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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2021-02-20 12:00

amsua
METOP-A AMSUA RADIANCES (8 channels affected) : out of range
Considerable: obs_number=4000.0000, expected range: 4472.0663 5932.6396
mhs
All METOP-A MHS ALLSKY ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 13388.99 18555.71
ssmis
All DMSP-17 SSMIS ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 6275.41 18851.49
All DMSP-18 SSMIS ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 6141.73 18299.30
gpsro
COSMIC2-E3 GPSRO SETTING (21 impact heights affected) : out of range
Considerable: obs_number=1099.0000, expected range: 1456.4848 2582.9270
KOMPSAT-5 GPSRO SETTING HEIGHT 18-20 KM : out of range
Slight: stdev_norm_fgdepar=1.8201, expected range: 1.1192 1.6248
KOMPSAT-5 GPSRO SETTING HEIGHT 14-16 KM : out of range
Slight: avg_norm_fgdepar=-0.3675, expected range: -0.2333 0.1320
Atmospheric Motion Vector
METEOSAT-11 AMV VIS2 WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (H : out of range
Considerable: avg_fgdepar=1.2993, expected range: 1.4955 1.6638
GOES-16 AMV IR1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HPA) : out of range
Slight: avg_fgdepar=1.4220, expected range: 1.7583 2.3400
Radiosondes
LAND TEMP WIND VECTOR DIFF (M/S) 82332 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=17.8756, expected range: 0.0000 6.9018
LAND TEMP WIND VECTOR DIFF (M/S) 29282 (2 pressure layers affected) : out of range
Severe: avg_pge=0.8882, expected range: -0.5943 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 29282 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=15.2464, expected range: 0.0000 11.0956
LAND TEMP TEMPERATURE (K) 30635 PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8185, expected range: -1.6114 0.7500
LAND TEMP Q (G/KG) 65344 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=7.7438, expected range: 0.0000 4.2842
Severe: avg_fgdepar=7.6634, expected range: -0.7622 4.1712
LAND TEMP Q (G/KG) 83362 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=3.1974, expected range: 0.0000 1.5518
HIGH RESO LAND TEMP Q (G/KG) (2 pressure layers affected) : out of range
3 times in the last 10 days for at least one item
Severe: obs_number=97.0000, expected range: 185.6429 198.1071
Considerable: obs_number=367.0000, expected range: 453.2894 474.9606
HIGH RESO LAND TEMP TEMPERATURE (K) (3 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=135.0000, expected range: 241.8797 275.8703
Considerable: obs_number=267.0000, expected range: 346.4166 430.6945
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
Considerable: avg_fgdepar=-1.1336, expected range: -0.5269 0.4314
amdar
ADS-C TEMPERATURE (K) PRESSURE LAYER 300-600 (HPA) : missing
5 times in the last 10 days for at least one item
Severely_persistent: obs_number=0.0000, expected range: 0.0000 315.8287
All AMDAR ALL LAYERS South Atlantic : all data missing
Severe: obs_number=0, expected range: 29.89 342.12
AMDAR WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : missing
Severe: obs_number=0.0000, expected range: 1.2711 556.0352
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU0948 PRESSURE LAYER 900-1200 (HPA : out of range
Severe: rms_fgdepar=16.9994, expected range: 0.0000 7.1339
airep
AIREP WIND VECTOR DIFF (M/S) AAL9726 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=22.5555, expected range: 0.0000 23.0446
AIREP WIND VECTOR DIFF (M/S) UAL906 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=20.9905, expected range: 0.0000 15.7778
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 10103 PRESSURE LAYER 600-900 : out of range
Severe: avg_pge=0.8772, expected range: -0.1488 0.5266
Severe: rms_fgdepar=15.5087, expected range: 0.0000 8.2378
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 96147 PRESSURE LAYER 900-1200 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8808, expected range: -0.0203 0.7500
LAND PILOT WIND VECTOR DIFF (M/S) 82332 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=18.0206, expected range: 0.0000 7.8907
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 18133 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8224, expected range: -0.5628 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 18162 : out of range
26 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=756.8285, expected range: 490.7184 861.7077
Severely_persistent: avg_fgdepar=756.4397, expected range: 489.8713 861.4334
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 17841 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8135, expected range: 0.7508 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 18210 : out of range
23 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8862, expected range: -1.1615 0.7500
MANUAL LAND SYNOP RH2M (%) 42776 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9999, expected range: -1.2955 0.7500
