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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2021-07-28 00:00

amsua
NOAA-18 AMSUA RADIANCES CHANNEL 14 : out of range
Considerable: avg_biascorr=-0.3488, expected range: -0.2892 -0.2088
METOP-C AMSUA RADIANCES CHANNEL 11 : out of range
Considerable: avg_biascorr=-0.3063, expected range: -0.2708 -0.2043
METOP-C AMSUA RADIANCES CHANNEL 14 : out of range
Considerable: avg_biascorr=-0.2263, expected range: -0.1642 -0.0561
iasi
METOP-C IASI RADIANCES (167 channels affected) : out of range
Severe: avg_fgdepar=0.2955, expected range: -0.0773 0.0656
METOP-C IASI RADIANCES (79 channels affected) : out of range
Severe: avg_biascorr=0.1896, expected range: 0.0838 0.1220
METOP-C IASI RADIANCES (78 channels affected) : out of range
Considerable: obs_number=1848.0000, expected range: 1987.5935 2365.6565
METOP-A IASI RADIANCES CHANNEL 290 : out of range
Slight: avg_fgdepar=0.0403, expected range: 0.0118 0.0339
cris
NOAA20 CRIS RADIANCES CHANNEL 110 : out of range
Considerable: avg_fgdepar=0.0402, expected range: 0.0004 0.0245
NOAA20 CRIS RADIANCES CHANNEL 57 : out of range
Considerable: obs_number=1865.0000, expected range: 1993.9024 2497.4726
airs
AQUA AIRS RADIANCES CHANNEL 151 : out of range
Considerable: avg_biascorr=-0.1833, expected range: -0.1467 -0.0756
mhs
METOP-A MHS ALLSKY RADIANCES CHANNEL 5 : out of range
Slight: stdev_norm_fgdepar=0.5911, expected range: 0.5356 0.5790
ssmis
DMSP-17 SSMIS RADIANCES (9 channels affected) : out of range
Considerable: obs_number=14522.0000, expected range: 15722.3875 18647.7375
gpsro
All TERRASAR-X GPSRO SETTING ALL HEIGHTS Global : all data missing
Severe: obs_number=0, expected range: 118.60 1018.35
COSMIC2-E6 GPSRO SETTING HEIGHT 30-32 KM : out of range
Slight: avg_norm_fgdepar=0.1958, expected range: -0.0821 0.1351
Atmospheric Motion Vector
NPP VIIRS AMV IR WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=1619.0000, expected range: 0.0000 826.2607
NOAA20 VIIRS-AMV IR WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: obs_number=1637.0000, expected range: 0.0000 813.0613
Geostationary CSR
METEOSAT-8 SEVIRI RADIANCES CHANNEL 2 : out of range
Considerable: avg_biascorr=-0.2182, expected range: -0.1470 -0.0338
Radiosondes
All LAND TEMP ALL LAYERS WMO BLOCK 16 : all data missing
Severe: obs_number=0, expected range: 56.09 104.41
HIGH RESO LAND TEMP TEMPERATURE (K) 72274 PRESSURE LAYER 900-1200 (HPA : out of range
Severe: avg_pge=0.8201, expected range: -0.9893 0.7500
HIGH RESO LAND TEMP Q (G/KG) 47741 PRESSURE LAYER 600-900 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=2.7238, expected range: 0.6827 1.5888
HIGH RESO LAND TEMP Q (G/KG) 72659 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=6.3543, expected range: -3.8293 6.9809
Severe: rms_fgdepar=6.4693, expected range: 0.0000 6.8660
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 85 : all data missing
Severe: obs_number=0, expected range: 78.84 172.76
All HIGH RESO SEA TEMP ALL LAYERS Tropics : all data missing
Severe: obs_number=0, expected range: 103.09 126.66
All HIGH RESO SEA TEMP ALL LAYERS Alantic Tropical are : all data missing
Severe: obs_number=0, expected range: 103.09 126.66
All HIGH RESO SEA TEMP ALL LAYERS South Atlantic : all data missing
Severe: obs_number=0, expected range: 103.09 126.66
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
Considerable: obs_number=658.0000, expected range: 713.5089 757.2411
HIGH RESO LAND TEMP TEMPERATURE (K) (3 pressure layers affected) : out of range
Considerable: obs_number=269.0000, expected range: 106.5049 157.4951
HIGH RESO LAND TEMP Q (G/KG) (2 pressure layers affected) : out of range
Considerable: obs_number=81.0000, expected range: 130.8892 179.8608
amdar
WIGOS AMDAR Q (G/KG) DVPUOFZA PRESSURE LAYER 900-1200 (HPA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-7.1571, expected range: -10.3322 2.0962
Severely_persistent: rms_fgdepar=7.1734, expected range: 0.0000 11.8528
AMDAR WIND VECTOR DIFF (M/S) ANZ175 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_fgdepar=26.7332, expected range: -2.9421 7.5866
Severe: rms_fgdepar=26.7332, expected range: 0.0000 7.5866
Severe: avg_pge=0.8923, expected range: -0.4458 0.5820
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU1725 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.3234, expected range: 0.0000 6.5340
WIGOS AMDAR WIND VECTOR DIFF (M/S) IDGUNXJA PRESSURE LAYER 900-1200 (H : out of range
Severe: rms_fgdepar=15.5703, expected range: 0.2482 5.7958
ADS-C WIND VECTOR DIFF (M/S) CJSYELJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.2818, expected range: 1.0749 5.6665
