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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-09-14 00:00

Atmospheric Motion Vector
METEOSAT-8/AMV CLOUDY WV1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 : out of range
Considerable: obs_number=750.0000, expected range: 0.0000 544.1022
Radiosondes
LAND TEMP TEMPERATURE (K) 40800 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=6.4238, expected range: 0.0000 2.3215
Severe: avg_pge=0.8532, expected range: -0.1587 0.3249
LAND TEMP TEMPERATURE (K) 30673 PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8980, expected range: -1.1554 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 21432 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=16.5293, expected range: 0.0000 6.3048
LAND TEMP WIND VECTOR DIFF (M/S) 21432 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_pge=0.8376, expected range: -0.2832 0.4537
LAND TEMP Q (G/KG) 30715 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.9642, expected range: -0.0099 0.0200
LAND TEMP Q (G/KG) 83566 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=4.1730, expected range: 0.0000 1.8759
HIGH RESO LAND TEMP TEMPERATURE (K) (3 pressure layers affected) : out of range
2 times in the last 10 days for at least one item
Severe: avg_biascorr=0.3485, expected range: 0.0000 0.0000
Severe: obs_number=104.0000, expected range: 256.3522 304.1184
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 300-600 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=2.2741, expected range: 0.0000 1.2727
HIGH RESO LAND TEMP Q (G/KG) (4 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=65.0000, expected range: 182.5755 204.0128
amdar
AMDAR TEMPERATURE (K) JP9Z58WZ (3 pressure layers affected) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=7.9163, expected range: 0.0000 1.8495
AMDAR TEMPERATURE (K) JP9Z58WZ (2 pressure layers affected) : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8589, expected range: -1.0550 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) YIZ123RA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=24.6656, expected range: 0.0000 16.5731
Severe: avg_pge=0.8572, expected range: -0.7060 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) 0G3UNVRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.0407, expected range: 0.0000 7.7696
WIGOS AMDAR WIND VECTOR DIFF (M/S) BTSX1DZA PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=20.7341, expected range: 0.0000 17.3102
WIGOS AMDAR WIND VECTOR DIFF (M/S) BTSX1DZA (2 pressure layers affecte : out of range
Severe: avg_pge=0.8364, expected range: -0.9166 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) JWSYGOZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=23.4203, expected range: 0.0000 12.5538
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 06234 PRESSURE LAYER 300-600 : out of range
Severe: rms_fgdepar=17.7622, expected range: 0.0000 9.7505
Severe: avg_pge=0.8559, expected range: -0.8868 0.7500
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 43063 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=20.9172, expected range: 0.0902 9.5070
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42711 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9239, expected range: -1.1303 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 17135 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=200.2826, expected range: 0.0000 109.8074
MANUAL LAND SYNOP RH2M (%) 40016 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9962, expected range: -1.5644 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=4.9180, expected range: -1.2680 1.3973
BUFR LAND SYNOP RH2M (%) 94439 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=1.0000, expected range: -1.8659 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 82460 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8147, expected range: -0.2035 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42101 : out of range
Severe: rms_fgdepar=453.1516, expected range: 0.0000 237.7818
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 76311 : out of range
Severe: avg_pge=0.8054, expected range: -0.8020 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43021 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8207, expected range: -0.7732 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43042 : out of range
Severe: avg_pge=0.8413, expected range: -1.1518 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42176 : out of range
Severe: rms_fgdepar=311.7182, expected range: 0.0000 207.6731
Severe: avg_pge=0.8232, expected range: -0.6186 0.7157
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 60518 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=808.7790, expected range: 0.0000 228.1292
Severe: avg_pge=0.9272, expected range: -1.1086 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42948 : out of range
Severe: rms_fgdepar=445.7686, expected range: 0.0000 227.4997
Severe: avg_pge=0.8663, expected range: -1.0127 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42488 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8170, expected range: -0.9550 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_biascorr=4.0000, expected range: 0.0000 0.0000
BUFR LAND SYNOP SURFACE PRESSURE (PA) 40362 : out of range