Severely_persistent: rms_fgdepar=51.9096, expected range: 0.0000 110.6491
Severely_persistent: avg_fgdepar=51.9096, expected range: -8.1374 110.6491
MANUAL LAND SYNOP RH2M (%) 42915 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=1.0000, expected range: -0.2838 0.7500
Severely_persistent: rms_fgdepar=63.0578, expected range: 1.0624 84.3490
Severely_persistent: avg_fgdepar=63.0578, expected range: 1.0624 84.3490
AUTOMATIC LAND SYNOP RH2M (%) 93498 : out of range
Severe: rms_fgdepar=31.5200, expected range: 0.0000 17.6523
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=196.0000, expected range: 1722.9922 1755.0078
Severe: obs_number=247.0000, expected range: 1773.9899 1805.7879
Considerable: obs_number=53.0000, expected range: 67.1667 92.1667
Considerable: obs_number=1733.0000, expected range: 2991.3485 4933.4015
MANUAL LAND SYNOP RH2M (%) 65208 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=50.8356, expected range: 0.0000 78.8303
Severe: avg_fgdepar=50.8356, expected range: -112.0135 131.1400
MANUAL LAND SYNOP RH2M (%) 60765 : out of range
Severe: avg_pge=0.9899, expected range: -0.0718 0.0890
Severe: rms_fgdepar=50.8157, expected range: 0.0000 20.5114
Severe: avg_fgdepar=50.8109, expected range: -3.5720 20.4842
MANUAL LAND SYNOP RH2M (%) 42674 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9855, expected range: -1.2553 0.7500
MANUAL LAND SYNOP RH2M (%) 64454 : out of range
Severe: avg_pge=0.9831, expected range: -0.0050 0.0131
MANUAL LAND SYNOP RH2M (%) 38933 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=35.0540, expected range: 0.0000 13.0759
MANUAL LAND SYNOP RH2M (%) 76113 : out of range
Severe: avg_pge=0.9981, expected range: -0.5982 0.7065
Severe: rms_fgdepar=57.6892, expected range: 0.0000 68.1916
Severe: avg_fgdepar=57.6892, expected range: -30.5744 54.7445
MANUAL LAND SYNOP RH2M (%) 43291 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8696, expected range: -1.0666 0.7500
MANUAL LAND SYNOP RH2M (%) 42571 : out of range
Severe: rms_fgdepar=34.0966, expected range: 0.0000 10.2994
MANUAL LAND SYNOP RH2M (%) 42661 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9843, expected range: -1.4042 0.7500
MANUAL LAND SYNOP RH2M (%) 62011 : out of range
Severe: avg_pge=0.9420, expected range: -0.8830 0.7500
MANUAL LAND SYNOP RH2M (%) 83270 : out of range
Severe: rms_fgdepar=43.7488, expected range: 0.0000 22.1586
MANUAL LAND SYNOP RH2M (%) 12540 : out of range
Severe: rms_fgdepar=37.0016, expected range: 0.0000 15.3227
MANUAL LAND SYNOP RH2M (%) 62120 : out of range
Severe: avg_pge=0.9397, expected range: -0.6663 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=240.0000, expected range: 585.2859 630.4641
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40689 : out of range
Severe: avg_pge=0.9392, expected range: -0.6065 0.7500
Severe: rms_fgdepar=940.1480, expected range: 0.0000 156.3741
Severe: avg_fgdepar=-940.1480, expected range: -43.2378 156.3741
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 76256 : out of range
Severe: rms_fgdepar=351.8444, expected range: 0.0000 143.2649
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 61085 : out of range
Severe: avg_pge=0.9259, expected range: -0.3162 0.6889
Severe: rms_fgdepar=854.6074, expected range: 16.3854 203.3893
Severe: avg_fgdepar=854.1567, expected range: 5.6647 208.2643
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43335 : out of range
Severe: rms_fgdepar=364.5066, expected range: 0.0000 188.3453
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 98233 : out of range
Severe: rms_fgdepar=321.3619, expected range: 0.0000 136.6989
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 65420 : out of range
Severe: rms_fgdepar=706.6132, expected range: 0.0000 95.9532
BUFR LAND SYNOP RH2M (%) 81732 : out of range
Severe: avg_pge=1.0000, expected range: -0.0067 0.0162
Severe: rms_fgdepar=38.7097, expected range: 0.0000 25.0977
BUFR LAND SYNOP SURFACE PRESSURE (PA) 86532 : out of range
Severe: avg_pge=0.8479, expected range: -0.9609 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48802 : out of range
Severe: avg_pge=0.8006, expected range: -0.5446 0.7500
ship
AUTOMATIC SHIP WIND VECTOR DIFF (M/S) 44150 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8390, expected range: 0.2630 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HJD9 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8543, expected range: -0.2875 0.7500
Severely_persistent: rms_fgdepar=744.3865, expected range: 0.0000 1140.6317
Severely_persistent: avg_fgdepar=744.3865, expected range: -1416.8240 529.6791
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRTO7 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8318, expected range: -1.2392 0.7500
Severely_persistent: rms_fgdepar=597.5912, expected range: -960.8279 1344.0796
Severely_persistent: avg_fgdepar=597.5912, expected range: -1043.7983 1347.0194
