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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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

saphir
All ALLSKY SAPHIR RADIANCES ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 1600.08 22704.98
atms
NPP/ATMS RADIANCES CHANNEL 11 : out of range
2 times in the last 10 days for at least one item
Severe: stdev_fgdepar=0.3238, expected range: 0.1326 0.2562
NPP/ATMS RADIANCES CHANNEL 10 : out of range
1 times in the last 10 days for at least one item
Considerable: stdev_fgdepar=0.2531, expected range: 0.1070 0.2051
NOAA20/ATMS RADIANCES CHANNEL 10 : out of range
2 times in the last 10 days for at least one item
Considerable: stdev_fgdepar=0.2276, expected range: 0.0568 0.1914
NOAA20/ATMS RADIANCES CHANNEL 11 : out of range
2 times in the last 10 days for at least one item
Considerable: stdev_fgdepar=0.3030, expected range: 0.0846 0.2384
Radiosondes
HIGH RESO LAND TEMP TEMPERATURE (K) (3 pressure layers affected) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: obs_number=389.0000, expected range: 527.3973 652.7204
LAND TEMP WIND VECTOR DIFF (M/S) 32477 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.7277, expected range: 0.0000 10.8789
Severe: avg_pge=0.8508, expected range: -0.5092 0.7431
HIGH RESO LAND TEMP TEMPERATURE (K) 72562 PRESSURE LAYER 900-1200 (HPA : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.2458, expected range: 0.0000 4.0936
Severe: avg_pge=0.9403, expected range: -0.4942 0.6310
HIGH RESO SEA TEMP Q (G/KG) PRESSURE LAYER 0-300 (HPA) : missing
1 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 0.0000 203.8823
amdar
AMDAR TEMPERATURE (K) JP9Z58WZ (3 pressure layers affected) : out of range
Severe: rms_fgdepar=10.4506, expected range: 0.0000 1.6914
Severe: avg_pge=0.8895, expected range: -0.0526 0.0610
AMDAR WIND VECTOR DIFF (M/S) THA491 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=19.5168, expected range: 0.0000 9.4399
WIGOS AMDAR WIND VECTOR DIFF (M/S) OBNWPSBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=26.3487, expected range: 0.0000 11.1063
Severe: avg_pge=0.8797, expected range: -0.3528 0.4888
WIGOS AMDAR WIND VECTOR DIFF (M/S) Z0TYR4JA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.2105, expected range: 0.0000 9.0972
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 89799 : out of range
Severe: rms_fgdepar=468.8796, expected range: 0.0000 221.1686
Severe: avg_pge=0.8686, expected range: -0.4100 0.5028
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=0.8331, expected range: -0.9044 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42711 : out of range
Severe: avg_pge=0.8759, expected range: -1.0881 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 31102 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=562.0671, expected range: 0.0000 113.0282
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42523 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8922, expected range: -1.3224 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 17135 : out of range
Severe: rms_fgdepar=412.5928, expected range: 0.0000 94.5494
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 86255 : out of range
Severe: avg_pge=0.8107, expected range: -1.1906 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 89066 : out of range
Severe: rms_fgdepar=388.9094, expected range: 0.0000 200.1125
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42807 : out of range
Severe: rms_fgdepar=321.3722, expected range: 0.0000 126.7975
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42408 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8270, expected range: -1.1181 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43309 : out of range
Severe: avg_pge=0.8484, expected range: -0.7901 0.7500
MANUAL LAND SYNOP RH2M (%) 87022 : out of range
Severe: rms_fgdepar=52.5054, expected range: 0.0000 17.5594
Severe: avg_pge=0.9964, expected range: -0.0076 0.0144
MANUAL LAND SYNOP RH2M (%) 64463 : out of range
Severe: rms_fgdepar=33.4221, expected range: 0.0000 21.1419
Severe: avg_pge=0.8468, expected range: 0.0004 0.0056
MANUAL LAND SYNOP RH2M (%) 94463 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=39.6307, expected range: 0.0000 16.2845
MANUAL LAND SYNOP RH2M (%) : out of range
6 times in the last 10 days for at least one item
Severe: obs_number=90.0000, expected range: 91.0000 91.0000
Severely_persistent: obs_number=65.0000, expected range: 66.0000 66.0000
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24843 : out of range
Severe: rms_fgdepar=533.4208, expected range: 0.0000 114.9801
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24944 : out of range
Severe: rms_fgdepar=474.2951, expected range: 0.0000 126.3192
BUFR LAND SYNOP SURFACE PRESSURE (PA) 61995 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8770, expected range: -0.8203 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48037 : out of range
Severe: rms_fgdepar=374.4500, expected range: 0.0000 306.9697
Severe: avg_pge=0.8556, expected range: -0.5516 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 30637 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=480.2921, expected range: 0.0000 411.2970
Severe: avg_pge=0.8706, expected range: -1.2441 0.7500
BUFR LAND SYNOP RH2M (%) 94451 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9443, expected range: -1.3277 0.7500
