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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2021-04-09 12:00

amsua
METOP-B AMSUA RADIANCES (10 channels affected) : out of range
Considerable: obs_number=1987.0000, expected range: 2920.3496 5208.5916
cris
NOAA20 CRIS RADIANCES CHANNEL 144 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0935, expected range: -0.0866 -0.0831
NOAA20 CRIS RADIANCES CHANNEL 83 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0005, expected range: 0.0110 0.0184
NOAA20 CRIS RADIANCES CHANNEL 87 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0906, expected range: 0.1001 0.1096
NOAA20 CRIS RADIANCES CHANNEL 124 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0490, expected range: -0.0411 -0.0327
NOAA20 CRIS RADIANCES CHANNEL 125 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0975, expected range: -0.0901 -0.0841
NOAA20 CRIS RADIANCES CHANNEL 110 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0723, expected range: 0.0808 0.0839
mwhs2
FY-3D MWHS2 ALLSKY RADIANCES CHANNEL 7 : out of range
Severe: avg_norm_fgdepar=-0.1449, expected range: -0.0273 0.0624
gpsro
All COSMIC2-E2 GPSRO SETTING ALL HEIGHTS Global : all data missing
Severe: obs_number=0, expected range: 1149.00 3450.18
All COSMIC2-E6 GPSRO RISING ALL HEIGHTS Global : all data missing
Severe: obs_number=0, expected range: 1183.76 2692.71
Atmospheric Motion Vector
AQUA MODIS CLOUDY WV WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HP : out of range
Slight: stdev_fgdepar=2.4184, expected range: 1.7667 2.1728
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1010-1011 (HPA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-5.7304, expected range: -5.1319 -4.5541
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1600-1601 (HPA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-8.7022, expected range: -7.5458 -7.4519
Radiosondes
BUFR TEMP DESCENT WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HPA) : missing
5 times in the last 10 days for at least one item
Severely_persistent: obs_number=0.0000, expected range: 0.0000 509.6135
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : missing
Severe: obs_number=0.0000, expected range: 107.9293 152.5707
LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: obs_number=645.0000, expected range: 133.1820 451.5680
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 300-600 (HPA) : out of range
Considerable: obs_number=189.0000, expected range: 249.6013 310.6487
HIGH RESO LAND TEMP Q (G/KG) (2 pressure layers affected) : out of range
Considerable: obs_number=615.0000, expected range: 503.0306 550.2194
amdar
ADS-C WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : missing
4 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 0.0000 269.7652
synop
MANUAL LAND SYNOP RH2M (%) 41560 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9268, expected range: -1.2184 0.7500
MANUAL LAND SYNOP RH2M (%) 42915 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9270, expected range: -2.0125 0.7500
MANUAL LAND SYNOP RH2M (%) 42387 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9804, expected range: -1.8530 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 51818 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8656, expected range: -1.5584 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=-58.3944, expected range: -86.3899 -28.9606
Severely_persistent: rms_fgdepar=58.6744, expected range: 30.1481 85.7600
AUTOMATIC LAND SYNOP RH2M (%) 89011 : out of range
Severe: rms_fgdepar=35.0520, expected range: 0.0000 16.8827
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 87880 : out of range
Severe: rms_fgdepar=366.7291, expected range: 0.0000 191.5561
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 62225 : out of range
Severe: avg_fgdepar=601.1820, expected range: 261.6658 756.1190
Severe: rms_fgdepar=601.1820, expected range: 261.6654 756.1195
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40656 : out of range
Severe: avg_fgdepar=606.0596, expected range: -4.5410 189.2379
Severe: rms_fgdepar=606.0596, expected range: 0.0000 189.2379
