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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-08-06 00:00

cris
All NPP CRIS ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 14938.83 15902.54
atms
All NPP ATMS ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 11435.34 14046.20
Atmospheric Motion Vector
All AQUA MODIS CLEAR WV ALL LAYERS Global : all data missing
Severely_persistent: obs_number=0, expected range: 66.57 1138.60
All NPP VIIRS AMV IR ALL LAYERS Global : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 1577.61
Radiosondes
LAND TEMP WIND VECTOR DIFF (M/S) 42701 PRESSURE LAYER 0-300 (HPA) : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=23.5223, expected range: -13.9855 45.0338
Severely_persistent: rms_fgdepar=24.1014, expected range: 0.0000 48.2346
All HIGH RESO SEA TEMP ALL LAYERS North West Pacific : all data missing
Severely_persistent: obs_number=0, expected range: 95.84 134.96
HIGH RESO LAND TEMP Q (G/KG) 94995 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.3362, expected range: 0.0000 1.7052
All HIGH RESO LAND TEMP ALL LAYERS South pole : all data missing
Severe: obs_number=0, expected range: 68.42 375.28
HIGH RESO LAND TEMP Q (G/KG) (2 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=259.0000, expected range: 167.1359 184.8641
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 900-1200 (HPA) : out of range
Considerable: avg_fgdepar=1.7673, expected range: 0.4181 1.2790
HIGH RESO SEA TEMP TEMPERATURE (K) (4 pressure layers affected) : out of range
Considerable: obs_number=198.0000, expected range: 107.8532 127.3468
amdar
All TAMDAR ALL LAYERS Alantic Tropical are : all data missing
Severe: obs_number=0, expected range: 0.00 253.88
WIGOS AMDAR TEMPERATURE (K) EU4172 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=8.0410, expected range: 0.0000 1.8882
Severe: avg_pge=0.8688, expected range: -0.1480 0.1975
ADS-C WIND VECTOR DIFF (M/S) EFDVVOJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.3198, expected range: 0.0000 8.4790
airep
AIREP WIND VECTOR DIFF (M/S) LOT4EH PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.3701, expected range: 0.0000 8.7534
AIREP WIND VECTOR DIFF (M/S) VIR20V PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.9114, expected range: 0.0000 8.3876
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 42701 PRESSURE LAYER 0-300 (HPA) : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=23.7255, expected range: -21.4303 58.0438
Severely_persistent: rms_fgdepar=24.0134, expected range: 0.0000 61.2901
Severely_persistent: avg_pge=0.8128, expected range: -1.0018 0.7500
All BUFR LAND PILOT ALL LAYERS North West Pacific : all data missing
Severe: obs_number=0, expected range: 27.96 168.39
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 63533 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8584, expected range: -1.4740 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 68593 : out of range
Severe: avg_fgdepar=-52.3854, expected range: -40.5019 13.2506
Severe: rms_fgdepar=52.3854, expected range: 0.0000 41.6969
Severe: avg_pge=0.9939, expected range: -0.0293 0.0471
AUTOMATIC LAND SYNOP RH2M (%) 18156 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-51.5118, expected range: -88.0004 61.1488
Severe: rms_fgdepar=51.5725, expected range: 0.0000 67.3574
Severe: avg_pge=1.0000, expected range: -0.9285 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 87374 : out of range
Severe: rms_fgdepar=502.4028, expected range: 0.0000 133.5515
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40007 : out of range
Severe: avg_pge=0.8225, expected range: -0.9865 0.7500
MANUAL LAND SYNOP RH2M (%) 60563 : out of range
Severe: rms_fgdepar=31.4436, expected range: 0.0000 8.2067
BUFR LAND SYNOP Z (M) 43356 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=115.6630, expected range: 0.0000 41.9361
BUFR LAND SYNOP SURFACE PRESSURE (PA) 27760 : out of range
Severe: rms_fgdepar=499.2208, expected range: 0.0000 183.3673
BUFR LAND SYNOP SURFACE PRESSURE (PA) 29974 : out of range
Severe: rms_fgdepar=568.1950, expected range: 15.9960 155.5796
BUFR LAND SYNOP SURFACE PRESSURE (PA) 93498 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=411.2092, expected range: 0.0000 405.3427
Severe: avg_pge=0.8694, expected range: -1.2437 0.7500
BUFR LAND SYNOP RH2M (%) 36744 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=34.3473, expected range: 0.0000 19.2808
BUFR LAND SYNOP RH2M (%) 71747 : out of range
