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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-06-27 12:00

amsua
METOP-B AMSUA ALL SKY RADIANCES CHANNEL 13 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1085, expected range: 0.1615 0.1869
iasi
METOP-B IASI RADIANCES CHANNEL 2907 : out of range
4 times in the last 10 days for at least one item
Considerable: obs_number=541.0000, expected range: 56.7862 294.4944
METOP-B IASI RADIANCES CHANNEL 2958 : out of range
3 times in the last 10 days for at least one item
Considerable: obs_number=425.0000, expected range: 34.6324 219.4945
METOP-C IASI RADIANCES CHANNEL 2889 : out of range
3 times in the last 10 days for at least one item
Considerable: obs_number=379.0000, expected range: 43.6797 173.7813
METOP-C IASI RADIANCES CHANNEL 2907 : out of range
4 times in the last 10 days for at least one item
Considerable: obs_number=587.0000, expected range: 86.2620 275.3543
METOP-C IASI RADIANCES CHANNEL 2944 : out of range
3 times in the last 10 days for at least one item
Considerable: obs_number=374.0000, expected range: 39.3269 173.4384
METOP-C IASI RADIANCES CHANNEL 2958 : out of range
3 times in the last 10 days for at least one item
Considerable: obs_number=461.0000, expected range: 61.7324 204.8152
METOP-C IASI RADIANCES CHANNEL 3029 : out of range
3 times in the last 10 days for at least one item
Considerable: obs_number=750.0000, expected range: 108.0940 414.1740
METOP-C IASI RADIANCES CHANNEL 3049 : out of range
3 times in the last 10 days for at least one item
Considerable: obs_number=700.0000, expected range: 98.2486 378.4168
cris
NOAA20 CRIS RADIANCES CHANNEL 64 : out of range
Slight: stdev_fgdepar=0.1261, expected range: 0.0985 0.1255
atms
NPP ATMS RADIANCES CHANNEL 18 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: obs_number=222.0000, expected range: 6.5026 9.4520
NPP ATMS RADIANCES CHANNEL 19 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: obs_number=224.0000, expected range: 6.4167 9.7180
ssmis
DMSP-17 SSMIS RADIANCES CHANNEL 7 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: stdev_norm_fgdepar=0.0052, expected range: 0.0041 0.0047
Atmospheric Motion Vector
All AQUA MODIS CLEAR WV ALL LAYERS Global : all data missing
Severe: obs_number=0, expected range: 257.15 932.27
Radiosondes
LAND TEMP Q (G/KG) 38341 PRESSURE LAYER 900-1200 (HPA) : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=9.5082, expected range: -2.1785 12.5743
Severely_persistent: rms_fgdepar=9.5146, expected range: 0.0000 12.5938
All HIGH RESO SEA TEMP ALL LAYERS North East Pacific : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 509.33
LAND TEMP Q (G/KG) 42647 PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=9.0134, expected range: -4.4224 2.0772
Severe: rms_fgdepar=9.6735, expected range: 0.0000 4.4346
All LAND TEMP ALL LAYERS WMO BLOCK 16 : all data missing
Severe: obs_number=0, expected range: 45.93 89.82
HIGH RESO LAND TEMP Q (G/KG) 27459 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.6154, expected range: 0.4780 1.6913
HIGH RESO LAND TEMP Q (G/KG) (2 pressure layers affected) : out of range
Severe: obs_number=1049.0000, expected range: 1222.1328 1257.6450
Considerable: rms_fgdepar=2.2878, expected range: 0.4598 1.6378
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 20 : all data missing
Severe: obs_number=0, expected range: 128.06 158.38
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (4 pressure layers affected : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=139.0000, expected range: 1.2990 27.4510
amdar
AMDAR TEMPERATURE (K) CNJCA117 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_fgdepar=13.9321, expected range: -0.9920 0.6673
AMDAR TEMPERATURE (K) CNJCA117 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=14.0615, expected range: 0.2425 1.3169
Severe: avg_pge=0.9410, expected range: -0.1063 0.1924
AMDAR WIND VECTOR DIFF (M/S) CNJCA117 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_fgdepar=23.5504, expected range: 0.3693 4.7964
Severe: avg_pge=0.8832, expected range: -0.1427 0.2212
