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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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

Ensemble Data Assimilation at 2022-01-15 12:00

amsua
NOAA 19 AMSUA ALL SKY RADIANCES CHANNEL 10 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1524, expected range: 0.0516 0.0944
METOP-B AMSUA ALL SKY RADIANCES CHANNEL 13 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: stdev_norm_fgdepar=0.8029, expected range: 0.5557 0.6563
METOP-C AMSUA ALL SKY RADIANCES CHANNEL 13 : out of range
1 times in the last 10 days for at least one item
Severely_persistent: stdev_norm_fgdepar=0.7247, expected range: 0.5309 0.6261
Severely_persistent: avg_biascorr=-0.2979, expected range: -0.2526 -0.2284
Severe: stdev_norm_fgdepar=0.6697, expected range: 0.5164 0.5753
NOAA 19 AMSUA ALL SKY RADIANCES CHANNEL 11 : out of range
3 times in the last 10 days for at least one item
Severe: stdev_norm_fgdepar=0.8101, expected range: 0.6420 0.7338
Slight: stdev_norm_fgdepar=0.8076, expected range: 0.6624 0.7626
NOAA 19 AMSUA ALL SKY RADIANCES CHANNEL 12 : out of range
1 times in the last 10 days for at least one item
Severe: stdev_norm_fgdepar=0.8162, expected range: 0.6587 0.7161
Slight: stdev_norm_fgdepar=0.8106, expected range: 0.6708 0.7795
NOAA 19 AMSUA ALL SKY RADIANCES CHANNEL 13 : out of range
1 times in the last 10 days for at least one item
Severe: stdev_norm_fgdepar=0.7044, expected range: 0.5477 0.6117
NOAA 19 AMSUA ALL SKY RADIANCES CHANNEL 14 : out of range
1 times in the last 10 days for at least one item
Severe: stdev_norm_fgdepar=0.6906, expected range: 0.5568 0.6092
METOP-C AMSUA ALL SKY RADIANCES CHANNEL 11 : out of range
Severe: stdev_norm_fgdepar=0.7936, expected range: 0.6485 0.7238
METOP-C AMSUA ALL SKY RADIANCES CHANNEL 10 : out of range
Severe: stdev_norm_fgdepar=0.8771, expected range: 0.7390 0.8024
Slight: stdev_norm_fgdepar=0.8741, expected range: 0.7403 0.8404
METOP-C AMSUA ALL SKY RADIANCES CHANNEL 12 : out of range
1 times in the last 10 days for at least one item
Severe: stdev_norm_fgdepar=0.7537, expected range: 0.6132 0.6599
Considerable: stdev_norm_fgdepar=0.7830, expected range: 0.6299 0.7236
METOP-C AMSUA ALL SKY RADIANCES CHANNEL 14 : out of range
1 times in the last 10 days for at least one item
Severe: stdev_norm_fgdepar=0.6432, expected range: 0.5226 0.5693
NOAA 18 AMSUA ALL SKY RADIANCES CHANNEL 12 : out of range
Considerable: stdev_norm_fgdepar=0.8622, expected range: 0.6966 0.7946
METOP-B AMSUA ALL SKY RADIANCES CHANNEL 10 : out of range
Considerable: stdev_norm_fgdepar=0.9262, expected range: 0.8040 0.8798
METOP-B AMSUA ALL SKY RADIANCES CHANNEL 11 : out of range
Considerable: stdev_norm_fgdepar=0.8061, expected range: 0.6645 0.7466
METOP-B AMSUA ALL SKY RADIANCES CHANNEL 12 : out of range
Considerable: stdev_norm_fgdepar=0.8195, expected range: 0.6695 0.7667
NOAA 15 AMSUA ALL SKY RADIANCES CHANNEL 12 : out of range
Slight: stdev_norm_fgdepar=0.8300, expected range: 0.6695 0.7870
NOAA 18 AMSUA ALL SKY RADIANCES CHANNEL 10 : out of range
Slight: stdev_norm_fgdepar=0.9934, expected range: 0.8494 0.9543
NOAA 18 AMSUA ALL SKY RADIANCES CHANNEL 11 : out of range
Slight: stdev_norm_fgdepar=0.8443, expected range: 0.6747 0.7938
NOAA 18 AMSUA ALL SKY RADIANCES CHANNEL 13 : out of range
Slight: stdev_norm_fgdepar=0.7515, expected range: 0.5910 0.7033
METOP-B AMSUA ALL SKY RADIANCES CHANNEL 9 : out of range
Slight: stdev_norm_fgdepar=0.9558, expected range: 0.8517 0.8926
METOP-C AMSUA ALL SKY RADIANCES CHANNEL 9 : out of range
Slight: stdev_norm_fgdepar=0.8785, expected range: 0.7624 0.8515
iasi
METOP-B IASI RADIANCES CHANNEL 183 : out of range
Severe: stdev_fgdepar=0.3074, expected range: 0.2579 0.2842
