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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2020-06-02 00:00

iasi
METOP-B IASI RADIANCES CHANNEL 515 : out of range
Considerable: stdev_fgdepar=0.4361, expected range: 0.2982 0.3892
cris
NPP CRIS RADIANCES CHANNEL 140 : out of range
Considerable: avg_biascorr=-0.0212, expected range: -0.0155 -0.0068
mwhs2
FY-3C MWHS2 ALLSKY RADIANCES CHANNEL 13 : out of range
Considerable: avg_norm_fgdepar=0.2550, expected range: -0.1100 0.1035
mwhs
All FY-3B MWHS ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 3711.08 30092.68
gpsro
All FY-3C GNOS RISING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 467.59 2312.99
COSMIC2-E3 GPSRO RISING (24 impact heights affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=537.0000, expected range: 892.6804 2048.1756
Atmospheric Motion Vector
NPP VIIRS AMV IR WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : out of range
Severe: stdev_press=71.1948, expected range: 62.0892 67.1110
Radiosondes
LAND TEMP TEMPERATURE (K) 20674 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=7.0817, expected range: 0.1544 2.9774
LAND TEMP WIND VECTOR DIFF (M/S) 34122 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.7948, expected range: 0.0000 7.7141
HIGH RESO LAND TEMP TEMPERATURE (K) 70133 PRESSURE LAYER 900-1200 (HPA : out of range
Severe: rms_fgdepar=7.0452, expected range: 0.0000 3.3044
HIGH RESO LAND TEMP Q (G/KG) 12843 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.8299, expected range: 0.0000 1.4735
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 81 : all data missing
Severe: obs_number=0, expected range: 32.02 451.41
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 95 : all data missing
Severe: obs_number=0, expected range: 69.87 166.13
HIGH RESO SEA TEMP Q (G/KG) (4 pressure layers affected) : out of range
Severe: obs_number=199.0000, expected range: 130.9203 136.1908
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: obs_number=139.0000, expected range: 183.2075 237.0425
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
Considerable: obs_number=192.0000, expected range: 239.6667 314.5833
amdar
WIGOS AMDAR TEMPERATURE (K) 5LECFFDQ PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8097, expected range: -1.3789 0.7500
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 60602 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8167, expected range: 0.5799 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 68840 : out of range
Severe: avg_pge=0.9081, expected range: -0.0493 0.0692
AUTOMATIC LAND SYNOP RH2M (%) 68837 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=53.7113, expected range: -38.6175 53.9104
Severe: rms_fgdepar=53.7113, expected range: 0.0000 50.1615
Severe: avg_pge=0.9990, expected range: -1.4628 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 40340 : out of range
Severe: rms_fgdepar=393.5063, expected range: 0.0000 226.3618
Severe: avg_pge=0.8932, expected range: -0.6678 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 89625 : out of range
Severe: avg_fgdepar=-502.4005, expected range: -55.8331 165.1905
Severe: rms_fgdepar=502.7139, expected range: 0.0000 171.8739
Severe: avg_pge=0.8641, expected range: -0.0994 0.1140
MANUAL LAND SYNOP RH2M (%) 43014 : out of range
Severe: rms_fgdepar=33.7627, expected range: 0.0000 14.1974
MANUAL LAND SYNOP RH2M (%) 42855 : out of range
Severe: avg_fgdepar=-57.1169, expected range: -48.9852 21.9793
Severe: rms_fgdepar=57.1169, expected range: 0.0000 48.9852
Severe: avg_pge=1.0000, expected range: -0.3169 0.3955
MANUAL LAND SYNOP RH2M (%) 40016 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9887, expected range: -1.6296 0.7500
MANUAL LAND SYNOP RH2M (%) 42237 : out of range
Severe: rms_fgdepar=33.5577, expected range: 0.0000 11.2779
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42588 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=1102.4678, expected range: -558.5560 337.8142
Severe: rms_fgdepar=1102.4678, expected range: 0.0000 491.6102
Severe: avg_pge=0.9371, expected range: -1.2558 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43029 : out of range
Severe: avg_fgdepar=-735.7830, expected range: -401.7290 425.1095
Severe: rms_fgdepar=735.7830, expected range: 0.0000 262.3613
Severe: avg_pge=0.9136, expected range: -1.2644 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 33679 : out of range
Severe: avg_pge=0.8042, expected range: -0.8091 0.7500
MANUAL LAND SYNOP Z (M) 41508 : out of range
Severe: avg_pge=0.9454, expected range: -0.3114 0.4367
