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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-07-02 00:00

amsua
NOAA 15 AMSUA ALL SKY RADIANCES CHANNEL 7 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0682, expected range: -0.0492 -0.0252
METOP-B AMSUA ALL SKY RADIANCES CHANNEL 13 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1003, expected range: 0.1615 0.1642
NOAA 18 AMSUA ALL SKY RADIANCES CHANNEL 14 : out of range
Slight: stdev_norm_fgdepar=0.6449, expected range: 0.5807 0.6314
iasi
METOP-B IASI RADIANCES CHANNEL 5403 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0012, expected range: 0.0330 0.0690
METOP-B IASI RADIANCES CHANNEL 5480 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.4125, expected range: -0.3632 -0.3461
METOP-B IASI RADIANCES CHANNEL 163 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2335, expected range: 0.2658 0.2670
METOP-B IASI RADIANCES CHANNEL 170 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1735, expected range: 0.2102 0.2196
METOP-B IASI RADIANCES CHANNEL 329 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2387, expected range: -0.2067 -0.1799
METOP-B IASI RADIANCES CHANNEL 335 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1731, expected range: -0.1480 -0.1303
METOP-C IASI RADIANCES CHANNEL 5480 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.4093, expected range: -0.3812 -0.3479
METOP-C IASI RADIANCES CHANNEL 329 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2720, expected range: -0.2326 -0.2208
METOP-C IASI RADIANCES CHANNEL 335 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2257, expected range: -0.1965 -0.1662
METOP-C IASI RADIANCES CHANNEL 360 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2170, expected range: -0.1894 -0.1762
METOP-C IASI RADIANCES (191 channels affected) : out of range
Severe: obs_number=15327.0000, expected range: 22777.5888 23151.0362
cris
NOAA20 CRIS RADIANCES CHANNEL 33 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1788, expected range: 0.1992 0.2223
NOAA20 CRIS RADIANCES (33 channels affected) : out of range
Considerable: obs_number=211.0000, expected range: 0.0000 90.8998
airs
AQUA AIRS RADIANCES CHANNEL 52 : out of range
Severe: avg_biascorr=-0.2827, expected range: -0.2449 -0.2198
AQUA AIRS RADIANCES CHANNEL 72 : out of range
Severe: avg_biascorr=-0.9066, expected range: -0.8258 -0.7971
atms
NOAA20 ATMS RADIANCES CHANNEL 13 : out of range
Considerable: avg_biascorr=-0.2725, expected range: -0.2595 -0.2355
gpsro
All COSMIC2-E5 GPSRO RISING ALL HEIGHTS Global : all data missing
Severe: obs_number=0, expected range: 1010.46 2867.66
SENTINEL-6A GPSRO RISING (14 impact heights affected) : out of range
Slight: obs_number=566.0000, expected range: 2009.0128 4495.7372
Atmospheric Motion Vector
AQUA MODIS CLEAR WV WIND VECTOR DIFF (M/S) (2 pressure layers affected : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=220.0000, expected range: 0.0000 98.3857
GOES-16 AMV IR1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=7522.0000, expected range: 4669.4872 5989.6311
Radiosondes
LAND TEMP WIND VECTOR DIFF (M/S) 40766 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=15.6232, expected range: 0.0000 6.0357
LAND TEMP WIND VECTOR DIFF (M/S) 48568 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=16.9327, expected range: 0.0000 8.3469
LAND TEMP Q (G/KG) 22271 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.2334, expected range: 0.0000 1.0760
LAND TEMP Q (G/KG) 83768 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.8864, expected range: -0.0578 0.0840
HIGH RESO LAND TEMP TEMPERATURE (K) 72274 PRESSURE LAYER 900-1200 (HPA : out of range
Severe: rms_fgdepar=9.0992, expected range: 0.0000 5.5267
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 42369 PRESSURE LAYER 0-300 : out of range
Severe: rms_fgdepar=22.6357, expected range: 2.8172 5.5641