METOP-B IASI RADIANCES CHANNEL 301 : out of range
Severe: stdev_fgdepar=0.3075, expected range: 0.2677 0.2900
METOP-B IASI RADIANCES (35 channels affected) : out of range
Severe: stdev_fgdepar=0.4348, expected range: 0.3055 0.3605
METOP-C IASI RADIANCES CHANNEL 66 : out of range
Severe: stdev_fgdepar=0.3498, expected range: 0.3031 0.3289
METOP-C IASI RADIANCES (35 channels affected) : out of range
Severe: stdev_fgdepar=0.4212, expected range: 0.2975 0.3313
METOP-B IASI RADIANCES CHANNEL 113 : out of range
Considerable: stdev_fgdepar=0.3428, expected range: 0.2781 0.3193
METOP-B IASI RADIANCES CHANNEL 125 : out of range
Considerable: stdev_fgdepar=0.3377, expected range: 0.2743 0.3117
METOP-B IASI RADIANCES CHANNEL 131 : out of range
Considerable: stdev_fgdepar=0.3337, expected range: 0.2654 0.3061
METOP-B IASI RADIANCES CHANNEL 138 : out of range
Considerable: stdev_fgdepar=0.3351, expected range: 0.2587 0.3075
METOP-B IASI RADIANCES CHANNEL 151 : out of range
Considerable: stdev_fgdepar=0.3234, expected range: 0.2557 0.2992
METOP-B IASI RADIANCES CHANNEL 163 : out of range
Considerable: stdev_fgdepar=0.3187, expected range: 0.2549 0.2950
METOP-B IASI RADIANCES CHANNEL 170 : out of range
Considerable: stdev_fgdepar=0.3128, expected range: 0.2538 0.2893
METOP-B IASI RADIANCES CHANNEL 189 : out of range
Considerable: stdev_fgdepar=0.3030, expected range: 0.2520 0.2818
METOP-B IASI RADIANCES CHANNEL 303 : out of range
Considerable: stdev_fgdepar=0.3301, expected range: 0.2669 0.3057
METOP-C IASI RADIANCES CHANNEL 133 : out of range
Considerable: stdev_fgdepar=0.2960, expected range: 0.2577 0.2803
METOP-C IASI RADIANCES CHANNEL 189 : out of range
Considerable: stdev_fgdepar=0.2883, expected range: 0.2372 0.2699
METOP-C IASI RADIANCES CHANNEL 195 : out of range
Considerable: stdev_fgdepar=0.2777, expected range: 0.2404 0.2622
METOP-C IASI RADIANCES CHANNEL 301 : out of range
Considerable: stdev_fgdepar=0.2907, expected range: 0.2464 0.2748
METOP-B IASI RADIANCES (25 channels affected) : out of range
Slight: stdev_fgdepar=0.3724, expected range: 0.3283 0.3539
METOP-C IASI RADIANCES (30 channels affected) : out of range
Slight: stdev_fgdepar=0.3535, expected range: 0.3084 0.3377
cris
NOAA20 CRIS RADIANCES CHANNEL 26 : out of range
Severe: stdev_fgdepar=0.1974, expected range: 0.1598 0.1807
NOAA20 CRIS RADIANCES CHANNEL 39 : out of range
Severe: stdev_fgdepar=0.1588, expected range: 0.1149 0.1381
NOAA20 CRIS RADIANCES CHANNEL 51 : out of range
Severe: stdev_fgdepar=0.1460, expected range: 0.0999 0.1235
NOAA20 CRIS RADIANCES CHANNEL 54 : out of range
Severe: stdev_fgdepar=0.1378, expected range: 0.0981 0.1170
NOAA20 CRIS RADIANCES CHANNEL 57 : out of range
Severe: stdev_fgdepar=0.1351, expected range: 0.0964 0.1161
NOAA20 CRIS RADIANCES (33 channels affected) : out of range
Severe: stdev_fgdepar=0.2584, expected range: 0.0812 0.1481
NOAA20 CRIS RADIANCES CHANNEL 1185 : out of range
3 times in the last 10 days for at least one item
Severe: avg_biascorr=0.1249, expected range: 0.1572 0.1917
NOAA20 CRIS RADIANCES CHANNEL 1221 : out of range
3 times in the last 10 days for at least one item
Severe: avg_biascorr=0.1743, expected range: 0.2039 0.2425
NOAA20 CRIS RADIANCES CHANNEL 1234 : out of range
3 times in the last 10 days for at least one item
Severe: avg_biascorr=-0.0191, expected range: 0.0108 0.0482
NOAA20 CRIS RADIANCES CHANNEL 1238 : out of range
3 times in the last 10 days for at least one item
Severe: avg_biascorr=0.0319, expected range: 0.0607 0.0968
NOAA20 CRIS RADIANCES CHANNEL 1267 : out of range
3 times in the last 10 days for at least one item
Severe: avg_biascorr=0.1784, expected range: 0.2075 0.2371
NOAA20 CRIS RADIANCES CHANNEL 1268 : out of range
