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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2020-01-13 00:00

amsua
METOP-C AMSUA RADIANCES (12 channels affected) : out of range
Considerable: obs_number=6557.0000, expected range: 8557.2117 15156.4354
Atmospheric Motion Vector
All METEOSAT-11 AMV IR3 ALL LAYERS Global : all data missing
Severe: obs_number=0, expected range: 80.14 4424.75
AQUA MODIS CLEAR WV WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=631.0000, expected range: 215.1152 535.1348
HIMAWARI-8 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=1021.0000, expected range: 1501.7932 2654.2068
GOES-17 AMV IR1 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: stdev_press=71.0339, expected range: 75.8036 91.7499
Slight: avg_press=834.2604, expected range: 790.6335 824.4547
METEOSAT-8 AMV IR3 WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : out of range
Slight: obs_number=2298.0000, expected range: 874.3695 2035.4083
Geostationary CSR
METEOSAT-8 SEVIRI RADIANCES CHANNEL 2 : out of range
Considerable: obs_number=48092.0000, expected range: 25416.5695 40312.2726
METEOSAT-8 SEVIRI RADIANCES CHANNEL 3 : out of range
Considerable: obs_number=26464.0000, expected range: 12118.2857 22568.8254
Radiosondes
LAND TEMP TEMPERATURE (K) 30635 PRESSURE LAYER 900-1200 (HPA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8091, expected range: -0.9283 0.7500
LAND TEMP TEMPERATURE (K) 30758 PRESSURE LAYER 900-1200 (HPA) : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8874, expected range: 0.2875 0.7500
All HIGH RESO SEA TEMP ALL LAYERS Tropics : all data missing
Severely_persistent: obs_number=0, expected range: 50.43 156.71
LAND TEMP TEMPERATURE (K) 36003 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=9.3239, expected range: 0.0000 1.9471
Severe: avg_pge=0.8246, expected range: -0.4333 0.6277
LAND TEMP TEMPERATURE (K) 30230 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=9.4105, expected range: 0.0000 3.1764
Severe: avg_pge=0.9125, expected range: -0.7727 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 43295 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=20.6059, expected range: 1.9161 7.9208
Severe: avg_pge=0.8044, expected range: -0.1261 0.3470
HIGH RESO LAND TEMP TEMPERATURE (K) 47186 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=6.2733, expected range: 0.0000 2.7551
HIGH RESO LAND TEMP TEMPERATURE (K) 47186 PRESSURE LAYER 900-1200 (HPA : out of range
Severe: avg_pge=0.8299, expected range: -0.4921 0.7500
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: 50.2227 74.4439
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 84 : all data missing
Severe: obs_number=0, expected range: 103.05 152.62
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 95 : all data missing
Severe: obs_number=0, expected range: 83.62 164.83
HIGH RESO SEA TEMP Q (G/KG) (2 pressure layers affected) : missing
Severe: obs_number=0.0000, expected range: 0.0000 292.1241
All HIGH RESO SEA TEMP ALL LAYERS Alantic Tropical are : all data missing
Severe: obs_number=0, expected range: 50.43 156.71
LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: obs_number=139.0000, expected range: 163.9643 221.0357
amdar
AMDAR TEMPERATURE (K) CNJCA114 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=6.5942, expected range: 0.0000 1.8001
WIGOS AMDAR TEMPERATURE (K) SL0036 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=6.6332, expected range: 0.1105 1.2287
WIGOS AMDAR WIND VECTOR DIFF (M/S) MTQUIRZA PRESSURE LAYER 300-600 (HP : out of range
Severe: rms_fgdepar=18.8269, expected range: 0.0000 6.7119
Severe: avg_pge=0.8256, expected range: -0.1954 0.2542
WIGOS AMDAR Q (G/KG) SVWUOFJA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.8074, expected range: 0.0000 1.8534
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 10629 PRESSURE LAYER 600-900 : out of range
Severe: avg_pge=0.8414, expected range: -0.7631 0.7500
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 43295 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.1400, expected range: 3.0753 4.8501
Severe: avg_pge=0.8141, expected range: 0.0053 0.1257
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42744 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=407.5052, expected range: 0.0000 275.5848
Severely_persistent: avg_pge=0.8582, expected range: -1.1640 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42409 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8856, expected range: -1.2335 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48062 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8916, expected range: -1.1318 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24585 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8656, expected range: 0.4749 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71648 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9050, expected range: -1.4303 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42471 : out of range
Severe: avg_pge=0.8817, expected range: -1.3668 0.7500
Severe: rms_fgdepar=508.0556, expected range: 0.0000 401.6423
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 91353 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=395.1299, expected range: 0.0000 227.7773
Severe: avg_pge=0.8604, expected range: -0.7697 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42453 : out of range
Severe: rms_fgdepar=416.9778, expected range: 0.0000 185.7862
Severe: avg_pge=0.8545, expected range: -0.9326 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 38705 : out of range
Severe: avg_pge=0.8001, expected range: -0.6981 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 41678 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8625, expected range: -1.2636 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 78488 : out of range
Severe: rms_fgdepar=709.0818, expected range: 0.0000 367.2331
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42139 : out of range
Severe: rms_fgdepar=415.4268, expected range: 0.0000 163.0881
MANUAL LAND SYNOP RH2M (%) 42413 : out of range