ADS-C WIND VECTOR DIFF (M/S) 1KCDAXJA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=18.8306, expected range: 0.0000 8.4589
ADS-C WIND VECTOR DIFF (M/S) SN3SPDZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.3572, expected range: 0.1481 7.7126
airep
AIREP WIND VECTOR DIFF (M/S) KLM142 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=20.4339, expected range: 0.0000 9.0981
prof
All EUROPEAN WIND PROFILER ALL LAYERS South West Pacific : all data missing
Severely_persistent: obs_number=0, expected range: 82.45 622.87
All EUROPEAN WIND PROFILER ALL LAYERS West pacific Tropica : all data missing
Severely_persistent: obs_number=0, expected range: 82.45 622.87
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 42348 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=35.9675, expected range: -35.4498 59.2500
Severe: rms_fgdepar=35.9675, expected range: 0.0000 54.1870
Severe: avg_pge=0.9046, expected range: -1.3740 0.7500
LAND PILOT WIND VECTOR DIFF (M/S) PRESSURE LAYER 600-900 (HPA) : out of range
Considerable: obs_number=95.0000, expected range: 137.8118 216.1882
synop
BUFR LAND SYNOP SURFACE PRESSURE (PA) 16121 : out of range
42 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-664.4723, expected range: -2025.3781 1163.8169
Severely_persistent: rms_fgdepar=664.6561, expected range: 0.0000 2006.6018
Severely_persistent: avg_pge=0.9430, expected range: -1.7482 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 16239 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8731, expected range: -1.5326 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 38018 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=36.7824, expected range: 0.0000 20.9176
MANUAL LAND SYNOP RH2M (%) 60360 : out of range
Severe: avg_pge=0.9714, expected range: -0.0208 0.0311
MANUAL LAND SYNOP RH2M (%) 62053 : out of range
Severe: rms_fgdepar=35.4050, expected range: 0.0000 16.9911
MANUAL LAND SYNOP RH2M (%) 16597 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=40.2638, expected range: 0.0000 22.1423
Severe: avg_pge=0.9946, expected range: -0.7374 0.7500
MANUAL LAND SYNOP RH2M (%) 42459 : out of range
Severe: avg_pge=0.9935, expected range: -1.0823 0.7500
MANUAL LAND SYNOP Z (M) 38869 : out of range
Severe: avg_pge=0.9923, expected range: -0.4246 0.5511
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42970 : out of range
Severe: rms_fgdepar=494.4713, expected range: 0.0000 168.1252
Severe: avg_pge=0.8794, expected range: -0.6856 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 65401 : out of range
Severe: avg_fgdepar=-1131.4174, expected range: -88.6299 139.9041
Severe: rms_fgdepar=1131.4174, expected range: 0.0000 121.7416
Severe: avg_pge=0.9446, expected range: -0.4971 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 89251 : out of range
Severe: avg_fgdepar=-807.6593, expected range: -455.1705 525.4660
Severe: rms_fgdepar=807.6593, expected range: -378.5183 488.1283
Severe: avg_pge=0.9277, expected range: -1.4872 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 67161 : out of range
Severe: rms_fgdepar=580.5323, expected range: 0.0000 233.6436
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83781 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8336, expected range: -1.1404 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 98222 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-546.9957, expected range: -139.5539 49.3449
Severe: rms_fgdepar=547.3324, expected range: 2.3940 122.7962
Severe: avg_pge=0.8988, expected range: -0.2343 0.4027
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 78663 : out of range
Severe: rms_fgdepar=323.7684, expected range: 0.0000 179.7113
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 76556 : out of range
Severe: rms_fgdepar=420.8513, expected range: 33.0314 210.0411
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42237 : out of range
Severe: rms_fgdepar=351.0830, expected range: 0.0000 238.5079
Severe: avg_pge=0.8206, expected range: -0.9788 0.7500
BUFR LAND SYNOP RH2M (%) 08224 : out of range
Severe: avg_pge=0.9931, expected range: -1.1151 0.7500
BUFR LAND SYNOP RH2M (%) 33246 : out of range
Severe: rms_fgdepar=31.4411, expected range: 0.0000 13.3540
BUFR LAND SYNOP Z (M) 71777 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9723, expected range: -1.0410 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41915 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=604.3960, expected range: 0.0000 174.4102
Severe: avg_pge=0.8841, expected range: -0.0771 0.0923
