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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-08-08 12:00

amsua
NOAA 19 AMSUA ALL SKY RADIANCES CHANNEL 8 : out of range
2 times in the last 10 days for at least one item
Severe: avg_biascorr=0.1139, expected range: -0.6368 -0.2586
cris
All NPP CRIS ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 14961.12 15882.11
atms
All NPP ATMS ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 11507.80 13938.98
gpsro
SENTINEL-6A GPSRO RISING HEIGHT 6-8 KM : out of range
Severe: stdev_norm_fgdepar=0.7157, expected range: 0.0435 0.3485
COSMIC2-E1 GPSRO RISING (24 impact heights affected) : out of range
Slight: obs_number=1097.0000, expected range: 1529.3539 2599.7050
COSMIC2-E4 GPSRO SETTING (23 impact heights affected) : out of range
Slight: obs_number=1987.0000, expected range: 2512.2604 4479.5043
Atmospheric Motion Vector
All AQUA MODIS CLEAR WV ALL LAYERS Global : all data missing
Severely_persistent: obs_number=0, expected range: 102.15 1108.46
All NPP VIIRS AMV IR ALL LAYERS Global : all data missing
Severely_persistent: obs_number=0, expected range: 136.73 1436.89
Radiosondes
LAND TEMP Q (G/KG) 35700 PRESSURE LAYER 900-1200 (HPA) : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=8.3329, expected range: 1.2867 10.0421
Severely_persistent: rms_fgdepar=8.4600, expected range: 1.4993 10.0739
LAND TEMP Q (G/KG) 97980 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.3599, expected range: 0.1087 0.5560
LAND TEMP Q (G/KG) 40582 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.6795, expected range: 0.0000 10.0969
LAND TEMP WIND VECTOR DIFF (M/S) 31977 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_fgdepar=23.5975, expected range: -1.4996 6.5452
Severe: avg_pge=0.8906, expected range: -0.2444 0.3468
LAND TEMP WIND VECTOR DIFF (M/S) 31977 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=23.5975, expected range: 0.0000 6.8981
All LAND TEMP ALL LAYERS WMO BLOCK 98 : all data missing
Severe: obs_number=0, expected range: 128.79 319.71
HIGH RESO LAND TEMP Q (G/KG) 27459 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.3890, expected range: 0.0150 1.8138
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 76 : all data missing
Severe: obs_number=0, expected range: 92.15 655.03
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 83 : all data missing
Severe: obs_number=0, expected range: 48.95 126.55
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Considerable: rms_fgdepar=1.4565, expected range: 0.2589 0.9909
HIGH RESO SEA TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
Slight: rms_fgdepar=1.2850, expected range: 0.3857 1.2625
amdar
WIGOS AMDAR TEMPERATURE (K) XKFGUURA PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_fgdepar=-13.2479, expected range: -1.6800 0.9317
Severe: avg_pge=0.9166, expected range: -0.1920 0.2427
ADS-C WIND VECTOR DIFF (M/S) EHDRETBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=30.7601, expected range: -1.9920 9.8595
Severe: rms_fgdepar=42.7101, expected range: 0.0000 17.5834
synop
AUTOMATIC LAND SYNOP RH2M (%) 18156 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9480, expected range: -1.3496 0.7500
MANUAL LAND SYNOP RH2M (%) 62120 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8875, expected range: -1.4839 0.7500
MANUAL LAND SYNOP RH2M (%) 42071 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9388, expected range: -0.0768 0.1013
MANUAL LAND SYNOP RH2M (%) 83097 : out of range
Severe: rms_fgdepar=40.1718, expected range: 7.1639 30.1938
Severe: avg_pge=0.8805, expected range: -0.0734 0.1183
MANUAL LAND SYNOP RH2M (%) 43348 : out of range
Severe: rms_fgdepar=31.0091, expected range: 0.0000 12.5136
Severe: avg_pge=0.8124, expected range: 0.0002 0.0057
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 41571 : out of range
Severe: rms_fgdepar=488.1454, expected range: 0.0000 277.0015
Severe: avg_pge=0.8841, expected range: -0.6754 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83998 : out of range