Severe: rms_fgdepar=33.3011, expected range: 0.0000 16.1235
MANUAL LAND SYNOP RH2M (%) 87436 : out of range
Severe: rms_fgdepar=31.4313, expected range: 0.0000 16.6373
MANUAL LAND SYNOP RH2M (%) 64708 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9549, expected range: -1.3773 0.7500
MANUAL LAND SYNOP RH2M (%) 87509 : out of range
Severe: rms_fgdepar=40.1735, expected range: 0.0000 15.5374
BUFR LAND SYNOP SURFACE PRESSURE (PA) 17510 : out of range
Severe: rms_fgdepar=834.5112, expected range: 0.0000 166.7785
Severe: avg_pge=0.9390, expected range: -0.4571 0.6926
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71660 : out of range
Severe: avg_pge=0.8348, expected range: -0.7085 0.7500
Severe: rms_fgdepar=432.9877, expected range: 0.0000 367.4022
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71114 : out of range
Severe: rms_fgdepar=419.3707, expected range: 0.0000 148.4494
BUFR LAND SYNOP SURFACE PRESSURE (PA) 01205 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8277, expected range: -0.4172 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71966 : out of range
Severe: avg_pge=0.8478, expected range: -1.2142 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71187 : out of range
Severe: rms_fgdepar=409.4317, expected range: 0.0000 129.3831
BUFR LAND SYNOP SURFACE PRESSURE (PA) 04018 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=411.7669, expected range: 0.0000 137.6821
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24588 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8186, expected range: 0.2691 0.7500
BUFR LAND SYNOP RH2M (%) 94466 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9991, expected range: -1.3223 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 04149 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8180, expected range: 0.2110 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=77.0000, expected range: 81.9289 96.0711
ship
SHIP SURFACE PRESSURE (PA) : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9171, expected range: -0.9098 0.7500
Severely_persistent: avg_fgdepar=-379.1294, expected range: -152.7216 165.9443
Severely_persistent: avg_pge=0.8134, expected range: -0.3449 0.7500
Severely_persistent: avg_pge=0.8958, expected range: -0.9256 0.7500
Severely_persistent: avg_pge=0.9171, expected range: -1.0168 0.7500
Severely_persistent: avg_pge=0.8958, expected range: -0.9353 0.7500
SHIP SURFACE PRESSURE (PA) A8OR8 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8958, expected range: -0.5218 0.7500
SHIP SURFACE PRESSURE (PA) 9V5241 : out of range
Severe: rms_fgdepar=379.1294, expected range: 0.0000 296.1810
Severe: avg_pge=0.8134, expected range: -0.8331 0.7500
SHIP SURFACE PRESSURE (PA) C6AB8 : out of range
Severe: avg_pge=0.9171, expected range: 0.2741 0.7500
All ABBREVIATED SHIP North West Pacific : all data missing
Severe: obs_number=0, expected range: 45.84 136.34
buoy
MOORED BUOYS SURFACE PRESSURE (PA) : out of range
3 times in the last 10 days for at least one item
Severe: obs_number=78.0000, expected range: 87.9507 98.3826
DRIFTING BUOYS SURFACE PRESSURE (PA) 4401562 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=576.6416, expected range: 0.0000 178.1272
Severe: avg_pge=0.9136, expected range: -0.3078 0.5189
DRIFTING BUOYS SURFACE PRESSURE (PA) 4401563 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=493.1710, expected range: 0.0000 187.8871
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
3 times in the last 10 days for at least one item
Considerable: obs_number=346.0000, expected range: 254.5739 327.6483
metar
METAR SURFACE PRESSURE (PA) FDSK : out of range
Severe: rms_fgdepar=394.6812, expected range: 0.0000 157.2406
METAR SURFACE PRESSURE (PA) DAOL : out of range
Severe: rms_fgdepar=321.6236, expected range: 0.0000 135.6220
METAR SURFACE PRESSURE (PA) KMSV : out of range
Severe: rms_fgdepar=521.9430, expected range: 0.0000 150.1174
AUTOMATIC METAR SURFACE PRESSURE (PA) CYHE : out of range
Severe: rms_fgdepar=372.3208, expected range: 0.0000 189.5056
snow
MANUAL LAND SYNOP SNOW (CM) 70340 : out of range
Severe: rms_fgdepar=17.9442, expected range: -2.9997 4.8633
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71001 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8285, expected range: -0.2879 1.4260
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71195 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8309, expected range: -0.1596 1.3785
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89828 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8201, expected range: 0.4169 1.0529
LAND TEMP 2M TEMPERATURE (K) 30372 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8436, expected range: 0.4491 1.1207
BUFR LAND SYNOP 2M TEMPERATURE (K) 51542 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8524, expected range: 0.8027 0.9179
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71492 : out of range
Severe: rms_fgdepar=10.3285, expected range: 0.0000 5.0811
MANUAL LAND SYNOP 2M TEMPERATURE (K) 42413 : out of range
Severe: rms_fgdepar=16.7492, expected range: 0.0000 7.7224
Severe: avg_est_pge=0.8289, expected range: -0.3345 0.8022
MANUAL LAND SYNOP 2M TEMPERATURE (K) 30714 : out of range
Severe: avg_est_pge=0.8057, expected range: -0.3224 1.2804
MANUAL LAND SYNOP 2M TEMPERATURE (K) 29674 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8027, expected range: -0.4806 1.0122
METAR 2M TEMPERATURE (K) LOWG : out of range
Severe: rms_fgdepar=10.4215, expected range: 0.4856 4.8471
METAR 2M TEMPERATURE (K) SCCH : out of range
Severe: rms_fgdepar=10.5678, expected range: 0.0000 6.0252
METAR 2M TEMPERATURE (K) SESM : out of range
Severe: rms_fgdepar=12.5761, expected range: 0.4986 6.6329
LAND TEMP 2M TEMPERATURE (K) 30230 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8376, expected range: -0.6467 1.2216
LAND TEMP 2M TEMPERATURE (K) 29572 : out of range
2 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8788, expected range: -0.4178 1.2852
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 71506 : out of range
Severe: rms_fgdepar=31.0212, expected range: 0.0000 13.8753