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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-09-19 12:00

amsua
METOP-A/AMSUA RADIANCES (10 channels affected) : out of range
Considerable: obs_number=4655.0000, expected range: 7361.8797 14532.4060
METOP-C/AMSUA RADIANCES CHANNEL 9 : out of range
Slight: avg_fgdepar=-0.0097, expected range: -0.0018 0.0453
iasi
All METOP-A/IASI RADIANCES ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 0.00 28064.99
METOP-B/IASI RADIANCES (173 channels affected) : out of range
Severe: obs_number=19824.0000, expected range: 21502.3544 22956.3299
METOP-C/IASI RADIANCES (152 channels affected) : out of range
Severe: obs_number=106231.0000, expected range: 117589.8289 125580.4955
cris
NPP/CRIS RADIANCES CHANNEL 773 : out of range
Severe: avg_fgdepar=-0.6619, expected range: -0.0428 0.0745
Severe: stdev_fgdepar=2.8379, expected range: 0.3179 0.3895
NPP/CRIS RADIANCES CHANNEL 794 : out of range
Severe: avg_fgdepar=0.3974, expected range: -0.0994 0.1535
Severe: stdev_fgdepar=2.3908, expected range: 0.3989 0.6103
NPP/CRIS RADIANCES CHANNEL 839 : out of range
Severe: avg_fgdepar=0.4313, expected range: -0.1174 0.1664
Severe: stdev_fgdepar=2.6674, expected range: 0.7577 1.0171
NPP/CRIS RADIANCES CHANNEL 965 : out of range
Severe: avg_fgdepar=-1.0432, expected range: -0.1289 0.1674
Severe: stdev_fgdepar=5.1058, expected range: 1.0071 1.3248
Severe: avg_biascorr=-36.1562, expected range: 0.0093 0.0896
NPP/CRIS RADIANCES CHANNEL 973 : out of range
Severe: avg_fgdepar=-0.7821, expected range: -0.1105 0.1510
Severe: stdev_fgdepar=4.7535, expected range: 0.9219 1.1789
Severe: avg_biascorr=-32.5349, expected range: -0.0229 0.0573
NPP/CRIS RADIANCES CHANNEL 981 : out of range
Severe: avg_fgdepar=-0.8676, expected range: -0.1239 0.1620
Severe: stdev_fgdepar=5.1898, expected range: 0.9775 1.2883
Severe: avg_biascorr=-34.0889, expected range: -0.0044 0.0675
NPP/CRIS RADIANCES CHANNEL 989 : out of range
Severe: avg_fgdepar=-0.9127, expected range: -0.1260 0.1745
Severe: stdev_fgdepar=4.7142, expected range: 1.0037 1.2935
NPP/CRIS RADIANCES CHANNEL 991 : out of range
Severe: avg_fgdepar=-0.9818, expected range: -0.1382 0.1780
Severe: stdev_fgdepar=5.0553, expected range: 0.9830 1.4136
mhs
ALLSKY METOP-A/MHS RADIANCES (5 channels affected) : out of range
3 times in the last 10 days for at least one item
Severe: obs_number=12652.0000, expected range: 24177.0333 33810.8614
ssmis
DMSP-18/SSMIS RADIANCES CHANNEL 6 : out of range
Severe: obs_number=21014.0000, expected range: 23090.1024 25680.5130
DMSP-18/SSMIS RADIANCES CHANNEL 10 : out of range
Severe: obs_number=19985.0000, expected range: 22040.3902 24397.0970
DMSP-18/SSMIS RADIANCES CHANNEL 11 : out of range
Severe: obs_number=19997.0000, expected range: 22004.9661 24486.6749
DMSP-17/SSMIS RADIANCES (6 channels affected) : out of range
Considerable: obs_number=23324.0000, expected range: 24494.5311 28976.1716
DMSP-18/SSMIS RADIANCES CHANNEL 7 : out of range
Slight: obs_number=20546.0000, expected range: 21295.4682 26010.5845
gpsro
All TERRASAR-X SETTING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 1410.09
All TANDEM-X RISING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 9.57 1083.88
Radiosondes
LAND TEMP Q (G/KG) 28661 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.6213, expected range: 0.0000 1.4350
LAND TEMP Q (G/KG) 83525 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=4.8758, expected range: 0.0000 1.4399
LAND TEMP TEMPERATURE (K) 48601 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=10.1851, expected range: 0.0000 4.3525
Severe: avg_pge=0.8920, expected range: -0.0744 0.1090
LAND TEMP TEMPERATURE (K) 37011 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=6.6724, expected range: 0.0051 2.7747
LAND TEMP TEMPERATURE (K) 37055 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=6.9417, expected range: 0.0000 3.4465
LAND TEMP TEMPERATURE (K) 24688 PRESSURE LAYER 900-1200 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9046, expected range: -1.6247 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 32540 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=25.0248, expected range: 0.0000 10.8647
Severe: avg_pge=0.8788, expected range: -0.4122 0.5989
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
Severe: obs_number=200.0000, expected range: 62.3485 69.6515
HIGH RESO LAND TEMP TEMPERATURE (K) (3 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=283.0000, expected range: 90.1377 101.6123
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=1.4385, expected range: 0.1695 0.8530
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
Severe: obs_number=374.0000, expected range: 178.2051 194.4199
amdar
AMDAR WIND VECTOR DIFF (M/S) AU0186 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=18.8792, expected range: 0.0000 5.8960
