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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2020-01-18 12:00

airs
AQUA AIRS RADIANCES CHANNEL 1794 : missing
6 times in the last 10 days for at least one item
Severely_persistent: obs_number=0.0000, expected range: 3529.9597 16443.6185
atms
NOAA20 ATMS RADIANCES CHANNEL 7 : out of range
Considerable: stdev_fgdepar=0.1165, expected range: 0.0752 0.1074
gpsro
METOP-C GRAS SETTING HEIGHT 11 : out of range
Slight: avg_norm_fgdepar=0.0237, expected range: -0.1693 0.0043
METOP-C GRAS RISING HEIGHT 7 : out of range
1 times in the last 10 days for at least one item
Slight: stdev_norm_fgdepar=0.8442, expected range: 0.8736 1.0426
Atmospheric Motion Vector
GOES-17 AMV IR1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 600-900 (HPA) : out of range
3 times in the last 10 days for at least one item
Slight: stdev_press=98.6345, expected range: 78.8789 96.3632
resat
METOP-B GOME-2 OZONE, TOP PRESSURE LAYER 0-1 (HPA) : out of range
Considerable: obs_number=14396.0000, expected range: 11691.3035 13481.4465
Radiosondes
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 67 : all data missing
Severely_persistent: obs_number=0, expected range: 40.75 172.75
All HIGH RESO LAND TEMP ALL LAYERS Indian Ocean Tropica : all data missing
Severely_persistent: obs_number=0, expected range: 32.81 190.39
LAND TEMP TEMPERATURE (K) 32618 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=7.0450, expected range: 0.0000 2.7880
LAND TEMP TEMPERATURE (K) 44212 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=8.3110, expected range: 2.2906 5.6443
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.7145, expected range: 0.4026 1.9657
LAND TEMP WIND VECTOR DIFF (M/S) 22522 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=21.5384, expected range: 0.0000 8.6733
LAND TEMP WIND VECTOR DIFF (M/S) 22522 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_pge=0.8738, expected range: -0.4546 0.6528
HIGH RESO LAND TEMP TEMPERATURE (K) 54662 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=8.5408, expected range: 0.2996 2.3731
HIGH RESO LAND TEMP TEMPERATURE (K) 54662 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_pge=0.8108, expected range: -0.0681 0.1779
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=443.0000, expected range: 518.8206 537.4651
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 58633 PRESSURE LAYER 300-60 : out of range
Severe: rms_fgdepar=18.7573, expected range: 0.0015 8.6479
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=70.0000, expected range: 123.1994 161.3720
HIGH RESO LAND TEMP Q (G/KG) 60630 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.0027, expected range: 0.0000 1.0663
HIGH RESO LAND TEMP Q (G/KG) 61660 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=4.5798, expected range: 0.0000 3.3087
Severe: avg_pge=0.8182, expected range: -0.9128 0.7500
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
Severe: obs_number=396.0000, expected range: 524.5745 534.9255
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 0-300 (HPA) : out of range
Severe: obs_number=222.0000, expected range: 188.8983 203.9906
All HIGH RESO SEA TEMP ALL LAYERS North East Pacific : all data missing
Severe: obs_number=0, expected range: 277.39 312.61
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: obs_number=134.0000, expected range: 66.2623 106.0235
Considerable: obs_number=348.0000, expected range: 252.8426 314.8717
LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
Considerable: rms_fgdepar=1.2327, expected range: 0.3508 0.8985
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) WU4VGZJA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=17.6097, expected range: 0.0000 7.1953
airep
AIREP WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : out of range
Severe: obs_number=708.0000, expected range: 15.4624 274.5376
Severe: obs_number=627.0000, expected range: 0.0000 276.1662
AIREP WIND VECTOR DIFF (M/S) RAM208M PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.0930, expected range: 0.0000 6.9690
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 07145 PRESSURE LAYER 900-1200 : out of range
Severe: rms_fgdepar=20.8682, expected range: 0.0000 10.7859
Severe: avg_pge=0.9242, expected range: -0.4003 0.7500
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : missing
1 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 0.0000 926.3292
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 61442 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=53.1100, expected range: 0.7388 6.6314
Severe: avg_pge=0.9410, expected range: -0.1142 0.2846
LAND PILOT WIND VECTOR DIFF (M/S) 43346 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=16.5787, expected range: 0.0000 4.3166
synop
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71021 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9345, expected range: -0.6097 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 70333 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8504, expected range: -0.7685 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71648 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8940, expected range: -1.0739 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 95322 : out of range
