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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-11-12 00:00

amsua
NOAA-19/AMSUA RADIANCES CHANNEL 6 : out of range
1 times in the last 10 days for at least one item
Severe: avg_biascorr=-0.0334, expected range: -0.0879 -0.0570
Considerable: stdev_fgdepar=0.1675, expected range: 0.1317 0.1578
NOAA-19/AMSUA RADIANCES CHANNEL 10 : out of range
Considerable: stdev_fgdepar=0.2429, expected range: 0.2042 0.2317
AQUA/AMSUA RADIANCES (6 channels affected) : out of range
Slight: obs_number=16416.0000, expected range: 17524.4969 25452.0977
iasi
METOP-A/IASI RADIANCES (11 channels affected) : out of range
Slight: obs_number=26342.0000, expected range: 26498.7244 27207.6049
airs
AQUA/AIRS RADIANCES (100 channels affected) : out of range
Considerable: obs_number=13759.0000, expected range: 16081.0736 22867.7653
ssmis
DMSP-18/SSMIS RADIANCES (17 channels affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=10998.0000, expected range: 12158.2224 16232.6109
resat
AURA/OMI OZONE, TOP PRESSURE LAYER 0-1 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=3050.0000, expected range: 16834.1162 24585.1811
Severe: stdev_fgdepar=8.6633, expected range: 6.9591 8.0769
Considerable: avg_fgdepar=0.4932, expected range: -4.8219 -1.0027
Radiosondes
LAND TEMP TEMPERATURE (K) 30372 PRESSURE LAYER 900-1200 (HPA) : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9453, expected range: -1.0979 0.7500
LAND TEMP TEMPERATURE (K) 24266 PRESSURE LAYER 900-1200 (HPA) : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8172, expected range: -0.9564 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 53513 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=15.6589, expected range: 0.0000 7.7916
Severe: avg_pge=0.8193, expected range: -0.3050 0.3842
LAND TEMP WIND VECTOR DIFF (M/S) 78526 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=16.4435, expected range: 0.0000 5.7030
HIGH RESO LAND TEMP TEMPERATURE (K) 17095 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=11.0696, expected range: 0.0000 1.0319
Severe: avg_pge=0.9223, expected range: -0.1659 0.1933
HIGH RESO LAND TEMP TEMPERATURE (K) 71964 PRESSURE LAYER 900-1200 (HPA : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=6.9879, expected range: 0.0000 4.8602
Severe: avg_pge=0.9002, expected range: -1.1690 0.7500
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_fgdepar=1.6424, expected range: -0.5087 0.5366
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 27713 (2 pressure layers af : out of range
Severe: rms_fgdepar=20.8307, expected range: 0.0000 4.8573
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 91948 (2 pressure layers af : out of range
Severe: rms_fgdepar=17.3593, expected range: 0.0000 7.9870
HIGH RESO LAND TEMP Q (G/KG) 17095 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.3817, expected range: 0.0000 1.3592
HIGH RESO SEA TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
Severe: rms_fgdepar=2.7015, expected range: 0.2222 1.5972
amdar
WIGOS AMDAR TEMPERATURE (K) CDGXR2ZA (2 pressure layers affected) : out of range
Severe: rms_fgdepar=6.4306, expected range: 0.0000 1.1698
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU8550 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.3897, expected range: 0.0000 9.5198
WIGOS AMDAR WIND VECTOR DIFF (M/S) CDGXR2ZA (3 pressure layers affecte : out of range
Severe: rms_fgdepar=23.2982, expected range: 0.0000 6.0389
WIGOS AMDAR WIND VECTOR DIFF (M/S) 4WLKJFBA PRESSURE LAYER 900-1200 (H : out of range
Severe: rms_fgdepar=15.5134, expected range: 0.0000 8.1041
WIGOS AMDAR WIND VECTOR DIFF (M/S) 0QRKJFRA PRESSURE LAYER 900-1200 (H : out of range
Severe: rms_fgdepar=22.5217, expected range: 0.0000 7.8721
WIGOS AMDAR WIND VECTOR DIFF (M/S) X3BKJGRA PRESSURE LAYER 900-1200 (H : out of range
Severe: rms_fgdepar=29.6335, expected range: 0.0000 6.1685
Severe: avg_pge=0.8103, expected range: -0.3133 0.4728
WIGOS AMDAR WIND VECTOR DIFF (M/S) Z4B0JFZA PRESSURE LAYER 900-1200 (H : out of range
Severe: rms_fgdepar=15.5903, expected range: 0.0000 7.5114
airep
AIREP WIND VECTOR DIFF (M/S) VIR157 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=23.8402, expected range: 0.0000 8.4323