WIGOS AMDAR TEMPERATURE (K) SL0071 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.8313, expected range: -0.4152 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) 2FYIR4JA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.3320, expected range: 0.0000 7.7807
WIGOS AMDAR WIND VECTOR DIFF (M/S) 3RPENVRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.6808, expected range: 0.0000 7.1318
WIGOS AMDAR Q (G/KG) XWGY0OZA PRESSURE LAYER 900-1200 (HPA) : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9849, expected range: -0.9846 0.7500
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 47636 PRESSURE LAYER 600-900 : out of range
Severe: rms_fgdepar=16.0615, expected range: 0.0000 7.6786
Severe: avg_pge=0.8440, expected range: -0.3420 0.5605
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 48480 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_pge=0.8541, expected range: -0.3366 0.7500
LAND PILOT WIND VECTOR DIFF (M/S) 67027 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_pge=0.8313, expected range: -0.4400 0.7500
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 76220 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8694, expected range: -1.7794 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42523 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8650, expected range: -0.5425 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 17135 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=603.7009, expected range: 0.0000 345.8035
Severely_persistent: avg_pge=0.8857, expected range: -1.1684 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=3.5714, expected range: 0.0000 0.0000
Severe: rms_fgdepar=133.5694, expected range: 17.6131 82.9099
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 89575 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=423.2329, expected range: 0.0000 232.3143
Severe: avg_pge=0.8612, expected range: -0.6205 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 68449 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8242, expected range: -0.9871 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 86260 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8986, expected range: -1.1783 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42851 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8569, expected range: -1.2324 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 78482 : out of range
Severe: rms_fgdepar=506.5788, expected range: 0.0000 210.8605
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42143 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8138, expected range: -1.2279 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 35416 : out of range
Severe: rms_fgdepar=349.6761, expected range: 0.0000 105.4750
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 35426 : out of range
Severe: rms_fgdepar=367.6730, expected range: 0.0000 124.1501
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 35229 : out of range
Severe: rms_fgdepar=323.3142, expected range: 0.0000 92.2928
Severe: avg_pge=0.8245, expected range: -0.0467 0.0512
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 98429 : out of range
Severe: rms_fgdepar=335.1168, expected range: 0.0000 139.1940
MANUAL LAND SYNOP RH2M (%) 43200 : out of range
Severe: rms_fgdepar=35.8023, expected range: 0.0000 17.8224
Severe: avg_pge=0.9193, expected range: -0.0155 0.0229
MANUAL LAND SYNOP RH2M (%) 63962 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9571, expected range: -2.0040 0.7500
MANUAL LAND SYNOP RH2M (%) 51777 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9517, expected range: -1.9910 0.7500
MANUAL LAND SYNOP RH2M (%) 35108 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9996, expected range: -0.2704 0.3517
MANUAL LAND SYNOP RH2M (%) 40829 : out of range
Severe: rms_fgdepar=24.5454, expected range: 0.0000 5.3306
BUFR LAND SYNOP SURFACE PRESSURE (PA) 30714 : out of range
Severe: rms_fgdepar=967.0413, expected range: 0.0000 228.3236
Severe: avg_pge=0.9386, expected range: -0.7471 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 27415 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8086, expected range: 0.2820 0.7500
BUFR LAND SYNOP RH2M (%) 40400 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8197, expected range: -0.0161 0.0276
BUFR LAND SYNOP RH2M (%) 33830 : out of range
Severe: rms_fgdepar=48.2241, expected range: 0.0000 35.7638
Severe: avg_pge=0.9845, expected range: -0.2600 0.3120
BUFR LAND SYNOP RH2M (%) 34560 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=25.2464, expected range: 0.0000 9.6863
BUFR LAND SYNOP RH2M (%) 61731 : out of range
Severe: rms_fgdepar=46.0601, expected range: 0.0000 20.2873
Severe: avg_pge=0.9490, expected range: -0.0056 0.0131
BUFR LAND SYNOP RH2M (%) 81737 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9988, expected range: -1.1682 0.7500
BUFR LAND SYNOP RH2M (%) 27008 : out of range
Severe: rms_fgdepar=43.7686, expected range: 0.0000 21.6829
ship
AUTOMATIC SHIP SURFACE PRESSURE (PA) 44058 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8257, expected range: 0.7088 0.7500