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (2 pressure layers affected : out of range
Severe: obs_number=55.0000, expected range: 91.2107 98.5893
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
Severe: obs_number=184.0000, expected range: 85.2265 96.7735
Severe: obs_number=113.0000, expected range: 195.1981 212.3575
Severe: obs_number=140.0000, expected range: 88.4107 95.7893
HIGH RESO LAND TEMP Q (G/KG) 72274 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=2.0488, expected range: 0.0881 1.0768
HIGH RESO LAND TEMP Q (G/KG) 72672 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.2475, expected range: 0.0000 1.0484
HIGH RESO LAND TEMP Q (G/KG) 12982 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.1917, expected range: 0.5949 1.3355
HIGH RESO LAND TEMP Q (G/KG) 47401 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.9507, expected range: 0.0000 1.6583
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.1371, expected range: 0.6404 1.4400
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) KAOHRXJA PRESSURE LAYER 900-1200 (H : out of range
Severe: rms_fgdepar=17.9677, expected range: 0.0000 8.1269
WIGOS AMDAR TEMPERATURE (K) EU1711 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=8.7957, expected range: 0.0000 3.8754
WIGOS AMDAR TEMPERATURE (K) HHHKJFBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=10.8247, expected range: -1.2069 0.9733
Severe: rms_fgdepar=10.9350, expected range: 0.0000 1.2128
Severe: avg_pge=0.8936, expected range: 0.0000 0.0000
WIGOS AMDAR TEMPERATURE (K) EU1711 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_pge=0.8539, expected range: -0.4814 0.5912
WIGOS AMDAR Q (G/KG) WWJWUUJA PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=6.1326, expected range: 0.0000 9.7509
ADS-C WIND VECTOR DIFF (M/S) LE5CTRJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.6433, expected range: 0.7012 8.0413
airep
AIREP WIND VECTOR DIFF (M/S) NBT022 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=25.1878, expected range: 1.6114 5.5217
Severe: rms_fgdepar=33.8217, expected range: 2.5973 5.6978
AIREP WIND VECTOR DIFF (M/S) ANZ952 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.0724, expected range: 0.0000 6.8296
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : missing
8 times in the last 10 days for at least one item
Severely_persistent: obs_number=0.0000, expected range: 0.0000 1609.2753
synop
BUFR LAND SYNOP RH2M (%) 64040 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8176, expected range: -0.8812 0.7500
BUFR LAND SYNOP RH2M (%) 15118 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=52.3085, expected range: -13.2679 70.6720
Severely_persistent: rms_fgdepar=52.6070, expected range: 0.0000 78.7085
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41573 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=907.9589, expected range: 478.2530 1192.2138
Severely_persistent: rms_fgdepar=908.4839, expected range: 480.6277 1192.9389
AUTOMATIC LAND SYNOP RH2M (%) 68349 : out of range
Severe: rms_fgdepar=36.1432, expected range: 0.0000 20.0204
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=1407.0000, expected range: 1896.7445 1920.0055
Severe: obs_number=1356.0000, expected range: 1846.9555 1868.2945
MANUAL LAND SYNOP RH2M (%) 41560 : out of range
Severe: rms_fgdepar=34.9998, expected range: 0.0000 32.8093
Severe: avg_pge=0.9927, expected range: -0.6968 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 91601 : out of range
Severe: rms_fgdepar=301.6923, expected range: 0.0000 253.6973
Severe: avg_pge=0.8399, expected range: -0.9819 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83967 : out of range
Severe: avg_fgdepar=875.2319, expected range: -185.2411 143.2541
Severe: rms_fgdepar=875.2319, expected range: 0.0000 210.5270
Severe: avg_pge=0.9337, expected range: -0.5910 0.7494
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 61049 : out of range
Severe: rms_fgdepar=467.9114, expected range: 0.0000 349.3319
