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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2021-06-05 00:00

iasi
METOP-A IASI RADIANCES CHANNEL 379 : out of range
Considerable: avg_fgdepar=0.0320, expected range: -0.0004 0.0206
METOP-A IASI RADIANCES CHANNEL 354 : out of range
Slight: avg_fgdepar=0.0332, expected range: -0.0044 0.0246
gpsro
All TERRASAR-X GPSRO SETTING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 124.81 1224.46
Atmospheric Motion Vector
All AQUA MODIS CLEAR WV ALL LAYERS Global : all data missing
Severe: obs_number=0, expected range: 280.47 942.41
NPP VIIRS AMV IR WIND VECTOR DIFF (M/S) PRESSURE LAYER 600-900 (HPA) : out of range
Considerable: obs_number=530.0000, expected range: 128.6664 366.3336
Radiosondes
LAND TEMP Q (G/KG) 30715 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.6731, expected range: 0.0000 1.3836
LAND TEMP TEMPERATURE (K) 24343 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=10.0335, expected range: 0.0000 9.3866
LAND TEMP TEMPERATURE (K) 23933 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=8.0574, expected range: 0.0000 2.6157
LAND TEMP TEMPERATURE (K) 23933 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_pge=0.8509, expected range: -0.2925 0.4548
LAND TEMP WIND VECTOR DIFF (M/S) 24343 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=20.1691, expected range: -6.7309 16.7447
Severe: rms_fgdepar=21.8445, expected range: 0.0000 24.9387
Severe: avg_pge=0.8092, expected range: -0.4998 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 21432 (2 pressure layers affected) : out of range
Severe: avg_pge=0.8602, expected range: -1.4661 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 29634 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_fgdepar=32.7104, expected range: -3.5093 10.1202
LAND TEMP WIND VECTOR DIFF (M/S) 29634 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=32.7986, expected range: 0.0000 11.3290
Severe: avg_pge=0.9277, expected range: -0.8455 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 32389 PRESSURE LAYER 600-900 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=15.0318, expected range: 0.0000 8.1727
HIGH RESO LAND TEMP Q (G/KG) 91610 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=5.4779, expected range: 0.0000 2.9686
HIGH RESO LAND TEMP Q (G/KG) 47827 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.4973, expected range: 0.0000 1.6667
HIGH RESO LAND TEMP Q (G/KG) 71811 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.6977, expected range: 0.0000 0.6954
HIGH RESO LAND TEMP Q (G/KG) 10771 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.0340, expected range: 0.0000 0.9920
HIGH RESO LAND TEMP TEMPERATURE (K) 51656 PRESSURE LAYER 900-1200 (HPA : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9095, expected range: -0.0426 0.7500
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 85 : all data missing
Severe: obs_number=0, expected range: 69.02 205.65
LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
Considerable: obs_number=145.0000, expected range: 57.0913 114.9087
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 600-900 (HPA) : out of range
Considerable: obs_number=161.0000, expected range: 66.2609 117.7391
amdar
All TAMDAR ALL LAYERS Alantic Tropical are : all data missing
Severe: obs_number=0, expected range: 0.00 270.83
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU0246 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=17.6005, expected range: 0.0000 5.6516
WIGOS AMDAR Q (G/KG) DVPUOFZA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.0842, expected range: 0.0000 7.3552
MODE-S WIND VECTOR DIFF (M/S) M6705E2 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.5269, expected range: 0.0000 6.6732
ADS-C WIND VECTOR DIFF (M/S) JFQAYHBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=26.9802, expected range: 0.0000 15.1520
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 68918 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8059, expected range: -1.4375 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 68651 : out of range
Severe: avg_fgdepar=62.8568, expected range: -19.3785 10.7498
Severe: rms_fgdepar=62.8568, expected range: 0.0000 19.3918
MANUAL LAND SYNOP RH2M (%) 42935 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=38.5456, expected range: 12.6126 31.6555
Severe: avg_pge=1.0000, expected range: -1.5213 0.7500
MANUAL LAND SYNOP RH2M (%) 38545 : out of range
Severe: avg_pge=0.9780, expected range: -0.7596 0.7500
MANUAL LAND SYNOP RH2M (%) 42137 : out of range
Severe: rms_fgdepar=47.4126, expected range: 0.0000 21.7194
MANUAL LAND SYNOP RH2M (%) 42237 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=45.9017, expected range: 0.0000 26.5925
Severe: avg_pge=0.9060, expected range: -0.0463 0.0667
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 68832 : out of range
Severe: avg_fgdepar=911.6464, expected range: 5.2271 87.3317
Severe: rms_fgdepar=911.6464, expected range: 5.2271 87.3317
Severe: avg_pge=0.9278, expected range: -0.5437 0.6735
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 38613 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8073, expected range: 0.0184 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40025 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=560.3220, expected range: -457.4858 627.3535
