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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-11-06 00:00

iasi
METOP-A/IASI RADIANCES CHANNEL 5988 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=0.4844, expected range: 0.2009 0.3865
METOP-A/IASI RADIANCES CHANNEL 5992 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=0.5213, expected range: 0.1816 0.4060
METOP-A/IASI RADIANCES CHANNEL 5994 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=0.5707, expected range: 0.1878 0.4274
cris
NPP/CRIS RADIANCES (172 channels affected) : out of range
Severe: obs_number=16705.0000, expected range: 21423.2419 23308.1792
airs
AQUA/AIRS RADIANCES CHANNEL 375 : missing
2 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 2347.2241 7076.7759
mwhs2
ALLSKY FY-3D/MWHS2 RADIANCES (15 channels affected) : out of range
Slight: obs_number=27014.0000, expected range: 28580.9214 36575.0246
atms
NOAA20/ATMS RADIANCES (7 channels affected) : out of range
Considerable: obs_number=3768.0000, expected range: 3143.0610 3590.1962
Atmospheric Motion Vector
NPP VIIRS/AMV IR WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : out of range
1 times in the last 10 days for at least one item
Slight: obs_number=694.0000, expected range: 1217.6092 3643.5019
Radiosondes
LAND TEMP TEMPERATURE (K) 30372 PRESSURE LAYER 900-1200 (HPA) : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9517, expected range: -1.3568 0.7500
HIGH RESO LAND TEMP TEMPERATURE (K) (4 pressure layers affected) : out of range
8 times in the last 10 days for at least one item
Severely_persistent: obs_number=408.0000, expected range: 219.4373 310.3275
HIGH RESO LAND TEMP TEMPERATURE (K) (3 pressure layers affected) : out of range
7 times in the last 10 days for at least one item
Severely_persistent: obs_number=267.0000, expected range: 94.3378 167.8975
HIGH RESO LAND TEMP Q (G/KG) (2 pressure layers affected) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: obs_number=189.0000, expected range: 85.4614 100.6562
LAND TEMP TEMPERATURE (K) 43192 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=9.4365, expected range: 0.0000 4.5741
LAND TEMP TEMPERATURE (K) 35121 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_pge=0.9463, expected range: -0.4889 0.6773
LAND TEMP WIND VECTOR DIFF (M/S) 35121 (3 pressure layers affected) : out of range
Severe: rms_fgdepar=18.5995, expected range: 0.0000 8.3039
LAND TEMP WIND VECTOR DIFF (M/S) 24507 PRESSURE LAYER 300-600 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=26.3997, expected range: 0.0000 17.7590
LAND TEMP WIND VECTOR DIFF (M/S) 24507 (2 pressure layers affected) : out of range
Severe: avg_pge=0.8393, expected range: -0.6776 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 31977 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=22.1529, expected range: 0.0000 7.2642
Severe: avg_pge=0.8105, expected range: -0.6082 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 20292 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=16.2300, expected range: 0.0000 7.7721
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (4 pressure layers affected : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=408.0000, expected range: 219.4373 310.3275
HIGH RESO LAND TEMP Q (G/KG) (4 pressure layers affected) : out of range
Severe: obs_number=277.0000, expected range: 361.2698 398.1420
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 300-600 (HPA) : out of range
3 times in the last 10 days for at least one item
Considerable: rms_fgdepar=2.2593, expected range: 0.0000 1.4013
synop
BUFR LAND SYNOP SURFACE PRESSURE (PA) 60018 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8327, expected range: 0.6658 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=154.5771, expected range: 50.8866 101.3100
MANUAL LAND SYNOP RH2M (%) 64870 : out of range
Severe: rms_fgdepar=17.7870, expected range: 0.0000 7.9850
MANUAL LAND SYNOP RH2M (%) 67241 : out of range
Severe: rms_fgdepar=35.0710, expected range: 0.0000 12.0141
MANUAL LAND SYNOP RH2M (%) 61091 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9919, expected range: -1.3562 0.7500
MANUAL LAND SYNOP RH2M (%) 40616 : out of range
Severe: avg_pge=0.8515, expected range: -0.0180 0.0313
MANUAL LAND SYNOP RH2M (%) 41697 : out of range
Severe: avg_pge=0.8276, expected range: -1.3678 0.7500
MANUAL LAND SYNOP RH2M (%) 64708 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9626, expected range: -1.0878 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 62011 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=326.0761, expected range: 0.0000 127.7782
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42471 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8379, expected range: -1.1788 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42391 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8326, expected range: -1.3723 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42744 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=317.3932, expected range: 0.0000 276.6397
