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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-09-28 00:00

airs
AQUA AIRS RADIANCES CHANNEL 27 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0268, expected range: 0.0390 0.0531
AQUA AIRS RADIANCES CHANNEL 40 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0488, expected range: 0.0753 0.1034
AQUA AIRS RADIANCES CHANNEL 92 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2417, expected range: -0.2047 -0.1949
AQUA AIRS RADIANCES CHANNEL 98 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1091, expected range: 0.1320 0.1539
AQUA AIRS RADIANCES CHANNEL 104 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0195, expected range: 0.0632 0.0635
Severely_persistent: avg_biascorr=-0.0346, expected range: -0.1024 -0.0869
AQUA AIRS RADIANCES CHANNEL 105 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1085, expected range: 0.1413 0.1484
AQUA AIRS RADIANCES CHANNEL 110 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0050, expected range: 0.0380 0.0418
Severely_persistent: avg_biascorr=-0.0309, expected range: -0.0820 -0.0727
AQUA AIRS RADIANCES CHANNEL 111 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0718, expected range: -0.0406 -0.0396
AQUA AIRS RADIANCES CHANNEL 20 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1377, expected range: 0.0859 0.1119
AQUA AIRS RADIANCES CHANNEL 69 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1356, expected range: -0.2518 -0.2410
Severely_persistent: avg_biascorr=-0.4121, expected range: -0.9561 -0.6894
AQUA AIRS RADIANCES CHANNEL 116 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0508, expected range: -0.1213 -0.1103
Severely_persistent: avg_biascorr=-0.1902, expected range: -0.1452 -0.0934
AQUA AIRS RADIANCES CHANNEL 138 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0426, expected range: -0.2178 -0.1068
AQUA AIRS RADIANCES CHANNEL 99 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1105, expected range: -0.0780 -0.0693
AQUA AIRS RADIANCES CHANNEL 123 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2144, expected range: -0.1705 -0.1219
AQUA AIRS RADIANCES CHANNEL 128 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1660, expected range: -0.1094 -0.0836
AQUA AIRS RADIANCES CHANNEL 129 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2945, expected range: -0.2300 -0.2095
atms
NPP ATMS RADIANCES CHANNEL 10 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2240, expected range: -0.1940 -0.1647
NPP ATMS RADIANCES CHANNEL 11 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1822, expected range: -0.1497 -0.1143
NPP ATMS RADIANCES CHANNEL 12 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2645, expected range: -0.2092 -0.1594
NPP ATMS RADIANCES CHANNEL 9 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.5540, expected range: -0.4580 -0.4270
NOAA20 ATMS RADIANCES CHANNEL 12 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.3694, expected range: -0.3168 -0.2817
ssmis
DMSP-17 SSMIS RADIANCES CHANNEL 17 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-2.4351, expected range: -2.8710 -2.6872
resat
NOAA-19 SBUV OZONE, TOP (19 pressure layers affected) : out of range
Slight: obs_number=494.0000, expected range: 508.9341 558.7130
Radiosondes
LAND TEMP TEMPERATURE (K) 29862 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=7.7313, expected range: 0.0000 2.7745
LAND TEMP WIND VECTOR DIFF (M/S) 34247 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_pge=0.8338, expected range: -0.8741 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 37259 PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=17.7316, expected range: 0.0000 10.0596
Severe: avg_pge=0.8122, expected range: -0.6106 0.7500
All LAND TEMP ALL LAYERS WMO BLOCK 17 : all data missing
Severe: obs_number=0, expected range: 0.00 338.91
HIGH RESO LAND TEMP TEMPERATURE (K) 57993 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=6.3945, expected range: 0.5500 2.1760
HIGH RESO LAND TEMP TEMPERATURE (K) 76644 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=8.0832, expected range: 0.0000 3.2203
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 51076 PRESSURE LAYER 300-60 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=20.9640, expected range: -0.0506 3.7906
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 51076 (3 pressure layers af : out of range
Severe: rms_fgdepar=21.0448, expected range: 0.2337 3.8872