AUTOMATIC SHIP WIND VECTOR DIFF (M/S) 42013 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8653, expected range: -1.2634 0.7500
SHIP SURFACE PRESSURE (PA) WPTC : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8814, expected range: 0.6093 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) LF4J : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8695, expected range: 0.2994 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) AMOUK24 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=459.3487, expected range: 0.0000 250.0889
Severe: avg_pge=0.8745, expected range: -0.3851 0.6102
SHIP SURFACE PRESSURE (PA) 9HA4800 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8354, expected range: -1.3204 0.7500
SHIP SURFACE PRESSURE (PA) 9V3820 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8207, expected range: -1.2905 0.7500
SHIP SURFACE PRESSURE (PA) MABI4 : out of range
Severe: rms_fgdepar=343.1035, expected range: 0.0000 232.1983
Severe: avg_pge=0.8067, expected range: -0.8430 0.7500
SHIP SURFACE PRESSURE (PA) VRBL4 : out of range
Severe: rms_fgdepar=643.1997, expected range: 0.0000 368.1079
Severe: avg_pge=0.8139, expected range: -0.8526 0.7500
SHIP SURFACE PRESSURE (PA) C6BQ4 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8187, expected range: -1.1304 0.7500
SHIP SURFACE PRESSURE (PA) 9V2779 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9263, expected range: -0.5915 0.7500
SHIP SURFACE PRESSURE (PA) PBCO : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9017, expected range: -0.6939 0.7500
SHIP WIND VECTOR DIFF (M/S) V7LE8 : out of range
Severe: rms_fgdepar=17.8892, expected range: 0.0000 13.3628
Severe: avg_pge=0.9127, expected range: -1.0444 0.7500
ABBREVIATED SHIP WIND VECTOR DIFF (M/S) NWS0003 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8121, expected range: -1.1614 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 1701536 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8889, expected range: -0.4757 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2201558 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8721, expected range: -1.2631 0.7500
DRIBU WIND VECTOR DIFF (M/S) 53056 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9154, expected range: 0.7154 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2101634 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8482, expected range: -1.0899 0.7500
metar
METAR SURFACE PRESSURE (PA) VILD : out of range
Severe: rms_fgdepar=692.8002, expected range: 0.0000 191.1375
METAR SURFACE PRESSURE (PA) OPPS : out of range
Severe: rms_fgdepar=384.3178, expected range: 0.0000 215.2684
snow
BUFR LAND SYNOP SNOW (CM) : out of range
22 times in the last 10 days for at least one item
Severely_persistent: obs_number=747.0000, expected range: 960.3427 1080.9204
Severely_persistent: rms_fgdepar=0.1793, expected range: -0.0560 0.0711
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8381, expected range: 0.6584 0.8951
BUFR LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8382, expected range: 0.6578 0.8968
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89578 : out of range
Severe: avg_est_pge=0.8232, expected range: -0.5004 1.2043
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 68999 : out of range
Severe: rms_fgdepar=8.6689, expected range: 0.0000 2.7396
MANUAL LAND SYNOP 2M TEMPERATURE (K) 35532 : out of range
Severe: rms_fgdepar=7.9895, expected range: 0.0000 3.2466
MANUAL LAND SYNOP 2M TEMPERATURE (K) 83635 : out of range
Severe: rms_fgdepar=7.9253, expected range: 0.0000 3.6695
MANUAL LAND SYNOP 2M TEMPERATURE (K) 35416 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=8.1007, expected range: 0.0000 4.0935
MANUAL LAND SYNOP 2M TEMPERATURE (K) 68816 : out of range
Severe: rms_fgdepar=7.0087, expected range: 0.0000 3.8865
MANUAL LAND SYNOP 2M TEMPERATURE (K) 35426 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=9.1876, expected range: 0.0000 3.6627
METAR 2M TEMPERATURE (K) VEKO : out of range
Severe: rms_fgdepar=18.6359, expected range: 0.0000 5.5104
Severe: avg_est_pge=0.8008, expected range: -0.1666 0.3242
METAR 2M TEMPERATURE (K) LIMV : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=8.6936, expected range: 0.9244 4.1554
METAR 2M TEMPERATURE (K) KNEW : out of range
Severe: rms_fgdepar=7.2285, expected range: 0.7561 4.0614
LAND TEMP 2M TEMPERATURE (K) 04417 : out of range
3 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8282, expected range: 0.0457 1.1741
LAND TEMP 2M TEMPERATURE (K) 56137 : out of range
4 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8288, expected range: -0.0709 1.1781
LAND TEMP 2M TEMPERATURE (K) 56029 : out of range
3 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8516, expected range: -0.3063 1.3772
BUFR LAND SYNOP 2M TEMPERATURE (K) 89578 : out of range
Severe: avg_est_pge=0.8232, expected range: -0.5003 1.2020
rh2m
METAR RH2M (%) LGPA : out of range
Severe: rms_fgdepar=28.0714, expected range: 0.0000 13.8121