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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-09-20 12:00

iasi
METOP-B IASI RADIANCES CHANNEL 79 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2752, expected range: 0.3115 0.3362
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=0.2264, expected range: 0.2779 0.3105
METOP-B IASI RADIANCES CHANNEL 66 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2800, expected range: 0.3036 0.3266
METOP-B IASI RADIANCES CHANNEL 131 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.3306, expected range: 0.3647 0.3826
METOP-C IASI RADIANCES CHANNEL 178 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0793, expected range: -0.0354 0.0194
METOP-C IASI RADIANCES CHANNEL 1579 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0883, expected range: -0.0833 -0.0771
METOP-C IASI RADIANCES (29 channels affected) : out of range
Severe: avg_biascorr=0.0953, expected range: 0.1389 0.1762
airs
AQUA AIRS RADIANCES CHANNEL 104 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0288, expected range: -0.1539 -0.0869
AQUA AIRS RADIANCES CHANNEL 116 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0341, expected range: -0.1773 -0.1103
AQUA AIRS RADIANCES CHANNEL 128 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0002, expected range: -0.1362 -0.1007
Severely_persistent: avg_biascorr=-0.1075, expected range: -0.4005 -0.2828
AQUA AIRS RADIANCES CHANNEL 129 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1139, expected range: -0.2213 -0.1793
Severely_persistent: avg_biascorr=-0.0962, expected range: -0.3982 -0.2529
AQUA AIRS RADIANCES CHANNEL 69 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1409, expected range: -0.3553 -0.2410
Severely_persistent: avg_biascorr=-0.5712, expected range: -0.8346 -0.6894
AQUA AIRS RADIANCES CHANNEL 138 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0897, expected range: -0.1797 -0.1068
AQUA AIRS RADIANCES (12 channels affected) : out of range
Severe: avg_biascorr=-0.2274, expected range: -0.2047 -0.1818
atms
NPP ATMS RADIANCES CHANNEL 9 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.5534, expected range: -0.4580 -0.4553
ssmis
DMSP-17 SSMIS RADIANCES CHANNEL 11 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_norm_fgdepar=-0.1801, expected range: -0.1309 -0.0664
DMSP-18 SSMIS RADIANCES CHANNEL 7 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=4.7257, expected range: 3.7092 4.2196
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: avg_fgdepar=-0.0249, expected range: -0.0330 -0.0324
METOP-B GOME-2 OZONE, TOP PRESSURE LAYER 12-13 (HPA) : out of range
13 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=4.4419, expected range: 5.0442 5.5465
Radiosondes
LAND TEMP Q (G/KG) 38341 PRESSURE LAYER 900-1200 (HPA) : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=9.9838, expected range: -2.3959 11.9176
Severely_persistent: rms_fgdepar=9.9887, expected range: 0.0000 11.8950
Severely_persistent: avg_pge=0.8690, expected range: -0.2762 0.4447
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=3.4534, expected range: 0.9096 2.1882
LAND TEMP TEMPERATURE (K) 32540 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=-13.2401, expected range: -2.5106 1.9961
Severe: rms_fgdepar=13.2401, expected range: 0.0000 3.8391
Severe: avg_pge=0.9371, expected range: -0.2742 0.5030
LAND TEMP TEMPERATURE (K) 65503 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=26.4584, expected range: -2.0624 0.8986
Severe: rms_fgdepar=26.5236, expected range: 0.0000 3.0661
Severe: avg_pge=0.9284, expected range: -0.0441 0.0670
LAND TEMP Q (G/KG) 36872 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=6.9166, expected range: -0.3570 5.6637
Severe: rms_fgdepar=6.9166, expected range: 0.0000 5.8039
LAND TEMP Q (G/KG) 91334 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=5.2620, expected range: 0.0000 2.6643
HIGH RESO LAND TEMP TEMPERATURE (K) 57972 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=7.1442, expected range: 0.3824 1.8969
HIGH RESO LAND TEMP Q (G/KG) 28225 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.2454, expected range: 0.0000 1.2495
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: 155.32 166.28
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 Q (G/KG) JOHWUUBA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.3699, expected range: 0.0000 5.1363
WIGOS AMDAR Q (G/KG) GRBWUUZA PRESSURE LAYER 900-1200 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=6.0614, expected range: 0.0000 8.7217
WIGOS AMDAR WIND VECTOR DIFF (M/S) QBA2IJZA PRESSURE LAYER 900-1200 (H : out of range
Severe: rms_fgdepar=15.9388, expected range: 0.0000 4.5994
WIGOS AMDAR TEMPERATURE (K) EU1722 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=6.8520, expected range: 0.0000 1.2915
airep
AIREP WIND VECTOR DIFF (M/S) QTR42F PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.3628, expected range: 0.0841 7.7180
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 43371 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=21.2198, expected range: 0.0000 38.1671
LAND PILOT WIND VECTOR DIFF (M/S) 42867 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=15.4762, expected range: 0.4954 5.8200
synop
MANUAL LAND SYNOP RH2M (%) 62120 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9999, expected range: 0.3358 0.7500
MANUAL LAND SYNOP RH2M (%) 62124 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9960, expected range: -1.8033 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 68939 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=559.5503, expected range: -1450.4756 1743.6380
Severely_persistent: rms_fgdepar=559.5503, expected range: 0.0000 1429.5330
Severely_persistent: avg_pge=0.9225, expected range: -0.2255 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) : out of range
Severe: obs_number=181.0000, expected range: 1.4444 4.7778
AUTOMATIC LAND SYNOP RH2M (%) 68443 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=35.8705, expected range: 0.0000 4.7914
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 61931 : out of range