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 51076 (2 pressure layers af : out of range
Severe: avg_pge=0.8114, expected range: -0.0694 0.0794
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 26708 PRESSURE LAYER 900-12 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=22.6597, expected range: 0.0849 3.8323
HIGH RESO LAND TEMP Q (G/KG) 50774 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=4.3870, expected range: 0.0000 1.4274
HIGH RESO LAND TEMP Q (G/KG) (2 pressure layers affected) : out of range
Considerable: rms_fgdepar=1.0331, expected range: 0.1979 0.7424
amdar
AMDAR WIND VECTOR DIFF (M/S) UAL115 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=23.1204, expected range: -0.9859 7.4257
Severe: rms_fgdepar=23.4017, expected range: 0.0000 10.9044
Severe: avg_pge=0.8397, expected range: -0.3357 0.4417
WIGOS AMDAR TEMPERATURE (K) LEBUNVZA PRESSURE LAYER 0-300 (HPA) : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8272, expected range: -1.4473 0.7500
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 68392 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=411.1022, expected range: 0.0000 207.8681
Severely_persistent: avg_pge=0.8708, expected range: -0.5598 0.7500
MANUAL LAND SYNOP RH2M (%) 67441 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=51.3392, expected range: -57.5074 90.0026
Severe: rms_fgdepar=51.3392, expected range: 0.0000 84.1288
Severe: avg_pge=0.9992, expected range: -0.0305 0.0466
MANUAL LAND SYNOP RH2M (%) 76402 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8918, expected range: -1.2332 0.7500
MANUAL LAND SYNOP RH2M (%) 87016 : out of range
Severe: rms_fgdepar=38.0961, expected range: 0.0000 12.0081
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 62120 : out of range
Severe: rms_fgdepar=424.4942, expected range: 0.0000 263.9568
Severe: avg_pge=0.8531, expected range: -0.9277 0.7500
BUFR LAND SYNOP RH2M (%) 36883 : out of range
Severe: rms_fgdepar=32.0287, expected range: 0.0000 15.6730
BUFR LAND SYNOP RH2M (%) 30965 : out of range
Severe: rms_fgdepar=38.7188, expected range: 0.0000 16.8306
BUFR LAND SYNOP RH2M (%) 94498 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=52.9069, expected range: -23.9322 78.9686
Severe: rms_fgdepar=52.9069, expected range: 0.0000 78.9686
Severe: avg_pge=0.9987, expected range: -1.8287 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 34514 : out of range
Severe: rms_fgdepar=344.5597, expected range: 0.0000 196.0365
Severe: avg_pge=0.8472, expected range: -0.8515 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48356 : out of range
Severe: rms_fgdepar=440.5088, expected range: 0.0000 141.7725
BUFR LAND SYNOP RH2M (%) : out of range
Considerable: obs_number=1462.0000, expected range: 1269.8529 1309.2582
Considerable: obs_number=1542.0000, expected range: 1343.6531 1389.2358
Considerable: obs_number=1303.0000, expected range: 1091.7332 1138.4890
BUFR LAND SYNOP Z (M) : out of range
Slight: rms_fgdepar=89.5292, expected range: 46.8237 78.9105
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HA4048 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=1075.4382, expected range: -1131.7581 2571.2580
Severely_persistent: rms_fgdepar=1075.4382, expected range: 0.0000 2481.4691
Severely_persistent: avg_pge=0.9044, expected range: -1.1643 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) KIAB : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=671.8809, expected range: 330.8452 947.4731
Severely_persistent: rms_fgdepar=671.8809, expected range: 330.7985 947.5809
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VABC : out of range
24 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8142, expected range: -0.5770 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) YBBQ2 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=967.0788, expected range: 283.8122 1276.2840
Severe: rms_fgdepar=967.0788, expected range: 244.5334 1331.6524
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VROO5 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=502.5171, expected range: 0.0000 880.3656
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7DJ7 : out of range
Severe: avg_fgdepar=945.0659, expected range: -129.1150 397.2317
Severe: rms_fgdepar=945.0659, expected range: 0.0000 327.0726
Severe: avg_pge=0.8920, expected range: -0.7397 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6PT7 : out of range
