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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-07-01 00:00

amsua
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=0.0887, expected range: 0.1615 0.1748
METOP-C 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=-0.3850, expected range: -0.3521 -0.3166
METOP-B AMSUA ALL SKY RADIANCES CHANNEL 14 : out of range
1 times in the last 10 days for at least one item
Slight: stdev_norm_fgdepar=0.6422, expected range: 0.5777 0.6280
iasi
METOP-B IASI RADIANCES CHANNEL 5403 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0022, expected range: 0.0330 0.0706
METOP-B IASI RADIANCES CHANNEL 5480 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.4108, expected range: -0.3632 -0.3428
METOP-B IASI RADIANCES CHANNEL 106 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2325, expected range: 0.2588 0.2895
METOP-B IASI RADIANCES CHANNEL 113 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2354, expected range: 0.2609 0.2791
METOP-B IASI RADIANCES CHANNEL 163 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2353, expected range: 0.2658 0.2667
METOP-B IASI RADIANCES CHANNEL 170 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1707, expected range: 0.2102 0.2211
METOP-C IASI RADIANCES CHANNEL 5480 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.4108, expected range: -0.3812 -0.3462
METOP-C IASI RADIANCES CHANNEL 89 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2974, expected range: -0.2125 -0.2072
METOP-C IASI RADIANCES CHANNEL 144 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1669, expected range: 0.1943 0.2039
METOP-C IASI RADIANCES CHANNEL 170 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1709, expected range: 0.1863 0.2025
METOP-C IASI RADIANCES CHANNEL 183 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1707, expected range: 0.1896 0.2024
METOP-C IASI RADIANCES CHANNEL 189 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1277, expected range: 0.1601 0.1706
METOP-C IASI RADIANCES CHANNEL 195 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0988, expected range: 0.1249 0.1257
METOP-C IASI RADIANCES CHANNEL 329 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2616, expected range: -0.2326 -0.2172
METOP-C IASI RADIANCES CHANNEL 360 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2054, expected range: -0.1894 -0.1748
METOP-C IASI RADIANCES CHANNEL 362 : out of range
Considerable: stdev_fgdepar=0.2686, expected range: 0.2301 0.2554
ssmis
DMSP-17 SSMIS RADIANCES CHANNEL 9 : out of range
1 times in the last 10 days for at least one item
Slight: obs_number=19606.0000, expected range: 20459.1844 22548.0656
gpsro
COSMIC2-E1 GPSRO RISING HEIGHT 2-4 KM : out of range
Slight: stdev_norm_fgdepar=1.1641, expected range: 0.9575 1.1066
Atmospheric Motion Vector
GOES-16 AMV IR1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HPA) : out of range
Considerable: obs_number=7587.0000, expected range: 4864.9907 5989.6311
Geostationary CSR
HIMAWARI-8 AHI RADIANCES CHANNEL 2 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1784, expected range: 0.1185 0.1476
Radiosondes
LAND TEMP Q (G/KG) 44373 PRESSURE LAYER 600-900 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=5.7623, expected range: 0.0000 2.7163
LAND TEMP Q (G/KG) 96237 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.3277, expected range: 0.1512 1.9633
LAND TEMP Q (G/KG) 29263 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=4.4596, expected range: 0.0000 2.4439
LAND TEMP TEMPERATURE (K) 32618 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=-12.0821, expected range: -2.8443 1.1816
Severe: rms_fgdepar=12.0821, expected range: 0.0000 3.8571
Severe: avg_pge=0.9285, expected range: -0.3764 0.5449
LAND TEMP TEMPERATURE (K) 44373 PRESSURE LAYER 600-900 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=6.8822, expected range: 0.0000 2.5386
Severe: avg_pge=0.8446, expected range: -0.2912 0.4551
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : missing
Severe: obs_number=0.0000, expected range: 0.0000 250.1988
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
Severe: obs_number=178.0000, expected range: 262.8333 277.8333
Severe: obs_number=84.0000, expected range: 168.6425 185.8019
HIGH RESO LAND TEMP Q (G/KG) 14430 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.3244, expected range: 0.1730 1.3486
HIGH RESO LAND TEMP Q (G/KG) 16332 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=5.5566, expected range: 0.6110 1.9936
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=277.0000, expected range: 364.8364 382.9136
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 20 : all data missing
Severe: obs_number=0, expected range: 123.33 160.92
BUFR TEMP DESCENT Q (G/KG) 10184 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.1272, expected range: 0.0000 1.7137
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) MT5XLDRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=18.8291, expected range: 0.0000 7.2076
ADS-C WIND VECTOR DIFF (M/S) QPNEILBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=25.3483, expected range: 0.0000 27.2009