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101627 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9293, expected range: -1.0550 0.7500
Severely_persistent: rms_fgdepar=741.7899, expected range: 0.0000 1128.4435
Severely_persistent: avg_fgdepar=-741.7605, expected range: -1321.4538 1171.9884
DRIFTING BUOYS SURFACE PRESSURE (PA) 4601840 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8044, expected range: -0.8386 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4401577 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8605, expected range: -0.0070 0.0078
Severe: rms_fgdepar=535.7163, expected range: 0.0000 61.4340
DRIFTING BUOYS SURFACE PRESSURE (PA) 4401574 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=539.5431, expected range: 0.0000 449.5414
metar
AUTOMATIC METAR SURFACE PRESSURE (PA) : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=129.0000, expected range: 417.9533 644.3996
snow
AUTOMATIC LAND SYNOP SNOW (CM) 71029 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=54.1918, expected range: 52.8918 54.5126
Severely_persistent: avg_fgdepar=-54.1918, expected range: -54.5126 -52.8918
AUTOMATIC LAND SYNOP SNOW (CM) 71576 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=52.4892, expected range: 50.3034 54.3479
Severely_persistent: avg_fgdepar=-52.4892, expected range: -54.3479 -50.3034
AUTOMATIC LAND SYNOP SNOW (CM) 71743 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=70.5683, expected range: 59.4866 76.9032
Severely_persistent: avg_fgdepar=-70.5683, expected range: -76.9032 -59.4866
MANUAL LAND SYNOP SNOW (CM) 71816 : out of range
28 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=65.1505, expected range: 60.7504 79.1129
Severely_persistent: avg_fgdepar=-65.1505, expected range: -79.1050 -60.7547
BUFR LAND SYNOP SNOW (CM) 01036 : out of range
26 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=116.8789, expected range: 57.2940 110.2646
Severely_persistent: avg_fgdepar=-116.8782, expected range: -110.1475 -57.3144
BUFR LAND SYNOP SNOW (CM) 71816 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=65.1403, expected range: 60.1601 79.4032
Severely_persistent: avg_fgdepar=-65.1403, expected range: -79.3985 -60.1619
BUFR LAND SYNOP SNOW (CM) 01091 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=90.3165, expected range: 69.2373 94.3667
Severely_persistent: avg_fgdepar=-90.3151, expected range: -94.3102 -69.2603
BUFR LAND SYNOP SNOW (CM) 01480 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=64.0977, expected range: 53.2391 66.6219
Severely_persistent: avg_fgdepar=-64.0977, expected range: -66.6262 -53.2305
AUTOMATIC LAND SYNOP SNOW (CM) 71742 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=55.9425, expected range: 19.1526 65.7843
Severe: avg_fgdepar=-55.9425, expected range: -65.7843 -19.1526
t2m
BUFR LAND SYNOP 2M TEMPERATURE (K) 27415 : out of range
32 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=12.4777, expected range: 9.9302 20.8617
Severely_persistent: avg_fgdepar=12.4698, expected range: 9.8918 20.8485
BUFR LAND SYNOP 2M TEMPERATURE (K) 02890 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=14.7025, expected range: 0.0000 18.8767
Severely_persistent: avg_fgdepar=-14.5096, expected range: -19.6525 6.4922
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=257.0000, expected range: 1591.8186 1686.6520
Considerable: obs_number=153.0000, expected range: 350.4897 627.0397
MANUAL LAND SYNOP 2M TEMPERATURE (K) 36736 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=13.9808, expected range: 0.0000 14.5284
Severe: avg_fgdepar=13.9117, expected range: -5.0644 14.7131
MANUAL LAND SYNOP 2M TEMPERATURE (K) 25335 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=13.3628, expected range: 0.0000 12.4317
Severe: avg_fgdepar=-13.3517, expected range: -13.7061 8.7257
METAR 2M TEMPERATURE (K) CYIV : out of range
Severe: rms_fgdepar=11.1042, expected range: 0.2438 5.9960
LAND TEMP 2M TEMPERATURE (K) 71081 : out of range
Severe: rms_fgdepar=13.5464, expected range: 0.0000 8.0476
Severe: avg_fgdepar=-13.5464, expected range: -8.9642 2.2359
BUFR LAND SYNOP 2M TEMPERATURE (K) 36736 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=13.9310, expected range: 0.0000 14.4660
Severe: avg_fgdepar=13.8617, expected range: -5.1144 14.6631
BUFR LAND SYNOP 2M TEMPERATURE (K) 25335 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=13.4635, expected range: 0.0000 12.5349
Severe: avg_fgdepar=-13.4530, expected range: -13.8120 8.6958
BUFR LAND SYNOP 2M TEMPERATURE (K) 02805 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=12.1558, expected range: 0.0000 16.6036
rh2m
AUTOMATIC LAND SYNOP RH2M (%) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=256.0000, expected range: 1534.5753 1724.9541
BUFR LAND SYNOP RH2M (%) : out of range
Considerable: obs_number=152.0000, expected range: 180.7148 218.8408