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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2021-04-04 12:00

cris
NPP CRIS RADIANCES CHANNEL 83 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0981, expected range: -0.0904 -0.0810
NPP CRIS RADIANCES CHANNEL 110 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0155, expected range: 0.0252 0.0260
NPP CRIS RADIANCES CHANNEL 143 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0721, expected range: -0.0656 -0.0628
NPP CRIS RADIANCES CHANNEL 144 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0987, expected range: -0.0914 -0.0875
NOAA20 CRIS RADIANCES CHANNEL 84 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0618, expected range: 0.0741 0.0830
NOAA20 CRIS RADIANCES CHANNEL 85 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0254, expected range: 0.0322 0.0332
NOAA20 CRIS RADIANCES CHANNEL 141 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0166, expected range: -0.0139 -0.0118
NPP CRIS RADIANCES CHANNEL 88 : out of range
4 times in the last 10 days for at least one item
Considerable: avg_biascorr=-0.0092, expected range: -0.0039 0.0057
gpsro
All COSMIC2-E4 GPSRO RISING ALL HEIGHTS Global : all data missing
Severe: obs_number=0, expected range: 1041.47 2550.65
resat
METOP-B GOME-2 OZONE, TOP PRESSURE LAYER 12-13 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: obs_number=31295.0000, expected range: 51012.7900 58958.1512
Radiosondes
LAND TEMP Q (G/KG) 78970 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=3.6335, expected range: 0.1994 2.0319
HIGH RESO LAND TEMP Q (G/KG) 07761 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=4.0251, expected range: 0.0350 1.8411
HIGH RESO LAND TEMP Q (G/KG) (2 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=180.0000, expected range: 267.6863 279.5637
amdar
TAMDAR WIND VECTOR DIFF (M/S) 00005178 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=20.4310, expected range: 2.8603 18.9900
Severe: rms_fgdepar=20.4310, expected range: 4.0844 19.8045
ADS-C WIND VECTOR DIFF (M/S) GURICNJA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=17.1872, expected range: 0.0000 8.2398
ADS-C WIND VECTOR DIFF (M/S) 4RYAPWRA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=21.1628, expected range: 0.0000 22.0401
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 02941 PRESSURE LAYER 900-1200 : out of range
Severe: rms_fgdepar=16.8627, expected range: 0.0000 11.9191
Severe: avg_pge=0.9026, expected range: -0.3709 0.7500
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HPA) : out of range
Considerable: obs_number=284.0000, expected range: 309.6513 358.3487
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 17928 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=573.0717, expected range: 53.2984 909.7956
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42468 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-762.1124, expected range: -1421.9628 1453.0653
Severely_persistent: rms_fgdepar=762.1124, expected range: -806.9584 1194.7131
Severely_persistent: avg_pge=0.9196, expected range: -1.8811 0.7500
MANUAL LAND SYNOP RH2M (%) 42961 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8941, expected range: -1.5037 0.7500
MANUAL LAND SYNOP RH2M (%) 42963 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=51.7622, expected range: 34.8018 59.2393
Severely_persistent: rms_fgdepar=51.7622, expected range: 34.8018 59.2393
MANUAL LAND SYNOP RH2M (%) 42473 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=52.0563, expected range: -0.8268 82.9621
Severely_persistent: rms_fgdepar=52.0563, expected range: 0.0000 82.9621
Severely_persistent: avg_pge=1.0000, expected range: 0.4602 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 29471 : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=606.2415, expected range: -776.1247 826.7021
Severely_persistent: rms_fgdepar=606.2415, expected range: -1279.5361 1651.3727
Severely_persistent: avg_pge=0.9021, expected range: -1.8806 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 13464 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8408, expected range: -1.3641 0.7500
BUFR LAND SYNOP RH2M (%) 86850 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-52.1054, expected range: -74.0407 -34.1494
Severely_persistent: rms_fgdepar=52.6880, expected range: 34.6600 74.1117
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 18152 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8744, expected range: -1.0803 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 17847 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8786, expected range: -1.1444 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 93498 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=455.8654, expected range: 0.0000 244.2415
Severe: avg_pge=0.8983, expected range: -1.0284 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40001 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=360.3876, expected range: 0.0000 185.1737
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 38944 : out of range
Severe: rms_fgdepar=567.1170, expected range: 0.0000 102.5763
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 82145 : out of range
Severe: avg_fgdepar=-548.0949, expected range: -148.2879 62.8039
Severe: rms_fgdepar=548.4099, expected range: 0.0000 139.5705
Severe: avg_pge=0.8930, expected range: -0.6174 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42139 : out of range
Severe: avg_fgdepar=-537.8405, expected range: -255.2466 41.1412
Severe: rms_fgdepar=537.8405, expected range: 0.0000 255.2466
Severe: avg_pge=0.8763, expected range: -0.8057 0.7500
MANUAL LAND SYNOP RH2M (%) 43291 : out of range
Severe: avg_pge=0.9577, expected range: -0.6633 0.7500
MANUAL LAND SYNOP RH2M (%) 62002 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9622, expected range: -0.1142 0.1505
MANUAL LAND SYNOP RH2M (%) 42474 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9980, expected range: -1.6132 0.7500
MANUAL LAND SYNOP RH2M (%) 43086 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9998, expected range: -0.2097 0.2999