BUFR LAND SYNOP RH2M (%) 94211 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9898, expected range: -1.7105 0.7500
BUFR LAND SYNOP RH2M (%) 02432 : out of range
Severe: rms_fgdepar=32.7583, expected range: 0.0000 17.6633
BUFR LAND SYNOP RH2M (%) 72414 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-54.0827, expected range: -54.5664 32.7817
Severe: rms_fgdepar=54.0827, expected range: 0.0000 54.5664
Severe: avg_pge=0.9553, expected range: -1.2358 0.7500
BUFR LAND SYNOP RH2M (%) 71855 : out of range
Severe: avg_pge=0.9668, expected range: -0.9521 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24802 : out of range
Severe: rms_fgdepar=536.5021, expected range: 0.0000 169.7640
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=401.0000, expected range: 308.1778 360.8222
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) TBWUK48 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8208, expected range: 0.0562 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) PCHF : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8590, expected range: 0.4720 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OYIK2 : out of range
21 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=541.3349, expected range: 404.2375 798.0571
Severely_persistent: rms_fgdepar=543.5835, expected range: 404.5464 798.4280
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRDJ3 : out of range
21 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-583.5139, expected range: -689.2868 -307.2870
Severely_persistent: rms_fgdepar=583.6171, expected range: 306.2639 691.3719
Severely_persistent: avg_pge=0.8410, expected range: 0.7314 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRQK3 : out of range
27 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-645.1815, expected range: -744.1829 -432.8024
Severely_persistent: rms_fgdepar=645.3745, expected range: 417.3831 794.4583
Severely_persistent: avg_pge=0.8532, expected range: 0.7816 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6AX3 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8003, expected range: 0.7169 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRMO4 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-529.1725, expected range: -676.2052 -396.8924
Severely_persistent: rms_fgdepar=529.1725, expected range: 396.8924 676.2052
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6DF6 : out of range
24 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=574.7460, expected range: -865.9840 1506.0872
Severely_persistent: rms_fgdepar=574.7460, expected range: 0.0000 1538.9819
Severely_persistent: avg_pge=0.8273, expected range: -1.4478 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) S6DU6 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=716.2832, expected range: 323.0615 877.7501
Severely_persistent: rms_fgdepar=716.2832, expected range: 323.0615 877.7501
BUFR SHIP SYNOP SURFACE PRESSURE (PA) UCQX : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=1062.2366, expected range: -60.3450 1879.3092
Severely_persistent: rms_fgdepar=1063.1767, expected range: 0.0000 1875.5060
Severely_persistent: avg_pge=0.8999, expected range: 0.6213 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) C6UT5 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=27.0322, expected range: -4.1425 11.2859
Severe: rms_fgdepar=27.0322, expected range: 0.0000 11.2859
Severe: avg_pge=0.9345, expected range: -0.8984 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) TBWUK72 : out of range
Severe: rms_fgdepar=340.2076, expected range: 0.0000 141.1967
BUFR SHIP SYNOP SURFACE PRESSURE (PA) ZCEF2 : out of range
Severe: avg_fgdepar=531.6819, expected range: -641.6322 418.7587
Severe: rms_fgdepar=531.6819, expected range: 0.0000 553.5449
Severe: avg_pge=0.8181, expected range: -1.1462 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OXFG2 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=637.2639, expected range: -528.6453 1831.4056
Severe: rms_fgdepar=637.2639, expected range: 0.0000 1822.3174
Severe: avg_pge=0.8398, expected range: 0.5740 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) CQIV3 : out of range
Severe: avg_fgdepar=-622.2228, expected range: -271.3542 179.9688
Severe: rms_fgdepar=622.2228, expected range: 0.0000 385.4495
Severe: avg_pge=0.8596, expected range: -0.7975 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7EQ4 : out of range
Severe: avg_fgdepar=571.0375, expected range: -171.3837 481.3186
Severe: rms_fgdepar=571.0375, expected range: 0.0000 481.3186
