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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2020-05-31 12:00

iasi
METOP-A IASI RADIANCES CHANNEL 70 : out of range
Slight: avg_fgdepar=0.0197, expected range: -0.0119 0.0117
mwhs
All FY-3B MWHS ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 16143.40 19167.77
atms
NPP ATMS RADIANCES (11 channels affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=15301.0000, expected range: 20212.6444 24710.2968
NPP ATMS RADIANCES CHANNEL 9 : out of range
Considerable: avg_biascorr=-0.2820, expected range: -0.2686 -0.2424
NOAA20 ATMS RADIANCES (11 channels affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=14454.0000, expected range: 20166.3538 25381.6462
gpsro
All FY-3C GNOS RISING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 467.59 2312.99
All COSMIC2-E3 GPSRO RISING ALL HEIGHTS Global : all data missing
Severe: obs_number=0, expected range: 892.68 3105.69
All COSMIC2-E5 GPSRO RISING ALL HEIGHTS Global : all data missing
Severe: obs_number=0, expected range: 648.69 2312.93
All COSMIC2-E6 GPSRO RISING ALL HEIGHTS Global : all data missing
Severe: obs_number=0, expected range: 712.14 3225.89
Atmospheric Motion Vector
NOAA20 VIIRS-AMV IR WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: obs_number=498.0000, expected range: 0.0000 331.9774
GOES-17 AMV IR1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 600-900 (HPA) : out of range
Considerable: obs_number=266.0000, expected range: 95.9922 211.0078
Radiosondes
LAND TEMP TEMPERATURE (K) 27459 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=8.5524, expected range: 0.0000 3.6088
LAND TEMP Q (G/KG) 40437 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.3157, expected range: 0.0000 0.9293
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=3.5802, expected range: 0.7664 1.3081
Severe: rms_fgdepar=4.3283, expected range: 0.7377 1.3019
HIGH RESO LAND TEMP TEMPERATURE (K) 57131 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=6.9657, expected range: 0.4086 3.2395
HIGH RESO LAND TEMP TEMPERATURE (K) 94578 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=6.6254, expected range: 0.0000 1.8916
HIGH RESO LAND TEMP TEMPERATURE (K) 58847 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=6.6506, expected range: 0.0000 2.0379
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 57993 (2 pressure layers af : out of range
Severe: rms_fgdepar=18.8475, expected range: 0.4043 5.0288
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 57993 PRESSURE LAYER 0-300 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8166, expected range: -0.1054 0.1283
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 53915 PRESSURE LAYER 0-300 : out of range
Severe: rms_fgdepar=15.8468, expected range: 0.0000 8.5070
HIGH RESO LAND TEMP Q (G/KG) 57083 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=4.7575, expected range: 0.0000 2.2488
HIGH RESO LAND TEMP Q (G/KG) 47418 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.1337, expected range: 0.0000 1.1668
HIGH RESO LAND TEMP Q (G/KG) (2 pressure layers affected) : out of range
Severe: obs_number=198.0000, expected range: 257.3709 266.6291
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 26 : all data missing
Severe: obs_number=0, expected range: 80.72 140.88
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 600-900 (HPA) : out of range
Considerable: rms_fgdepar=3.9191, expected range: 0.2222 2.4508
HIGH RESO LAND TEMP Q (G/KG) (4 pressure layers affected) : out of range
Considerable: obs_number=231.0000, expected range: 292.5593 408.3296
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 900-1200 (HPA) : out of range
Considerable: rms_fgdepar=1.7419, expected range: 0.2412 1.1720
amdar
WIGOS AMDAR TEMPERATURE (K) PRESSURE LAYER 600-900 (HPA) : missing
1 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 0.0000 320.7012
WIGOS AMDAR WIND VECTOR DIFF (M/S) VJ3H1DBA PRESSURE LAYER 0-300 (HPA) : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=20.2052, expected range: 0.0000 6.1355
Severe: avg_pge=0.8527, expected range: -0.1257 0.1760
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 98618 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=22.2357, expected range: 2.4888 4.2373
Severe: rms_fgdepar=22.2357, expected range: 3.0758 4.5476
Severe: avg_pge=0.8161, expected range: -0.1473 0.2345
synop
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71419 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=244.0204, expected range: 0.0000 160.6094
Severely_persistent: avg_pge=0.8536, expected range: -0.5584 0.7500
MANUAL LAND SYNOP RH2M (%) 42103 : out of range
Severe: rms_fgdepar=38.7117, expected range: 0.0000 6.7103