Severe: avg_pge=0.8455, expected range: -0.3346 0.4235
synop
BUFR LAND SYNOP SURFACE PRESSURE (PA) 72672 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8441, expected range: -1.5220 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94654 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8911, expected range: -1.6442 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 60018 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8870, expected range: 0.6598 0.7500
MANUAL LAND SYNOP RH2M (%) 64550 : out of range
Severe: rms_fgdepar=20.4345, expected range: 0.0000 9.8566
MANUAL LAND SYNOP RH2M (%) 64570 : out of range
Severe: rms_fgdepar=31.9690, expected range: 0.0000 14.8690
MANUAL LAND SYNOP RH2M (%) 76412 : out of range
Severe: rms_fgdepar=39.4180, expected range: 0.0000 30.5027
Severe: avg_pge=0.9842, expected range: -0.0097 0.0182
MANUAL LAND SYNOP RH2M (%) 61085 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9262, expected range: -1.7852 0.7500
MANUAL LAND SYNOP RH2M (%) 40637 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9954, expected range: -0.2723 0.3154
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 35173 : out of range
Severe: rms_fgdepar=600.2549, expected range: 0.0000 109.9713
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 82784 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8514, expected range: -0.2781 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 67225 : out of range
Severe: avg_pge=0.8272, expected range: -0.5594 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 35085 : out of range
Severe: rms_fgdepar=692.3047, expected range: 0.0000 99.0897
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 35078 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=636.9961, expected range: 0.0000 137.7594
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 35188 : out of range
Severe: rms_fgdepar=554.1957, expected range: 0.0000 181.4134
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=229.4110, expected range: 9.4335 119.6725
BUFR LAND SYNOP RH2M (%) 94700 : out of range
Severe: avg_pge=0.9992, expected range: -1.2173 0.7500
BUFR LAND SYNOP RH2M (%) 07040 : out of range
Severe: rms_fgdepar=25.8745, expected range: 0.0000 12.2052
BUFR LAND SYNOP RH2M (%) 95772 : out of range
Severe: avg_pge=0.9148, expected range: -0.6606 0.7500
BUFR LAND SYNOP RH2M (%) 95727 : out of range
Severe: avg_pge=0.8793, expected range: -0.3185 0.3978
BUFR LAND SYNOP SURFACE PRESSURE (PA) 33633 : out of range
Severe: avg_pge=0.8298, expected range: -1.1518 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 28984 : out of range
Severe: rms_fgdepar=766.2104, expected range: 0.0000 129.2970
Severe: avg_pge=0.9257, expected range: -0.3005 0.4074
BUFR LAND SYNOP SURFACE PRESSURE (PA) 28978 : out of range
Severe: rms_fgdepar=749.0787, expected range: 0.0000 97.3728
Severe: avg_pge=0.9199, expected range: 0.0000 0.0000
BUFR LAND SYNOP SURFACE PRESSURE (PA) 28879 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=667.2783, expected range: 0.0000 110.9414
Severe: avg_pge=0.9208, expected range: -0.1350 0.1545
ship
SHIP SURFACE PRESSURE (PA) C6BR3 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8105, expected range: -1.2956 0.7500
SHIP WIND VECTOR DIFF (M/S) PBGJ : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8350, expected range: 0.1693 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) LF4J : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8157, expected range: 0.3499 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) VCWL : out of range
Severe: rms_fgdepar=336.3841, expected range: 0.0000 187.2774
Severe: avg_pge=0.8592, expected range: -0.4863 0.6253
SHIP SURFACE PRESSURE (PA) 9HA4883 : out of range
Severe: avg_pge=0.8243, expected range: 0.3940 0.7500
SHIP SURFACE PRESSURE (PA) C6FR3 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=1277.3025, expected range: 0.0000 566.3019
Severe: avg_pge=0.9475, expected range: -0.8406 0.7500
SHIP SURFACE PRESSURE (PA) A8GU4 : out of range
Severe: rms_fgdepar=459.1836, expected range: 0.0000 191.8524
Severe: avg_pge=0.8536, expected range: -0.6963 0.7500