BUFR LAND SYNOP RH2M (%) 72562 : out of range
Severe: rms_fgdepar=29.2702, expected range: 0.0000 19.4418
Severe: avg_pge=0.8740, expected range: -0.0033 0.0098
BUFR LAND SYNOP RH2M (%) 94463 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=44.0160, expected range: 0.0000 13.5974
Severe: avg_pge=0.9206, expected range: -0.7299 0.7500
BUFR LAND SYNOP RH2M (%) 94356 : out of range
Severe: avg_pge=0.9998, expected range: -1.1287 0.7500
BUFR LAND SYNOP RH2M (%) 72578 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=16.8195, expected range: 0.0000 6.9556
BUFR LAND SYNOP RH2M (%) 94498 : out of range
Severe: rms_fgdepar=42.0552, expected range: 0.0000 33.5153
Severe: avg_pge=0.9292, expected range: -0.4184 0.4844
BUFR LAND SYNOP RH2M (%) 94789 : out of range
Severe: rms_fgdepar=37.5104, expected range: 0.0000 19.4061
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
4 times in the last 10 days for at least one item
Considerable: obs_number=547.0000, expected range: 693.0548 898.3897
ship
AUTOMATIC SHIP SURFACE PRESSURE (PA) 41064 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8632, expected range: -1.3091 0.7500
SHIP WIND VECTOR DIFF (M/S) 9V5639 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8270, expected range: 0.2418 0.7500
SHIP SURFACE PRESSURE (PA) 9V9498 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8184, expected range: -1.2762 0.7500
ABBREVIATED SHIP WIND VECTOR DIFF (M/S) V7PQ5 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8332, expected range: -0.2013 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=0.9182, expected range: 0.3291 0.7500
AUTOMATIC SHIP WIND VECTOR DIFF (M/S) 42013 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=16.7899, expected range: 0.0000 6.5949
Severe: avg_pge=0.8854, expected range: -0.7947 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) 44058 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8208, expected range: -0.2949 0.7500
SHIP WIND VECTOR DIFF (M/S) MLTH5 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9144, expected range: -0.7702 0.7500
SHIP WIND VECTOR DIFF (M/S) VRNL8 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8983, expected range: -0.3817 0.7500
SHIP WIND VECTOR DIFF (M/S) VSQL9 : out of range
Severe: rms_fgdepar=30.6510, expected range: 0.0000 8.6844
Severe: avg_pge=0.9518, expected range: -0.6390 0.7500
SHIP SURFACE PRESSURE (PA) 9V2024 : out of range
Severe: avg_pge=0.8314, expected range: -1.1442 0.7500
SHIP SURFACE PRESSURE (PA) 9V9408 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8462, expected range: -1.0975 0.7500
SHIP SURFACE PRESSURE (PA) VRYB8 : out of range
Severe: rms_fgdepar=673.0426, expected range: 0.0000 452.7503
Severe: avg_pge=0.8056, expected range: -0.7580 0.7500
SHIP SURFACE PRESSURE (PA) 9HJF9 : out of range
Severe: rms_fgdepar=377.1258, expected range: 0.0000 206.7207
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-1.6420, expected range: 0.0000 0.0000
Considerable: rms_fgdepar=123.9432, expected range: 10.5844 84.9958
metar
METAR SURFACE PRESSURE (PA) LIEL : out of range
Severe: rms_fgdepar=306.9073, expected range: 0.0000 159.1631
METAR SURFACE PRESSURE (PA) WBGY : out of range
Severe: rms_fgdepar=357.0459, expected range: 0.0000 182.3934
AUTOMATIC METAR SURFACE PRESSURE (PA) KMHE : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=349.5213, expected range: 0.0000 147.6254
snow
MANUAL LAND SYNOP SNOW (CM) : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=0.0431, expected range: -0.0108 0.0114
t2m
AUTOMATIC 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=0.8036, expected range: 0.6713 0.8978
BUFR LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8155, expected range: 0.6744 0.8981
MANUAL LAND SYNOP 2M TEMPERATURE (K) 83780 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.1458, expected range: 0.0000 3.7780
MANUAL LAND SYNOP 2M TEMPERATURE (K) 67881 : out of range
Severe: rms_fgdepar=12.0356, expected range: 0.0000 3.0258
Severe: avg_est_pge=0.8169, expected range: -0.1975 0.2709
MANUAL LAND SYNOP 2M TEMPERATURE (K) 64403 : out of range
Severe: rms_fgdepar=7.1481, expected range: 0.0000 1.7920
MANUAL LAND SYNOP 2M TEMPERATURE (K) 64463 : out of range
Severe: rms_fgdepar=9.3106, expected range: 0.0000 2.8536
MANUAL LAND SYNOP 2M TEMPERATURE (K) 72539 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.2761, expected range: 0.0000 3.3441
METAR 2M TEMPERATURE (K) KADM : out of range
Severe: rms_fgdepar=15.2438, expected range: 0.3385 5.6706
LAND TEMP 2M TEMPERATURE (K) 89009 : out of range
3 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8231, expected range: 0.3329 1.1521
MANUAL LAND SYNOP 2M TEMPERATURE (K) : out of range
3 times in the last 10 days for at least one item
Considerable: obs_number=310.0000, expected range: 336.0548 374.0533
rh2m
MANUAL LAND SYNOP RH2M (%) 60585 : out of range
Severe: rms_fgdepar=20.7886, expected range: 0.0000 11.2338
MANUAL LAND SYNOP RH2M (%) 68006 : out of range
Severe: rms_fgdepar=33.8818, expected range: 0.0000 11.1686
METAR RH2M (%) FYOA : out of range
Severe: rms_fgdepar=31.9987, expected range: 0.0000 17.5473
BUFR LAND SYNOP RH2M (%) : out of range
3 times in the last 10 days for at least one item
Considerable: obs_number=525.0000, expected range: 653.2329 897.8482