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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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

amsua
NOAA-19 AMSUA ALL SKY RADIANCES CHANNEL 13 : out of range
Considerable: avg_norm_fgdepar=0.5802, expected range: -0.3452 0.2535
iasi
METOP-B IASI RADIANCES CHANNEL 70 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.3059, expected range: 0.2592 0.2836
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=0.2697, expected range: 0.3115 0.3340
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=0.2289, 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=0.2821, expected range: 0.3036 0.3247
METOP-B IASI RADIANCES CHANNEL 131 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.3269, expected range: 0.3647 0.3784
METOP-B IASI RADIANCES CHANNEL 189 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2677, expected range: 0.2914 0.3206
METOP-C IASI RADIANCES CHANNEL 178 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0793, expected range: -0.0423 0.0194
METOP-B IASI RADIANCES (21 channels affected) : out of range
4 times in the last 10 days for at least one item
Severe: avg_biascorr=0.2749, expected range: 0.1657 0.2078
METOP-C IASI RADIANCES (26 channels affected) : out of range
Severe: avg_biascorr=0.1080, expected range: 0.1543 0.1930
METOP-C IASI RADIANCES CHANNEL 228 : out of range
Slight: avg_fgdepar=0.0104, expected range: -0.0141 0.0055
METOP-C IASI RADIANCES CHANNEL 234 : out of range
Slight: avg_fgdepar=0.0122, expected range: -0.0115 0.0070
airs
AQUA AIRS RADIANCES CHANNEL 93 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0877, expected range: -0.0662 -0.0556
AQUA AIRS RADIANCES CHANNEL 99 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0290, expected range: 0.0522 0.0611
AQUA AIRS RADIANCES CHANNEL 104 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0377, expected range: 0.0632 0.0815
AQUA AIRS RADIANCES CHANNEL 116 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0219, expected range: 0.0552 0.0752
Severely_persistent: avg_biascorr=-0.0606, expected range: -0.1690 -0.1103
AQUA AIRS RADIANCES CHANNEL 117 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0088, expected range: 0.0319 0.0579
AQUA AIRS RADIANCES CHANNEL 123 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1014, expected range: -0.0765 -0.0607
AQUA AIRS RADIANCES CHANNEL 128 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0331, expected range: 0.0691 0.1049
Severely_persistent: avg_biascorr=-0.0223, expected range: -0.1378 -0.1007
AQUA AIRS RADIANCES CHANNEL 129 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1110, expected range: -0.0800 -0.0439
Severely_persistent: avg_biascorr=-0.1313, expected range: -0.2192 -0.1793
AQUA AIRS RADIANCES CHANNEL 69 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1608, expected range: -0.3467 -0.2410
AQUA AIRS RADIANCES CHANNEL 1869 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1834, expected range: 0.2331 0.2981
AQUA AIRS RADIANCES CHANNEL 138 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0168, expected range: -0.1774 -0.1068
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=-0.5151, expected range: -0.4580 -0.4543
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=-2.6484, expected range: -3.0484 -2.8491
DMSP-18 SSMIS RADIANCES CHANNEL 7 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=4.8392, expected range: 3.6812 4.2196
gpsro
All GRACE C GPSRO RISING ALL HEIGHTS Global : all data missing
Severe: obs_number=0, expected range: 0.00 800.76
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=-0.0252, expected range: -0.0330 -0.0324
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1600-1601 (HPA) : out of range
9 times in the last 10 days for at least one item
Slight: stdev_fgdepar=3.3525, expected range: 2.8696 3.3217
Radiosondes
HIGH RESO LAND TEMP TEMPERATURE (K) 17281 PRESSURE LAYER 900-1200 (HPA : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8574, expected range: 0.1646 0.7500
LAND TEMP Q (G/KG) 40373 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.6367, expected range: 0.0000 1.2782
LAND TEMP TEMPERATURE (K) 29839 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=6.8891, expected range: 0.0000 3.3475
LAND TEMP TEMPERATURE (K) 30935 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.8917, expected range: -1.5506 0.7500
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=3.3287, expected range: 0.9684 2.2456
LAND TEMP WIND VECTOR DIFF (M/S) 32389 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=45.2096, expected range: -0.2531 8.6422
LAND TEMP WIND VECTOR DIFF (M/S) 32389 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=46.4335, expected range: 0.0000 12.2229
Severe: avg_pge=0.9246, expected range: -0.2155 0.5161
LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=11.1389, expected range: 2.4185 7.2327
All LAND TEMP ALL LAYERS WMO BLOCK 62 : all data missing
Severe: obs_number=0, expected range: 0.00 299.66
HIGH RESO LAND TEMP Q (G/KG) 35121 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.6885, expected range: 0.0000 1.4594
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 349.7525
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=52.0000, expected range: 82.2530 86.0327
