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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2021-09-21 00:00

gpsro
METOP-A GRAS SETTING HEIGHT 2-4 KM : out of range
7 times in the last 10 days for at least one item
Slight: avg_norm_fgdepar=-0.1311, expected range: 0.1219 1.0347
Atmospheric Motion Vector
METEOSAT-8 AMV IR3 WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : out of range
Considerable: obs_number=1358.0000, expected range: 722.0865 1130.1635
HIMAWARI-8 AMV VIS1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 600-900 (HPA : out of range
Considerable: avg_fgdepar=2.3645, expected range: 1.9794 2.1729
GOES-16 AMV IR1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : out of range
Considerable: stdev_fgdepar=2.3655, expected range: 1.8729 2.1338
Radiosondes
LAND TEMP Q (G/KG) 83928 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.7793, expected range: 0.2863 1.4844
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 59211 PRESSURE LAYER 0-300 : out of range
Severe: rms_fgdepar=15.1514, expected range: 1.8610 3.7347
HIGH RESO LAND TEMP TEMPERATURE (K) 47155 (3 pressure layers affected) : out of range
Severe: rms_fgdepar=8.0305, expected range: 0.2791 1.5299
HIGH RESO LAND TEMP TEMPERATURE (K) 47155 (2 pressure layers affected) : out of range
Severe: avg_pge=0.8033, expected range: -0.0379 0.0490
HIGH RESO LAND TEMP TEMPERATURE (K) 52267 PRESSURE LAYER 900-1200 (HPA : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8257, expected range: -0.8095 0.7500
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 37 : all data missing
Severe: obs_number=0, expected range: 88.96 98.44
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 40 : all data missing
Severe: obs_number=0, expected range: 89.92 96.33
amdar
WIGOS AMDAR Q (G/KG) WWJWUUJA PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=5.3812, expected range: 0.0798 1.8696
ADS-C WIND VECTOR DIFF (M/S) 03PJXUBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=28.2262, expected range: 0.0000 10.1568
ADS-C WIND VECTOR DIFF (M/S) 1HFRTXBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=22.8357, expected range: 0.0000 10.0426
ADS-C WIND VECTOR DIFF (M/S) LGHEIERA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=26.7791, expected range: 0.0000 9.9942
ADS-C WIND VECTOR DIFF (M/S) PZXLCIRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.1789, expected range: 0.0000 7.2122
ADS-C WIND VECTOR DIFF (M/S) WSDQOORA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=24.0045, expected range: 1.2238 6.9383
ADS-C WIND VECTOR DIFF (M/S) 4RYAPWRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=20.7074, expected range: 0.0000 8.9267
airep
AIREP WIND VECTOR DIFF (M/S) UAL931 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=35.0416, expected range: 0.0000 6.9755
AIREP WIND VECTOR DIFF (M/S) AAL722 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.1089, expected range: 0.0000 8.0205
AIREP WIND VECTOR DIFF (M/S) KLM282 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=34.5164, expected range: 0.0000 8.0046
AIREP WIND VECTOR DIFF (M/S) UAL5 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=20.0138, expected range: 0.0410 8.5908
AIREP WIND VECTOR DIFF (M/S) AAL36 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=28.7290, expected range: 0.0000 12.9248
AIREP WIND VECTOR DIFF (M/S) UAL46 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=24.3798, expected range: 0.5150 7.3651
AIREP WIND VECTOR DIFF (M/S) UAL907 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=20.4123, expected range: 0.0000 11.9167
AIREP WIND VECTOR DIFF (M/S) AAL208 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=25.6500, expected range: 0.0000 8.9167
AIREP WIND VECTOR DIFF (M/S) AAL48 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=35.5519, expected range: 0.6339 7.6779
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : missing
4 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 0.0000 1464.8738
JAPANESE WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : missing
4 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 0.0000 365.4253
Severe: obs_number=0.0000, expected range: 0.0000 365.4253
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 68102 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8010, expected range: -1.6047 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 17847 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=358.7368, expected range: 0.0000 59.6127
Severely_persistent: avg_pge=0.8491, expected range: -1.2196 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 18199 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-800.2025, expected range: -1724.7546 1530.7379
Severely_persistent: rms_fgdepar=800.7821, expected range: 0.0000 810.5353
Severely_persistent: avg_pge=0.9400, expected range: -0.1398 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 86648 : out of range
30 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=855.8521, expected range: 512.6731 912.5971
Severely_persistent: avg_pge=0.9314, expected range: 0.5544 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) _MI11C99 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8636, expected range: 0.5749 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 86210 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8333, expected range: -0.6449 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 94323 : out of range
Severe: avg_fgdepar=1120.6985, expected range: -65.1067 149.0202
Severe: rms_fgdepar=1120.6985, expected range: 0.0000 149.0202
Severe: avg_pge=0.9466, expected range: -0.4277 0.5366
MANUAL LAND SYNOP RH2M (%) 63210 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9978, expected range: -1.5154 0.7500
MANUAL LAND SYNOP RH2M (%) 60780 : out of range
Severe: rms_fgdepar=36.2129, expected range: 0.0000 10.5396
Severe: rms_fgdepar=38.1049, expected range: 0.0000 12.2133
MANUAL LAND SYNOP RH2M (%) 87791 : out of range
