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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2021-09-12 00:00

AMSUA Pacific RARS
NOAA-19 AMSUA RADIANCES CHANNEL 5 : out of range
Slight: stdev_fgdepar=0.1981, expected range: 0.0000 0.0000
iasi
All METOP-A IASI ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 13170.73 30951.49
mhs
NOAA-19 MHS ALLSKY RADIANCES CHANNEL 4 : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=14235.0000, expected range: 15307.4339 16858.0661
gpsro
All COSMIC2-E1 GPSRO RISING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 827.96 3098.29
All TERRASAR-X GPSRO SETTING ALL HEIGHTS Global : all data missing
Severe: obs_number=0, expected range: 128.07 1403.50
KOMPSAT-5 GPSRO SETTING HEIGHT 40-42 KM : out of range
1 times in the last 10 days for at least one item
Considerable: avg_norm_fgdepar=0.5259, expected range: -0.1097 0.2681
KOMPSAT-5 GPSRO SETTING HEIGHT 38-40 KM : out of range
1 times in the last 10 days for at least one item
Slight: avg_norm_fgdepar=0.3818, expected range: -0.1383 0.2434
METOP-C GRAS RISING HEIGHT 30-32 KM : out of range
Slight: avg_norm_fgdepar=0.0265, expected range: -0.2682 -0.0341
Atmospheric Motion Vector
HIMAWARI-8 AMV CLOUDY WV3 WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 : out of range
Slight: stdev_fgdepar=2.4350, expected range: 1.8324 2.2330
Radiosondes
LAND TEMP TEMPERATURE (K) 33393 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=7.1449, expected range: 0.0000 2.6389
Severe: avg_pge=0.8902, expected range: -0.4323 0.7107
HIGH RESO LAND TEMP Q (G/KG) 57447 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.9559, expected range: 0.0000 1.5555
HIGH RESO LAND TEMP Q (G/KG) 04018 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.0946, expected range: 0.0000 1.1625
LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: obs_number=94.0000, expected range: 30.5095 60.2405
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 900-1200 (HPA) : out of range
Considerable: obs_number=1528.0000, expected range: 1299.8859 1451.6141
Considerable: rms_fgdepar=1.0949, expected range: 0.2076 0.7845
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA : out of range
Considerable: rms_fgdepar=10.7193, expected range: 0.0000 6.7361
HIGH RESO SEA TEMP Q (G/KG) (2 pressure layers affected) : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=205.0000, expected range: 269.5342 333.2158
amdar
AMDAR WIND VECTOR DIFF (M/S) UAL114 PRESSURE LAYER 0-300 (HPA) : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=21.4610, expected range: -25.2621 43.5428
Severe: rms_fgdepar=21.4610, expected range: 0.0000 44.6315
prof
JAPANESE WIND PROFILER VECTOR DIFF (M/S) 47912 (2 pressure layers affe : out of range
Severe: avg_fgdepar=21.2544, expected range: 0.5000 6.8571
Severe: avg_pge=0.8974, expected range: -0.3111 0.4652
JAPANESE WIND PROFILER VECTOR DIFF (M/S) 47912 (3 pressure layers affe : out of range
Severe: rms_fgdepar=22.7685, expected range: 0.4486 7.0494
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 42867 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=34.6351, expected range: -3.3908 11.4817
Severe: rms_fgdepar=34.6351, expected range: 0.0000 12.2847
Severe: avg_pge=0.9145, expected range: -0.4785 0.7500
LAND PILOT WIND VECTOR DIFF (M/S) 48887 PRESSURE LAYER 600-900 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=19.7523, expected range: 0.0000 7.1126
synop
BUFR LAND SYNOP SURFACE PRESSURE (PA) 26547 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8035, expected range: -1.3209 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 89811 : out of range
Severe: avg_fgdepar=-72.4639, expected range: -140.7874 32.5498
Severe: rms_fgdepar=72.4639, expected range: 0.0000 140.4671
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 04382 : out of range
Severe: rms_fgdepar=422.9674, expected range: 0.0000 178.1214
Severe: avg_pge=0.8067, expected range: -0.5567 0.7500
MANUAL LAND SYNOP RH2M (%) 62306 : out of range
Severe: rms_fgdepar=39.9005, expected range: 0.0000 7.4316
Severe: avg_pge=0.9602, expected range: 0.0001 0.0055
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 36083 : out of range
Severe: rms_fgdepar=506.2692, expected range: 0.0000 257.1481
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42395 : out of range
Severe: avg_pge=0.8724, expected range: -1.0770 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83639 : out of range
Severe: avg_pge=0.8358, expected range: -0.8663 0.7500
BUFR LAND SYNOP RH2M (%) 95448 : out of range
Severe: rms_fgdepar=30.6501, expected range: 0.0000 12.4128
BUFR LAND SYNOP RH2M (%) 40439 : out of range
Severe: avg_pge=0.8966, expected range: -1.1079 0.7500
BUFR LAND SYNOP RH2M (%) 71289 : out of range
Severe: rms_fgdepar=36.5910, expected range: 0.0000 18.8356
BUFR LAND SYNOP RH2M (%) 71689 : out of range
Severe: rms_fgdepar=37.8260, expected range: 0.0000 15.1777
BUFR LAND SYNOP SURFACE PRESSURE (PA) 04382 : out of range
Severe: rms_fgdepar=413.6993, expected range: 0.0000 150.5612
Severe: avg_pge=0.8404, expected range: -0.8431 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 58974 : out of range
Severe: rms_fgdepar=361.5577, expected range: 0.0000 90.6410
BUFR LAND SYNOP SURFACE PRESSURE (PA) 72567 : out of range
Severe: rms_fgdepar=327.6485, expected range: 0.0000 131.5305
BUFR LAND SYNOP SURFACE PRESSURE (PA) 93498 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=441.0584, expected range: 0.0000 344.0608
Severe: avg_pge=0.9048, expected range: -1.2407 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41998 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8662, expected range: -1.1558 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) : out of range