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 600-900 (HPA : out of range
Considerable: obs_number=351.0000, expected range: 265.5485 282.4515
amdar
WIGOS AMDAR Q (G/KG) DVPUOFZA PRESSURE LAYER 900-1200 (HPA) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-6.2252, expected range: -7.4704 -0.6259
Severely_persistent: rms_fgdepar=6.2563, expected range: 0.5519 8.4104
AMDAR WIND VECTOR DIFF (M/S) JP9ZVX49 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=23.1254, expected range: -2.6446 9.0331
Severe: rms_fgdepar=23.2019, expected range: 0.0000 9.1690
AMDAR WIND VECTOR DIFF (M/S) JP9ZVX59 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=22.3082, expected range: -0.8499 6.7981
Severe: rms_fgdepar=22.4215, expected range: 0.0000 6.8318
AMDAR WIND VECTOR DIFF (M/S) JP9Z4V69 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=22.2244, expected range: -3.2340 8.0334
Severe: rms_fgdepar=22.4001, expected range: 0.0000 8.1445
AMDAR WIND VECTOR DIFF (M/S) JP9Z4479 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=22.0558, expected range: 0.0726 4.4287
Severe: rms_fgdepar=22.1814, expected range: 0.2379 4.7155
AMDAR WIND VECTOR DIFF (M/S) JP9ZV8X9 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=19.2389, expected range: 0.4411 5.6017
AMDAR WIND VECTOR DIFF (M/S) JP9ZVXY9 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=20.3048, expected range: -2.4790 8.2901
Severe: rms_fgdepar=20.3599, expected range: 0.0000 8.6098
airep
AIREP WIND VECTOR DIFF (M/S) UAL1684 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.2367, expected range: 0.0000 8.0443
AIREP WIND VECTOR DIFF (M/S) BAW36 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.0286, expected range: 0.1006 6.7983
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : missing
Severe: obs_number=0.0000, expected range: 0.0000 1384.8601
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 64700 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.2413, expected range: 3.5845 8.2811
LAND PILOT WIND VECTOR DIFF (M/S) 42701 (2 pressure layers affected) : out of range
Severe: avg_pge=0.8271, expected range: -1.5012 0.7500
LAND PILOT WIND VECTOR DIFF (M/S) 96749 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=15.8337, expected range: 0.0000 5.6652
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 17880 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=500.5266, expected range: -8.2996 355.2889
Severely_persistent: rms_fgdepar=704.0602, expected range: 178.8475 743.3053
Severely_persistent: avg_pge=0.8721, expected range: -0.4216 0.7500
MANUAL LAND SYNOP RH2M (%) 62120 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=52.6451, expected range: -21.9386 61.3728
Severely_persistent: rms_fgdepar=52.6451, expected range: 0.0000 61.3728
Severely_persistent: avg_pge=1.0000, expected range: -0.7852 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41998 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8138, expected range: -0.3559 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 68443 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=47.3381, expected range: 0.0000 22.0333
Severe: avg_pge=0.8801, expected range: 0.0016 0.0040
AUTOMATIC LAND SYNOP RH2M (%) 68098 : out of range
Severe: avg_fgdepar=54.6096, expected range: -45.0660 58.9728
Severe: rms_fgdepar=54.6096, expected range: -40.4935 56.0367
Severe: avg_pge=0.9610, expected range: -0.0133 0.0226
MANUAL LAND SYNOP Z (M) 38462 : out of range
Severe: rms_fgdepar=224.1576, expected range: 11.6641 183.6635
Severe: avg_pge=0.8892, expected range: -0.4661 0.5609
MANUAL LAND SYNOP RH2M (%) 76402 : out of range
Severe: avg_pge=0.8208, expected range: -0.1670 0.2108
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42348 : out of range
Severe: rms_fgdepar=624.8099, expected range: 0.0000 248.3700
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 78458 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=519.1435, expected range: 1.2417 147.1945
BUFR LAND SYNOP RH2M (%) 64040 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-53.7453, expected range: -59.7710 -36.0380
Severe: rms_fgdepar=53.7453, expected range: 36.0380 59.7710
BUFR LAND SYNOP RH2M (%) 76402 : out of range
Severe: avg_pge=0.9225, expected range: -0.0223 0.0404
BUFR LAND SYNOP RH2M (%) 41112 : out of range
Severe: rms_fgdepar=48.9800, expected range: 0.0000 13.3230
Severe: avg_pge=0.9995, expected range: 0.0011 0.0046
BUFR LAND SYNOP RH2M (%) 34505 : out of range
Severe: rms_fgdepar=31.7010, expected range: 0.0000 12.6943
BUFR LAND SYNOP RH2M (%) 94255 : out of range
Severe: rms_fgdepar=30.7802, expected range: 0.0000 14.1633
BUFR LAND SYNOP RH2M (%) 95487 : out of range
Severe: rms_fgdepar=30.2585, expected range: 0.0000 13.9073
BUFR LAND SYNOP RH2M (%) 94498 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9878, expected range: -1.3722 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48062 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=635.0043, expected range: -82.6335 100.1227
Severe: rms_fgdepar=635.2243, expected range: 0.0000 165.9524
Severe: avg_pge=0.9020, expected range: -1.1961 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 34254 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=469.6729, expected range: 0.0000 223.4591
