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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2020-01-17 00:00

iasi
METOP-A IASI RADIANCES CHANNEL 303 : out of range
Severe: obs_number=10686.0000, expected range: 11866.5008 13152.9659
cris
NOAA20 CRIS RADIANCES (34 channels affected) : out of range
Severe: obs_number=2520.0000, expected range: 2207.0987 2334.5013
airs
AQUA AIRS RADIANCES CHANNEL 1794 : missing
4 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 3529.9597 15851.3811
mhs
METOP-A MHS ALLSKY RADIANCES CHANNEL 3 : out of range
Slight: stdev_norm_fgdepar=0.6072, expected range: 0.6178 0.6854
METOP-B MHS ALLSKY RADIANCES CHANNEL 3 : out of range
Slight: stdev_norm_fgdepar=0.6038, expected range: 0.6123 0.6697
METOP-B MHS ALLSKY RADIANCES CHANNEL 4 : out of range
Slight: stdev_norm_fgdepar=0.5620, expected range: 0.5707 0.6483
gmi
GPM GMI ALSKY RADIANCES CHANNEL 12 : out of range
Slight: avg_norm_fgdepar=-0.0593, expected range: -0.0500 -0.0019
atms
NOAA20 ATMS RADIANCES (7 channels affected) : out of range
Severe: obs_number=3783.0000, expected range: 3271.1986 3529.7348
ssmis
DMSP-17 SSMIS RADIANCES CHANNEL 2 : out of range
Severe: stdev_norm_fgdepar=0.0166, expected range: 0.0132 0.0154
DMSP-17 SSMIS RADIANCES CHANNEL 9 : out of range
Slight: stdev_norm_fgdepar=0.5182, expected range: 0.5325 0.5878
Atmospheric Motion Vector
GOES-17 AMV VIS1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 600-900 (HPA) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=2245.0000, expected range: 783.3076 1750.6924
METEOSAT-8 AMV VIS2 WIND VECTOR DIFF (M/S) PRESSURE LAYER 600-900 (HPA : out of range
1 times in the last 10 days for at least one item
Slight: stdev_press=50.0563, expected range: 50.7973 53.9357
METOP-B AMV IR WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : out of range
Slight: stdev_press=85.4439, expected range: 67.0576 83.3230
NPP VIIRS AMV IR WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Slight: avg_press=258.9042, expected range: 268.7960 281.0332
Slight: stdev_press=29.2092, expected range: 4.1091 26.9157
Radiosondes
LAND TEMP TEMPERATURE (K) 30758 PRESSURE LAYER 900-1200 (HPA) : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8707, expected range: 0.3346 0.7500
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 67 : all data missing
Severely_persistent: obs_number=0, expected range: 84.48 144.32
All HIGH RESO SEA TEMP ALL LAYERS Tropics : all data missing
Severely_persistent: obs_number=0, expected range: 84.31 123.69
All HIGH RESO SEA TEMP ALL LAYERS Alantic Tropical are : all data missing
Severely_persistent: obs_number=0, expected range: 84.31 123.69
LAND TEMP TEMPERATURE (K) 27594 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=12.7269, expected range: 0.0000 3.4769
Severe: avg_pge=0.9260, expected range: -0.2276 0.4266
LAND TEMP TEMPERATURE (K) 23955 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_pge=0.8798, expected range: -1.3758 0.7500
LAND TEMP Q (G/KG) 41024 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.5144, expected range: 0.0000 1.1639
LAND TEMP Q (G/KG) 83208 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.5865, expected range: 0.0000 1.8507
HIGH RESO LAND TEMP TEMPERATURE (K) 58362 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=6.0926, expected range: 0.1356 2.7032
HIGH RESO LAND TEMP TEMPERATURE (K) 72261 PRESSURE LAYER 900-1200 (HPA : out of range
Severe: rms_fgdepar=6.0690, expected range: 0.0000 2.2220
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=3.2294, expected range: 1.3862 1.9797
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
Severe: obs_number=372.0000, expected range: 457.0358 482.1071
HIGH RESO LAND TEMP TEMPERATURE (K) (3 pressure layers affected) : out of range
Severe: obs_number=89.0000, expected range: 178.2745 183.1540
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Severe: obs_number=65.0000, expected range: 132.2204 152.9224
Severe: obs_number=65.0000, expected range: 132.2204 152.9224
Severe: obs_number=507.0000, expected range: 377.9975 441.4310
Severe: obs_number=0.0000, expected range: 0.0000 379.9118
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 94374 (2 pressure layers af : out of range
Severe: rms_fgdepar=16.4933, expected range: 0.0000 5.6675
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=305.0000, expected range: 365.5744 429.5685
HIGH RESO LAND TEMP Q (G/KG) 94374 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=4.1207, expected range: 0.0000 1.8060
HIGH RESO LAND TEMP Q (G/KG) 76458 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=3.0718, expected range: 0.6919 1.9228
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 0-300 (HPA) : missing
2 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 54.3228 65.2772
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: obs_number=1322.0000, expected range: 1130.2080 1252.9349
amdar
AMDAR WIND VECTOR DIFF (M/S) ANZ284 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_pge=0.8408, expected range: -1.5901 0.7500
AMDAR WIND VECTOR DIFF (M/S) ANZ125 PRESSURE LAYER 300-600 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8725, expected range: -1.2664 0.7500
