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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2020-05-29 00:00

iasi
METOP-A IASI RADIANCES CHANNEL 566 : out of range
Severe: stdev_fgdepar=0.6089, expected range: 0.2321 0.4090
METOP-A IASI RADIANCES CHANNEL 571 : out of range
Severe: stdev_fgdepar=0.5844, expected range: 0.2379 0.4044
METOP-A IASI RADIANCES CHANNEL 573 : out of range
Severe: stdev_fgdepar=0.5250, expected range: 0.2357 0.3980
cris
NOAA20 CRIS RADIANCES CHANNEL 657 : out of range
Slight: stdev_fgdepar=0.3717, expected range: 0.2948 0.3544
mhs
METOP-A MHS ALLSKY RADIANCES CHANNEL 5 : out of range
3 times in the last 10 days for at least one item
Considerable: obs_number=6642.0000, expected range: 20387.3605 20387.3605
METOP-A MHS ALLSKY RADIANCES CHANNEL 4 : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=8464.0000, expected range: 29058.5582 29058.5582
METOP-A MHS ALLSKY RADIANCES CHANNEL 3 : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=8609.0000, expected range: 30689.5683 30689.5683
gpsro
All FY-3C GNOS RISING ALL HEIGHTS Global : all data missing
Severe: obs_number=0, expected range: 467.59 2312.99
COSMIC2-E6 GPSRO RISING (24 impact heights affected) : out of range
Considerable: obs_number=700.0000, expected range: 1158.1754 2463.9496
SPIRE LEMUR 3U GPSRO SETTING HEIGHT 24 : out of range
Slight: stdev_norm_fgdepar=0.9884, expected range: 0.8201 0.9490
Atmospheric Motion Vector
METEOSAT-8 AMV CLOUDY WV2 WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 : out of range
Considerable: obs_number=1055.0000, expected range: 168.5610 825.3442
NOAA20 VIIRS-AMV IR WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=594.0000, expected range: 0.0000 475.1834
NPP VIIRS AMV IR WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : out of range
1 times in the last 10 days for at least one item
Slight: stdev_press=73.0566, expected range: 64.4321 70.4595
Radiosondes
LAND TEMP WIND VECTOR DIFF (M/S) 21432 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=16.0561, expected range: 0.0000 5.0254
LAND TEMP WIND VECTOR DIFF (M/S) 65578 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=16.0143, expected range: 0.0000 5.0486
Severe: avg_pge=0.8347, expected range: -0.4830 0.7500
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=4.4505, expected range: 0.0000 2.3902
LAND TEMP Q (G/KG) PRESSURE LAYER 900-1200 (HPA) : out of range
Considerable: avg_fgdepar=-1.2791, expected range: -0.5617 0.6157
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
Considerable: obs_number=62.0000, expected range: 107.0835 140.2498
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU4450 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_fgdepar=22.9638, expected range: -1.1970 6.2117
Severe: rms_fgdepar=22.9638, expected range: 0.0000 6.4750
airep
AIREP WIND VECTOR DIFF (M/S) VIR607 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_pge=0.8663, expected range: -1.3372 0.7500
Severe: rms_fgdepar=26.5781, expected range: 0.0000 53.5686
Severe: avg_fgdepar=26.5781, expected range: -33.6776 52.3389
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 97980 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=16.5312, expected range: 0.0000 8.3549
LAND PILOT WIND VECTOR DIFF (M/S) 42886 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_pge=0.8280, expected range: -0.3233 0.7500
LAND PILOT WIND VECTOR DIFF (M/S) 67095 (2 pressure layers affected) : out of range
Severe: avg_pge=0.8414, expected range: -1.6078 0.7500
synop
MANUAL LAND SYNOP RH2M (%) 42770 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9020, expected range: -0.5198 0.7500
MANUAL LAND SYNOP RH2M (%) 76775 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9996, expected range: -1.4371 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 97284 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=347.9113, expected range: 0.0000 151.7996
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40605 : out of range
Severe: rms_fgdepar=415.9431, expected range: 0.0000 205.3619
Severe: avg_pge=0.8557, expected range: -0.6885 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 41316 : out of range
Severe: rms_fgdepar=335.3551, expected range: 0.0000 119.1696
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 67217 : out of range
Severe: avg_pge=0.8047, expected range: 0.5607 0.7500
MANUAL LAND SYNOP RH2M (%) 67861 : out of range
Severe: rms_fgdepar=43.8144, expected range: 0.0000 24.7518
MANUAL LAND SYNOP RH2M (%) 61043 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=50.9785, expected range: -22.8715 31.2618
