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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-09-11 12:00

atms
NPP/ATMS RADIANCES CHANNEL 10 : out of range
Severe: stdev_fgdepar=0.2591, expected range: 0.1070 0.2051
NPP/ATMS RADIANCES CHANNEL 11 : out of range
1 times in the last 10 days for at least one item
Considerable: stdev_fgdepar=0.3174, expected range: 0.1326 0.2562
NOAA20/ATMS RADIANCES CHANNEL 10 : out of range
1 times in the last 10 days for at least one item
Considerable: stdev_fgdepar=0.2565, expected range: 0.0568 0.1914
NOAA20/ATMS RADIANCES CHANNEL 11 : out of range
1 times in the last 10 days for at least one item
Considerable: stdev_fgdepar=0.3008, expected range: 0.0846 0.2384
NOAA20/ATMS RADIANCES (7 channels affected) : out of range
Slight: obs_number=37173.0000, expected range: 37231.1770 37778.5072
Radiosondes
LAND TEMP TEMPERATURE (K) 24688 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9248, expected range: -1.4991 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 31977 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.8703, expected range: 0.7442 6.4642
LAND TEMP WIND VECTOR DIFF (M/S) 29263 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=19.0207, expected range: 0.0000 6.5422
Severe: avg_pge=0.8704, expected range: -0.4963 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 30965 PRESSURE LAYER 600-900 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=17.8130, expected range: 0.0000 8.8358
Severe: avg_pge=0.8529, expected range: -0.8806 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 36096 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=16.4024, expected range: 0.0000 8.1565
Severe: avg_pge=0.8969, expected range: -1.0536 0.7500
LAND TEMP Q (G/KG) 96645 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=9.6882, expected range: 0.0000 6.3659
Severe: avg_pge=0.9995, expected range: -0.0150 0.0269
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 300-600 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: avg_biascorr=0.1930, expected range: 0.0212 0.1112
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) RTWIR5BA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.1397, expected range: 0.0000 8.7752
WIGOS AMDAR WIND VECTOR DIFF (M/S) SL0045 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=46.2739, expected range: 1.1947 4.7980
Severe: avg_pge=0.9447, expected range: -0.0963 0.1969
WIGOS AMDAR TEMPERATURE (K) SL0045 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=11.0943, expected range: 0.1110 1.4502
Severe: avg_pge=0.8333, expected range: -0.0942 0.1972
WIGOS AMDAR Q (G/KG) BWWUOGBA PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9873, expected range: -0.7923 0.7500
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 11718 PRESSURE LAYER 600-900 : out of range
Severe: rms_fgdepar=15.1383, expected range: 0.0000 9.8610
Severe: avg_pge=0.8439, expected range: -0.8552 0.7500
synop
AUTOMATIC LAND SYNOP RH2M (%) 66325 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=1.0000, expected range: 0.1422 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0000, expected range: -6.1095 -2.8026
Considerable: obs_number=57.0000, expected range: 48.1164 54.1189
MANUAL LAND SYNOP RH2M (%) 83851 : out of range
Severe: rms_fgdepar=39.7646, expected range: 0.0000 26.6267
Severe: avg_pge=0.8743, expected range: -0.0023 0.0093
MANUAL LAND SYNOP RH2M (%) 40882 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8279, expected range: -1.4035 0.7500
MANUAL LAND SYNOP RH2M (%) 83363 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9967, expected range: -0.8846 0.7500
MANUAL LAND SYNOP RH2M (%) 42174 : out of range
Severe: avg_pge=0.9812, expected range: -0.0970 0.1228
MANUAL LAND SYNOP RH2M (%) 82984 : out of range
Severe: rms_fgdepar=20.5694, expected range: 0.0000 9.9842
MANUAL LAND SYNOP RH2M (%) 40016 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=1.0000, expected range: -1.7579 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 76220 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=593.5368, expected range: 0.0000 202.9401
Severe: avg_pge=0.8713, expected range: -1.3445 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42452 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=658.3004, expected range: 0.0000 344.5128
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 76113 : out of range
Severe: avg_pge=0.8283, expected range: -0.7134 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42523 : out of range
Severe: avg_pge=0.8653, expected range: -1.1251 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40634 : out of range
Severe: rms_fgdepar=1063.3395, expected range: 0.0000 311.6004
Severe: avg_pge=0.9464, expected range: -0.4950 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42408 : out of range
Severe: avg_pge=0.8183, expected range: -1.2603 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42469 : out of range
Severe: rms_fgdepar=324.5611, expected range: 37.5029 288.4075