Severe: rms_fgdepar=369.5710, expected range: 0.0000 184.7687
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 89014 : out of range
Severe: rms_fgdepar=498.6562, expected range: 0.0000 173.8615
Severe: avg_pge=0.8436, expected range: -0.2571 0.3529
AUTOMATIC LAND SYNOP RH2M (%) 68182 : out of range
Severe: rms_fgdepar=32.2355, expected range: 0.0000 14.3178
AUTOMATIC LAND SYNOP RH2M (%) 68183 : out of range
Severe: rms_fgdepar=33.5236, expected range: 0.0000 11.3298
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 84010 : out of range
Severe: rms_fgdepar=342.8670, expected range: 0.0000 165.8248
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 67221 : out of range
Severe: rms_fgdepar=335.2759, expected range: 0.0000 285.2847
Severe: avg_pge=0.8042, expected range: -0.6679 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 85151 : out of range
Severe: rms_fgdepar=337.4953, expected range: 0.0000 191.2185
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 38222 : out of range
Severe: rms_fgdepar=720.9380, expected range: 0.0000 224.0163
Severe: avg_pge=0.9181, expected range: -0.5749 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 36974 : out of range
Severe: rms_fgdepar=406.3188, expected range: 21.4924 366.8484
Severe: avg_pge=0.8011, expected range: -0.2481 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 61995 : out of range
Severe: rms_fgdepar=801.0387, expected range: 0.0000 178.0236
Severe: avg_pge=0.9238, expected range: -0.3093 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42456 : out of range
Severe: rms_fgdepar=338.5266, expected range: 0.0000 277.0253
Severe: avg_pge=0.8308, expected range: -1.4402 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40637 : out of range
Severe: rms_fgdepar=757.3555, expected range: 0.0000 211.2849
MANUAL LAND SYNOP RH2M (%) 43301 : out of range
Severe: rms_fgdepar=30.0377, expected range: 0.0000 15.2534
MANUAL LAND SYNOP RH2M (%) 68192 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=36.7930, expected range: 0.0000 7.4205
MANUAL LAND SYNOP RH2M (%) 38583 : out of range
Severe: rms_fgdepar=45.6842, expected range: 0.0000 21.1984
MANUAL LAND SYNOP RH2M (%) 17096 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9716, expected range: -0.4442 0.5658
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=101.0000, expected range: 111.0000 121.0000
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48952 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=557.9678, expected range: 0.0000 239.4003
Severe: avg_pge=0.9030, expected range: -1.4887 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 23226 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=573.0173, expected range: 0.0000 170.8116
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24826 : out of range
Severe: rms_fgdepar=564.1199, expected range: 0.0000 179.7890
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71966 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8730, expected range: -0.7421 0.7500
BUFR LAND SYNOP RH2M (%) 33791 : out of range
Severe: rms_fgdepar=31.7711, expected range: 0.0000 17.8850
BUFR LAND SYNOP RH2M (%) 33723 : out of range
Severe: rms_fgdepar=32.9106, expected range: 0.0000 12.5629
BUFR LAND SYNOP RH2M (%) 33019 : out of range
Severe: rms_fgdepar=34.1502, expected range: 0.0000 12.0635
MANUAL LAND SYNOP RH2M (%) : out of range
Considerable: obs_number=52.0000, expected range: 64.5644 88.8641
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V7987 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9195, expected range: 0.5632 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) V7IY5 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8831, expected range: -1.2361 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 46206 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=19.9391, expected range: 0.0000 11.6037
Severe: avg_pge=0.8589, expected range: -0.5753 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OXVI2 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=301.9914, expected range: 0.0000 91.0659
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 2GNG3 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8681, expected range: 0.6016 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRBJ5 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8054, expected range: 0.5551 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V6386 : out of range
Severe: rms_fgdepar=777.5442, expected range: 0.0000 306.9171
BUFR SHIP SYNOP SURFACE PRESSURE (PA) LAIG7 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8050, expected range: 0.1510 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7LE8 : out of range
Severe: avg_pge=0.8376, expected range: -0.6156 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRPF9 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8507, expected range: -0.1023 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) LF4Q : out of range
Severe: avg_pge=0.8390, expected range: -0.7559 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) PDHW : out of range