Severe: avg_fgdepar=-550.9257, expected range: -225.3096 120.7569
Severe: rms_fgdepar=799.7104, expected range: 0.0000 224.0619
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83589 : out of range
Severe: avg_fgdepar=583.7407, expected range: -376.9558 710.4189
Severe: rms_fgdepar=583.7407, expected range: 0.0000 508.4577
Severe: avg_pge=0.8780, expected range: 0.0314 0.7500
BUFR LAND SYNOP RH2M (%) 34373 : out of range
Severe: rms_fgdepar=30.9953, expected range: 0.0000 10.4726
BUFR LAND SYNOP RH2M (%) 86814 : out of range
Severe: rms_fgdepar=39.7802, expected range: 0.0000 11.2313
BUFR LAND SYNOP RH2M (%) 44336 : out of range
Severe: avg_fgdepar=51.1759, expected range: -16.7980 13.4982
Severe: rms_fgdepar=51.1759, expected range: 0.0000 11.6770
BUFR LAND SYNOP SURFACE PRESSURE (PA) 38141 : out of range
Severe: rms_fgdepar=550.3130, expected range: 0.0000 322.8614
BUFR LAND SYNOP SURFACE PRESSURE (PA) 30673 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-565.0642, expected range: -339.9714 351.4651
Severe: rms_fgdepar=565.5578, expected range: 0.0000 186.0844
Severe: avg_pge=0.8897, expected range: -0.4905 0.6363
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48064 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8491, expected range: -0.1292 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48074 : out of range
Severe: rms_fgdepar=424.5053, expected range: 0.0000 357.0227
Severe: avg_pge=0.8743, expected range: -1.1787 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24684 : out of range
Severe: rms_fgdepar=584.4405, expected range: 0.0000 133.9631
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41989 : out of range
Severe: rms_fgdepar=508.3680, expected range: 0.0000 246.5696
ship
SHIP SURFACE PRESSURE (PA) WTEK : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8601, expected range: -1.2168 0.7500
ABBREVIATED SHIP SURFACE PRESSURE (PA) WTEK : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8272, expected range: -0.9184 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) ELDMMXN : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8256, expected range: -1.0356 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) YBBQ2 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=613.6621, expected range: -52.2748 1156.7947
Severely_persistent: rms_fgdepar=613.6621, expected range: 172.3251 985.1029
Severely_persistent: avg_pge=0.8366, expected range: -0.9181 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) A8PQ4 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=828.7796, expected range: -675.5056 1397.1543
Severely_persistent: rms_fgdepar=828.7796, expected range: 0.0000 1392.2925
Severely_persistent: avg_pge=0.8802, expected range: -0.7005 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) D5VT5 : out of range
33 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=824.5518, expected range: -572.9866 2005.2653
Severely_persistent: rms_fgdepar=824.5518, expected range: 0.0000 1855.1440
Severely_persistent: avg_pge=0.8728, expected range: -0.5109 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7ZZ6 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=521.2903, expected range: -1957.0449 1465.5263
Severely_persistent: rms_fgdepar=570.9412, expected range: -1410.9098 2030.5282
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6NR7 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=678.2484, expected range: -1376.3309 1551.0634
Severely_persistent: rms_fgdepar=680.7123, expected range: -1057.7508 1421.5397
Severely_persistent: avg_pge=0.9075, expected range: -1.3540 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9VKU8 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=960.3087, expected range: 712.0974 1212.8875
Severely_persistent: rms_fgdepar=960.3087, expected range: 713.4875 1212.2216
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRNU9 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=1182.0173, expected range: 908.2882 1434.3991
Severely_persistent: rms_fgdepar=1182.4884, expected range: 908.8974 1434.1866