Severe: avg_pge=0.8866, expected range: -0.3705 0.4206
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43318 : out of range
Severe: rms_fgdepar=332.9574, expected range: 0.0000 148.0458
MANUAL LAND SYNOP RH2M (%) 43200 : out of range
Severe: rms_fgdepar=46.4928, expected range: 0.0000 32.4836
Severe: avg_pge=0.8981, expected range: -0.1164 0.1392
MANUAL LAND SYNOP RH2M (%) 43121 : out of range
Severe: rms_fgdepar=33.5736, expected range: 0.0000 17.6408
MANUAL LAND SYNOP RH2M (%) 62131 : out of range
Severe: rms_fgdepar=31.4448, expected range: 0.0000 4.8995
MANUAL LAND SYNOP RH2M (%) 42946 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9426, expected range: -0.4801 0.7500
BUFR LAND SYNOP Z (M) 56172 : out of range
Severe: avg_pge=0.9630, expected range: -1.7416 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24826 : out of range
Severe: rms_fgdepar=619.4299, expected range: 0.0000 208.5513
BUFR LAND SYNOP SURFACE PRESSURE (PA) 28766 : out of range
Severe: rms_fgdepar=436.9441, expected range: 0.0000 114.2503
BUFR LAND SYNOP SURFACE PRESSURE (PA) 61699 : out of range
Severe: rms_fgdepar=443.5029, expected range: 0.0000 73.3745
BUFR LAND SYNOP RH2M (%) 94300 : out of range
Severe: avg_fgdepar=53.1141, expected range: -13.4829 18.4636
Severe: rms_fgdepar=53.1141, expected range: 0.0000 15.4148
Severe: avg_pge=0.9998, expected range: 0.0013 0.0041
BUFR LAND SYNOP RH2M (%) 34712 : out of range
Severe: rms_fgdepar=40.0008, expected range: 0.0000 16.9332
BUFR LAND SYNOP RH2M (%) 22974 : out of range
Severe: rms_fgdepar=42.4934, expected range: 0.0000 16.0346
BUFR LAND SYNOP RH2M (%) 29808 : out of range
Severe: rms_fgdepar=30.8930, expected range: 0.0000 11.7002
BUFR LAND SYNOP RH2M (%) 08068 : out of range
Severe: rms_fgdepar=30.6717, expected range: 0.0000 15.1568
BUFR LAND SYNOP RH2M (%) 02329 : out of range
Severe: rms_fgdepar=34.4140, expected range: 0.0000 19.6021
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=223.0000, expected range: 47.6424 128.6076
Considerable: obs_number=119.0000, expected range: 57.0920 80.6580
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VEP717 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8311, expected range: 0.0906 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) V7KD8 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=21.4858, expected range: -26.0522 69.8244
Severely_persistent: rms_fgdepar=21.4858, expected range: 0.0000 69.8244
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) CKR759 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8684, expected range: -0.2632 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRHY7 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-503.8818, expected range: -2167.1581 1437.9066
Severely_persistent: rms_fgdepar=503.8818, expected range: 41.1492 927.7782
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRCC8 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8096, expected range: -1.2109 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) SJA4RSK : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-549.7277, expected range: -950.4001 806.6772
Severely_persistent: rms_fgdepar=549.8033, expected range: -734.5542 923.8109
Severely_persistent: avg_pge=0.9062, expected range: -1.5866 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) ZCDT2 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=742.4004, expected range: 0.0000 876.5607
BUFR SHIP SYNOP SURFACE PRESSURE (PA) D5WQ4 : out of range
Severe: rms_fgdepar=556.8249, expected range: 0.0000 337.6055
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRJT6 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=678.9127, expected range: -533.2003 884.2960
Severe: rms_fgdepar=679.3982, expected range: 0.0000 824.1551
Severe: avg_pge=0.8476, expected range: -1.1201 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WDJK : out of range
Severe: avg_fgdepar=-517.9646, expected range: -94.4193 363.1792
Severe: rms_fgdepar=706.1488, expected range: 0.0000 360.0028
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 7KDT : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=515.4058, expected range: -903.9698 1231.9294
