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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-08-10 00:00

iasi
METOP-A/IASI RADIANCES (275 channels affected) : out of range
Severe: obs_number=119498.0000, expected range: 17837.7390 26736.3474
cris
NPP/CRIS RADIANCES (120 channels affected) : out of range
Severe: avg_biascorr=0.2397, expected range: 0.1141 0.1161
NPP/CRIS RADIANCES (174 channels affected) : out of range
Severe: obs_number=18895.0000, expected range: 9627.0954 9749.0317
NPP/CRIS RADIANCES (32 channels affected) : out of range
Severe: stdev_fgdepar=3.3656, expected range: 0.1915 0.2784
NPP/CRIS RADIANCES (19 channels affected) : out of range
Severe: avg_fgdepar=-0.7655, expected range: -0.1188 0.1434
mhs
ALLSKY NOAA-19/MHS RADIANCES CHANNEL 1 : out of range
Considerable: obs_number=27177.0000, expected range: 28589.4872 32042.0128
ALLSKY NOAA-19/MHS RADIANCES CHANNEL 5 : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=26736.0000, expected range: 28167.8700 31639.4633
ALLSKY NOAA-19/MHS RADIANCES CHANNEL 2 : out of range
Slight: obs_number=20055.0000, expected range: 20753.4034 26298.9209
atms
NOAA20/ATMS RADIANCES CHANNEL 7 : out of range
Considerable: stdev_fgdepar=0.1119, expected range: 0.0784 0.1044
ssmis
DMSP-18/SSMIS RADIANCES CHANNEL 6 : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=1643.0000, expected range: 372.0583 1351.7935
DMSP-18/SSMIS RADIANCES CHANNEL 7 : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=1646.0000, expected range: 377.2494 1322.8126
DMSP-18/SSMIS RADIANCES CHANNEL 10 : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=1629.0000, expected range: 367.7243 1340.3012
DMSP-18/SSMIS RADIANCES CHANNEL 11 : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=1631.0000, expected range: 367.6067 1297.8109
Radiosondes
LAND TEMP TEMPERATURE (K) 30372 PRESSURE LAYER 900-1200 (HPA) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8380, expected range: -1.1231 0.7500
HIGH RESO LAND TEMP TEMPERATURE (K) (4 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0000, expected range: 0.1196 0.2231
Severe: obs_number=188.0000, expected range: 254.4825 308.3410
LAND TEMP TEMPERATURE (K) 43295 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=26.8080, expected range: 0.0000 4.6061
Severe: avg_pge=0.8919, expected range: -0.1057 0.1891
LAND TEMP TEMPERATURE (K) 57083 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=8.6989, expected range: 0.0000 2.3754
LAND TEMP WIND VECTOR DIFF (M/S) 43295 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=24.0156, expected range: 0.9163 11.1391
LAND TEMP WIND VECTOR DIFF (M/S) 43353 PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=22.1495, expected range: 0.0000 9.2643
Severe: avg_pge=0.9177, expected range: -0.6215 0.7500
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (4 pressure layers affected : out of range
Severe: obs_number=188.0000, expected range: 254.4825 308.3410
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=108.0000, expected range: 124.5805 154.0862
amdar
WIGOS AMDAR Q (G/KG) XWGY0OZA PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=1.0000, expected range: -1.2328 0.7500
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 10410 PRESSURE LAYER 600-900 : out of range
Severe: avg_pge=0.8756, expected range: -0.6911 0.7500
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 97260 PRESSURE LAYER 900-1200 (HPA) : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8113, expected range: 0.5768 0.7500
LAND PILOT WIND VECTOR DIFF (M/S) 42647 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=17.2378, expected range: 0.0000 8.9422
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: obs_number=1466.0000, expected range: 1572.9249 1697.1862
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43133 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9110, expected range: 0.3010 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42705 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8140, expected range: -0.5778 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42078 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9395, expected range: -0.6688 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42969 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9037, expected range: -1.5213 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 68839 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8095, expected range: -1.4940 0.7500