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 7JAA : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=592.7573, expected range: -1232.6587 828.7293
Severely_persistent: rms_fgdepar=592.7573, expected range: 0.0000 1311.8206
Severely_persistent: avg_pge=0.8218, expected range: -1.4956 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WDL2611 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=424.1769, expected range: 0.0000 182.8900
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VROW3 : out of range
Severe: avg_fgdepar=660.8074, expected range: 369.9059 903.9942
Severe: rms_fgdepar=660.8074, expected range: 369.9059 903.9942
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V3735 : out of range
Severe: avg_fgdepar=1196.7964, expected range: 37.2347 2018.3273
Severe: rms_fgdepar=1196.7964, expected range: 36.5802 2019.2262
BUFR SHIP SYNOP SURFACE PRESSURE (PA) TBWUK47 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=331.3017, expected range: 0.0000 107.3094
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WDE3569 : out of range
Severe: rms_fgdepar=387.0997, expected range: 0.0000 196.4855
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VEAB : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-760.5436, expected range: -1321.4209 -440.9432
Severe: rms_fgdepar=760.5436, expected range: 440.9432 1321.4209
AUTOMATIC SHIP SURFACE PRESSURE (PA) : out of range
Considerable: obs_number=704.0000, expected range: 809.2702 832.8474
buoy
DRIBU WIND VECTOR DIFF (M/S) 23451 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9120, expected range: 0.1390 0.7500
DRIBU WIND VECTOR DIFF (M/S) 23454 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8557, expected range: -0.5988 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4602500 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-533.4864, expected range: -970.4897 747.3866
Severely_persistent: rms_fgdepar=558.0215, expected range: 0.0000 1050.5499
Severely_persistent: avg_pge=0.8652, expected range: -1.5345 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1501741 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-706.1240, expected range: -1625.2275 1635.4754
Severely_persistent: rms_fgdepar=707.4805, expected range: 0.0000 1074.2079
Severely_persistent: avg_pge=0.9210, expected range: 0.1504 0.7500
metar
METAR SURFACE PRESSURE (PA) SBCH : out of range
Severe: rms_fgdepar=329.6754, expected range: 0.0000 130.0686
METAR SURFACE PRESSURE (PA) FNMO : out of range
Severe: rms_fgdepar=384.1198, expected range: 0.0000 214.7163
snow
MANUAL LAND SYNOP SNOW (CM) 87803 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-53.0723, expected range: -73.9168 -57.1676
Severely_persistent: rms_fgdepar=53.0723, expected range: 57.1676 73.9168
BUFR LAND SYNOP SNOW (CM) 87803 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-53.0723, expected range: -74.2928 -56.4595
Severely_persistent: rms_fgdepar=53.0723, expected range: 56.4595 74.2928
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=-772.4732, expected range: -773.7065 -772.0073
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=772.4735, expected range: 772.0074 773.7065
BUFR LAND SYNOP SNOW (CM) _MI1F9AC : out of range
Severe: avg_fgdepar=51.7059, expected range: 37.1417 50.6257
BUFR LAND SYNOP SNOW (CM) _MI1F9AC : out of range
Severe: rms_fgdepar=53.2447, expected range: 38.1568 51.4924
t2m
METAR 2M TEMPERATURE (K) UGMS : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=13.2294, expected range: 8.3502 15.6858
Severely_persistent: rms_fgdepar=13.2957, expected range: 8.6233 15.6399
METAR 2M TEMPERATURE (K) OIGK : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-12.3807, expected range: -14.1492 -4.7865
Severe: rms_fgdepar=12.6205, expected range: 5.8085 13.9324
METAR 2M TEMPERATURE (K) KMUO : out of range
Severe: rms_fgdepar=10.9924, expected range: 0.0538 4.5523
rh2m
All BUFR LAND SYNOP WMO BLOCK 98 : all data missing
Severe: obs_number=0, expected range: 125.91 134.93