Severe: rms_fgdepar=862.3666, expected range: 0.0000 476.3488
Severe: avg_pge=0.8000, expected range: -0.1903 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 4602502 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9158, expected range: -1.7250 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5501630 : out of range
Severe: rms_fgdepar=375.0302, expected range: 0.0000 71.4374
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101754 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=392.6980, expected range: 0.0000 65.3866
DRIFTING BUOYS SURFACE PRESSURE (PA) 1701516 : out of range
Severe: rms_fgdepar=355.3885, expected range: 0.0000 93.9241
DRIFTING BUOYS SURFACE PRESSURE (PA) 6203576 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=413.8951, expected range: 0.0000 196.2013
Severe: avg_pge=0.8533, expected range: -0.4138 0.7427
DRIFTING BUOYS SURFACE PRESSURE (PA) 6401799 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8171, expected range: -1.1275 0.7500
metar
METAR SURFACE PRESSURE (PA) CYLT : out of range
Severe: rms_fgdepar=701.7006, expected range: 0.0000 139.4971
Severe: avg_pge=0.8441, expected range: 0.0000 0.0000
METAR SURFACE PRESSURE (PA) UBBY : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=332.5170, expected range: 5.5022 82.4980
snow
AUTOMATIC LAND SYNOP SNOW (CM) 71250 : out of range
Severe: rms_fgdepar=57.3239, expected range: 0.0000 25.5547
AUTOMATIC LAND SYNOP SNOW (CM) 71758 : out of range
Severe: rms_fgdepar=51.6845, expected range: 18.6012 35.6121
t2m
MANUAL LAND SYNOP 2M TEMPERATURE (K) 24076 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8180, expected range: 0.5961 0.9207
MANUAL LAND SYNOP 2M TEMPERATURE (K) 44218 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8160, expected range: 0.5525 0.8397
LAND TEMP 2M TEMPERATURE (K) 30372 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8586, expected range: 0.5051 1.1000
BUFR LAND SYNOP 2M TEMPERATURE (K) 51542 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8596, expected range: 0.5732 1.0285
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02890 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.8186, expected range: 0.0000 5.6131
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 01082 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=16.4428, expected range: 0.0000 4.7009
Severe: avg_est_pge=0.8253, expected range: -0.1686 0.2995
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 01084 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=13.3922, expected range: 0.0000 3.8735
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02835 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=13.5769, expected range: 0.0000 4.5805
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 01065 : out of range
Severe: rms_fgdepar=14.3541, expected range: 0.0000 8.1990
Severe: avg_est_pge=0.8011, expected range: -0.3032 0.6620
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02858 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.8558, expected range: 0.0000 5.0996
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02888 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=11.7581, expected range: 0.0000 5.9059
MANUAL LAND SYNOP 2M TEMPERATURE (K) 24790 : out of range
Severe: avg_est_pge=0.8255, expected range: -0.0440 1.0565
MANUAL LAND SYNOP 2M TEMPERATURE (K) 24951 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.1610, expected range: 0.0000 4.4898
MANUAL LAND SYNOP 2M TEMPERATURE (K) 30372 : out of range
2 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8247, expected range: 0.0652 1.1542
MANUAL LAND SYNOP 2M TEMPERATURE (K) 44203 : out of range
3 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8054, expected range: 0.6591 0.8533
MANUAL LAND SYNOP 2M TEMPERATURE (K) 22213 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.9812, expected range: 0.0000 3.2247
MANUAL LAND SYNOP 2M TEMPERATURE (K) 22583 : out of range
Severe: rms_fgdepar=12.8381, expected range: 0.0000 3.2809
MANUAL LAND SYNOP 2M TEMPERATURE (K) 01065 : out of range
Severe: rms_fgdepar=14.1136, expected range: 0.0000 7.1651
MANUAL LAND SYNOP 2M TEMPERATURE (K) 25627 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8277, expected range: -0.4388 1.2911
MANUAL LAND SYNOP 2M TEMPERATURE (K) 24477 : out of range
4 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8379, expected range: 0.6462 0.8443
MANUAL LAND SYNOP 2M TEMPERATURE (K) 25428 : out of range
Severe: rms_fgdepar=10.2566, expected range: 0.0000 4.1163
MANUAL LAND SYNOP 2M TEMPERATURE (K) 83179 : out of range
Severe: rms_fgdepar=10.8224, expected range: 0.0000 1.2209
MANUAL LAND SYNOP 2M TEMPERATURE (K) 32389 : out of range
Severe: rms_fgdepar=10.1148, expected range: 0.0000 3.8677
METAR 2M TEMPERATURE (K) LTCO : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8067, expected range: 0.0126 1.0231
BUFR LAND SYNOP 2M TEMPERATURE (K) 02805 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.2080, expected range: 0.0000 4.6937
BUFR LAND SYNOP 2M TEMPERATURE (K) 01065 : out of range
Severe: rms_fgdepar=14.3776, expected range: 0.0000 8.1327
Severe: avg_est_pge=0.8017, expected range: -0.3117 0.6586