MANUAL LAND SYNOP RH2M (%) 68328 : out of range
Severe: avg_fgdepar=60.8200, expected range: -73.1225 74.7331
Severe: rms_fgdepar=60.8200, expected range: 0.0000 55.6840
MANUAL LAND SYNOP RH2M (%) 40638 : out of range
Severe: avg_pge=0.9389, expected range: -0.5424 0.6321
MANUAL LAND SYNOP RH2M (%) 83648 : out of range
Severe: rms_fgdepar=32.1541, expected range: 0.0000 12.6249
BUFR LAND SYNOP SURFACE PRESSURE (PA) 04175 : out of range
Severe: avg_pge=0.8555, expected range: -0.7144 0.7500
BUFR LAND SYNOP RH2M (%) 81732 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-57.1298, expected range: -62.3026 21.7492
Severe: rms_fgdepar=57.1618, expected range: 0.4208 41.8758
Severe: avg_pge=1.0000, expected range: -0.4964 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=103.0000, expected range: 88.5730 92.9826
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HA3373 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=612.5627, expected range: -1123.0867 2043.9850
Severely_persistent: rms_fgdepar=612.5627, expected range: 0.0000 2097.2563
Severely_persistent: avg_pge=0.8527, expected range: -1.0309 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) TBWUK34 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=585.0682, expected range: 0.0000 763.2276
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6TQ6 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-654.5274, expected range: -804.3794 -532.5195
Severely_persistent: rms_fgdepar=655.2220, expected range: 533.0373 804.6936
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) EUCDE56 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=20.7928, expected range: -16.5573 44.7874
Severe: rms_fgdepar=20.7928, expected range: 0.0000 45.1241
Severe: avg_pge=0.9148, expected range: 0.2508 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) J8QY2 : out of range
Severe: rms_fgdepar=412.2346, expected range: 0.0000 189.2899
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3FUZ4 : out of range
Severe: avg_fgdepar=-506.3086, expected range: -830.2771 452.5383
Severe: rms_fgdepar=506.5377, expected range: 0.0000 668.8368
Severe: avg_pge=0.8093, expected range: -1.3247 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRMR6 : out of range
Severe: rms_fgdepar=482.7073, expected range: 0.0000 374.9662
Severe: avg_pge=0.8088, expected range: -1.1906 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRHY7 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-528.6334, expected range: -1369.9022 462.2542
Severe: rms_fgdepar=528.6334, expected range: 43.4982 690.5237
Severe: avg_pge=0.8231, expected range: 0.4997 0.7500
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 2200189 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8903, expected range: -1.0750 0.7500
MOORED BUOYS SURFACE PRESSURE (PA) 4600028 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8650, expected range: 0.0354 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 3301610 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=451.4261, expected range: 0.0000 95.9147
Severely_persistent: avg_pge=0.8661, expected range: -0.0098 0.0112
metar
METAR SURFACE PRESSURE (PA) VGHS : out of range
Severe: rms_fgdepar=308.3324, expected range: 4.8591 132.9098
snow
AUTOMATIC LAND SYNOP SNOW (CM) 71743 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-77.2945, expected range: -81.6421 -68.4679
Severely_persistent: rms_fgdepar=77.2945, expected range: 68.4679 81.6421
AUTOMATIC LAND SYNOP SNOW (CM) 71576 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-58.2119, expected range: -59.3014 -55.8587
Severely_persistent: rms_fgdepar=58.2119, expected range: 55.8587 59.3014
MANUAL LAND SYNOP SNOW (CM) 71816 : out of range
32 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-73.1670, expected range: -71.5304 -47.3465
Severely_persistent: rms_fgdepar=73.1699, expected range: 47.3425 71.5478
BUFR LAND SYNOP SNOW (CM) 01192 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-73.4077, expected range: -81.7429 -63.7441
Severely_persistent: rms_fgdepar=73.4238, expected range: 63.7408 81.7517
BUFR LAND SYNOP SNOW (CM) 71816 : out of range
32 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-73.0904, expected range: -71.3031 -47.4049
Severely_persistent: rms_fgdepar=73.0933, expected range: 47.3969 71.3259
t2m
MANUAL LAND SYNOP 2M TEMPERATURE (K) 25700 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-12.0939, expected range: -19.5325 13.5542
Severely_persistent: rms_fgdepar=12.3647, expected range: 0.0000 16.9572
BUFR LAND SYNOP 2M TEMPERATURE (K) 25700 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-12.1592, expected range: -19.6066 13.5195
Severely_persistent: rms_fgdepar=12.4289, expected range: 0.0000 17.0578
MANUAL LAND SYNOP 2M TEMPERATURE (K) 72410 : out of range
Severe: avg_fgdepar=13.9216, expected range: -1.7818 12.2221
Severe: rms_fgdepar=13.9216, expected range: 0.0000 12.2221
MANUAL LAND SYNOP 2M TEMPERATURE (K) 24477 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-13.1793, expected range: -17.7545 13.2606
Severe: rms_fgdepar=13.1793, expected range: 0.0000 14.3821
METAR 2M TEMPERATURE (K) KBLI : out of range
Severe: avg_fgdepar=15.5166, expected range: 0.1401 2.5382
Severe: rms_fgdepar=15.5166, expected range: 1.0748 2.5104
LAND TEMP 2M TEMPERATURE (K) 61024 : out of range
Severe: avg_fgdepar=-15.0139, expected range: -8.7950 2.4903
Severe: rms_fgdepar=15.0139, expected range: 0.0000 10.8322
BUFR LAND SYNOP 2M TEMPERATURE (K) 24477 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-13.2293, expected range: -17.8045 13.2106
Severe: rms_fgdepar=13.2293, expected range: 0.0000 14.4554
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 04077 : out of range
Severe: rms_fgdepar=33.5443, expected range: 0.0000 16.0003
BUFR LAND SYNOP RH2M (%) 04883 : out of range
Severe: rms_fgdepar=35.1957, expected range: 0.0000 18.6773
BUFR LAND SYNOP RH2M (%) 04077 : out of range
Severe: rms_fgdepar=32.4690, expected range: 0.0000 15.6754