Severe: avg_pge=0.8751, expected range: -0.9247 0.7500
BUFR LAND SYNOP RH2M (%) 36501 : out of range
Severe: rms_fgdepar=34.9281, expected range: 0.0000 16.1989
BUFR LAND SYNOP RH2M (%) 64601 : out of range
Severe: rms_fgdepar=30.6135, expected range: 0.0000 13.0189
BUFR LAND SYNOP RH2M (%) 76122 : out of range
Severe: rms_fgdepar=41.6690, expected range: 4.1460 32.2688
Severe: avg_pge=0.8043, expected range: -0.1063 0.1647
BUFR LAND SYNOP RH2M (%) 72672 : out of range
Severe: rms_fgdepar=38.6686, expected range: 0.0000 11.9070
BUFR LAND SYNOP RH2M (%) 72464 : out of range
Severe: rms_fgdepar=38.5919, expected range: 0.0000 16.2439
BUFR LAND SYNOP RH2M (%) 60415 : out of range
Severe: rms_fgdepar=40.5173, expected range: 0.0000 35.1124
Severe: avg_pge=0.8566, expected range: -0.0377 0.0540
BUFR LAND SYNOP RH2M (%) 06747 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-50.3339, expected range: -95.8351 54.5810
Severe: rms_fgdepar=50.4630, expected range: 0.0000 87.0428
BUFR LAND SYNOP RH2M (%) 06749 : out of range
Severe: avg_fgdepar=-50.9054, expected range: -93.4949 56.6179
Severe: rms_fgdepar=51.5049, expected range: 0.0000 88.4191
BUFR LAND SYNOP RH2M (%) 72569 : out of range
Severe: avg_fgdepar=51.4321, expected range: -29.7368 34.4557
Severe: rms_fgdepar=51.4321, expected range: 0.0000 30.0868
Severe: avg_pge=0.9945, expected range: -0.0012 0.0073
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48991 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=529.4078, expected range: -854.9458 1338.4469
Severe: rms_fgdepar=529.4078, expected range: 0.0000 1338.4469
Severe: avg_pge=0.8926, expected range: -0.6485 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41915 : out of range
Severe: rms_fgdepar=598.1852, expected range: 0.0000 212.0340
BUFR LAND SYNOP SURFACE PRESSURE (PA) 30739 : out of range
Severe: rms_fgdepar=411.1126, expected range: 0.0000 76.9231
BUFR LAND SYNOP SURFACE PRESSURE (PA) 91939 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=374.0616, expected range: 13.0752 168.5755
Severe: avg_pge=0.8821, expected range: -0.5109 0.7500
ship
SHIP WIND VECTOR DIFF (M/S) VRKX7 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8241, expected range: 0.3932 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HA4777 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=602.1888, expected range: 208.4332 1185.1285
Severely_persistent: rms_fgdepar=602.1888, expected range: 208.4332 1185.1285
BUFR SHIP SYNOP SURFACE PRESSURE (PA) LF3N : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8090, expected range: -0.8132 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) 62141 : out of range
Severe: rms_fgdepar=321.8678, expected range: 0.0000 97.8481
BUFR SHIP SYNOP SURFACE PRESSURE (PA) : out of range
Severe: rms_fgdepar=159.9357, expected range: 48.3071 108.2764
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6BJ9 : out of range
Severe: rms_fgdepar=477.1789, expected range: 0.0000 225.9820
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 2200192 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8731, expected range: 0.4763 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 3101513 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=501.3092, expected range: -353.4315 749.7523
Severely_persistent: rms_fgdepar=502.9831, expected range: 0.0000 762.4535
Severely_persistent: avg_pge=0.8821, expected range: -1.0299 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6204596 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-557.6165, expected range: -1512.9238 1484.8737
Severely_persistent: rms_fgdepar=560.3539, expected range: 0.0000 868.4408
Severely_persistent: avg_pge=0.9083, expected range: -0.2661 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5300555 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-744.8271, expected range: -118.3663 79.8558
Severe: rms_fgdepar=744.8271, expected range: 0.0000 107.7265