MANUAL LAND SYNOP RH2M (%) 68619 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9522, expected range: -1.1006 0.7500
MANUAL LAND SYNOP RH2M (%) : out of range
3 times in the last 10 days for at least one item
Severe: obs_number=57.0000, expected range: 58.0000 58.0000
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 67261 : out of range
Severe: avg_pge=0.8648, expected range: -0.6158 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42271 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=381.5539, expected range: 0.0000 266.4158
Severe: avg_pge=0.8218, expected range: -1.0180 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42943 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=368.9744, expected range: 0.0000 287.3759
Severe: avg_pge=0.8407, expected range: -1.1480 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42473 : out of range
Severe: rms_fgdepar=576.8735, expected range: 0.0000 490.5616
Severe: avg_pge=0.8872, expected range: -0.7078 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42104 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8448, expected range: -0.2410 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42737 : out of range
Severe: rms_fgdepar=334.4364, expected range: 0.0000 170.5561
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42588 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8093, expected range: -1.0225 0.7500
MANUAL LAND SYNOP Z (M) 38869 : out of range
Severe: avg_pge=0.9244, expected range: -0.5299 0.6688
BUFR LAND SYNOP RH2M (%) 16261 : out of range
Severe: avg_pge=0.8320, expected range: -0.8464 0.7500
BUFR LAND SYNOP RH2M (%) 72363 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=33.7472, expected range: 0.0000 8.7360
Severe: avg_pge=0.9936, expected range: -0.0004 0.0061
BUFR LAND SYNOP RH2M (%) 72683 : out of range
Severe: rms_fgdepar=36.7047, expected range: 0.0000 8.6892
BUFR LAND SYNOP RH2M (%) 71446 : out of range
Severe: rms_fgdepar=30.2750, expected range: 0.0000 13.6178
BUFR LAND SYNOP RH2M (%) 72776 : out of range
Severe: rms_fgdepar=34.2294, expected range: 0.0000 8.6632
BUFR LAND SYNOP SURFACE PRESSURE (PA) 23383 : out of range
Severe: rms_fgdepar=446.6416, expected range: 0.0000 148.8163
Severe: avg_pge=0.8787, expected range: -0.3838 0.4814
BUFR LAND SYNOP SURFACE PRESSURE (PA) 60177 : out of range
Severe: rms_fgdepar=508.0552, expected range: 0.0000 199.1290
Severe: avg_pge=0.8885, expected range: -0.8133 0.7500
AUTOMATIC LAND SYNOP RH2M (%) : out of range
5 times in the last 10 days for at least one item
Slight: obs_number=922.0000, expected range: 935.1965 1025.0257
Severely_persistent: obs_number=96.0000, expected range: 79.4231 88.5213
ship
AUTOMATIC SHIP SURFACE PRESSURE (PA) VWSK : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8047, expected range: -0.9881 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) 8TAP : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=688.2634, expected range: -382.9854 555.0942
Severely_persistent: avg_pge=0.9203, expected range: -1.2671 0.7500
SHIP SURFACE PRESSURE (PA) 9HJB9 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8164, expected range: -1.1384 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) LF4J : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8655, expected range: 0.1396 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) AMOUK51 : out of range
Severe: rms_fgdepar=334.1028, expected range: 0.0000 96.8625
SHIP SURFACE PRESSURE (PA) 9HA4800 : out of range
Severe: avg_pge=0.8121, expected range: -0.9517 0.7500
SHIP SURFACE PRESSURE (PA) TBWUK31 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=462.9563, expected range: 0.0000 396.5613
Severe: avg_pge=0.8532, expected range: -0.9656 0.7500
SHIP SURFACE PRESSURE (PA) VRNS2 : out of range
Severe: rms_fgdepar=1449.5791, expected range: 0.0000 462.1412
Severe: avg_pge=0.9547, expected range: -1.1870 0.7500
SHIP SURFACE PRESSURE (PA) 9VFL3 : out of range
Severe: rms_fgdepar=405.0907, expected range: 0.0000 314.8119
Severe: avg_pge=0.8343, expected range: -1.0317 0.7500