Severe: avg_pge=0.9899, expected range: -0.0956 0.1145
MANUAL LAND SYNOP RH2M (%) 43213 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=30.1197, expected range: -8.2058 12.1560
Severe: avg_pge=0.9240, expected range: -0.0223 0.0316
MANUAL LAND SYNOP RH2M (%) 42693 : out of range
Severe: rms_fgdepar=40.7654, expected range: 0.0000 22.0076
Severe: avg_pge=0.9970, expected range: -0.2208 0.2609
MANUAL LAND SYNOP RH2M (%) 42874 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=42.3669, expected range: 0.0000 13.7497
Severe: avg_pge=0.8563, expected range: -0.0001 0.0064
MANUAL LAND SYNOP RH2M (%) 40616 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9800, expected range: -1.1612 0.7500
MANUAL LAND SYNOP RH2M (%) 43157 : out of range
Severe: rms_fgdepar=47.3134, expected range: 0.0000 17.4666
Severe: avg_pge=0.8496, expected range: -0.0017 0.0075
MANUAL LAND SYNOP RH2M (%) 42587 : out of range
Severe: avg_pge=0.9983, expected range: -0.1816 0.2402
MANUAL LAND SYNOP RH2M (%) 43158 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=51.2876, expected range: 0.6010 59.4074
Severe: rms_fgdepar=51.2876, expected range: 0.6010 59.4074
Severe: avg_pge=0.9789, expected range: -1.3423 0.7500
MANUAL LAND SYNOP RH2M (%) 36859 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9500, expected range: -1.2443 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42935 : out of range
Severe: rms_fgdepar=416.3391, expected range: 0.0000 250.9024
Severe: avg_pge=0.8152, expected range: -1.0920 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 86255 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=388.5313, expected range: 0.0000 197.4834
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 84036 : out of range
Severe: rms_fgdepar=472.9510, expected range: 9.3377 67.3943
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42557 : out of range
Severe: rms_fgdepar=379.5368, expected range: 211.4374 317.7331
Severe: avg_pge=0.8069, expected range: 0.5269 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42948 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=381.3304, expected range: 0.0000 279.7050
Severe: avg_pge=0.8510, expected range: -0.9031 0.7500
BUFR LAND SYNOP RH2M (%) 16261 : out of range
Severe: rms_fgdepar=36.1224, expected range: 0.0000 15.3537
BUFR LAND SYNOP RH2M (%) 70361 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=41.9551, expected range: 0.0000 13.3753
BUFR LAND SYNOP RH2M (%) 02722 : out of range
Severe: rms_fgdepar=33.3618, expected range: 2.9775 10.7491
BUFR LAND SYNOP RH2M (%) 48052 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=58.6969, expected range: -34.0016 59.5423
Severe: rms_fgdepar=58.6969, expected range: 0.0000 57.4936
Severe: avg_pge=1.0000, expected range: -1.4085 0.7500
BUFR LAND SYNOP RH2M (%) 08455 : out of range
Severe: rms_fgdepar=33.8871, expected range: 0.0000 15.6325
BUFR LAND SYNOP RH2M (%) 08395 : out of range
Severe: rms_fgdepar=36.1348, expected range: 1.0765 11.9494
BUFR LAND SYNOP Z (M) 08103 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=19.2207, expected range: 119.3350 197.2078
BUFR LAND SYNOP SURFACE PRESSURE (PA) 33446 : out of range
Severe: rms_fgdepar=610.8663, expected range: 0.0000 222.8225
AUTOMATIC LAND SYNOP RH2M (%) : out of range
Considerable: obs_number=50.0000, expected range: 57.2130 69.2315
MANUAL LAND SYNOP RH2M (%) : out of range
Considerable: obs_number=72.0000, expected range: 91.3095 124.6905
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9V2734 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8840, expected range: 0.1655 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9VBP8 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8382, expected range: -0.5253 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) PCHF : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8663, expected range: 0.3008 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OYIK2 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=538.4554, expected range: 424.6927 797.6112
Severely_persistent: rms_fgdepar=538.4554, expected range: 424.5862 798.2104
Severely_persistent: avg_pge=0.8107, expected range: -0.1196 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRDJ3 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-553.0852, expected range: -701.3292 -307.7952
Severely_persistent: rms_fgdepar=553.8293, expected range: 304.5609 706.9705
Severely_persistent: avg_pge=0.8279, expected range: 0.7269 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRQK3 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-608.1465, expected range: -788.8457 -400.7372
Severely_persistent: rms_fgdepar=610.8083, expected range: 391.5929 808.9521
