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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-08-06 12:00

amsua
NOAA 19 AMSUA ALL SKY RADIANCES CHANNEL 8 : out of range
1 times in the last 10 days for at least one item
Severe: avg_biascorr=0.0528, expected range: -0.5367 -0.2586
cris
All NPP CRIS ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 14946.23 15887.95
atms
All NPP ATMS ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 11508.47 13972.58
gpsro
SPIRE-LEMUR-3U GPSRO SETTING HEIGHT 46-48 KM : out of range
Severe: stdev_norm_fgdepar=0.9835, expected range: 0.5078 0.7719
Atmospheric Motion Vector
All AQUA MODIS CLEAR WV ALL LAYERS Global : all data missing
Severely_persistent: obs_number=0, expected range: 66.57 1138.60
All NPP VIIRS AMV IR ALL LAYERS Global : all data missing
Severely_persistent: obs_number=0, expected range: 31.65 1540.22
Geostationary CSR
GOES-17 GEOS RADIANCES CHANNEL 2 : out of range
Slight: stdev_fgdepar=1.2308, expected range: 0.8976 1.1335
Radiosondes
LAND TEMP Q (G/KG) 35700 PRESSURE LAYER 900-1200 (HPA) : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=6.7989, expected range: 1.7546 8.5172
Severely_persistent: rms_fgdepar=6.8778, expected range: 1.8971 8.6899
LAND TEMP Q (G/KG) 38341 PRESSURE LAYER 900-1200 (HPA) : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=9.1799, expected range: -4.8988 19.2303
Severely_persistent: rms_fgdepar=9.1938, expected range: 0.0000 19.2862
All HIGH RESO SEA TEMP ALL LAYERS North West Pacific : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 311.82
LAND TEMP TEMPERATURE (K) 32389 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=6.2727, expected range: 0.0000 2.9661
LAND TEMP TEMPERATURE (K) 24266 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_fgdepar=9.2620, expected range: -2.8707 3.0236
Severe: rms_fgdepar=9.6543, expected range: 0.0000 2.9171
Severe: avg_pge=0.9075, expected range: -0.4958 0.6976
LAND TEMP TEMPERATURE (K) 32389 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_fgdepar=-11.6789, expected range: -2.3142 2.6815
Severe: avg_pge=0.9254, expected range: -0.3058 0.5321
LAND TEMP TEMPERATURE (K) 38064 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=9.4792, expected range: 0.0000 4.0175
LAND TEMP WIND VECTOR DIFF (M/S) 37259 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=18.4343, expected range: 0.0000 9.5374
LAND TEMP WIND VECTOR DIFF (M/S) 37259 PRESSURE LAYER 300-600 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8225, expected range: -0.2796 0.4981
LAND TEMP WIND VECTOR DIFF (M/S) 48615 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=15.1946, expected range: 0.0000 8.4363
Severe: avg_pge=0.8201, expected range: -0.8800 0.7500
LAND TEMP Q (G/KG) 24266 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=2.5706, expected range: 0.0000 1.4145
Severe: avg_pge=0.9241, expected range: -0.0141 0.0272
LAND TEMP Q (G/KG) 40811 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.0278, expected range: 0.0000 3.8846
HIGH RESO LAND TEMP TEMPERATURE (K) 58665 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=7.3239, expected range: 0.4076 2.1311
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 72659 PRESSURE LAYER 300-60 : out of range
Severe: rms_fgdepar=16.7771, expected range: 0.0000 7.5924
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 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: 37.7686 258.2603
HIGH RESO LAND TEMP Q (G/KG) 53614 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=3.9721, expected range: 0.0000 2.0571
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=386.0000, expected range: 280.0953 295.1547
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 88 : all data missing
Severe: obs_number=0, expected range: 51.26 221.24
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (3 pressure layers affected : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=170.0000, expected range: 86.3653 104.4918
amdar
WIGOS AMDAR Q (G/KG) BSTXQVBA PRESSURE LAYER 900-1200 (HPA) : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-7.9561, expected range: -12.8725 1.8203
Severely_persistent: rms_fgdepar=8.0077, expected range: 0.0000 12.5743
Severely_persistent: avg_pge=0.8072, expected range: -1.0102 0.7500
TAMDAR WIND VECTOR DIFF (M/S) 00005178 PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=21.9096, expected range: -0.5066 32.7102
Severe: rms_fgdepar=21.9693, expected range: 0.0000 32.8108