SHIP SURFACE PRESSURE (PA) ZCDM6 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=509.6319, expected range: 0.0000 238.2567
Severe: avg_pge=0.8681, expected range: -0.8323 0.7500
SHIP SURFACE PRESSURE (PA) C6VG8 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8371, expected range: 0.2017 0.7500
SHIP WIND VECTOR DIFF (M/S) VRJT8 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=17.6358, expected range: 0.0000 15.4761
Severe: avg_pge=0.9178, expected range: -0.2093 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 2501540 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8999, expected range: -1.4916 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4801667 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=594.1354, expected range: 0.0000 539.4046
Severely_persistent: avg_pge=0.8923, expected range: -0.9283 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2301788 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8734, expected range: -1.5187 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101713 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=576.6812, expected range: 0.0000 137.3571
DRIFTING BUOYS SURFACE PRESSURE (PA) 1301605 : out of range
Severe: rms_fgdepar=365.3147, expected range: 0.0000 75.0955
DRIFTING BUOYS SURFACE PRESSURE (PA) 2501667 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8661, expected range: -0.0022 0.7500
metar
AUTOMATIC METAR SURFACE PRESSURE (PA) ENLA : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8725, expected range: -1.0658 0.7500
METAR SURFACE PRESSURE (PA) LIBH : out of range
Severe: rms_fgdepar=371.5728, expected range: 0.0000 208.9048
AUTOMATIC METAR SURFACE PRESSURE (PA) KUTA : out of range
Severe: rms_fgdepar=339.6424, expected range: 0.0000 185.5168
snow
BUFR LAND SYNOP SNOW (CM) : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-0.0403, expected range: -0.0130 0.0104
Severely_persistent: avg_fgdepar=0.2189, expected range: -0.0840 0.0789
Severely_persistent: rms_fgdepar=2.9871, expected range: -0.7592 0.9807
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89578 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8549, expected range: 0.7311 0.9454
BUFR LAND SYNOP 2M TEMPERATURE (K) 89578 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8526, expected range: 0.7315 0.9459
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 01084 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=13.7736, expected range: 0.0000 6.4939
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 72666 : out of range
Severe: rms_fgdepar=9.9592, expected range: 0.0000 5.0168
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 72777 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=14.7104, expected range: 0.0000 3.8930
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71518 : out of range
Severe: rms_fgdepar=12.0062, expected range: 0.0000 6.2386
MANUAL LAND SYNOP 2M TEMPERATURE (K) 23305 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=9.3998, expected range: 0.0000 5.0157
MANUAL LAND SYNOP 2M TEMPERATURE (K) 23376 : out of range
Severe: rms_fgdepar=9.1464, expected range: 0.0000 3.8749
MANUAL LAND SYNOP 2M TEMPERATURE (K) 63729 : out of range
Severe: rms_fgdepar=13.6298, expected range: 0.0000 3.6580
MANUAL LAND SYNOP 2M TEMPERATURE (K) 61049 : out of range
Severe: rms_fgdepar=9.5217, expected range: 0.0000 5.0238
METAR 2M TEMPERATURE (K) UNBB : out of range
Severe: rms_fgdepar=7.7507, expected range: 0.0000 3.3230
METAR 2M TEMPERATURE (K) UNEE : out of range
Severe: rms_fgdepar=9.4930, expected range: 0.0000 5.3312
METAR 2M TEMPERATURE (K) CYXL : out of range
Severe: rms_fgdepar=8.3760, expected range: 0.0000 4.5620
METAR 2M TEMPERATURE (K) UNNT : out of range
Severe: rms_fgdepar=8.0105, expected range: 0.0000 3.0231
LAND TEMP 2M TEMPERATURE (K) 22008 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.7354, expected range: 0.0000 3.8991
BUFR LAND SYNOP 2M TEMPERATURE (K) 01084 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=13.8427, expected range: 0.0000 6.5066
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=118.0000, expected range: 127.1660 140.0773
rh2m
BUFR LAND SYNOP RH2M (%) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=115.0000, expected range: 148.4929 173.9071