SHIP SURFACE PRESSURE (PA) TBWUK68 : out of range
Severe: rms_fgdepar=455.7228, expected range: 0.0000 314.8276
Severe: avg_pge=0.8645, expected range: -0.7851 0.7500
SHIP SURFACE PRESSURE (PA) PHET : out of range
Severe: rms_fgdepar=415.6766, expected range: 0.0000 222.8348
Severe: avg_pge=0.8181, expected range: -0.3374 0.5023
SHIP WIND VECTOR DIFF (M/S) ONFW : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9119, expected range: -0.7409 0.7500
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 3100231 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8975, expected range: 0.4126 0.7500
MOORED BUOYS WIND VECTOR DIFF (M/S) 5300056 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9172, expected range: 0.7350 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2201558 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8654, expected range: -1.4133 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2301719 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8845, expected range: 0.1465 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1601579 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8150, expected range: 0.0052 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5401543 : out of range
Severe: rms_fgdepar=326.9183, expected range: 0.0000 153.1560
Severe: avg_pge=0.8104, expected range: -0.5124 0.6842
DRIFTING BUOYS SURFACE PRESSURE (PA) 5501596 : out of range
Severe: rms_fgdepar=404.2471, expected range: 0.0000 150.8111
DRIFTING BUOYS SURFACE PRESSURE (PA) 6301507 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8947, expected range: -1.4577 0.7500
gbrad
GROUND-BASED RADAR WIND VECTOR DIFF (M/S) : out of range
8 times in the last 10 days for at least one item
Slight: obs_number=1102.0000, expected range: 1432.7100 3925.8112
t2m
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
7 times in the last 10 days for at least one item
Severely_persistent: obs_number=114.0000, expected range: 99.7642 104.0136
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 40250 : out of range
Severe: rms_fgdepar=7.6818, expected range: 0.0000 2.1567
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89734 : out of range
2 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8033, expected range: 0.5258 0.9828
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89578 : out of range
3 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8142, expected range: 0.0891 1.1837
MANUAL LAND SYNOP 2M TEMPERATURE (K) 20292 : out of range
Severe: rms_fgdepar=7.2258, expected range: 0.0000 3.1068
MANUAL LAND SYNOP 2M TEMPERATURE (K) 67243 : out of range
Severe: rms_fgdepar=7.4315, expected range: 0.0000 3.1827
MANUAL LAND SYNOP 2M TEMPERATURE (K) 84735 : out of range
Severe: avg_est_pge=0.8422, expected range: -0.3813 1.2534
METAR 2M TEMPERATURE (K) KAMA : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.2130, expected range: 1.4157 3.8759
METAR 2M TEMPERATURE (K) GMMD : out of range
Severe: rms_fgdepar=11.0336, expected range: 0.5356 3.6558
METAR 2M TEMPERATURE (K) UKOH : out of range
Severe: rms_fgdepar=8.1704, expected range: 0.4689 4.7922
METAR 2M TEMPERATURE (K) EEEI : out of range
Severe: rms_fgdepar=8.9416, expected range: 0.0000 3.6104
METAR 2M TEMPERATURE (K) KMUI : out of range
Severe: rms_fgdepar=12.7569, expected range: 0.4303 5.9713
METAR 2M TEMPERATURE (K) KGCK : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.1051, expected range: 1.4843 3.8970
METAR 2M TEMPERATURE (K) LUKK : out of range
Severe: rms_fgdepar=9.0267, expected range: 0.4185 4.7572
METAR 2M TEMPERATURE (K) KINT : out of range
Severe: rms_fgdepar=10.8075, expected range: 0.6887 5.2594
METAR 2M TEMPERATURE (K) KBLV : out of range
Severe: rms_fgdepar=11.0725, expected range: 0.0000 6.1489
LAND TEMP 2M TEMPERATURE (K) 76612 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8014, expected range: -0.5571 1.2579
LAND TEMP 2M TEMPERATURE (K) 04417 : out of range
Severe: avg_est_pge=0.8145, expected range: -0.5048 1.0260
BUFR LAND SYNOP 2M TEMPERATURE (K) 89578 : out of range
3 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8147, expected range: 0.0955 1.1821
rh2m
BUFR LAND SYNOP RH2M (%) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: obs_number=102.0000, expected range: 86.2149 93.2296