AMDAR WIND VECTOR DIFF (M/S) CNJCA117 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=23.5504, expected range: 0.3288 5.5671
ADS-C WIND VECTOR DIFF (M/S) 1HFRTXBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=27.9706, expected range: 0.0000 12.3750
ADS-C WIND VECTOR DIFF (M/S) O1L0VZBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.8751, expected range: 1.4033 8.0188
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : missing
3 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 0.0000 813.9118
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 65503 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=27.6202, expected range: 1.7196 10.6191
synop
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41573 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=906.2703, expected range: 623.5258 1090.0997
Severely_persistent: rms_fgdepar=908.0669, expected range: 625.0191 1089.6653
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 89571 : out of range
Severe: rms_fgdepar=393.0565, expected range: 0.0000 191.8283
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 63474 : out of range
Severe: rms_fgdepar=518.0435, expected range: 0.0000 143.8387
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42577 : out of range
Severe: rms_fgdepar=434.4126, expected range: 0.0000 380.2580
Severe: avg_pge=0.8764, expected range: -0.9309 0.7500
MANUAL LAND SYNOP RH2M (%) 42361 : out of range
Severe: rms_fgdepar=37.0925, expected range: 0.0000 25.1798
Severe: avg_pge=0.8407, expected range: -0.0003 0.0066
MANUAL LAND SYNOP RH2M (%) 47119 : out of range
Severe: rms_fgdepar=37.1222, expected range: 9.9820 31.4261
Severe: avg_pge=0.9941, expected range: -0.0824 0.1375
MANUAL LAND SYNOP RH2M (%) 36729 : out of range
Severe: rms_fgdepar=41.5856, expected range: 0.0000 20.2483
MANUAL LAND SYNOP RH2M (%) 43169 : out of range
Severe: avg_pge=0.9736, expected range: -0.0612 0.0794
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48064 : out of range
Severe: avg_pge=0.8126, expected range: -0.6663 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 42557 : out of range
Severe: avg_pge=0.8286, expected range: -1.3844 0.7500
BUFR LAND SYNOP RH2M (%) 02836 : out of range
Severe: rms_fgdepar=33.7225, expected range: 0.0000 15.7158
BUFR LAND SYNOP RH2M (%) 24738 : out of range
Severe: rms_fgdepar=32.2777, expected range: 0.0000 17.3822
BUFR LAND SYNOP RH2M (%) 36658 : out of range
Severe: rms_fgdepar=37.7932, expected range: 0.0000 16.8176
Severe: avg_pge=0.9938, expected range: -0.0004 0.0069
ship
SHIP WIND VECTOR DIFF (M/S) VRKX7 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=20.4162, expected range: -1.6055 50.0494
Severely_persistent: rms_fgdepar=20.4162, expected range: 1.0986 47.9637
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9HA3182 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=21.2663, expected range: 0.0639 31.0590
Severely_persistent: rms_fgdepar=21.2663, expected range: 0.0838 31.0500
Severely_persistent: avg_pge=0.9266, expected range: 0.5260 0.7500
All BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) WMO BLOCK 8 : all data missing
Severely_persistent: obs_number=0, expected range: 113.17 195.92
BUFR SHIP SYNOP SURFACE PRESSURE (PA) BAWPAEG : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=647.4373, expected range: 91.3500 1119.1950
Severely_persistent: rms_fgdepar=648.6272, expected range: 90.1228 1121.3412
All BUFR SHIP SYNOP WMO BLOCK 45 : all data missing
Severely_persistent: obs_number=0, expected range: 226.04 243.56
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HA4048 : out of range
Severe: avg_fgdepar=1302.3973, expected range: -323.4138 590.8385
Severe: rms_fgdepar=1302.3973, expected range: 0.0000 542.4777
Severe: avg_pge=0.9189, expected range: -0.9677 0.7500
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 2200188 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8784, expected range: -0.8319 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5102722 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8777, expected range: -1.1032 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6204596 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8674, expected range: -1.0848 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 3101513 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=423.0502, expected range: 0.0000 325.8176