Severe: avg_fgdepar=-620.9243, expected range: -671.6581 497.8414
Severe: rms_fgdepar=620.9243, expected range: 0.0000 768.5570
Severe: avg_pge=0.8558, expected range: -0.7252 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6WN8 : out of range
Severe: avg_fgdepar=550.1526, expected range: -1360.1280 1409.1593
Severe: rms_fgdepar=550.1526, expected range: -803.0552 1172.4485
Severe: avg_pge=0.8345, expected range: -1.2689 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WUKJN8R : out of range
Severe: avg_fgdepar=1119.0546, expected range: -458.6577 402.3509
Severe: rms_fgdepar=1119.0546, expected range: -365.3328 507.0553
Severe: avg_pge=0.9093, expected range: -1.0315 0.7500
buoy
MOORED BUOYS SURFACE PRESSURE (PA) 4200023 : out of range
Severe: rms_fgdepar=471.8225, expected range: 3.0552 77.0470
DRIFTING BUOYS SURFACE PRESSURE (PA) 4802582 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=349.4119, expected range: -199.3758 287.4979
Severe: avg_pge=0.8120, expected range: -0.2095 0.2378
DRIFTING BUOYS SURFACE PRESSURE (PA) 5201714 : out of range
Severe: rms_fgdepar=373.7086, expected range: 0.0000 65.8063
DRIFTING BUOYS SURFACE PRESSURE (PA) 4802584 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=454.5630, expected range: 0.0000 83.1559
Severe: avg_pge=0.8339, expected range: -0.1695 0.1853
DRIFTING BUOYS SURFACE PRESSURE (PA) 4802594 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=606.6960, expected range: -419.7323 368.0276
Severe: rms_fgdepar=606.7212, expected range: 0.0000 287.1582
Severe: avg_pge=0.9103, expected range: -1.0709 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5201727 : out of range
Severe: rms_fgdepar=340.0059, expected range: 0.0000 92.1016
MOORED BUOYS WIND VECTOR DIFF (M/S) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=310.0000, expected range: 262.7701 273.8181
metar
METAR SURFACE PRESSURE (PA) HTMH : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=883.1593, expected range: 689.9667 1017.7480
Severely_persistent: rms_fgdepar=883.2129, expected range: 690.7422 1017.4458
METAR SURFACE PRESSURE (PA) FVFA : out of range
Severe: rms_fgdepar=471.7712, expected range: 0.0000 147.7692
METAR SURFACE PRESSURE (PA) SECO : out of range
Severe: avg_fgdepar=-797.5846, expected range: -274.4082 286.8782
Severe: rms_fgdepar=797.5846, expected range: 0.0000 187.1842
Severe: avg_pge=0.8521, expected range: -0.1059 0.1236
METAR SURFACE PRESSURE (PA) VLPS : out of range
Severe: rms_fgdepar=483.8171, expected range: 0.0000 253.7321
gbrad
All GROUND-BASED RADAR Global : all data missing
Severe: obs_number=0, expected range: 44.10 3216.71
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=-786.2756, expected range: -796.9368 -760.0714
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=786.2762, expected range: 760.5767 796.6277
BUFR LAND SYNOP SNOW (CM) _MF1378B : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=18.6440, expected range: 2.6242 11.3489
t2m
METAR 2M TEMPERATURE (K) KTLH : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-14.3778, expected range: -25.5121 2.1780
Severely_persistent: rms_fgdepar=14.3778, expected range: 2.8796 21.8011
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71652 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-14.7474, expected range: -12.6337 10.0257
Severe: rms_fgdepar=15.2079, expected range: 0.0000 10.3745
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71653 : out of range
Severe: avg_fgdepar=-14.6901, expected range: -12.0062 11.4019
Severe: rms_fgdepar=15.2995, expected range: 0.0000 11.0730
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 55228 : out of range
Severe: avg_fgdepar=12.0034, expected range: -5.6002 11.1203
Severe: rms_fgdepar=12.0034, expected range: 0.0000 10.0869
BUFR LAND SYNOP 2M TEMPERATURE (K) 71652 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-14.1588, expected range: -12.0860 9.4004
Severe: rms_fgdepar=14.6431, expected range: 0.0000 10.2380
BUFR LAND SYNOP 2M TEMPERATURE (K) 71653 : out of range
Severe: avg_fgdepar=-13.5495, expected range: -11.0920 10.5943
Severe: rms_fgdepar=14.1835, expected range: 0.5315 9.7957
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
1 times in the last 10 days for at least one item
Slight: obs_number=126862.0000, expected range: 142794.5420 150855.2080
rh2m
BUFR LAND SYNOP RH2M (%) 04121 : out of range
Severe: rms_fgdepar=30.1137, expected range: 0.4511 16.2007