Severe: avg_pge=0.8319, expected range: -1.1619 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42174 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=499.3675, expected range: 0.0000 244.9171
Severe: avg_pge=0.8877, expected range: -1.0545 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42266 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=377.7011, expected range: 0.0000 200.8571
Severe: avg_pge=0.8485, expected range: -0.9485 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 91317 : out of range
Severe: rms_fgdepar=503.8899, expected range: 0.0000 348.5532
Severe: avg_pge=0.8773, expected range: -1.2845 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83897 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8571, expected range: -0.3705 0.7500
BUFR LAND SYNOP RH2M (%) 94415 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=1.0000, expected range: -1.6795 0.7500
BUFR LAND SYNOP RH2M (%) 26078 : out of range
Severe: rms_fgdepar=28.1170, expected range: 0.0000 15.1766
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71660 : out of range
Severe: rms_fgdepar=472.8009, expected range: 0.0000 332.7177
Severe: avg_pge=0.8790, expected range: -0.6332 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71880 : out of range
Severe: rms_fgdepar=426.0743, expected range: 0.0000 386.9207
Severe: avg_pge=0.8065, expected range: -0.8556 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 08352 : out of range
Severe: rms_fgdepar=781.6113, expected range: 0.0000 233.9810
Severe: avg_pge=0.9474, expected range: -1.1295 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 27083 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=520.7882, expected range: 0.0000 168.9970
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48924 : out of range
Severe: rms_fgdepar=430.5603, expected range: 0.0000 173.8871
Severe: avg_pge=0.8168, expected range: -0.4520 0.5495
BUFR LAND SYNOP SURFACE PRESSURE (PA) 15119 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=301.2912, expected range: 0.0000 123.1263
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94439 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=484.8674, expected range: 0.0000 435.1042
Severe: avg_pge=0.8758, expected range: -1.3584 0.7500
ship
AUTOMATIC SHIP SURFACE PRESSURE (PA) SDIA : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8436, expected range: -1.2097 0.7500
SHIP SURFACE PRESSURE (PA) 9HA4800 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8731, expected range: -1.0980 0.7500
SHIP WIND VECTOR DIFF (M/S) PBGJ : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8593, expected range: 0.3457 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) LF4J : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8540, expected range: 0.5257 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) 45173 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=686.0305, expected range: 0.0000 350.8099
Severe: avg_pge=0.8841, expected range: -0.7775 0.7500
SHIP SURFACE PRESSURE (PA) 9V9791 : out of range
Severe: rms_fgdepar=970.5053, expected range: 0.0000 472.8061
Severe: avg_pge=0.9279, expected range: -0.5867 0.7500
SHIP SURFACE PRESSURE (PA) OUJN2 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8588, expected range: 0.2107 0.7500
SHIP SURFACE PRESSURE (PA) ELZU2 : out of range
Severe: avg_pge=0.8489, expected range: -1.0259 0.7500
SHIP SURFACE PRESSURE (PA) MABI4 : out of range
Severe: avg_pge=0.8393, expected range: -1.1108 0.7500
SHIP SURFACE PRESSURE (PA) C6BQ4 : out of range
Severe: rms_fgdepar=619.1958, expected range: 0.0000 522.1538
Severe: avg_pge=0.8749, expected range: -1.0131 0.7500
SHIP SURFACE PRESSURE (PA) C6WW4 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=480.3728, expected range: 0.0000 380.3374
Severe: avg_pge=0.8492, expected range: -0.8482 0.7500
SHIP SURFACE PRESSURE (PA) 9V7987 : out of range
Severe: avg_pge=0.8404, expected range: 0.1694 0.7500
SHIP SURFACE PRESSURE (PA) H3GS : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=470.9616, expected range: 0.0000 317.1860
Severe: avg_pge=0.8618, expected range: -0.8792 0.7500
SHIP WIND VECTOR DIFF (M/S) VRGW3 : out of range
Severe: rms_fgdepar=16.1838, expected range: 0.0000 10.3007
Severe: avg_pge=0.9062, expected range: -0.8799 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 4100730 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=375.6806, expected range: 0.0000 199.1042
Severely_persistent: avg_pge=0.8627, expected range: -0.6123 0.7390