Severe: avg_pge=0.8571, expected range: -0.7007 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 32594 : out of range
Severe: rms_fgdepar=507.3891, expected range: 0.0000 74.4981
BUFR LAND SYNOP SURFACE PRESSURE (PA) 36736 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8305, expected range: -0.5707 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48037 : out of range
Severe: rms_fgdepar=535.0800, expected range: 0.0000 250.7176
BUFR LAND SYNOP SURFACE PRESSURE (PA) 22887 : out of range
Severe: rms_fgdepar=491.6854, expected range: 0.0000 148.8057
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24679 : out of range
Severe: rms_fgdepar=353.4239, expected range: 32.2179 72.5207
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OYGR2 : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-656.7877, expected range: -794.2985 -437.9987
Severely_persistent: rms_fgdepar=656.7877, expected range: 438.8691 793.6994
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7A5205 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=502.1999, expected range: 5.6067 776.3378
Severely_persistent: rms_fgdepar=502.1999, expected range: 5.7427 776.3486
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VROO6 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=816.4244, expected range: 516.8885 1219.8156
Severely_persistent: rms_fgdepar=829.5802, expected range: 520.7938 1218.2035
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WACW : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=763.5887, expected range: 488.6887 937.1107
Severely_persistent: rms_fgdepar=763.6211, expected range: 488.9369 937.0183
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) S6CH4 : out of range
Severe: rms_fgdepar=15.9440, expected range: 0.0000 10.8792
Severe: avg_pge=0.8710, expected range: 0.1566 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) S6CH4 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=646.4620, expected range: -307.5239 167.1308
Severe: rms_fgdepar=646.4620, expected range: 0.0000 455.1457
Severe: avg_pge=0.8488, expected range: -0.9751 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VROO5 : out of range
Severe: rms_fgdepar=363.6135, expected range: 0.0000 195.5875
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRRD7 : out of range
Severe: avg_fgdepar=556.5367, expected range: 167.6060 1192.3713
Severe: rms_fgdepar=556.5758, expected range: 166.8264 1201.5454
BUFR SHIP SYNOP SURFACE PRESSURE (PA) LAON8 : out of range
Severe: rms_fgdepar=380.7874, expected range: 0.0000 318.2415
Severe: avg_pge=0.8400, expected range: -1.0906 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 4802594 : out of range
Severe: rms_fgdepar=399.5563, expected range: 0.0000 216.4636
Severe: avg_pge=0.8529, expected range: -0.6308 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101849 : out of range
Severe: avg_fgdepar=-571.2211, expected range: -143.4913 102.6111
Severe: rms_fgdepar=619.7069, expected range: 0.0000 106.3585
Severe: avg_pge=0.8908, expected range: -0.2062 0.2642
metar
AUTOMATIC METAR SURFACE PRESSURE (PA) KPWM : out of range
Severe: rms_fgdepar=359.5009, expected range: 0.0000 166.1261
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=-780.2467, expected range: -789.2630 -761.2623
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=780.4426, expected range: 761.2619 789.2636
BUFR LAND SYNOP SNOW (CM) _MF12FF7 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=53.1818, expected range: 40.4389 58.6634
BUFR LAND SYNOP SNOW (CM) _MF12FF7 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=53.3027, expected range: 41.7759 57.8767
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=64.9474, expected range: 36.8215 65.1613
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=65.3211, expected range: 37.5465 65.8969
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 51087 : out of range
Severe: avg_fgdepar=12.3371, expected range: -12.3378 13.5637
Severe: rms_fgdepar=12.3371, expected range: 0.0000 11.6395
MANUAL LAND SYNOP 2M TEMPERATURE (K) 67761 : out of range
Severe: avg_fgdepar=-18.4186, expected range: -2.4964 4.8301
Severe: rms_fgdepar=18.4186, expected range: 0.0000 4.2440
METAR 2M TEMPERATURE (K) EDGS : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.8556, expected range: 0.0000 5.0663
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI1B0A1 : out of range
Severe: rms_fgdepar=10.9810, expected range: 0.9176 5.4330
BUFR LAND SYNOP 2M TEMPERATURE (K) 89504 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=12.1179, expected range: 3.8361 15.4659
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI1AFE9 : out of range
Severe: avg_fgdepar=-13.0023, expected range: -8.3669 3.6838
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI1AFE9 : out of range
Severe: rms_fgdepar=13.0067, expected range: 0.0000 8.1695
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) : out of range
Considerable: obs_number=220.0000, expected range: 711.5215 860.0170
Considerable: obs_number=160.0000, expected range: 550.7563 643.5104
rh2m
MANUAL LAND SYNOP RH2M (%) 60770 : out of range
Severe: rms_fgdepar=38.8562, expected range: 0.0000 21.8252
BUFR LAND SYNOP RH2M (%) _MI120A5 : out of range
Severe: rms_fgdepar=35.7881, expected range: 0.0000 18.9029