ADS-C WIND VECTOR DIFF (M/S) DQZZ0QBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=27.9014, expected range: 0.0000 10.0068
ADS-C WIND VECTOR DIFF (M/S) A0W01LJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=24.3810, expected range: 0.0000 27.5292
ADS-C WIND VECTOR DIFF (M/S) 0OEUILJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=20.3449, expected range: 0.0000 18.1049
ADS-C WIND VECTOR DIFF (M/S) 1NISBMJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=24.7146, expected range: 0.0000 19.9196
ADS-C WIND VECTOR DIFF (M/S) NKEICOJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=25.0848, expected range: 0.0000 20.5380
ADS-C WIND VECTOR DIFF (M/S) PPSAPQJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=22.6286, expected range: 0.0000 9.6903
ADS-C WIND VECTOR DIFF (M/S) RSLICNRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=33.3863, expected range: 0.0000 16.0526
ADS-C WIND VECTOR DIFF (M/S) OQGDSDZA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=26.9442, expected range: -25.0687 36.2548
ADS-C WIND VECTOR DIFF (M/S) 1VAXAEZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.7894, expected range: 0.0000 9.0200
ADS-C WIND VECTOR DIFF (M/S) XNJCPKZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.1140, expected range: 0.0000 23.7770
ADS-C WIND VECTOR DIFF (M/S) WPCKQNZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=25.0124, expected range: 0.0000 14.0678
ADS-C WIND VECTOR DIFF (M/S) IHOICOZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=27.2040, expected range: 0.0000 20.7602
airep
AIREP WIND VECTOR DIFF (M/S) AAL220 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.4235, expected range: 0.5495 7.5245
AIREP WIND VECTOR DIFF (M/S) BAW222 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.9006, expected range: 0.9883 6.4895
AIREP WIND VECTOR DIFF (M/S) UAL842 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=21.9015, expected range: -1.3633 6.6936
Severe: rms_fgdepar=36.8219, expected range: 0.0000 6.8020
AIREP WIND VECTOR DIFF (M/S) ACA854 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.4714, expected range: 0.0000 8.8012
AIREP WIND VECTOR DIFF (M/S) UAL416 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.5757, expected range: 0.0000 8.1018
AIREP WIND VECTOR DIFF (M/S) UAL907 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.2237, expected range: 0.0000 8.9978
AIREP WIND VECTOR DIFF (M/S) AAL98 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=25.7056, expected range: 0.0000 11.9755
AIREP WIND VECTOR DIFF (M/S) BAW224U PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=28.4759, expected range: 0.0000 11.1242
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 48480 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=20.5842, expected range: 0.0000 22.0063
LAND PILOT WIND VECTOR DIFF (M/S) 42056 PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9135, expected range: -1.6048 0.7500
synop
MANUAL LAND SYNOP RH2M (%) 62120 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9021, expected range: -1.9505 0.7500
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=890.1615, expected range: 440.1226 1252.0233
Severely_persistent: rms_fgdepar=890.8710, expected range: 442.3279 1252.8096
BUFR LAND SYNOP SURFACE PRESSURE (PA) 81996 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-689.4842, expected range: -1221.2297 -61.0484
Severely_persistent: rms_fgdepar=707.4037, expected range: 149.5261 1181.3933
AUTOMATIC LAND SYNOP RH2M (%) 35391 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8447, expected range: -1.0728 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 18156 : out of range
Severe: avg_pge=0.9935, expected range: -1.3561 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 68497 : out of range
Severe: rms_fgdepar=33.8069, expected range: 3.6151 8.7867
MANUAL LAND SYNOP RH2M (%) 60765 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=58.2266, expected range: -26.7143 42.1055
Severe: rms_fgdepar=58.2266, expected range: 0.0000 41.6167
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40672 : out of range
Severe: avg_fgdepar=1056.1700, expected range: -190.4331 352.3237
Severe: rms_fgdepar=1056.1700, expected range: 0.0000 352.3237
Severe: avg_pge=0.9442, expected range: -0.7958 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 41678 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=353.6725, expected range: 0.0000 321.4274
Severe: avg_pge=0.8369, expected range: -0.7237 0.7500
BUFR LAND SYNOP RH2M (%) 15118 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=51.5766, expected range: -9.2862 64.2970
Severe: rms_fgdepar=51.7627, expected range: 0.0000 71.1838
Severe: avg_pge=0.8242, expected range: -0.5889 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 28541 : out of range
Severe: rms_fgdepar=507.1849, expected range: 0.0000 137.3299
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48991 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8399, expected range: -0.5406 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24656 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=571.4977, expected range: 0.0000 208.3220