Severe: avg_pge=0.8060, expected range: -0.7287 0.7500
BUFR LAND SYNOP RH2M (%) 72640 : out of range
Severe: rms_fgdepar=34.3671, expected range: 0.0000 14.2127
BUFR LAND SYNOP RH2M (%) 81788 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9833, expected range: -0.1190 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48381 : out of range
Severe: rms_fgdepar=527.5917, expected range: 0.0000 291.7626
BUFR LAND SYNOP SURFACE PRESSURE (PA) 08352 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=564.2615, expected range: 0.0000 190.3425
Severe: avg_pge=0.9301, expected range: -1.1370 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94962 : out of range
Severe: avg_pge=0.8242, expected range: -1.0587 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 08024 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=511.9228, expected range: 0.0000 100.0496
Severe: avg_pge=0.9298, expected range: -0.2036 0.2786
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48064 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8297, expected range: -0.2257 0.7500
BUFR LAND SYNOP Z (M) 08095 : out of range
Severe: avg_pge=0.9697, expected range: -0.0657 0.0916
MANUAL LAND SYNOP RH2M (%) : out of range
5 times in the last 10 days for at least one item
Considerable: obs_number=90.0000, expected range: 106.8231 140.0004
Severely_persistent: obs_number=65.0000, expected range: 66.0000 66.0000
ship
AUTOMATIC SHIP WIND VECTOR DIFF (M/S) 62146 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8276, expected range: -0.8207 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) 41064 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8782, expected range: -1.3133 0.7500
SHIP SURFACE PRESSURE (PA) 9V9498 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8466, expected range: -1.2727 0.7500
SHIP SURFACE PRESSURE (PA) BPBC : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8305, expected range: -0.6252 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) LF4J : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9152, expected range: 0.3615 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) 44058 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8099, expected range: -0.3166 0.7500
SHIP SURFACE PRESSURE (PA) TBWUK32 : out of range
Severe: avg_pge=0.8949, expected range: -0.9151 0.7500
SHIP SURFACE PRESSURE (PA) WDJ2573 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8575, expected range: -0.5537 0.7500
SHIP SURFACE PRESSURE (PA) 3EBL5 : out of range
Severe: rms_fgdepar=419.8261, expected range: 0.0000 183.0661
Severe: avg_pge=0.8531, expected range: -0.5353 0.6848
SHIP SURFACE PRESSURE (PA) VRIC6 : out of range
Severe: avg_pge=0.8544, expected range: -0.9573 0.7500
SHIP SURFACE PRESSURE (PA) 9V9408 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8508, expected range: -1.0729 0.7500
SHIP SURFACE PRESSURE (PA) C6SD9 : out of range
Severe: rms_fgdepar=497.5761, expected range: 0.0000 276.7019
buoy
MOORED BUOYS SURFACE PRESSURE (PA) 6101001 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8707, expected range: -0.4103 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4401575 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=688.3346, expected range: 0.0000 117.4338
Severe: avg_pge=0.9274, expected range: -0.4211 0.4821
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
7 times in the last 10 days for at least one item
Severe: avg_biascorr=-1.7945, expected range: 0.0000 0.0000
Slight: obs_number=8627.0000, expected range: 8974.4891 10173.9227
metar
METAR SURFACE PRESSURE (PA) OIIS : out of range
Severe: rms_fgdepar=384.1798, expected range: 0.0000 143.1387
AUTOMATIC METAR SURFACE PRESSURE (PA) KMHE : out of range
Severe: rms_fgdepar=318.7795, expected range: 0.0000 148.0546
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 11927 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=9.0999, expected range: 0.0000 3.4962
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=222.0000, expected range: 270.3202 310.8377
MANUAL LAND SYNOP 2M TEMPERATURE (K) 40080 : out of range
Severe: rms_fgdepar=7.4411, expected range: 0.0000 3.4419
MANUAL LAND SYNOP 2M TEMPERATURE (K) 83942 : out of range
Severe: rms_fgdepar=10.5246, expected range: 0.0000 3.2071
MANUAL LAND SYNOP 2M TEMPERATURE (K) 71043 : out of range
Severe: rms_fgdepar=7.3399, expected range: 0.0000 3.9113
METAR 2M TEMPERATURE (K) OIGK : out of range
3 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8043, expected range: 0.3651 0.9481
METAR 2M TEMPERATURE (K) KGYY : out of range
Severe: rms_fgdepar=7.9159, expected range: 0.0000 4.5194
LAND TEMP 2M TEMPERATURE (K) 56029 : out of range
4 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8516, expected range: -0.3252 1.4307
BUFR LAND SYNOP 2M TEMPERATURE (K) 86979 : out of range
Severe: rms_fgdepar=7.2817, expected range: 0.0000 4.0723
rh2m
BUFR LAND SYNOP RH2M (%) : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=526.0000, expected range: 654.8126 896.1348