Considerable: obs_number=58.0000, expected range: 64.7873 69.9627
Considerable: obs_number=237.0000, expected range: 309.0799 370.4757
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) PINX : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-523.9073, expected range: -874.4086 445.5998
Severely_persistent: rms_fgdepar=524.0453, expected range: 0.0000 868.8279
Severely_persistent: avg_pge=0.8245, expected range: -0.7854 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) D5NK2 : out of range
Severe: rms_fgdepar=16.9658, expected range: 0.0000 8.1445
Severe: avg_pge=0.9049, expected range: -1.0813 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) V7QJ9 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=22.7471, expected range: -2.7624 19.5729
Severe: rms_fgdepar=22.7473, expected range: 0.0000 19.5740
Severe: avg_pge=0.9235, expected range: 0.4716 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6EJ5 : out of range
Severe: avg_fgdepar=587.9385, expected range: -199.4788 229.3700
Severe: rms_fgdepar=589.9165, expected range: 0.0000 231.9688
Severe: avg_pge=0.8178, expected range: -0.0810 0.0957
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HA3667 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=519.1500, expected range: -593.9044 804.5906
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRPF8 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=563.1226, expected range: 257.3119 1062.4998
Severe: rms_fgdepar=563.1226, expected range: 257.3346 1062.4894
BUFR SHIP SYNOP SURFACE PRESSURE (PA) A8WI8 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=585.1169, expected range: -334.5393 516.0138
Severe: rms_fgdepar=589.0115, expected range: 0.0000 443.8985
Severe: avg_pge=0.8237, expected range: -0.7510 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) ZMAG : out of range
Severe: rms_fgdepar=316.3362, expected range: 0.0000 87.5218
BUFR SHIP SYNOP SURFACE PRESSURE (PA) ONFZ : out of range
Severe: avg_pge=0.8003, expected range: -1.0874 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101743 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-555.9957, expected range: -615.8241 670.1821
Severely_persistent: rms_fgdepar=572.6661, expected range: -554.2500 699.3244
Severely_persistent: avg_pge=0.9000, expected range: -0.9550 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6204563 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8341, expected range: -0.8616 0.7500
MOORED BUOYS WIND VECTOR DIFF (M/S) 4100044 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=15.4739, expected range: 0.0000 2.4117
Severe: avg_pge=0.9060, expected range: -0.2873 0.3697
metar
METAR SURFACE PRESSURE (PA) FZQA : out of range
Severe: rms_fgdepar=536.9220, expected range: 0.0000 200.6592
snow
BUFR LAND SYNOP SNOW (CM) _MI10DB0 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=53.8125, expected range: 51.8230 66.7543
BUFR LAND SYNOP SNOW (CM) _MI10DB0 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=54.9733, expected range: 52.9360 66.6700
BUFR LAND SYNOP SNOW (CM) _MI1B25E : out of range
29 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=55.9608, expected range: 32.4217 67.8133
BUFR LAND SYNOP SNOW (CM) _MI1B25E : out of range
29 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=56.0780, expected range: 35.9445 66.4323
BUFR LAND SYNOP SNOW (CM) _MI16E6F : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=60.3750, expected range: 51.2575 73.0814
BUFR LAND SYNOP SNOW (CM) _MI16E6F : out of range
38 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=60.5196, expected range: 52.5620 72.4831
BUFR LAND SYNOP SNOW (CM) _MI1EF2F : out of range
Severe: rms_fgdepar=41.2264, expected range: 1.5158 23.5023
t2m
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-15.9544, expected range: -17.4905 -15.1829
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=15.9865, expected range: 15.2033 17.5328
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.7087, expected range: -21.8797 -9.2356
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=13.7134, expected range: 9.2768 21.8692
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89811 : out of range
Severe: avg_fgdepar=-13.9866, expected range: -23.0416 -8.3901
Severe: rms_fgdepar=13.9874, expected range: 8.3883 23.0592
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 52955 : out of range
Severe: avg_fgdepar=12.1431, expected range: -15.0312 18.2149
Severe: rms_fgdepar=12.1431, expected range: 0.0000 12.4787
MANUAL LAND SYNOP 2M TEMPERATURE (K) 31418 : out of range
Severe: rms_fgdepar=10.7733, expected range: 0.0000 3.7836
METAR 2M TEMPERATURE (K) UUEE : out of range
Severe: rms_fgdepar=10.1544, expected range: 0.0000 3.6482
BUFR LAND SYNOP 2M TEMPERATURE (K) 89811 : out of range
Severe: avg_fgdepar=-13.7967, expected range: -22.9289 -8.6947
Severe: rms_fgdepar=13.7973, expected range: 8.6960 22.9457
BUFR LAND SYNOP 2M TEMPERATURE (K) 84752 : out of range
Severe: avg_fgdepar=12.7314, expected range: -1.9349 1.4119
Severe: rms_fgdepar=12.7314, expected range: 0.0000 2.0809
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) : out of range
Considerable: obs_number=293.0000, expected range: 339.2475 418.3996
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
Considerable: obs_number=201.0000, expected range: 249.4637 273.8304
rh2m
MANUAL LAND SYNOP RH2M (%) 60351 : out of range
Severe: rms_fgdepar=30.6444, expected range: 0.0000 17.2246
BUFR LAND SYNOP RH2M (%) : out of range
Considerable: obs_number=199.0000, expected range: 236.0321 279.4679