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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-09-17 00:00

iasi
METOP-A/IASI RADIANCES CHANNEL 407 : out of range
Slight: obs_number=997.0000, expected range: 1403.3462 4838.5386
mhs
ALLSKY METOP-A/MHS RADIANCES CHANNEL 3 : out of range
Slight: obs_number=45054.0000, expected range: 46920.4407 50022.7698
ALLSKY METOP-A/MHS RADIANCES CHANNEL 4 : out of range
Slight: obs_number=43164.0000, expected range: 45113.9700 47785.3985
gpsro
All TERRASAR-X SETTING ALL HEIGHTS Global : all data missing
Severe: obs_number=0, expected range: 0.00 1404.81
All TANDEM-X RISING ALL HEIGHTS Global : all data missing
Severe: obs_number=0, expected range: 0.00 1161.47
Atmospheric Motion Vector
METEOSAT-11/AMV IR3 WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HP : out of range
Considerable: stdev_fgdepar=1.8593, expected range: 0.5668 1.5392
Radiosondes
LAND TEMP Q (G/KG) 40437 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.8894, expected range: 0.0000 1.1557
LAND TEMP TEMPERATURE (K) 42667 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=6.9253, expected range: 0.0000 2.3596
LAND TEMP WIND VECTOR DIFF (M/S) 24122 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=21.7204, expected range: 0.0000 7.5199
HIGH RESO LAND TEMP TEMPERATURE (K) (4 pressure layers affected) : out of range
Severe: avg_biascorr=-0.0541, expected range: 0.0000 0.0000
HIGH RESO LAND TEMP TEMPERATURE (K) (3 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=280.0000, expected range: 347.0797 422.8092
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 600-900 (HPA : out of range
Considerable: avg_fgdepar=8.8069, expected range: -0.4475 5.0122
Considerable: rms_fgdepar=9.7972, expected range: 0.0000 6.1521
amdar
AMDAR WIND VECTOR DIFF (M/S) JP9ZV879 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.9695, expected range: 0.0000 8.6944
AMDAR WIND VECTOR DIFF (M/S) AU0148 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=15.2939, expected range: 0.0000 6.4497
WIGOS AMDAR WIND VECTOR DIFF (M/S) MVIXOAJA PRESSURE LAYER 900-1200 (H : out of range
Severe: rms_fgdepar=15.8122, expected range: 0.0000 5.9715
airep
AIREP WIND VECTOR DIFF (M/S) AAL22 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=18.5789, expected range: 0.0000 8.2231
AIREP WIND VECTOR DIFF (M/S) AAL265 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=19.3696, expected range: 0.0000 5.6374
AIREP WIND VECTOR DIFF (M/S) BAW21G PRESSURE LAYER 0-300 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=23.9450, expected range: 0.0000 8.8598
Severe: avg_pge=0.8491, expected range: -0.3467 0.4467
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 10339 PRESSURE LAYER 600-900 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8504, expected range: -0.7760 0.7500
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 67083 PRESSURE LAYER 300-600 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8365, expected range: -0.5846 0.7500
LAND PILOT WIND VECTOR DIFF (M/S) 97690 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=20.9195, expected range: 0.0000 8.7478
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42711 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9142, expected range: -1.2656 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=7.0244, expected range: -0.9083 0.9814
BUFR LAND SYNOP RH2M (%) 94439 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=1.0000, expected range: -2.0903 0.7500
MANUAL LAND SYNOP RH2M (%) 17175 : out of range
Severe: rms_fgdepar=27.0086, expected range: 0.0000 15.4073
MANUAL LAND SYNOP RH2M (%) 35108 : out of range
Severe: avg_pge=0.8363, expected range: -0.3305 0.4210
MANUAL LAND SYNOP RH2M (%) 40708 : out of range
Severe: rms_fgdepar=40.0357, expected range: 0.0000 22.2148
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43330 : out of range
Severe: avg_pge=0.8253, expected range: -1.0433 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 86260 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=589.4620, expected range: 0.0000 443.7528
Severe: avg_pge=0.9080, expected range: -1.0133 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 97284 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=324.1471, expected range: 0.0000 108.1051
Severe: avg_pge=0.8016, expected range: -0.9146 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40606 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=390.1942, expected range: 0.0000 185.2520
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83916 : out of range
Severe: rms_fgdepar=303.8907, expected range: 0.0000 141.6569
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40646 : out of range
Severe: rms_fgdepar=1059.7310, expected range: 0.0000 129.6652
Severe: avg_pge=0.9453, expected range: -0.8349 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42948 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=448.4331, expected range: 0.0000 315.5600