DRIFTING BUOYS SURFACE PRESSURE (PA) 7401502 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9137, expected range: -0.3709 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4801652 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8277, expected range: -0.6328 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2301792 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9278, expected range: -0.2306 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2301607 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8434, expected range: 0.2910 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2501539 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9054, expected range: -1.3596 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2101634 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8596, expected range: -0.2386 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1601527 : out of range
Severe: avg_pge=0.8440, expected range: -0.7347 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4801667 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=459.2634, expected range: 0.0000 399.2790
Severe: avg_pge=0.8871, expected range: -0.8151 0.7500
metar
AUTOMATIC METAR SURFACE PRESSURE (PA) KQSA : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=823.1020, expected range: 0.0000 620.2230
Severe: avg_pge=0.8447, expected range: -0.9408 0.7500
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8026, expected range: 0.6386 0.9246
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89578 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8107, expected range: 0.4385 1.1545
LAND TEMP 2M TEMPERATURE (K) 56137 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8700, expected range: 0.6549 0.9826
LAND TEMP 2M TEMPERATURE (K) 56029 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8279, expected range: 0.6684 0.9849
BUFR LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8034, expected range: 0.6383 0.9290
BUFR LAND SYNOP 2M TEMPERATURE (K) 89578 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8101, expected range: 0.4646 1.1358
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02261 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.2850, expected range: 0.0000 3.9387
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02881 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.9839, expected range: 0.0000 3.7154
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 68394 : out of range
3 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8077, expected range: 0.2809 1.0861
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02135 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=9.8613, expected range: 0.0000 3.8842
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71155 : out of range
Severe: rms_fgdepar=9.2476, expected range: 0.0000 5.2003
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02126 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=8.0467, expected range: 0.0000 3.0597
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71546 : out of range
Severe: rms_fgdepar=7.9154, expected range: 0.0000 3.4887
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02796 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=9.6072, expected range: 0.0000 2.4047
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71977 : out of range
Severe: rms_fgdepar=13.1785, expected range: 0.0000 7.3769
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71348 : out of range
Severe: rms_fgdepar=9.5042, expected range: 0.0000 4.7122
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02789 : out of range
Severe: rms_fgdepar=7.2295, expected range: 0.0000 2.4724
MANUAL LAND SYNOP 2M TEMPERATURE (K) 62200 : out of range
Severe: rms_fgdepar=13.5565, expected range: 0.0000 4.6301
Severe: avg_est_pge=0.8037, expected range: -0.2072 0.4091
MANUAL LAND SYNOP 2M TEMPERATURE (K) 37472 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.2387, expected range: 0.0000 4.1168
MANUAL LAND SYNOP 2M TEMPERATURE (K) 22408 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.4077, expected range: 0.0000 4.0485
MANUAL LAND SYNOP 2M TEMPERATURE (K) 61099 : out of range
Severe: rms_fgdepar=9.4479, expected range: 0.0000 3.3194
METAR 2M TEMPERATURE (K) OIII : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=9.0116, expected range: 0.2000 3.1259
METAR 2M TEMPERATURE (K) ENSR : out of range
Severe: rms_fgdepar=8.8860, expected range: 0.0000 4.6180
METAR 2M TEMPERATURE (K) EDGS : out of range
Severe: rms_fgdepar=16.3286, expected range: 0.0000 7.8082
METAR 2M TEMPERATURE (K) EGGW : out of range
Severe: rms_fgdepar=7.7747, expected range: 0.0000 4.3321
METAR 2M TEMPERATURE (K) UUYY : out of range
Severe: rms_fgdepar=7.1662, expected range: 0.0000 3.1323
LAND TEMP 2M TEMPERATURE (K) 72469 : out of range
4 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8785, expected range: -0.4317 1.4168
BUFR LAND SYNOP 2M TEMPERATURE (K) 02789 : out of range
Severe: rms_fgdepar=7.0565, expected range: 0.0000 2.3561
rh2m
MANUAL LAND SYNOP RH2M (%) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=292.0000, expected range: 323.1232 385.6768