Severe: rms_fgdepar=39.7878, expected range: 0.0000 22.6697
MANUAL LAND SYNOP RH2M (%) 76402 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=55.2034, expected range: -53.2176 94.0050
Severe: rms_fgdepar=55.2034, expected range: 0.0000 86.8466
Severe: avg_pge=1.0000, expected range: -2.0151 0.7500
MANUAL LAND SYNOP RH2M (%) 17074 : out of range
Severe: avg_pge=0.9711, expected range: -0.8092 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 04063 : out of range
Severe: rms_fgdepar=316.6862, expected range: 0.0000 146.6766
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41965 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8551, expected range: -1.4776 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 23986 : out of range
Severe: rms_fgdepar=361.9318, expected range: 0.0000 119.3226
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48427 : out of range
Severe: rms_fgdepar=345.8739, expected range: 0.0000 123.8672
Severe: avg_pge=0.8226, expected range: -0.3943 0.5284
BUFR LAND SYNOP SURFACE PRESSURE (PA) 13269 : out of range
Severe: rms_fgdepar=310.1878, expected range: 0.0000 108.5336
BUFR LAND SYNOP RH2M (%) 20982 : out of range
Severe: rms_fgdepar=34.4564, expected range: 0.0000 19.1343
BUFR LAND SYNOP RH2M (%) 41024 : out of range
Severe: avg_pge=0.9959, expected range: -0.1740 0.2088
BUFR LAND SYNOP RH2M (%) 15434 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=33.1055, expected range: 0.0000 17.9569
BUFR LAND SYNOP RH2M (%) 94444 : out of range
Severe: avg_pge=0.9686, expected range: -0.3377 0.4187
BUFR LAND SYNOP RH2M (%) 72564 : out of range
Severe: rms_fgdepar=40.6839, expected range: 0.0000 11.3543
BUFR LAND SYNOP RH2M (%) 71855 : out of range
Severe: avg_fgdepar=56.9399, expected range: -11.5038 51.3020
Severe: rms_fgdepar=56.9399, expected range: 0.0000 51.3020
Severe: avg_pge=0.9991, expected range: -0.8635 0.7500
BUFR LAND SYNOP RH2M (%) 72569 : out of range
Severe: rms_fgdepar=41.1185, expected range: 0.0000 19.2800
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
Considerable: obs_number=320.0000, expected range: 385.1166 499.8834
BUFR LAND SYNOP Z (M) : out of range
Considerable: obs_number=77.0000, expected range: 90.0780 109.6720
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VRQO8 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=21.9275, expected range: -1.8827 27.6787
Severely_persistent: rms_fgdepar=21.9275, expected range: 0.0000 28.2150
Severely_persistent: avg_pge=0.9210, expected range: 0.5207 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6OM7 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=817.4074, expected range: -618.1476 920.7290
Severely_persistent: rms_fgdepar=857.6397, expected range: 0.0000 993.0161
Severely_persistent: avg_pge=0.8602, expected range: -1.2877 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WDJ4838 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=535.8369, expected range: -15.2718 1006.3715
Severely_persistent: rms_fgdepar=535.8369, expected range: 0.0000 1009.0361
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRPF8 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=688.6382, expected range: 0.0000 1717.1937
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) V7PX2 : out of range
Severe: avg_fgdepar=24.1475, expected range: -18.9577 39.0510
Severe: rms_fgdepar=24.1475, expected range: 0.0000 39.0525
Severe: avg_pge=0.9300, expected range: -1.0568 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OZSK2 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=782.5844, expected range: 319.2666 727.8695
Severe: rms_fgdepar=784.7578, expected range: 322.1369 726.4273
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 2300593 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8235, expected range: -1.3384 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5601646 : out of range
Severe: rms_fgdepar=376.2576, expected range: 0.0000 100.7845
metar
AUTOMATIC METAR SURFACE PRESSURE (PA) K9MN : out of range
Severe: rms_fgdepar=457.3805, expected range: 0.0000 112.8801
snow
BUFR LAND SYNOP SNOW (CM) _MI10DB0 : out of range
34 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=51.8837, expected range: 49.1059 66.5731
BUFR LAND SYNOP SNOW (CM) _MI10DB0 : out of range
34 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=52.7925, expected range: 50.3286 66.3447
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89811 : out of range
24 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.7500, expected range: -19.1099 -15.5039
Severely_persistent: rms_fgdepar=13.7527, expected range: 15.5585 19.0992
METAR 2M TEMPERATURE (K) KMSY : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-15.2818, expected range: -17.9393 14.9243
Severely_persistent: rms_fgdepar=15.3031, expected range: 0.0000 17.8518
BUFR LAND SYNOP 2M TEMPERATURE (K) 89811 : out of range
24 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.8957, expected range: -19.2286 -15.4507
Severely_persistent: rms_fgdepar=13.8987, expected range: 15.5082 19.2172
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=-14.1112, expected range: -21.6031 -14.0997
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=14.1118, expected range: 14.1276 21.5969
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI1C94A : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=11.6266, expected range: 0.4409 2.6122
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
Considerable: obs_number=1278.0000, expected range: 1400.8001 1444.6999
Considerable: obs_number=218.0000, expected range: 470.1813 838.6937
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 60780 : out of range
Severe: rms_fgdepar=33.9392, expected range: 0.0000 13.5990
MANUAL LAND SYNOP RH2M (%) 35406 : out of range
Severe: rms_fgdepar=33.3388, expected range: 0.0000 15.3321
BUFR LAND SYNOP RH2M (%) : out of range
Considerable: obs_number=1143.0000, expected range: 1222.7242 1335.0258