WIGOS AMDAR TEMPERATURE (K) EU5324 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=6.8104, expected range: 0.0000 2.7458
WIGOS AMDAR TEMPERATURE (K) EU5324 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=-11.4702, expected range: -5.7914 5.1379
Severe: avg_pge=0.9637, expected range: -1.2203 0.7500
WIGOS AMDAR TEMPERATURE (K) EU8525 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9020, expected range: -1.1311 0.7500
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : missing
Severe: obs_number=0.0000, expected range: 0.0000 1245.9206
Severe: obs_number=0.0000, expected range: 0.0000 1245.9206
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 43128 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=25.7713, expected range: -2.5862 8.1130
Severe: rms_fgdepar=33.1263, expected range: 0.0000 8.8654
synop
AUTOMATIC LAND SYNOP RH2M (%) 18156 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9668, expected range: -1.2920 0.7500
MANUAL LAND SYNOP RH2M (%) 67229 : out of range
Severe: avg_pge=0.9965, expected range: -0.7212 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 41700 : out of range
Severe: avg_fgdepar=-595.0712, expected range: -296.5942 182.2663
Severe: rms_fgdepar=820.9173, expected range: 0.0000 276.6386
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 78866 : out of range
Severe: rms_fgdepar=320.0400, expected range: 0.0000 76.1879
BUFR LAND SYNOP RH2M (%) 86920 : out of range
Severe: rms_fgdepar=31.2695, expected range: 2.2849 15.0634
BUFR LAND SYNOP RH2M (%) 29430 : out of range
Severe: rms_fgdepar=36.6226, expected range: 0.0000 19.6595
BUFR LAND SYNOP RH2M (%) 72672 : out of range
Severe: rms_fgdepar=30.0913, expected range: 0.0000 14.2482
BUFR LAND SYNOP RH2M (%) 27523 : out of range
Severe: rms_fgdepar=41.4320, expected range: 0.0000 15.3287
Severe: avg_pge=0.9799, expected range: 0.0011 0.0047
BUFR LAND SYNOP RH2M (%) 48053 : out of range
Severe: avg_pge=0.8943, expected range: -0.3028 0.3649
BUFR LAND SYNOP RH2M (%) 35594 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=53.2001, expected range: -24.5290 20.2164
Severe: rms_fgdepar=53.2001, expected range: 0.0000 22.9316
Severe: avg_pge=0.9953, expected range: -0.0412 0.0529
BUFR LAND SYNOP RH2M (%) 72666 : out of range
Severe: rms_fgdepar=31.6935, expected range: 0.0000 11.3139
BUFR LAND SYNOP RH2M (%) 38008 : out of range
Severe: rms_fgdepar=39.1063, expected range: 0.0000 14.4474
BUFR LAND SYNOP SURFACE PRESSURE (PA) 26258 : out of range
Severe: rms_fgdepar=369.3818, expected range: 0.0000 74.0733
Severe: avg_pge=0.8068, expected range: 0.0000 0.0000
ship
SHIP SURFACE PRESSURE (PA) WTEK : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-788.9418, expected range: -938.8768 675.2274
Severely_persistent: rms_fgdepar=788.9418, expected range: 0.0000 753.1468
Severely_persistent: avg_pge=0.9210, expected range: -1.1940 0.7500
ABBREVIATED SHIP SURFACE PRESSURE (PA) WTEK : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-709.7490, expected range: -994.1773 750.5877
Severely_persistent: rms_fgdepar=711.8536, expected range: 0.0000 737.0505
Severely_persistent: avg_pge=0.9098, expected range: -0.8004 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3E3594 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-514.8102, expected range: -1034.7261 221.4974
Severely_persistent: rms_fgdepar=514.8102, expected range: 0.0000 1034.7261
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WZE4539 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=677.5977, expected range: -1057.9331 1450.5531
Severely_persistent: rms_fgdepar=677.5977, expected range: -1448.3177 1923.3491
Severely_persistent: avg_pge=0.8280, expected range: -1.3810 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRNU9 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=1270.0930, expected range: 881.9027 1456.8725
Severely_persistent: rms_fgdepar=1270.0930, expected range: 887.6294 1452.9030
BUFR SHIP SYNOP SURFACE PRESSURE (PA) PJWM : out of range
24 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=900.6204, expected range: 117.0785 1232.5835
Severely_persistent: rms_fgdepar=900.6204, expected range: 117.0785 1232.5835
Severely_persistent: avg_pge=0.8840, expected range: 0.5490 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) TBWUK50 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=666.5992, expected range: 95.1238 664.3609