Severe: avg_pge=0.8445, expected range: -0.7936 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2201596 : out of range
Severe: rms_fgdepar=315.3195, expected range: 0.0000 246.5000
Severe: avg_pge=0.8380, expected range: -0.8937 0.7500
metar
METAR SURFACE PRESSURE (PA) SCDA : out of range
Severe: rms_fgdepar=341.6387, expected range: 0.7945 87.4651
METAR SURFACE PRESSURE (PA) SEMC : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=494.7085, expected range: 0.0000 223.1522
METAR SURFACE PRESSURE (PA) FAGM : out of range
Severe: rms_fgdepar=634.5247, expected range: 0.0000 357.8631
METAR SURFACE PRESSURE (PA) HTMW : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=527.8911, expected range: -91.9846 122.2146
Severe: rms_fgdepar=528.2046, expected range: 0.0000 149.8688
snow
MANUAL LAND SYNOP SNOW (CM) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-3301.3332, expected range: -437.6335 319.9220
Severely_persistent: rms_fgdepar=3301.3332, expected range: -1030.0350 1429.5453
BUFR LAND SYNOP SNOW (CM) _MI1BC83 : out of range
28 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=58.4000, expected range: 44.3793 65.3299
BUFR LAND SYNOP SNOW (CM) _MI1BC83 : out of range
28 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=59.3363, expected range: 46.1613 65.3247
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=-772.7026, expected range: -775.2108 -770.8828
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=772.7027, expected range: 770.8828 775.2108
BUFR LAND SYNOP SNOW (CM) _MI11588 : out of range
31 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=61.0556, expected range: 40.3038 72.3884
BUFR LAND SYNOP SNOW (CM) _MI11588 : out of range
31 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=61.1551, expected range: 40.8964 72.5065
BUFR LAND SYNOP SNOW (CM) _MI1067E : out of range
34 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=56.2000, expected range: 54.9723 64.7114
BUFR LAND SYNOP SNOW (CM) _MI1067E : out of range
34 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=57.2957, expected range: 55.9857 64.7530
t2m
METAR 2M TEMPERATURE (K) VECX : out of range
8 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=12.0549, expected range: 6.1925 15.0403
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI140F8 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=16.5033, expected range: -10.6999 29.8598
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI140F8 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=16.5355, expected range: 0.0000 28.0178
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 11450 : out of range
Severe: rms_fgdepar=10.3014, expected range: 0.2674 5.4463
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 68353 : out of range
Severe: rms_fgdepar=11.3764, expected range: 0.0000 6.4629
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 51777 : out of range
Severe: avg_fgdepar=-13.0915, expected range: -14.5125 12.2463
Severe: rms_fgdepar=13.0915, expected range: 0.0000 10.4812
MANUAL LAND SYNOP 2M TEMPERATURE (K) 41560 : out of range
Severe: rms_fgdepar=12.1572, expected range: 0.0000 13.7050
MANUAL LAND SYNOP 2M TEMPERATURE (K) 62007 : out of range
Severe: avg_fgdepar=-12.5516, expected range: -12.9394 5.3617
Severe: rms_fgdepar=12.5792, expected range: 0.0000 11.9501
MANUAL LAND SYNOP 2M TEMPERATURE (K) 62458 : out of range
Severe: rms_fgdepar=10.6515, expected range: 0.3201 2.8776
BUFR LAND SYNOP 2M TEMPERATURE (K) 41560 : out of range
Severe: avg_fgdepar=-12.0342, expected range: -15.5831 13.2585
Severe: rms_fgdepar=12.2163, expected range: 0.0000 12.6106
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=69.0000, expected range: 76.2591 77.6356
rh2m
METAR RH2M (%) SCNT : out of range
Severe: rms_fgdepar=37.3030, expected range: 11.9549 25.8396
BUFR LAND SYNOP RH2M (%) 89504 : out of range
Severe: rms_fgdepar=30.2450, expected range: 0.0000 16.9548