Severe: rms_fgdepar=30.1302, expected range: 0.0000 16.5617
BUFR LAND SYNOP RH2M (%) 34887 : out of range
Severe: rms_fgdepar=31.3198, expected range: 0.0000 10.0073
BUFR LAND SYNOP RH2M (%) 52378 : out of range
Severe: rms_fgdepar=33.5862, expected range: 0.0000 16.9941
ship
SHIP SURFACE PRESSURE (PA) WTEK : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-623.9964, expected range: -872.0347 641.2303
Severely_persistent: rms_fgdepar=625.0670, expected range: 0.0000 689.5813
Severely_persistent: avg_pge=0.8946, expected range: -1.2029 0.7500
ABBREVIATED SHIP SURFACE PRESSURE (PA) WTEK : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-591.0990, expected range: -904.7387 699.6789
Severely_persistent: rms_fgdepar=594.4282, expected range: 0.0000 649.3785
Severely_persistent: avg_pge=0.8907, expected range: -0.7961 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OXFU2 : out of range
26 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=547.7548, expected range: 290.6981 750.1057
Severely_persistent: rms_fgdepar=548.7180, expected range: 290.3286 750.9770
BUFR SHIP SYNOP SURFACE PRESSURE (PA) D5VT5 : out of range
25 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=986.7360, expected range: -1047.7038 2272.0777
Severely_persistent: rms_fgdepar=986.7360, expected range: 0.0000 2099.7624
Severely_persistent: avg_pge=0.8963, expected range: -0.6853 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) PJWM : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=664.8311, expected range: 111.5502 1209.0163
Severely_persistent: rms_fgdepar=664.8311, expected range: 111.5502 1209.0163
BUFR SHIP SYNOP SURFACE PRESSURE (PA) TBWUK51 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=622.3539, expected range: -433.8503 562.2964
Severe: rms_fgdepar=622.3539, expected range: 0.0000 422.4700
Severe: avg_pge=0.8309, expected range: -0.9784 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) A8PQ4 : out of range
Severe: avg_fgdepar=589.1631, expected range: -406.6132 876.0171
Severe: rms_fgdepar=589.1631, expected range: 0.0000 820.4988
Severe: avg_pge=0.8169, expected range: -0.6729 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7ZZ6 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-689.8357, expected range: -1106.5144 844.1214
Severe: rms_fgdepar=932.9980, expected range: 0.0000 992.1574
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6NR7 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=507.8195, expected range: 0.0000 131.8229
Severe: avg_pge=0.8828, expected range: -0.4118 0.6173
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HRJ9 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=368.2665, expected range: 0.0000 131.4886
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3FAZ9 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=514.6298, expected range: -846.9550 1046.0607
Severe: rms_fgdepar=514.6298, expected range: 0.0000 902.8284
BUFR SHIP SYNOP SURFACE PRESSURE (PA) NEPP : out of range
Severe: avg_fgdepar=679.2378, expected range: -189.4387 187.3595
Severe: rms_fgdepar=679.2378, expected range: 0.0000 142.5838
Severe: avg_pge=0.8519, expected range: -0.3357 0.3723
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 7KKU : out of range
Severe: rms_fgdepar=494.1892, expected range: 195.8525 427.1373
Severe: avg_pge=0.8077, expected range: -0.2059 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) ZCEF2 : out of range
Severe: rms_fgdepar=16.8523, expected range: 0.0000 5.7032
Severe: avg_pge=0.8894, expected range: -0.9473 0.7500
buoy
DRIBU WIND VECTOR DIFF (M/S) 23451 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8767, expected range: 0.1346 0.7500
DRIBU WIND VECTOR DIFF (M/S) 23454 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8922, expected range: -0.6674 0.7500
snow
MANUAL LAND SYNOP SNOW (CM) 37552 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=64.0000, expected range: 11.0891 81.9776
Severely_persistent: rms_fgdepar=64.0000, expected range: 12.7793 82.9315
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=-772.7459, expected range: -773.7383 -771.9876
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=772.7460, expected range: 771.9878 773.7383
t2m
METAR 2M TEMPERATURE (K) KLNS : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.4780, expected range: 0.4819 4.2736
All BUFR LAND SYNOP WMO BLOCK 66 : all data missing
Severe: obs_number=0, expected range: 68.88 146.49