Severe: rms_fgdepar=431.3012, expected range: 0.0000 164.9749
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83522 : out of range
Severe: avg_pge=0.8018, expected range: 0.6701 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 76225 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=739.2634, expected range: -1399.9776 1716.1192
Severe: rms_fgdepar=739.2634, expected range: -1384.6819 1708.3083
Severe: avg_pge=0.8996, expected range: -1.9351 0.7500
MANUAL LAND SYNOP RH2M (%) 43324 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9343, expected range: -1.6343 0.7500
MANUAL LAND SYNOP RH2M (%) 42266 : out of range
Severe: rms_fgdepar=39.0629, expected range: 0.0000 33.3294
Severe: avg_pge=0.9638, expected range: -0.0327 0.0521
MANUAL LAND SYNOP RH2M (%) 82676 : out of range
Severe: rms_fgdepar=44.4183, expected range: 0.0000 30.2751
Severe: avg_pge=0.9252, expected range: -0.0288 0.0509
MANUAL LAND SYNOP RH2M (%) 83419 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=40.4997, expected range: 0.0000 13.3501
MANUAL LAND SYNOP Z (M) 38725 : out of range
Severe: avg_pge=0.9973, expected range: -0.6415 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24908 : out of range
Severe: rms_fgdepar=572.7137, expected range: 0.0000 67.9764
BUFR LAND SYNOP RH2M (%) 76040 : out of range
Severe: avg_pge=0.8367, expected range: -0.6600 0.7500
BUFR LAND SYNOP RH2M (%) 08221 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=46.2822, expected range: 0.0000 18.5887
BUFR LAND SYNOP RH2M (%) 86814 : out of range
Severe: rms_fgdepar=32.8293, expected range: 1.4283 12.2565
BUFR LAND SYNOP RH2M (%) 34394 : out of range
Severe: rms_fgdepar=49.5781, expected range: 0.0000 27.7697
Severe: avg_pge=1.0000, expected range: -0.9660 0.7500
BUFR LAND SYNOP RH2M (%) 35106 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=44.3072, expected range: 0.0000 26.4344
Severe: avg_pge=0.9996, expected range: -0.0037 0.0107
BUFR LAND SYNOP RH2M (%) 72539 : out of range
Severe: rms_fgdepar=47.8863, expected range: 0.0000 25.0833
Severe: avg_pge=0.8143, expected range: -0.0244 0.0369
BUFR LAND SYNOP RH2M (%) 34199 : out of range
Severe: avg_fgdepar=50.2829, expected range: -27.4977 26.1378
Severe: rms_fgdepar=50.2829, expected range: 0.0000 23.5813
Severe: avg_pge=0.9393, expected range: -0.0029 0.0099
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
Considerable: obs_number=586.0000, expected range: 680.0558 702.6942
ship
SHIP SURFACE PRESSURE (PA) 9HA3047 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8086, expected range: -0.7549 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OYGR2 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-577.2825, expected range: -793.4902 -432.7193
Severely_persistent: rms_fgdepar=577.2825, expected range: 433.4574 793.0039
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VDBY : out of range
Severe: rms_fgdepar=17.7794, expected range: 0.0000 10.4220
Severe: avg_pge=0.8661, expected range: -0.7037 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRRD7 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=610.4820, expected range: 201.2918 1153.2030
Severe: rms_fgdepar=610.4965, expected range: 199.7164 1162.1235
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7TN7 : out of range
Severe: avg_fgdepar=-803.5394, expected range: -558.5021 116.5353
Severe: rms_fgdepar=962.2641, expected range: 0.0000 572.4585
BUFR SHIP SYNOP SURFACE PRESSURE (PA) LAON8 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=417.5147, expected range: 0.0000 391.8657
Severe: avg_pge=0.8659, expected range: -1.1653 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WGAH : out of range
Severe: rms_fgdepar=372.0012, expected range: 0.0000 93.2162
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 6203627 : out of range
Severe: rms_fgdepar=303.7236, expected range: 0.0000 90.8687
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101849 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=524.1874, expected range: 0.0000 104.8365
Severe: avg_pge=0.8579, expected range: -0.2012 0.2620
metar
METAR SURFACE PRESSURE (PA) EGYE : out of range
Severe: rms_fgdepar=428.5455, expected range: 0.0000 143.2873
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=-785.4700, expected range: -793.9058 -758.4649
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=785.4703, expected range: 758.4647 793.9063
BUFR LAND SYNOP SNOW (CM) _MF12FF7 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=54.5455, expected range: 40.2625 59.4487
BUFR LAND SYNOP SNOW (CM) _MF12FF7 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=54.5594, expected range: 41.5319 58.7027
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=53.1875, expected range: 37.3493 64.8089
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=53.8905, expected range: 38.0746 65.5722
t2m
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
24 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-16.3286, expected range: -22.7003 -9.8278
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
24 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=16.3397, expected range: 9.9434 22.6711
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
32 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-15.0492, expected range: -21.5140 -9.1732
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
32 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=15.1634, expected range: 9.2219 21.5210
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=-15.6161, expected range: -27.7145 14.7611
Severe: rms_fgdepar=15.6161, expected range: 0.0000 24.1831
METAR 2M TEMPERATURE (K) VTSR : out of range
Severe: rms_fgdepar=12.0985, expected range: 0.0000 5.9990
METAR 2M TEMPERATURE (K) SBST : out of range
Severe: avg_fgdepar=12.6505, expected range: -1.9253 4.3080
Severe: rms_fgdepar=15.0815, expected range: 0.0000 6.6981
rh2m
MANUAL LAND SYNOP RH2M (%) 42255 : out of range
Severe: rms_fgdepar=30.4180, expected range: 0.0000 17.2991
BUFR LAND SYNOP RH2M (%) 54602 : out of range
Severe: rms_fgdepar=33.8819, expected range: 4.7887 21.2078