Severe: rms_fgdepar=50.9785, expected range: 0.0000 20.9052
Severe: avg_pge=1.0000, expected range: -0.0013 0.0080
MANUAL LAND SYNOP RH2M (%) 60557 : out of range
Severe: avg_fgdepar=52.0006, expected range: -14.8715 13.1214
Severe: rms_fgdepar=52.0006, expected range: 0.0000 8.6453
Severe: avg_pge=0.8066, expected range: -0.0042 0.0108
MANUAL LAND SYNOP RH2M (%) 42577 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8911, expected range: -1.2771 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 81982 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-507.8476, expected range: -261.1786 37.8950
Severe: rms_fgdepar=696.7741, expected range: 0.0000 498.1740
BUFR LAND SYNOP SURFACE PRESSURE (PA) 40375 : out of range
Severe: rms_fgdepar=423.3745, expected range: 0.0000 213.2321
BUFR LAND SYNOP SURFACE PRESSURE (PA) 30439 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=506.0919, expected range: 0.0000 135.8587
BUFR LAND SYNOP RH2M (%) 24641 : out of range
Severe: rms_fgdepar=31.5285, expected range: 0.0000 14.9391
BUFR LAND SYNOP RH2M (%) 94642 : out of range
Severe: avg_pge=0.9522, expected range: -0.6162 0.7500
BUFR LAND SYNOP RH2M (%) 94344 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8760, expected range: -0.7314 0.7500
BUFR LAND SYNOP RH2M (%) 71825 : out of range
Severe: avg_pge=0.9793, expected range: -0.7966 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=119.0000, expected range: 129.8397 149.6603
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) ONGI : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-589.2556, expected range: -698.5588 1108.3811
Severely_persistent: rms_fgdepar=589.2556, expected range: 0.0000 998.1088
Severely_persistent: avg_pge=0.8579, expected range: -1.1201 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) S6DU6 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8161, expected range: 0.6417 0.7500
Severely_persistent: rms_fgdepar=548.9752, expected range: 386.3009 784.1879
Severely_persistent: avg_fgdepar=548.9752, expected range: 386.3009 784.1879
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V9375 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=563.7058, expected range: 0.0000 1045.4130
Severely_persistent: avg_fgdepar=525.5449, expected range: -216.0407 1149.9636
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRQK3 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=638.8259, expected range: 390.5492 794.3030
Severely_persistent: avg_fgdepar=-631.1412, expected range: -749.1166 -424.5838
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRDJ3 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8115, expected range: 0.7350 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9VBP8 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8854, expected range: -0.5918 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) KGTX : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8136, expected range: 0.5966 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WDC6055 : out of range
Severe: rms_fgdepar=429.6761, expected range: 0.0000 173.6116
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V9404 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=840.1866, expected range: 0.0000 1768.0221
Severe: avg_fgdepar=750.6634, expected range: -796.3006 1323.1555
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OYIK2 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8325, expected range: -0.3168 0.7500
Severe: rms_fgdepar=556.1739, expected range: 0.0000 1175.6218
Severe: avg_fgdepar=556.1739, expected range: -141.9132 1289.4998
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 3FUP6 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8958, expected range: 0.3157 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) CFL24 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9508, expected range: -0.2200 0.7500
Severe: rms_fgdepar=34.6154, expected range: 0.0000 25.7721
Severe: avg_fgdepar=34.4016, expected range: -5.0103 21.7729
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9V9922 : out of range
Severe: avg_pge=0.8895, expected range: -0.8560 0.7500
Severe: rms_fgdepar=16.0217, expected range: 0.0000 12.7551
BUFR SHIP SYNOP SURFACE PRESSURE (PA) H3VS : out of range
Severe: avg_fgdepar=-504.1384, expected range: -543.7641 -110.9775
Severe: rms_fgdepar=546.7291, expected range: 164.8210 516.3504
BUFR SHIP SYNOP SURFACE PRESSURE (PA) UCQX : out of range
Severe: avg_fgdepar=928.1248, expected range: -681.2982 2408.8330
Severe: rms_fgdepar=929.2417, expected range: 0.0000 2412.8028
Severe: avg_pge=0.8867, expected range: 0.5389 0.7500