3 times in the last 10 days for at least one item
Severe: avg_biascorr=0.1292, expected range: 0.1563 0.1817
NOAA20 CRIS RADIANCES CHANNEL 20 : out of range
Considerable: stdev_fgdepar=0.2051, expected range: 0.1745 0.1935
NOAA20 CRIS RADIANCES CHANNEL 42 : out of range
Considerable: stdev_fgdepar=0.1569, expected range: 0.1061 0.1358
NOAA20 CRIS RADIANCES CHANNEL 45 : out of range
Considerable: stdev_fgdepar=0.1607, expected range: 0.1045 0.1395
NOAA20 CRIS RADIANCES CHANNEL 60 : out of range
Considerable: stdev_fgdepar=0.1342, expected range: 0.0902 0.1177
NOAA20 CRIS RADIANCES CHANNEL 61 : out of range
Considerable: stdev_fgdepar=0.1332, expected range: 0.0909 0.1177
NOAA20 CRIS RADIANCES (23 channels affected) : out of range
Slight: stdev_fgdepar=0.2060, expected range: 0.1648 0.1936
mhs
METOP-B MHS ALLSKY RADIANCES CHANNEL 5 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: obs_number=5876.0000, expected range: 6595.8093 6684.8618
mwhs2
FY-3D MWHS2 ALLSKY RADIANCES CHANNEL 4 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_norm_fgdepar=-0.5788, expected range: -0.1862 0.1625
Severely_persistent: stdev_norm_fgdepar=0.8757, expected range: 0.6253 0.7109
Severely_persistent: avg_biascorr=-3.3047, expected range: -2.7281 -2.1322
FY-3D MWHS2 ALLSKY RADIANCES CHANNEL 6 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_norm_fgdepar=-1.0053, expected range: -0.3295 0.3362
Severely_persistent: stdev_norm_fgdepar=1.1133, expected range: 0.5700 0.8143
Severely_persistent: avg_biascorr=-0.0117, expected range: 1.5698 2.2306
FY-3D MWHS2 ALLSKY RADIANCES CHANNEL 5 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: stdev_norm_fgdepar=1.0524, expected range: 0.6268 0.7519
Severely_persistent: avg_biascorr=-1.7742, expected range: -0.4450 0.1240
Severely_persistent: avg_norm_fgdepar=-0.9614, expected range: -0.1471 0.1652
FY-3D MWHS2 ALLSKY RADIANCES CHANNEL 2 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-2.3335, expected range: -1.8246 -1.1961
atms
NPP ATMS RADIANCES CHANNEL 10 : out of range
1 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2329, expected range: -0.2801 -0.2579
Slight: stdev_fgdepar=0.1852, expected range: 0.1618 0.1798
NPP ATMS RADIANCES CHANNEL 11 : out of range
1 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1321, expected range: -0.2330 -0.2025
Slight: stdev_fgdepar=0.2270, expected range: 0.1899 0.2167
NOAA20 ATMS RADIANCES CHANNEL 11 : out of range
1 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=0.1933, expected range: 0.1592 0.1783
Slight: stdev_fgdepar=0.1961, expected range: 0.1603 0.1856
NOAA20 ATMS RADIANCES CHANNEL 10 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.3500, expected range: -0.4498 -0.3931
Slight: stdev_fgdepar=0.1554, expected range: 0.1297 0.1509
NPP ATMS RADIANCES CHANNEL 13 : out of range
4 times in the last 10 days for at least one item
Severe: stdev_fgdepar=0.3857, expected range: 0.3070 0.3489
NPP ATMS RADIANCES (5 channels affected) : out of range
Severe: stdev_fgdepar=0.5924, expected range: 0.4181 0.4848
NPP ATMS RADIANCES CHANNEL 12 : out of range
Slight: stdev_fgdepar=0.2621, expected range: 0.2116 0.2490
NPP ATMS RADIANCES CHANNEL 14 : out of range
2 times in the last 10 days for at least one item
Slight: stdev_fgdepar=0.5732, expected range: 0.4367 0.5511
NOAA20 ATMS RADIANCES CHANNEL 12 : out of range
1 times in the last 10 days for at least one item
Slight: stdev_fgdepar=0.2335, expected range: 0.1782 0.2193
NOAA20 ATMS RADIANCES CHANNEL 14 : out of range
8 times in the last 10 days for at least one item
Slight: stdev_fgdepar=0.5324, expected range: 0.3970 0.5204
amdar
ADS-C WIND VECTOR DIFF (M/S) 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 251.0811