Severely_persistent: avg_pge=0.8550, expected range: 0.7748 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRMO4 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-522.1345, expected range: -759.0237 -339.8361
Severely_persistent: rms_fgdepar=522.1345, expected range: 345.8004 705.5572
BUFR SHIP SYNOP SURFACE PRESSURE (PA) ONGI : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8077, expected range: -1.3177 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) UCQX : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=1030.6260, expected range: -192.8164 1956.1747
Severely_persistent: rms_fgdepar=1031.0487, expected range: 0.0000 1952.7367
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) LAJF7 : out of range
Severe: rms_fgdepar=18.3229, expected range: 0.0000 8.4309
Severe: avg_pge=0.8937, expected range: -0.5719 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRCJ2 : out of range
Severe: avg_fgdepar=-503.2982, expected range: -459.9221 139.0110
Severe: rms_fgdepar=503.2982, expected range: 0.0000 455.4364
Severe: avg_pge=0.8344, expected range: -0.9022 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9VPY4 : out of range
Severe: avg_fgdepar=592.3316, expected range: -267.7024 666.6156
Severe: rms_fgdepar=634.7347, expected range: 0.0000 783.8807
BUFR SHIP SYNOP SURFACE PRESSURE (PA) D5MQ6 : out of range
Severe: rms_fgdepar=335.3037, expected range: 0.0000 137.7675
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRQO7 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8208, expected range: 0.5038 0.7500
buoy
MOORED BUOYS SURFACE PRESSURE (PA) 2200186 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8051, expected range: -0.9499 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1601700 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-562.5736, expected range: -1035.3325 1227.4682
Severely_persistent: rms_fgdepar=564.2683, expected range: 0.0000 1200.4030
DRIFTING BUOYS SURFACE PRESSURE (PA) 6301676 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-564.6729, expected range: -651.6611 620.8404
Severely_persistent: rms_fgdepar=566.1644, expected range: -421.6960 620.5552
Severely_persistent: avg_pge=0.9043, expected range: -0.9812 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6203641 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=527.5475, expected range: -375.6787 520.5147
Severe: avg_pge=0.8374, expected range: -1.0514 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101757 : out of range
Severe: rms_fgdepar=385.7506, expected range: 0.0000 133.1244
metar
METAR SURFACE PRESSURE (PA) OIBH : out of range
Severe: avg_fgdepar=-522.3887, expected range: -610.0871 -148.6938
Severe: rms_fgdepar=524.0097, expected range: 154.1199 611.5365
METAR SURFACE PRESSURE (PA) LPBJ : out of range
Severe: rms_fgdepar=421.2906, expected range: 3.1285 70.6703
METAR SURFACE PRESSURE (PA) KALN : out of range
Severe: rms_fgdepar=307.3855, expected range: 0.0000 136.2808
METAR SURFACE PRESSURE (PA) PALP : out of range
Severe: rms_fgdepar=385.6999, expected range: 0.0000 164.6111
METAR SURFACE PRESSURE (PA) LPMR : out of range
Severe: rms_fgdepar=454.7757, expected range: 0.0000 112.8945
METAR SURFACE PRESSURE (PA) HEIS : out of range
Severe: rms_fgdepar=382.7721, expected range: 0.0000 157.6573
snow
AUTOMATIC LAND SYNOP SNOW (CM) 71356 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-55.7063, expected range: -59.7079 -54.4258
Severely_persistent: rms_fgdepar=55.7063, expected range: 54.4258 59.7079
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=60.0000, expected range: 67.9945 77.0453
Severely_persistent: rms_fgdepar=60.0083, expected range: 68.0065 77.0388
BUFR LAND SYNOP SNOW (CM) 01435 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=98.9802, expected range: 98.9385 115.9619
Severely_persistent: rms_fgdepar=98.9802, expected range: 98.9456 115.9608
BUFR LAND SYNOP SNOW (CM) 01346 : out of range
Severe: avg_fgdepar=89.3022, expected range: 88.2469 92.2844
Severe: rms_fgdepar=89.3022, expected range: 88.2472 92.2868
t2m
MANUAL LAND SYNOP 2M TEMPERATURE (K) 36905 : out of range
Severe: rms_fgdepar=10.4186, expected range: 1.4193 5.9807
MANUAL LAND SYNOP 2M TEMPERATURE (K) 42587 : out of range
Severe: rms_fgdepar=10.2558, expected range: 0.1268 5.0543
METAR 2M TEMPERATURE (K) KSSC : out of range
Severe: avg_fgdepar=-14.9986, expected range: -3.4326 3.3567
Severe: rms_fgdepar=14.9986, expected range: 0.0000 7.1087
METAR 2M TEMPERATURE (K) KWRI : out of range
Severe: rms_fgdepar=10.6129, expected range: 0.0000 5.2266
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 89272 : out of range
Severe: rms_fgdepar=37.2545, expected range: 0.0000 11.2866
METAR RH2M (%) RJSR : out of range
Severe: rms_fgdepar=39.2244, expected range: 0.0000 19.7945