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 35777 : out of range
Severe: avg_fgdepar=-622.5090, expected range: -335.3687 394.2262
Severe: rms_fgdepar=636.7240, expected range: 0.0000 365.9395
Severe: avg_pge=0.9042, expected range: -0.9770 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 82588 : out of range
Severe: avg_pge=0.8324, expected range: -1.1652 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83698 : out of range
Severe: avg_pge=0.8476, expected range: -0.9796 0.7500
MANUAL LAND SYNOP Z (M) 38462 : out of range
Severe: avg_pge=0.9036, expected range: -0.7740 0.7500
BUFR LAND SYNOP RH2M (%) 71414 : out of range
Severe: rms_fgdepar=37.1670, expected range: 0.0000 13.5138
BUFR LAND SYNOP RH2M (%) 08224 : out of range
Severe: rms_fgdepar=37.5159, expected range: 0.0000 21.0473
Severe: avg_pge=0.9928, expected range: 0.0001 0.0060
Severe: rms_fgdepar=35.8130, expected range: 0.0000 18.5953
BUFR LAND SYNOP RH2M (%) 16084 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=50.3561, expected range: -25.3801 76.2001
Severe: rms_fgdepar=50.3561, expected range: 0.0000 76.2001
Severe: avg_pge=0.9995, expected range: -1.6492 0.7500
BUFR LAND SYNOP RH2M (%) 72515 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9015, expected range: -1.1905 0.7500
BUFR LAND SYNOP RH2M (%) 16429 : out of range
Severe: avg_pge=0.8160, expected range: -0.1969 0.2504
BUFR LAND SYNOP RH2M (%) 71089 : out of range
Severe: rms_fgdepar=35.2882, expected range: 0.0000 17.4641
BUFR LAND SYNOP RH2M (%) 71289 : out of range
Severe: avg_fgdepar=53.7797, expected range: -34.9691 43.5529
Severe: rms_fgdepar=54.2868, expected range: 0.0000 43.7390
Severe: avg_pge=0.9944, expected range: -0.1415 0.1717
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48566 : out of range
Severe: rms_fgdepar=333.2865, expected range: 0.0000 100.4959
BUFR LAND SYNOP SURFACE PRESSURE (PA) 61277 : out of range
Severe: rms_fgdepar=590.2946, expected range: 0.0000 191.6824
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=488.0000, expected range: 601.2222 617.8889
Considerable: obs_number=184.0000, expected range: 223.3709 238.1846
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 2GNG3 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8513, expected range: -1.4697 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VRSQ6 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8568, expected range: 0.0210 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6DP6 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=747.3810, expected range: -1085.1888 1156.3232
Severely_persistent: rms_fgdepar=747.3810, expected range: 0.0000 982.6023
Severely_persistent: avg_pge=0.8571, expected range: -1.2321 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 3FTI4 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9110, expected range: -0.2461 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9VFV5 : out of range
Severe: rms_fgdepar=17.3783, expected range: 0.0000 13.0804
Severe: avg_pge=0.8884, expected range: -0.7297 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 3EPZ8 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8945, expected range: -0.6878 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) ONKK : out of range
Severe: rms_fgdepar=19.0095, expected range: 0.0000 12.8381
Severe: avg_pge=0.9102, expected range: -0.3655 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6UT5 : out of range
Severe: rms_fgdepar=309.4883, expected range: 0.0000 173.2824
BUFR SHIP SYNOP SURFACE PRESSURE (PA) A8SI8 : out of range
Severe: avg_fgdepar=-548.3423, expected range: -314.6169 304.0081
Severe: rms_fgdepar=786.7661, expected range: 0.0000 224.4518
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 5501733 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=680.2036, expected range: -817.1383 711.2703
Severely_persistent: rms_fgdepar=680.9936, expected range: -640.9890 827.0355
Severely_persistent: avg_pge=0.9079, expected range: -1.2765 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2101660 : out of range
Severe: rms_fgdepar=376.8086, expected range: 0.0000 97.0662
DRIFTING BUOYS SURFACE PRESSURE (PA) 0022958 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8353, expected range: -0.9289 0.7500
metar
METAR SURFACE PRESSURE (PA) FZQA : out of range
Severe: avg_fgdepar=-518.8721, expected range: -247.9566 189.5968
Severe: rms_fgdepar=644.5063, expected range: 0.0000 393.0504
METAR SURFACE PRESSURE (PA) FBSP : out of range
Severe: rms_fgdepar=322.6331, expected range: 0.0000 92.7173
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 68299 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=19.4644, expected range: 13.2718 22.2140
Severely_persistent: rms_fgdepar=19.4644, expected range: 13.3432 22.1821
MANUAL LAND SYNOP 2M TEMPERATURE (K) 42237 : out of range
Severe: rms_fgdepar=10.9621, expected range: 0.3957 6.1623
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 68737 : out of range
Severe: rms_fgdepar=35.9818, expected range: 0.0000 20.4225
LAND TEMP RH2M (%) 22543 : out of range
Severe: rms_fgdepar=38.3643, expected range: 0.0000 17.3814
BUFR LAND SYNOP RH2M (%) 86691 : out of range
Severe: rms_fgdepar=33.1009, expected range: 0.0000 16.2371