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 6100198 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8968, expected range: -0.9216 0.7500
MOORED BUOYS WIND VECTOR DIFF (M/S) 0053041 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8651, expected range: -0.5118 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5300555 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8716, expected range: -1.2859 0.7500
MOORED BUOYS WIND VECTOR DIFF (M/S) : out of range
Considerable: obs_number=65.0000, expected range: 73.1221 80.1001
metar
METAR SURFACE PRESSURE (PA) OOSA : out of range
Severe: rms_fgdepar=417.4975, expected range: 8.8315 82.8115
METAR SURFACE PRESSURE (PA) OPPG : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=565.7733, expected range: -347.5634 436.1455
Severe: rms_fgdepar=567.4729, expected range: 0.0000 291.0166
METAR SURFACE PRESSURE (PA) VEBI : out of range
Severe: rms_fgdepar=473.4153, expected range: 0.0000 262.0019
snow
AUTOMATIC LAND SYNOP SNOW (CM) 01132 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=68.4971, expected range: 69.2716 75.9517
Severely_persistent: rms_fgdepar=68.4971, expected range: 69.2716 75.9517
MANUAL LAND SYNOP SNOW (CM) 11138 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=78.4572, expected range: 60.6137 102.0139
Severely_persistent: rms_fgdepar=78.4572, expected range: 60.6137 102.0139
BUFR LAND SYNOP SNOW (CM) 01132 : out of range
36 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=70.4026, expected range: 71.0418 75.3338
Severely_persistent: rms_fgdepar=70.4247, expected range: 71.0440 75.3340
BUFR LAND SYNOP SNOW (CM) 01435 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=107.4492, expected range: 96.5323 117.9597
Severely_persistent: rms_fgdepar=107.4498, expected range: 96.5407 117.9586
BUFR LAND SYNOP SNOW (CM) 01008 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-60.7608, expected range: -127.9522 -62.2836
Severely_persistent: rms_fgdepar=60.7608, expected range: 62.2875 127.9498
BUFR LAND SYNOP SNOW (CM) 11138 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=79.0885, expected range: 62.5180 102.6900
Severely_persistent: rms_fgdepar=79.0885, expected range: 62.5180 102.6900
ROCOB TEMP SNOW (CM) 64301321 : out of range
Severe: avg_fgdepar=51.7816, expected range: 21.9832 52.1667
Severe: rms_fgdepar=51.7816, expected range: 21.9832 52.1667
ROCOB TEMP SNOW (CM) 64301455 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=28.3698, expected range: 2.0530 13.0260
BUFR LAND SYNOP SNOW (CM) 01361 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=108.6365, expected range: 97.1615 109.9554
Severe: rms_fgdepar=108.6366, expected range: 97.1642 109.9572
t2m
BUFR LAND SYNOP 2M TEMPERATURE (K) 27415 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-12.3309, expected range: -15.2412 0.3764
Severely_persistent: rms_fgdepar=12.4878, expected range: 0.0000 15.8516
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 55472 : out of range
Severe: avg_est_pge=0.8371, expected range: 0.3473 1.1000
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 56444 : out of range
Severe: avg_fgdepar=12.9309, expected range: -4.5655 6.2891
Severe: rms_fgdepar=12.9309, expected range: 0.0000 5.5424
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 56106 : out of range
2 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8452, expected range: 0.5007 0.9942
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 55578 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8291, expected range: -0.5187 1.3636
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 55299 : out of range
Severe: avg_est_pge=0.8455, expected range: -0.4134 1.3217
MANUAL LAND SYNOP 2M TEMPERATURE (K) 87405 : out of range
Severe: avg_est_pge=0.8129, expected range: 0.0833 0.8800
MANUAL LAND SYNOP 2M TEMPERATURE (K) 38847 : out of range
Severe: rms_fgdepar=11.4078, expected range: 1.9376 7.2664
METAR 2M TEMPERATURE (K) KSKF : out of range
Severe: avg_fgdepar=-13.4408, expected range: -1.1233 2.7871
Severe: rms_fgdepar=14.9300, expected range: 0.9597 3.5902
METAR 2M TEMPERATURE (K) MMPG : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.0042, expected range: 0.9999 4.5768
METAR 2M TEMPERATURE (K) CYWK : out of range
Severe: avg_fgdepar=14.2304, expected range: 0.3521 10.9670
Severe: rms_fgdepar=14.4342, expected range: 0.6899 11.5599
BUFR LAND SYNOP 2M TEMPERATURE (K) 87405 : out of range
Severe: avg_est_pge=0.8121, expected range: 0.1944 0.8322
MANUAL LAND SYNOP 2M TEMPERATURE (K) : out of range
Considerable: obs_number=122.0000, expected range: 142.9178 183.5822