Severe: avg_pge=0.8512, expected range: -1.2244 0.7500
BUFR LAND SYNOP RH2M (%) 70260 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9618, expected range: -1.4823 0.7500
BUFR LAND SYNOP RH2M (%) 34691 : out of range
Severe: avg_pge=0.8008, expected range: -0.1222 0.1498
BUFR LAND SYNOP RH2M (%) 71354 : out of range
Severe: rms_fgdepar=43.5412, expected range: 0.0000 38.4095
Severe: avg_pge=0.8734, expected range: -0.0260 0.0371
BUFR LAND SYNOP RH2M (%) 22028 : out of range
Severe: rms_fgdepar=16.8241, expected range: 0.0000 9.0727
BUFR LAND SYNOP RH2M (%) 95628 : out of range
Severe: avg_pge=0.9760, expected range: -1.6685 0.7500
BUFR LAND SYNOP RH2M (%) 72688 : out of range
Severe: rms_fgdepar=32.4499, expected range: 0.0000 9.2832
BUFR LAND SYNOP RH2M (%) 33869 : out of range
Severe: rms_fgdepar=37.3327, expected range: 0.0000 18.5596
BUFR LAND SYNOP RH2M (%) : out of range
Severe: obs_number=66.0000, expected range: 67.0000 67.0000
BUFR LAND SYNOP SURFACE PRESSURE (PA) 61415 : out of range
Severe: rms_fgdepar=572.6864, expected range: 0.0000 218.2928
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94866 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=345.1411, expected range: 0.0000 163.9516
BUFR LAND SYNOP SURFACE PRESSURE (PA) 28867 : out of range
Severe: rms_fgdepar=308.3489, expected range: 0.0000 131.4975
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24219 : out of range
Severe: rms_fgdepar=521.0282, expected range: 0.0000 220.1635
ship
AUTOMATIC SHIP WIND VECTOR DIFF (M/S) 42013 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8296, expected range: -1.3155 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) 44058 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8245, expected range: 0.7035 0.7500
SHIP SURFACE PRESSURE (PA) UDKG : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8750, expected range: -0.8769 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) LF4J : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9269, expected range: 0.3048 0.7500
SHIP SURFACE PRESSURE (PA) WDJ4909 : out of range
Severe: rms_fgdepar=545.9636, expected range: 0.0000 448.8080
Severe: avg_pge=0.8661, expected range: -0.1005 0.7500
SHIP SURFACE PRESSURE (PA) V7QK9 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=599.4026, expected range: 0.0000 534.2728
Severe: avg_pge=0.8921, expected range: -0.4434 0.7500
SHIP SURFACE PRESSURE (PA) VSQL9 : out of range
Severe: rms_fgdepar=813.3604, expected range: 0.0000 401.1107
Severe: avg_pge=0.9229, expected range: -0.9440 0.7500
SHIP SURFACE PRESSURE (PA) WPTC : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8772, expected range: 0.3604 0.7500
SHIP SURFACE PRESSURE (PA) WAHG : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=448.3063, expected range: 0.0000 235.6053
buoy
MOORED BUOYS SURFACE PRESSURE (PA) 6101001 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8394, expected range: -0.6495 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=5.5859, expected range: -1.8090 1.9303
DRIFTING BUOYS SURFACE PRESSURE (PA) 2101634 : out of range
Severe: avg_pge=0.8019, expected range: -1.0519 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2201558 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8547, expected range: -1.1473 0.7500
metar
METAR SURFACE PRESSURE (PA) UBEE : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=427.6531, expected range: 0.0000 213.8268
METAR SURFACE PRESSURE (PA) KDAY : out of range
Severe: rms_fgdepar=301.7367, expected range: 0.0000 141.5811
snow
AUTOMATIC LAND SYNOP SNOW (CM) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-5.4417, expected range: -0.0277 0.0324
Severely_persistent: rms_fgdepar=98.7965, expected range: -0.4824 0.6139
BUFR LAND SYNOP SNOW (CM) : out of range
10 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=0.0294, expected range: -0.0011 0.0013
Severely_persistent: avg_fgdepar=-0.0036, expected range: -0.0001 0.0001
t2m
METAR 2M TEMPERATURE (K) URWA : out of range
Severe: rms_fgdepar=7.9928, expected range: 0.3487 4.2122
METAR 2M TEMPERATURE (K) KMOD : out of range
Severe: rms_fgdepar=7.9884, expected range: 1.6458 4.6392
METAR 2M TEMPERATURE (K) KDPG : out of range
Severe: rms_fgdepar=9.6335, expected range: 0.0000 5.2408
METAR 2M TEMPERATURE (K) CYSK : out of range
Severe: rms_fgdepar=7.5018, expected range: 0.0000 2.7181
METAR 2M TEMPERATURE (K) GCXO : out of range
Severe: rms_fgdepar=8.6097, expected range: 0.0000 3.4826
BUFR LAND SYNOP 2M TEMPERATURE (K) 89507 : out of range
3 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8126, expected range: -0.1808 1.1386
rh2m
MANUAL LAND SYNOP RH2M (%) 68054 : out of range
Severe: rms_fgdepar=38.2089, expected range: 0.0000 14.3383
MANUAL LAND SYNOP RH2M (%) 83526 : out of range
Severe: rms_fgdepar=36.5520, expected range: 0.0000 15.6289