Severe: rms_fgdepar=303.6347, expected range: 0.0000 165.4569
BUFR LAND SYNOP SURFACE PRESSURE (PA) 81982 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9543, expected range: -0.9651 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 30637 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8944, expected range: -1.2932 0.7500
BUFR LAND SYNOP RH2M (%) 70260 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9980, expected range: -1.4169 0.7500
BUFR LAND SYNOP RH2M (%) 71142 : out of range
Severe: rms_fgdepar=38.8225, expected range: 0.0000 25.5529
Severe: avg_pge=0.8816, expected range: -0.0151 0.0228
BUFR LAND SYNOP RH2M (%) 94772 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8595, expected range: -1.0728 0.7500
BUFR LAND SYNOP RH2M (%) 72266 : out of range
Severe: rms_fgdepar=39.0057, expected range: 0.0000 13.3040
BUFR LAND SYNOP RH2M (%) 02468 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=57.9477, expected range: 0.0000 31.7410
Severe: avg_pge=0.9951, expected range: -0.0221 0.0317
ship
AUTOMATIC SHIP WIND VECTOR DIFF (M/S) 42013 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=16.8668, expected range: 0.0000 11.3320
Severely_persistent: avg_pge=0.8960, expected range: -1.1246 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) 44058 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8119, expected range: 0.1099 0.7500
SHIP WIND VECTOR DIFF (M/S) DIXJ2 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8515, expected range: -1.0697 0.7500
SHIP SURFACE PRESSURE (PA) D5HF2 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9045, expected range: 0.1162 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) LF4J : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8480, expected range: 0.3229 0.7500
SHIP WIND VECTOR DIFF (M/S) FMEK : out of range
Severe: rms_fgdepar=23.7650, expected range: 0.0000 7.3926
SHIP SURFACE PRESSURE (PA) 9V5242 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=741.2639, expected range: 0.0000 235.5952
SHIP SURFACE PRESSURE (PA) VRCS2 : out of range
Severe: rms_fgdepar=951.2347, expected range: 0.0000 379.1137
Severe: avg_pge=0.9290, expected range: -1.0421 0.7500
SHIP SURFACE PRESSURE (PA) V7FJ8 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8213, expected range: -0.9268 0.7500
SHIP SURFACE PRESSURE (PA) 9V2779 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8014, expected range: -0.1499 0.7500
SHIP SURFACE PRESSURE (PA) WPTC : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9037, expected range: -0.8874 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=447.0000, expected range: 557.3356 846.6644
BUFR SHIP SYNOP SURFACE PRESSURE (PA) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=904.0000, expected range: 1069.6145 1298.9966
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 4601633 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=523.1428, expected range: 0.0000 463.5236
Severe: avg_pge=0.8898, expected range: -0.9635 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1701536 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8336, expected range: -0.6072 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4802008 : out of range
Severe: rms_fgdepar=555.6974, expected range: 0.0000 183.2260
Severe: avg_pge=0.8991, expected range: -0.1584 0.2064
DRIFTING BUOYS SURFACE PRESSURE (PA) 2201558 : out of range
Severe: avg_pge=0.8005, expected range: -1.0253 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
Severe: avg_biascorr=5.2174, expected range: 0.0000 0.0000
metar
METAR SURFACE PRESSURE (PA) SPME : out of range
Severe: rms_fgdepar=716.5953, expected range: 0.0000 178.1805
METAR SURFACE PRESSURE (PA) KFDK : out of range
Severe: rms_fgdepar=471.4812, expected range: 0.0000 237.9585
METAR SURFACE PRESSURE (PA) LPOV : out of range
Severe: rms_fgdepar=366.3694, expected range: 0.0000 127.3973
snow
MANUAL LAND SYNOP SNOW (CM) : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=0.1517, expected range: -0.0224 0.0253
Severe: rms_fgdepar=3.8404, expected range: -0.4002 0.5268
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8150, expected range: 0.6731 0.8999
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) : out of range
7 times in the last 10 days for at least one item
Severely_persistent: obs_number=222.0000, expected range: 274.4379 308.0469
LAND TEMP 2M TEMPERATURE (K) 89009 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8185, expected range: 0.4381 1.1003
BUFR LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8222, expected range: 0.6750 0.8997
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: obs_number=42.0000, expected range: 96.4539 168.8619
Severely_persistent: rms_fgdepar=8.8295, expected range: 3.7766 6.6316
MANUAL LAND SYNOP 2M TEMPERATURE (K) 17202 : out of range
Severe: rms_fgdepar=7.7079, expected range: 0.0000 4.1485
METAR 2M TEMPERATURE (K) MMMV : out of range
Severe: rms_fgdepar=9.3814, expected range: 0.0000 4.7174
BUFR LAND SYNOP 2M TEMPERATURE (K) 48078 : out of range
Severe: rms_fgdepar=8.4248, expected range: 0.0000 4.1959
rh2m
MANUAL LAND SYNOP RH2M (%) 60585 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=26.3987, expected range: 0.0000 11.4851
MANUAL LAND SYNOP RH2M (%) 72266 : out of range
Severe: rms_fgdepar=32.2918, expected range: 0.0000 18.3393