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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-10-01 12:00

atms
NPP ATMS RADIANCES CHANNEL 12 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2571, expected range: -0.2092 -0.1591
NOAA20 ATMS RADIANCES CHANNEL 12 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.3561, expected range: -0.3168 -0.3007
ssmis
DMSP-17 SSMIS RADIANCES CHANNEL 17 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-2.5759, expected range: -2.9144 -2.8491
DMSP-18 SSMIS RADIANCES CHANNEL 5 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.4029, expected range: 0.8562 1.3373
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1-2 (HPA) : out of range
23 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-0.0139, expected range: -0.0078 -0.0032
Severely_persistent: stdev_fgdepar=0.0158, expected range: 0.0013 0.0090
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1010-1011 (HPA) : out of range
15 times in the last 10 days for at least one item
Slight: avg_fgdepar=-3.8747, expected range: -3.3301 -3.3301
Radiosondes
All HIGH RESO SEA TEMP ALL LAYERS Tropics : all data missing
Severely_persistent: obs_number=0, expected range: 11.23 382.96
All HIGH RESO SEA TEMP ALL LAYERS South Atlantic : all data missing
Severely_persistent: obs_number=0, expected range: 147.10 173.40
All BUFR TEMP DESCENT ALL LAYERS Tropics : all data missing
Severely_persistent: obs_number=0, expected range: 81.09 101.91
All BUFR TEMP DESCENT ALL LAYERS South Atlantic : all data missing
Severely_persistent: obs_number=0, expected range: 81.09 101.91
LAND TEMP TEMPERATURE (K) 47122 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=7.6396, expected range: 0.7047 4.1177
LAND TEMP WIND VECTOR DIFF (M/S) 26781 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.4151, expected range: 0.0000 7.8936
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=91.0000, expected range: 172.9198 182.8302
Severe: obs_number=92.0000, expected range: 156.6429 169.1071
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (2 pressure layers affected : out of range
Severe: obs_number=276.0000, expected range: 178.6863 190.5637
HIGH RESO LAND TEMP Q (G/KG) 54161 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.9297, expected range: 0.0000 1.4653
HIGH RESO LAND TEMP Q (G/KG) 58606 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=4.1105, expected range: 0.0000 2.1242
HIGH RESO LAND TEMP Q (G/KG) 72426 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.0179, expected range: 0.0000 1.5954
BUFR TEMP DESCENT Q (G/KG) PRESSURE LAYER 300-600 (HPA) : out of range
Slight: obs_number=596.0000, expected range: 1033.4492 1691.8008
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU1722 PRESSURE LAYER 0-300 (HPA) : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=21.1602, expected range: -18.4879 46.8115
Severely_persistent: rms_fgdepar=23.7688, expected range: 0.0000 51.4811
WIGOS AMDAR TEMPERATURE (K) CNNKXR PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_pge=0.8015, expected range: 0.4977 0.7500
WIGOS AMDAR TEMPERATURE (K) BOCUILJA PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=7.9417, expected range: 0.0000 0.9141
WIGOS AMDAR TEMPERATURE (K) CNLSLP PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_fgdepar=-10.6680, expected range: -17.6306 -1.3266
Severe: rms_fgdepar=10.9810, expected range: 1.8037 17.3261
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU0528 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=34.7468, expected range: -0.4871 5.0777
Severe: rms_fgdepar=37.9298, expected range: 0.0000 6.2054
Severe: avg_pge=0.8968, expected range: -0.3909 0.4621
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU0660 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=15.4514, expected range: 0.0000 7.7546
WIGOS AMDAR WIND VECTOR DIFF (M/S) JPPXLDRA PRESSURE LAYER 300-600 (HP : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=16.0934, expected range: 0.0000 7.3733
WIGOS AMDAR WIND VECTOR DIFF (M/S) H0BSEJZA PRESSURE LAYER 300-600 (HP : out of range
Severe: rms_fgdepar=17.3754, expected range: 0.0000 7.7452
WIGOS AMDAR WIND VECTOR DIFF (M/S) IGUSPDZA PRESSURE LAYER 600-900 (HP : out of range
Severe: avg_fgdepar=22.6730, expected range: -2.5195 7.7437
Severe: rms_fgdepar=22.6730, expected range: 0.0000 8.5843
Severe: avg_pge=0.8300, expected range: -0.8083 0.7500
ADS-C WIND VECTOR DIFF (M/S) CA0UDQBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=28.7340, expected range: -3.2278 10.2818
Severe: rms_fgdepar=28.7340, expected range: 0.0000 14.0511
airep
AIREP WIND VECTOR DIFF (M/S) UAL885 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=18.9355, expected range: 0.0000 10.5357
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : missing
7 times in the last 10 days for at least one item
Severely_persistent: obs_number=0.0000, expected range: 0.0000 1049.1673
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 68392 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-830.0103, expected range: -1061.8949 744.3090
Severely_persistent: rms_fgdepar=831.9680, expected range: 0.0000 843.3180
Severely_persistent: avg_pge=0.9421, expected range: -0.5925 0.7500
MANUAL LAND SYNOP RH2M (%) 66285 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9737, expected range: -0.7348 0.7500
MANUAL LAND SYNOP RH2M (%) 67229 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=50.1147, expected range: -12.8985 96.0396
Severely_persistent: rms_fgdepar=50.2479, expected range: 0.0000 95.1987
BUFR LAND SYNOP RH2M (%) 34394 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9996, expected range: -1.9615 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=1.0000, expected range: -1.3516 0.7500