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48947 : out of range
Severe: rms_fgdepar=601.9035, expected range: 0.0000 339.9365
BUFR LAND SYNOP SURFACE PRESSURE (PA) 91939 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=464.7368, expected range: 18.8759 164.5150
Severe: avg_pge=0.9063, expected range: -0.4368 0.7500
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V3581 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=793.9860, expected range: -683.5281 1216.3706
Severely_persistent: rms_fgdepar=793.9860, expected range: 0.0000 1218.1403
Severely_persistent: avg_pge=0.8677, expected range: -0.9874 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) KAFK : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=571.6154, expected range: -657.1616 932.4903
Severely_persistent: rms_fgdepar=572.9534, expected range: 0.0000 734.7187
Severely_persistent: avg_pge=0.8115, expected range: -1.0092 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) DJBF2 : out of range
Severe: rms_fgdepar=411.3490, expected range: 0.0000 144.2726
BUFR SHIP SYNOP SURFACE PRESSURE (PA) S6AN5 : out of range
Severe: avg_fgdepar=587.8963, expected range: -97.4696 378.6114
Severe: rms_fgdepar=587.8963, expected range: 0.0000 364.1894
Severe: avg_pge=0.8248, expected range: -0.8618 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) MAOR9 : out of range
Severe: rms_fgdepar=570.6975, expected range: 0.0000 131.1871
BUFR SHIP SYNOP SURFACE PRESSURE (PA) LF3N : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=510.6846, expected range: -142.5083 136.4810
Severe: rms_fgdepar=511.1182, expected range: 0.0000 113.6299
Severe: avg_pge=0.8440, expected range: -0.1680 0.1988
BUFR SHIP SYNOP SURFACE PRESSURE (PA) PHET : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=514.7747, expected range: -848.3070 1221.2756
Severe: rms_fgdepar=514.7747, expected range: 0.0000 1064.1059
BUFR SHIP SYNOP SURFACE PRESSURE (PA) HOPW : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=506.3343, expected range: 50.4707 855.0918
Severe: rms_fgdepar=506.3343, expected range: 53.9107 857.7100
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 2200192 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9104, expected range: 0.4560 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 3101513 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=522.8398, expected range: -323.1658 665.5321
Severely_persistent: rms_fgdepar=523.3460, expected range: 0.0000 669.3534
Severely_persistent: avg_pge=0.8908, expected range: -1.0128 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 3101601 : out of range
Severe: rms_fgdepar=533.9890, expected range: 0.0000 248.4717
DRIFTING BUOYS SURFACE PRESSURE (PA) 2101635 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=324.7732, expected range: 0.0000 201.8373
Severe: avg_pge=0.8075, expected range: -0.6390 0.7500
snow
MANUAL LAND SYNOP SNOW (CM) 37552 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=54.0000, expected range: 1.6032 61.7718
Severely_persistent: rms_fgdepar=55.1090, expected range: 4.6143 61.5958
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=-773.4365, expected range: -774.3973 -771.8132
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=773.4367, expected range: 771.8132 774.3974
BUFR LAND SYNOP SNOW (CM) _MI11588 : out of range
32 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=63.4286, expected range: 54.9546 66.2033
BUFR LAND SYNOP SNOW (CM) _MI11588 : out of range
32 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=63.5902, expected range: 55.5398 66.2508
BUFR LAND SYNOP SNOW (CM) _MI1067E : out of range
34 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=61.0294, expected range: 52.8581 64.0562
BUFR LAND SYNOP SNOW (CM) _MI1067E : out of range
34 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=61.4920, expected range: 53.7882 64.3199
t2m
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
28 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-17.0930, expected range: -20.7061 -14.8796
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
28 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=17.1031, expected range: 14.8930 20.7172
METAR 2M TEMPERATURE (K) KGSB : out of range
Severe: rms_fgdepar=11.8471, expected range: 0.0000 6.4868
BUFR LAND SYNOP 2M TEMPERATURE (K) 89504 : out of range
Severe: avg_fgdepar=14.0302, expected range: 0.0702 12.6332
Severe: rms_fgdepar=14.1188, expected range: 0.1942 12.7341
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
Severe: avg_fgdepar=-17.5949, expected range: -20.9161 -17.0450
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
Severe: rms_fgdepar=17.6093, expected range: 17.0702 20.6614
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI1B0DD : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=12.0524, expected range: 0.0000 14.1338
rh2m
METAR RH2M (%) SBAT : out of range
Severe: rms_fgdepar=30.7946, expected range: 5.4122 17.7084