severe: rms_fgdepar=10.1984, expected range: 0.2691 5.6540
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 68296 : out of range
Severe: avg_fgdepar=-12.4854, expected range: -7.6643 5.3731
Severe: rms_fgdepar=12.4854, expected range: 0.0000 7.5546
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 55279 : out of range
Severe: avg_fgdepar=12.1487, expected range: 2.6495 15.4892
Severe: rms_fgdepar=12.1487, expected range: 2.6495 15.4892
METAR 2M TEMPERATURE (K) SVBC : out of range
Severe: rms_fgdepar=12.0371, expected range: 0.0000 9.4303
METAR 2M TEMPERATURE (K) GMMD : out of range
Severe: rms_fgdepar=10.6442, expected range: 0.7999 3.6165
BUFR LAND SYNOP 2M TEMPERATURE (K) 68296 : out of range
Severe: avg_fgdepar=-12.5148, expected range: -7.8091 5.3674
Severe: rms_fgdepar=12.5148, expected range: 0.0000 7.7138
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
Considerable: obs_number=300.0000, expected range: 390.9269 418.4849
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 72792 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=34.9932, expected range: 0.0000 17.5612
AUTOMATIC LAND SYNOP RH2M (%) 60775 : out of range
Severe: rms_fgdepar=30.1784, expected range: 0.0000 15.1677
All BUFR LAND SYNOP WMO BLOCK 64 : all data missing
Severe: obs_number=0, expected range: 15.45 269.73