AMDAR WIND VECTOR DIFF (M/S) UAL916 PRESSURE LAYER 300-600 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8815, expected range: -1.7244 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) OBNWPSBA PRESSURE LAYER 300-600 (HP : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8431, expected range: -1.6932 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) GN0RPDJA PRESSURE LAYER 300-600 (HP : out of range
Severe: rms_fgdepar=22.9214, expected range: 0.0000 6.4409
Severe: avg_pge=0.8851, expected range: -0.2217 0.2951
WIGOS AMDAR WIND VECTOR DIFF (M/S) NWWZ20ZA PRESSURE LAYER 300-600 (HP : out of range
Severe: avg_pge=0.8099, expected range: -1.5120 0.7500
WIGOS AMDAR TEMPERATURE (K) EU6617 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=7.4479, expected range: 0.0289 1.3472
airep
AIREP WIND VECTOR DIFF (M/S) LOT45 PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=15.5256, expected range: 0.1545 5.2490
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 10440 PRESSURE LAYER 600-900 : out of range
Severe: rms_fgdepar=17.6215, expected range: 0.0000 9.7213
Severe: avg_pge=0.8575, expected range: -0.5477 0.7500
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 10132 PRESSURE LAYER 600-900 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=16.2207, expected range: 0.3297 7.0610
Severe: avg_pge=0.8928, expected range: -0.1483 0.5498
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 97690 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.9113, expected range: -1.2336 0.7500
synop
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71021 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8239, expected range: -0.9337 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71648 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9021, expected range: -1.4517 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24588 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8324, expected range: 0.5173 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 95916 : out of range
Severe: rms_fgdepar=30.7735, expected range: 5.0738 12.0294
MANUAL LAND SYNOP RH2M (%) 35001 : out of range
Severe: rms_fgdepar=50.1862, expected range: 0.0000 11.4861
MANUAL LAND SYNOP RH2M (%) 63474 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=46.4618, expected range: -24.4144 34.6508
Severe: avg_pge=0.9285, expected range: -0.1569 0.1909
MANUAL LAND SYNOP RH2M (%) 67765 : out of range
Severe: rms_fgdepar=34.4159, expected range: 0.0000 13.9741
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43310 : out of range
Severe: rms_fgdepar=472.7768, expected range: 0.0000 233.1707
Severe: avg_pge=0.8721, expected range: -1.1375 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42131 : out of range
Severe: rms_fgdepar=529.5834, expected range: 0.0000 249.1274
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 87412 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=1153.7894, expected range: 0.0000 482.6033
Severe: avg_pge=0.9404, expected range: -1.3613 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42662 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=370.2887, expected range: 0.0000 136.5420
Severe: avg_pge=0.8332, expected range: -0.8084 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 17046 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=330.7106, expected range: 0.0000 163.8650
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 67157 : out of range
Severe: rms_fgdepar=515.6061, expected range: 16.1561 115.2187
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 41268 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8762, expected range: 0.5164 0.7500
BUFR LAND SYNOP RH2M (%) 94363 : out of range
Severe: rms_fgdepar=32.4220, expected range: 0.0000 16.9524
BUFR LAND SYNOP RH2M (%) 94415 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9998, expected range: -1.9162 0.7500
BUFR LAND SYNOP RH2M (%) 15118 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8069, expected range: -1.4084 0.7500
BUFR LAND SYNOP RH2M (%) 95529 : out of range
Severe: rms_fgdepar=30.5586, expected range: 0.0000 7.5636
BUFR LAND SYNOP SURFACE PRESSURE (PA) 70333 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8940, expected range: -0.7521 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 23174 : out of range
Severe: rms_fgdepar=500.3412, expected range: 0.0000 176.0311
BUFR LAND SYNOP SURFACE PRESSURE (PA) 28275 : out of range
Severe: rms_fgdepar=571.8275, expected range: 0.0000 106.6060
BUFR LAND SYNOP SURFACE PRESSURE (PA) 61995 : out of range
Severe: rms_fgdepar=669.5177, expected range: 13.0109 121.2575
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41136 : out of range
Severe: rms_fgdepar=498.1674, expected range: 0.0000 123.0599
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71246 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=501.6360, expected range: 0.0000 132.8081
Severe: avg_pge=0.9014, expected range: -1.1459 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 23589 : out of range
Severe: rms_fgdepar=637.0647, expected range: 0.0000 116.0842
BUFR LAND SYNOP Z (M) 56247 : out of range