MANUAL LAND SYNOP RH2M (%) 42176 : out of range
Severe: avg_pge=0.8716, expected range: -1.0828 0.7500
MANUAL LAND SYNOP RH2M (%) 43017 : out of range
Severe: rms_fgdepar=34.0867, expected range: 0.0000 32.3743
Severe: avg_pge=0.8562, expected range: -0.0422 0.0567
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 68192 : out of range
Severe: rms_fgdepar=313.4277, expected range: 0.0000 155.8379
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 63688 : out of range
Severe: rms_fgdepar=308.1423, expected range: 0.0000 126.1634
BUFR LAND SYNOP RH2M (%) 71167 : out of range
Severe: avg_fgdepar=50.0076, expected range: -7.7164 22.2178
Severe: rms_fgdepar=50.0076, expected range: 0.3920 22.0348
Severe: avg_pge=0.9719, expected range: -0.0047 0.0137
BUFR LAND SYNOP RH2M (%) 34887 : out of range
Severe: rms_fgdepar=36.3539, expected range: 0.0000 15.5113
BUFR LAND SYNOP RH2M (%) 72508 : out of range
Severe: rms_fgdepar=40.8177, expected range: 0.0000 14.5197
BUFR LAND SYNOP RH2M (%) : out of range
Severe: obs_number=127.0000, expected range: 229.2559 237.1441
BUFR LAND SYNOP SURFACE PRESSURE (PA) 36819 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=308.9330, expected range: 0.0000 133.3419
BUFR LAND SYNOP SURFACE PRESSURE (PA) 22939 : out of range
Severe: rms_fgdepar=427.3783, expected range: 0.0000 76.8774
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) KIAB : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=807.4824, expected range: 573.9372 755.8296
Severely_persistent: rms_fgdepar=807.4824, expected range: 573.9609 755.8770
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9HA4638 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=21.8354, expected range: -5.7687 18.3768
Severe: rms_fgdepar=21.8354, expected range: 0.0000 18.6178
Severe: avg_pge=0.9066, expected range: -0.2004 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7AU2 : out of range
Severe: avg_fgdepar=-529.5572, expected range: -1002.5799 1200.9680
Severe: rms_fgdepar=551.5319, expected range: 0.0000 990.8582
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V3143 : out of range
Severe: avg_fgdepar=1267.2972, expected range: 939.3433 1804.9626
Severe: rms_fgdepar=1267.8297, expected range: 938.8394 1807.7526
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRRZ8 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8217, expected range: -1.4565 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 7JQF : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-553.4313, expected range: -1011.4223 123.9208
Severe: rms_fgdepar=553.4313, expected range: 0.0000 1011.4223
Severe: avg_pge=0.8434, expected range: 0.3070 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) KCOJ : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=384.5403, expected range: 0.0000 115.7435
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 5401581 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8540, expected range: -1.0136 0.7500
MOORED BUOYS WIND VECTOR DIFF (M/S) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=139.0000, expected range: 119.3182 122.4712
All MOORED BUOYS WMO BLOCK 22 : all data missing
Severe: obs_number=0, expected range: 79.22 194.90
DRIFTING BUOYS SURFACE PRESSURE (PA) 6203613 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=439.0722, expected range: 0.0000 225.0475
Severe: avg_pge=0.8122, expected range: -0.3155 0.4260
DRIFTING BUOYS SURFACE PRESSURE (PA) 4602524 : out of range
Severe: rms_fgdepar=411.7941, expected range: 0.0000 173.2075
DRIFTING BUOYS SURFACE PRESSURE (PA) 5401536 : out of range
Severe: rms_fgdepar=308.0076, expected range: 0.0000 54.1518
metar
AUTOMATIC METAR SURFACE PRESSURE (PA) LIRK : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-854.3029, expected range: -538.3578 818.7429
Severely_persistent: rms_fgdepar=858.3545, expected range: 0.0000 718.2983
Severely_persistent: avg_pge=0.8454, expected range: -1.0162 0.7500
AUTOMATIC METAR SURFACE PRESSURE (PA) HTKB : out of range
Severe: avg_fgdepar=-736.6970, expected range: -695.2435 645.3547
Severe: rms_fgdepar=739.2811, expected range: 0.0000 466.3282
Severe: avg_pge=0.8315, expected range: -0.8302 0.7500
snow
BUFR LAND SYNOP SNOW (CM) _MF1EB15 : out of range
36 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-783.1601, expected range: -791.1626 -766.1200
BUFR LAND SYNOP SNOW (CM) _MF1EB15 : out of range
36 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=783.1642, expected range: 766.3765 791.0016
t2m
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13804 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-15.9126, expected range: -49.3802 38.3211
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13804 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=15.9302, expected range: 6.7467 25.1832
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-16.0704, expected range: -20.3874 -6.3922
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=16.1786, expected range: 6.3753 20.4757
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-12.6615, expected range: -17.2573 -5.4396
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=12.7438, expected range: 5.4137 17.4023
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI1D122 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=15.4184, expected range: -2.6276 2.0101
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI1D122 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=15.6069, expected range: 0.0000 5.3078
BUFR LAND SYNOP 2M TEMPERATURE (K) 68387 : out of range
Severe: avg_fgdepar=-13.0974, expected range: -3.4427 2.7591
Severe: rms_fgdepar=13.0974, expected range: 0.0000 3.1668