Severe: rms_fgdepar=754.3571, expected range: 95.1238 664.3609
Severe: avg_pge=0.8053, expected range: 0.3752 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) D5LH3 : out of range
Severe: avg_pge=0.8161, expected range: -0.3789 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) A8PQ4 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=691.7614, expected range: -406.6132 876.0171
Severe: rms_fgdepar=691.7614, expected range: 0.0000 820.4988
Severe: avg_pge=0.8611, expected range: -0.6729 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7ZZ6 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-776.2755, expected range: -1065.1958 792.7836
Severe: rms_fgdepar=776.5107, expected range: 0.0000 950.7347
Severe: avg_pge=0.8893, expected range: -1.4368 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) TBWUK87 : out of range
Severe: rms_fgdepar=418.3317, expected range: 0.0000 221.7734
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6NR7 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=778.2308, expected range: -309.3645 234.3762
Severe: rms_fgdepar=778.7208, expected range: 0.0000 212.6227
Severe: avg_pge=0.9245, expected range: -0.5306 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V9288 : out of range
Severe: rms_fgdepar=587.0494, expected range: 0.0000 350.1044
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9V8208 : out of range
Severe: rms_fgdepar=16.5141, expected range: 0.0000 8.2088
Severe: avg_pge=0.8982, expected range: -0.5508 0.7500
buoy
DRIBU WIND VECTOR DIFF (M/S) 23451 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9077, expected range: 0.1501 0.7500
DRIBU WIND VECTOR DIFF (M/S) 23454 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9204, expected range: -0.6626 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4602500 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-514.3595, expected range: -692.0830 593.7798
Severe: rms_fgdepar=541.3492, expected range: 0.0000 883.6792
Severe: avg_pge=0.8699, expected range: -1.3556 0.7500
metar
METAR SURFACE PRESSURE (PA) OTBH : out of range
Severe: rms_fgdepar=312.8871, expected range: 0.0000 99.9700
snow
MANUAL LAND SYNOP SNOW (CM) 87803 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-63.1994, expected range: -74.6795 -58.7906
Severely_persistent: rms_fgdepar=63.1994, expected range: 58.7906 74.6795
BUFR LAND SYNOP SNOW (CM) _MF1EB15 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-772.4732, expected range: -773.7092 -772.0137
BUFR LAND SYNOP SNOW (CM) _MF1EB15 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=772.4735, expected range: 772.0139 773.7092
BUFR LAND SYNOP SNOW (CM) 87803 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-63.1994, expected range: -74.7431 -57.7991
Severe: rms_fgdepar=63.1994, expected range: 57.7991 74.7431
t2m
MANUAL LAND SYNOP 2M TEMPERATURE (K) 62414 : out of range
Severe: rms_fgdepar=10.0506, expected range: 0.0000 2.0408
MANUAL LAND SYNOP 2M TEMPERATURE (K) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=92.0000, expected range: 137.4665 141.9779
METAR 2M TEMPERATURE (K) VTUI : out of range
Severe: rms_fgdepar=10.3350, expected range: 0.0000 5.0546
METAR 2M TEMPERATURE (K) OIGK : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-12.5212, expected range: -13.5805 -4.4540
Severe: rms_fgdepar=12.7342, expected range: 5.2483 13.6249
METAR 2M TEMPERATURE (K) CYIK : out of range
Severe: rms_fgdepar=12.4837, expected range: 0.0000 4.1937
LAND TEMP 2M TEMPERATURE (K) 38064 : out of range
Severe: rms_fgdepar=11.1903, expected range: 0.0000 6.2056
BUFR LAND SYNOP 2M TEMPERATURE (K) 80010 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=12.0426, expected range: 2.1030 16.4347
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13804 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=18.0207, expected range: -4.6403 25.1863
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13804 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=18.1367, expected range: 1.2872 22.3521
BUFR LAND SYNOP 2M TEMPERATURE (K) 62414 : out of range
Severe: rms_fgdepar=10.0937, expected range: 0.0000 2.0058
rh2m
MANUAL LAND SYNOP RH2M (%) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=90.0000, expected range: 131.8356 141.0533
METAR RH2M (%) MMLP : out of range
Severe: rms_fgdepar=32.1523, expected range: 0.6646 18.0233
All BUFR LAND SYNOP WMO BLOCK 66 : all data missing
Severe: obs_number=0, expected range: 39.16 177.54