Severe: avg_pge=0.9270, expected range: -0.9210 0.7500
ship
SHIP SURFACE PRESSURE (PA) A8OR8 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8891, expected range: -0.3123 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) S6AN5 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8480, expected range: 0.5033 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) LF4X : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8013, expected range: -0.4189 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 2GNG3 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8539, expected range: 0.5833 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V7987 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9216, expected range: 0.5268 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) LAIG7 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8680, expected range: 0.1130 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) A8ZA8 : out of range
Severe: rms_fgdepar=859.5613, expected range: 0.0000 275.7308
Severe: avg_pge=0.8949, expected range: -0.9942 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HOM8 : out of range
Severe: rms_fgdepar=312.7027, expected range: 0.0000 175.9637
BUFR SHIP SYNOP SURFACE PRESSURE (PA) CGDT : out of range
Severe: rms_fgdepar=747.5572, expected range: 0.0000 610.1953
Severe: avg_pge=0.9321, expected range: -1.0364 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VRKK2 : out of range
Severe: rms_fgdepar=22.5923, expected range: 0.6716 6.2341
Severe: avg_pge=0.9003, expected range: -0.0082 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) DSQF9 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9177, expected range: 0.2916 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) ONIS : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9192, expected range: -0.7247 0.7500
metar
METAR SURFACE PRESSURE (PA) NVVA : out of range
Severe: rms_fgdepar=450.0042, expected range: 0.0000 177.9972
METAR SURFACE PRESSURE (PA) OESH : out of range
Severe: rms_fgdepar=411.0996, expected range: 0.0000 169.9495
AUTOMATIC METAR SURFACE PRESSURE (PA) YBMK : out of range
Severe: rms_fgdepar=303.5469, expected range: 0.0000 151.4787
AUTOMATIC METAR SURFACE PRESSURE (PA) YBPN : out of range
Severe: rms_fgdepar=352.0676, expected range: 16.0432 140.5580
snow
MANUAL LAND SYNOP SNOW (CM) 36208 : out of range
Severe: rms_fgdepar=17.8011, expected range: 5.5544 10.2169
t2m
MANUAL LAND SYNOP 2M TEMPERATURE (K) : out of range
8 times in the last 10 days for at least one item
Severely_persistent: obs_number=144.0000, expected range: 172.8683 183.9317
LAND TEMP 2M TEMPERATURE (K) 30372 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8728, expected range: 0.4996 1.0865
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 11310 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8027, expected range: 0.1212 1.1074
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 06785 : out of range
2 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8134, expected range: 0.1993 1.0306
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71717 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=12.3004, expected range: 0.0000 5.3692
Severe: avg_est_pge=0.8073, expected range: -0.1982 0.5443
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 41268 : out of range
Severe: rms_fgdepar=10.5151, expected range: 1.1599 3.7140
MANUAL LAND SYNOP 2M TEMPERATURE (K) 44218 : out of range
Severe: rms_fgdepar=11.3661, expected range: 4.5620 9.6992
Severe: avg_est_pge=0.8030, expected range: 0.5742 0.7938
METAR 2M TEMPERATURE (K) LTCO : out of range
Severe: avg_est_pge=0.8357, expected range: -0.0634 0.9755
METAR 2M TEMPERATURE (K) UNTT : out of range
Severe: rms_fgdepar=10.4358, expected range: 0.0000 3.4954
LAND TEMP 2M TEMPERATURE (K) 24908 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8546, expected range: -0.5472 1.3331
BUFR LAND SYNOP 2M TEMPERATURE (K) 11310 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8019, expected range: 0.1120 1.0997
BUFR LAND SYNOP 2M TEMPERATURE (K) 36026 : out of range
Severe: rms_fgdepar=10.2240, expected range: 0.0000 4.7879
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=119.0000, expected range: 166.5876 171.8568
Severe: obs_number=75.0000, expected range: 95.5797 101.7536
Severe: obs_number=266.0000, expected range: 351.8783 392.5217
rh2m
MANUAL LAND SYNOP RH2M (%) : out of range
8 times in the last 10 days for at least one item
Severely_persistent: obs_number=143.0000, expected range: 164.3856 188.5477
AUTOMATIC LAND SYNOP RH2M (%) 68512 : out of range
Severe: rms_fgdepar=33.8215, expected range: 0.0000 16.5035
MANUAL LAND SYNOP RH2M (%) 94500 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=34.0971, expected range: 0.0000 18.8126
MANUAL LAND SYNOP RH2M (%) 72532 : out of range
Severe: rms_fgdepar=39.4484, expected range: 0.0000 19.0135
METAR RH2M (%) KSPI : out of range
Severe: rms_fgdepar=34.4657, expected range: 0.0000 14.9659
BUFR LAND SYNOP RH2M (%) : out of range
Severe: obs_number=80.0000, expected range: 90.2407 100.0926
Severe: obs_number=264.0000, expected range: 328.5129 409.3537