Severe: avg_pge=0.9326, expected range: -0.1295 0.1568
DRIFTING BUOYS SURFACE PRESSURE (PA) 5601697 : out of range
Severe: rms_fgdepar=364.0361, expected range: 0.0000 147.6196
metar
METAR SURFACE PRESSURE (PA) DRRM : out of range
Severe: avg_fgdepar=-513.6178, expected range: -213.8262 180.0489
Severe: rms_fgdepar=683.1095, expected range: 0.0000 258.0095
METAR SURFACE PRESSURE (PA) HTMW : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=387.2277, expected range: 0.0000 174.5815
AUTOMATIC METAR SURFACE PRESSURE (PA) EPBC : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=536.5387, expected range: 0.0000 183.3996
AUTOMATIC METAR SURFACE PRESSURE (PA) KGUR : out of range
Severe: rms_fgdepar=342.3454, expected range: 0.0000 99.0905
snow
MANUAL LAND SYNOP SNOW (CM) 37552 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=57.5000, expected range: 2.5468 67.9532
Severely_persistent: rms_fgdepar=57.6758, expected range: 4.0814 68.7356
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=-757.3965, expected range: -774.4554 -771.8776
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=757.8667, expected range: 771.8776 774.4554
BUFR LAND SYNOP SNOW (CM) _MI11588 : out of range
36 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=63.1500, expected range: 56.1856 65.5869
BUFR LAND SYNOP SNOW (CM) _MI11588 : out of range
36 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=63.2080, expected range: 56.8949 65.5153
BUFR LAND SYNOP SNOW (CM) _MI1067E : out of range
36 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=53.5313, expected range: 52.6443 64.8966
BUFR LAND SYNOP SNOW (CM) _MI1067E : out of range
36 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=54.0431, expected range: 53.5595 65.1423
t2m
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
30 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-17.0129, expected range: -19.6766 -15.6954
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
30 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=17.0892, expected range: 15.6913 19.7010
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89004 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-14.2103, expected range: -5.4524 5.3373
Severe: rms_fgdepar=14.2117, expected range: 0.0000 4.6797
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=1386.0000, expected range: 1801.4388 1838.6664
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89004 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-15.8434, expected range: -5.2382 5.5798
Severe: rms_fgdepar=15.8434, expected range: 0.0000 5.1174
MANUAL LAND SYNOP 2M TEMPERATURE (K) 72569 : out of range
Severe: rms_fgdepar=11.8817, expected range: 0.0000 5.8910
METAR 2M TEMPERATURE (K) FTTD : out of range
Severe: avg_fgdepar=14.5032, expected range: -4.8788 5.7246
Severe: rms_fgdepar=14.5032, expected range: 0.0000 4.7004
LAND TEMP 2M TEMPERATURE (K) 72274 : out of range
Severe: rms_fgdepar=10.8621, expected range: 0.0000 5.3426
BUFR LAND SYNOP 2M TEMPERATURE (K) 89004 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-14.9411, expected range: -5.4061 5.3505
Severe: rms_fgdepar=14.9620, expected range: 0.0000 4.7368
BUFR LAND SYNOP 2M TEMPERATURE (K) 89504 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=14.1784, expected range: -0.8964 14.5017
Severe: rms_fgdepar=14.2100, expected range: 0.0000 14.5553
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-18.0983, expected range: -19.8740 -18.2556
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=18.1348, expected range: 18.2730 19.8680
rh2m
MANUAL LAND SYNOP RH2M (%) 60476 : out of range
Severe: rms_fgdepar=37.9361, expected range: 0.0000 21.1455
All BUFR LAND SYNOP WMO BLOCK 66 : all data missing
Severe: obs_number=0, expected range: 42.91 104.20
AUTOMATIC LAND SYNOP RH2M (%) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=1385.0000, expected range: 1768.5718 1860.0949