Severe: avg_pge=0.8297, expected range: -0.8228 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRON5 : out of range
Severe: avg_fgdepar=761.8845, expected range: -247.5825 -19.8972
Severe: rms_fgdepar=761.8845, expected range: 45.0310 247.2919
Severe: avg_pge=0.8609, expected range: -0.2714 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) TBWUK87 : out of range
Severe: avg_fgdepar=562.5093, expected range: -562.9172 627.6752
Severe: rms_fgdepar=562.5093, expected range: 0.0000 465.4752
Severe: avg_pge=0.8221, expected range: -0.8850 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HJD9 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=803.1683, expected range: -72.5415 476.5423
Severe: rms_fgdepar=814.2542, expected range: 0.0000 535.7990
Severe: avg_pge=0.8727, expected range: -0.6877 0.7500
buoy
DRIBU SURFACE PRESSURE (PA) 23491 : out of range
Severe: avg_pge=0.8231, expected range: -0.9164 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5601521 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=564.4439, expected range: 0.0000 225.5381
metar
METAR SURFACE PRESSURE (PA) FNUB : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=368.1334, expected range: 0.0000 84.3872
METAR SURFACE PRESSURE (PA) MMMD : out of range
Severe: rms_fgdepar=401.6846, expected range: 0.0000 191.5758
METAR SURFACE PRESSURE (PA) FNUE : out of range
Severe: avg_fgdepar=-577.7920, expected range: -657.1374 652.4994
Severe: rms_fgdepar=577.7920, expected range: 0.0000 521.1889
snow
AUTOMATIC LAND SYNOP SNOW (CM) 01132 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=51.4502, expected range: 56.3376 84.5887
Severely_persistent: rms_fgdepar=51.4502, expected range: 56.3376 84.5887
MANUAL LAND SYNOP SNOW (CM) 11138 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=76.6395, expected range: 68.1428 81.6072
Severely_persistent: rms_fgdepar=76.6395, expected range: 68.1428 81.6072
BUFR LAND SYNOP SNOW (CM) 01361 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=99.5000, expected range: 97.6866 113.3748
Severely_persistent: rms_fgdepar=99.5013, expected range: 97.6893 113.3754
BUFR LAND SYNOP SNOW (CM) 01132 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=52.7253, expected range: 58.3278 83.4811
Severely_persistent: rms_fgdepar=52.7407, expected range: 58.3457 83.4716
BUFR LAND SYNOP SNOW (CM) 01435 : out of range
24 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=96.2580, expected range: 97.4538 116.0240
Severely_persistent: rms_fgdepar=96.2603, expected range: 97.4582 116.0253
BUFR LAND SYNOP SNOW (CM) 01346 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=85.2948, expected range: 87.5380 92.4269
Severely_persistent: rms_fgdepar=85.2952, expected range: 87.5497 92.4202
BUFR LAND SYNOP SNOW (CM) 11138 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=77.6849, expected range: 64.9429 88.6682
Severely_persistent: rms_fgdepar=77.6849, expected range: 64.9429 88.6682
AUTOMATIC LAND SYNOP SNOW (CM) 01361 : out of range
Severe: avg_fgdepar=99.0000, expected range: 94.1102 115.5101
Severe: rms_fgdepar=99.0000, expected range: 94.1102 115.5101
AUTOMATIC LAND SYNOP SNOW (CM) 01435 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=95.1938, expected range: 104.6839 110.0152
Severe: rms_fgdepar=95.1938, expected range: 104.6839 110.0152
AUTOMATIC LAND SYNOP SNOW (CM) 15307 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=68.0000, expected range: -29.8748 37.8748
Severe: rms_fgdepar=68.0000, expected range: -42.2493 53.5630
ROCOB TEMP SNOW (CM) 64301557 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=22.9130, expected range: 0.0000 11.0885
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 53502 : out of range
Severe: avg_fgdepar=12.3860, expected range: 3.5108 11.2630
Severe: rms_fgdepar=12.3860, expected range: 3.5108 11.2630
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 53336 : out of range
Severe: avg_fgdepar=12.6365, expected range: -11.8434 15.5949
Severe: rms_fgdepar=12.6365, expected range: 0.0000 11.0695
METAR 2M TEMPERATURE (K) KLRD : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.4361, expected range: 0.5003 4.4432
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 06108 : out of range
Severe: rms_fgdepar=30.8014, expected range: 0.0000 15.8156
MANUAL LAND SYNOP RH2M (%) 42860 : out of range
Severe: rms_fgdepar=34.0863, expected range: 0.0000 11.9441
MANUAL LAND SYNOP RH2M (%) 72464 : out of range
Severe: rms_fgdepar=31.6312, expected range: 0.0000 14.3654
METAR RH2M (%) MMBT : out of range
Severe: rms_fgdepar=34.0401, expected range: 0.0000 17.7048