Severe: rms_fgdepar=515.4058, expected range: 0.0000 1082.0597
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 2200189 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8347, expected range: -0.5698 0.7500
MOORED BUOYS WIND VECTOR DIFF (M/S) 4600001 : out of range
Severe: rms_fgdepar=15.8425, expected range: 0.0000 4.2857
MOORED BUOYS SURFACE PRESSURE (PA) 4600076 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=302.2973, expected range: 0.0000 169.1532
DRIFTING BUOYS SURFACE PRESSURE (PA) 5601653 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8819, expected range: -1.3255 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5401698 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8399, expected range: -0.7637 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5501669 : out of range
Severe: rms_fgdepar=427.2934, expected range: 0.0000 120.9681
metar
METAR SURFACE PRESSURE (PA) OPMJ : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-779.3790, expected range: -1456.7843 1104.6568
Severely_persistent: rms_fgdepar=781.4900, expected range: -946.6965 1381.5679
Severely_persistent: avg_pge=0.8719, expected range: -1.2248 0.7500
METAR SURFACE PRESSURE (PA) FZWA : out of range
Severe: rms_fgdepar=466.7921, expected range: 0.0000 246.7478
METAR SURFACE PRESSURE (PA) HDAM : out of range
Severe: rms_fgdepar=509.6071, expected range: 0.0000 242.0580
METAR SURFACE PRESSURE (PA) VOCP : out of range
Severe: rms_fgdepar=586.8338, expected range: 0.0000 97.7811
METAR SURFACE PRESSURE (PA) LPMR : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=311.8616, expected range: 0.0000 116.5763
METAR SURFACE PRESSURE (PA) SPPY : out of range
Severe: rms_fgdepar=656.0009, expected range: 11.3029 251.7041
AUTOMATIC METAR SURFACE PRESSURE (PA) PAMD : out of range
Severe: rms_fgdepar=306.9196, expected range: 0.0000 173.1306
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=-69.8536, expected range: -82.2487 -70.1619
Severely_persistent: rms_fgdepar=69.8536, expected range: 70.1619 82.2487
AUTOMATIC LAND SYNOP SNOW (CM) 71134 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-50.8572, expected range: -55.3145 -37.4649
Severely_persistent: rms_fgdepar=50.8572, expected range: 37.4649 55.3145
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=-52.2936, expected range: -60.3549 -54.6161
Severely_persistent: rms_fgdepar=52.2936, expected range: 54.6161 60.3549
MANUAL LAND SYNOP SNOW (CM) 16021 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=57.0488, expected range: 49.3161 61.0345
Severely_persistent: rms_fgdepar=57.0488, expected range: 49.3161 61.0345
MANUAL LAND SYNOP SNOW (CM) 71816 : out of range
34 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-70.9172, expected range: -87.4075 -43.8774
Severely_persistent: rms_fgdepar=70.9172, expected range: 46.1414 87.9194
BUFR LAND SYNOP SNOW (CM) 71816 : out of range
34 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-70.7567, expected range: -87.2862 -43.8505
Severely_persistent: rms_fgdepar=70.7567, expected range: 46.0919 87.8125
AUTOMATIC LAND SYNOP SNOW (CM) 71773 : out of range
Severe: rms_fgdepar=19.7312, expected range: 0.0000 3.4620
AUTOMATIC LAND SYNOP SNOW (CM) 71365 : out of range
Severe: rms_fgdepar=26.1630, expected range: 6.1001 17.4480
t2m
MANUAL LAND SYNOP 2M TEMPERATURE (K) 25700 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-12.0006, expected range: -20.0506 13.9196
Severely_persistent: rms_fgdepar=12.3827, expected range: 0.0000 16.9248
BUFR LAND SYNOP 2M TEMPERATURE (K) 25700 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-12.0646, expected range: -20.1073 13.8740
Severely_persistent: rms_fgdepar=12.4464, expected range: 0.0000 17.0164
METAR 2M TEMPERATURE (K) GQPA : out of range
Severe: avg_fgdepar=-12.5541, expected range: -5.1114 5.4987
Severe: rms_fgdepar=12.5541, expected range: 0.0000 7.0673
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=4622.0000, expected range: 6604.0585 8906.1768
rh2m
MANUAL LAND SYNOP RH2M (%) 34712 : out of range
Severe: rms_fgdepar=31.9528, expected range: 0.0000 17.4562