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 3FDF5 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=26.0378, expected range: -27.7223 37.3935
Severely_persistent: rms_fgdepar=26.2688, expected range: -27.7088 37.4412
Severely_persistent: avg_pge=0.9297, expected range: -1.3351 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) D5HE7 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=568.3948, expected range: -231.0901 531.5758
Severely_persistent: rms_fgdepar=568.3948, expected range: 0.0000 519.6945
Severely_persistent: avg_pge=0.8188, expected range: -0.8564 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7HG7 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=1155.0808, expected range: 463.5398 1111.1607
Severely_persistent: rms_fgdepar=1155.0808, expected range: 463.5398 1111.1607
BUFR SHIP SYNOP SURFACE PRESSURE (PA) SJA4RSK : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8931, expected range: -1.3605 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9V9287 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=21.0631, expected range: -7.2844 20.4451
Severe: rms_fgdepar=21.0631, expected range: 0.0000 20.4101
Severe: avg_pge=0.9220, expected range: -0.8427 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) V7HG7 : out of range
Severe: avg_pge=0.8974, expected range: -1.2671 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 4801670 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8659, expected range: 0.6432 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4601681 : out of range
Severe: avg_pge=0.8675, expected range: -1.4465 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 3301606 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=564.7293, expected range: 0.0000 145.3030
DRIFTING BUOYS SURFACE PRESSURE (PA) 5601637 : out of range
Severe: rms_fgdepar=530.3103, expected range: 0.0000 709.6544
Severe: avg_pge=0.8933, expected range: -1.0314 0.7500
metar
METAR SURFACE PRESSURE (PA) VABJ : out of range
Severe: rms_fgdepar=314.1293, expected range: 0.0000 106.8890
snow
BUFR LAND SYNOP SNOW (CM) _MI16E6F : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=54.8000, expected range: 45.9471 60.5969
BUFR LAND SYNOP SNOW (CM) _MI16E6F : out of range
10 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=54.9630, expected range: 47.2336 61.0086
BUFR LAND SYNOP SNOW (CM) _MI11395 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=34.7467, expected range: 3.2720 7.8342
t2m
METAR 2M TEMPERATURE (K) FKKU : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=18.6843, expected range: -2.4932 22.6019
Severely_persistent: rms_fgdepar=18.6843, expected range: 0.0000 22.5264
METAR 2M TEMPERATURE (K) KLFI : out of range
Severe: rms_fgdepar=10.2912, expected range: 0.0000 4.3554
METAR 2M TEMPERATURE (K) KWRI : out of range
Severe: avg_fgdepar=-14.3211, expected range: -2.6410 1.1728
Severe: rms_fgdepar=14.3211, expected range: 0.0000 5.1419
METAR 2M TEMPERATURE (K) KISO : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=11.6926, expected range: 0.7047 3.5151
METAR 2M TEMPERATURE (K) ENBS : out of range
Severe: avg_fgdepar=13.9081, expected range: -0.7109 1.6555
Severe: rms_fgdepar=14.1023, expected range: 0.0000 2.0367
METAR 2M TEMPERATURE (K) UMMS : out of range
Severe: rms_fgdepar=11.2525, expected range: 0.7780 4.6957
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI15039 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-12.6066, expected range: -7.9741 2.9434
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI15039 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=12.6948, expected range: 0.0000 10.3997
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=14.4241, expected range: 13.8366 21.6847
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI1200D : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-13.7353, expected range: -6.1429 2.9060
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI1200D : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=13.7899, expected range: 0.0000 8.6949
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 72764 : out of range
Severe: rms_fgdepar=30.5441, expected range: 0.0000 17.0782
MANUAL LAND SYNOP RH2M (%) 82361 : out of range
Severe: rms_fgdepar=32.7960, expected range: 0.0000 17.0869
MANUAL LAND SYNOP RH2M (%) 83583 : out of range
Severe: rms_fgdepar=37.4476, expected range: 0.0000 20.5081
METAR RH2M (%) KRDM : out of range
Severe: rms_fgdepar=31.3410, expected range: 0.2399 14.1680
BUFR LAND SYNOP RH2M (%) _MI1517C : out of range
Severe: rms_fgdepar=34.3682, expected range: 0.0000 18.7686