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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2021-04-05 12:00

amsua
METOP-A AMSUA RADIANCES CHANNEL 6 : out of range
Considerable: obs_number=15268.0000, expected range: 17551.2072 26434.5575
iasi
METOP-A IASI RADIANCES CHANNEL 3452 : out of range
Considerable: avg_biascorr=-0.1440, expected range: -0.4205 -0.2380
METOP-B IASI RADIANCES CHANNEL 3252 : out of range
1 times in the last 10 days for at least one item
Considerable: avg_biascorr=-0.0981, expected range: -0.2991 -0.1679
METOP-B IASI RADIANCES CHANNEL 3452 : out of range
1 times in the last 10 days for at least one item
Considerable: avg_biascorr=-0.1571, expected range: -0.3765 -0.2319
METOP-C IASI RADIANCES CHANNEL 5401 : out of range
Slight: stdev_fgdepar=0.5472, expected range: 0.4620 0.5240
cris
NOAA20 CRIS RADIANCES CHANNEL 83 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0008, expected range: 0.0110 0.0226
NOAA20 CRIS RADIANCES CHANNEL 115 : out of range
2 times in the last 10 days for at least one item
Considerable: avg_biascorr=-0.3401, expected range: -0.3227 -0.2928
gpsro
All COSMIC2-E4 GPSRO RISING ALL HEIGHTS Global : all data missing
Severe: obs_number=0, expected range: 1010.98 2580.52
Atmospheric Motion Vector
METEOSAT-8 AMV CLOUDY WV2 WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 : out of range
Considerable: obs_number=407.0000, expected range: 29.3076 236.6776
Radiosondes
LAND TEMP TEMPERATURE (K) 68906 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=26.7457, expected range: -0.8776 0.4345
Severe: rms_fgdepar=26.7477, expected range: 0.0000 5.3110
Severe: avg_pge=0.9328, expected range: -0.0789 0.1677
LAND TEMP WIND VECTOR DIFF (M/S) 34731 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_pge=0.8128, expected range: -0.6197 0.7500
BUFR TEMP DESCENT Q (G/KG) PRESSURE LAYER 900-1200 (HPA) : missing
1 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 0.0000 437.4626
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 900-1200 (HPA) : out of range
Considerable: obs_number=396.0000, expected range: 309.4752 365.7748
HIGH RESO LAND TEMP Q (G/KG) (2 pressure layers affected) : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=1571.0000, expected range: 1361.0417 1456.9583
Considerable: obs_number=1194.0000, expected range: 967.8940 1032.3560
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
Considerable: obs_number=474.0000, expected range: 369.6534 400.0966
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=281.0000, expected range: 340.6771 364.6562
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=63.0000, expected range: 86.7723 119.4777
amdar
ADS-C WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : missing
5 times in the last 10 days for at least one item
Severely_persistent: obs_number=0.0000, expected range: 0.0000 270.8457
AMDAR TEMPERATURE (K) 00040279 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=7.7212, expected range: 0.0000 2.9330
Severe: avg_pge=0.8420, expected range: -0.2456 0.4418
ADS-C WIND VECTOR DIFF (M/S) YTSSPWBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=22.0496, expected range: 0.0000 19.4752
ADS-C WIND VECTOR DIFF (M/S) XO0UGJJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=23.0544, expected range: -2.3986 9.4659
Severe: rms_fgdepar=26.7390, expected range: 0.0000 11.8166
ADS-C WIND VECTOR DIFF (M/S) WHZBFCRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.7777, expected range: 0.0000 13.7780
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 42165 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_fgdepar=46.4807, expected range: -2.0462 7.2651
Severe: rms_fgdepar=46.4807, expected range: 0.0000 8.7309
Severe: avg_pge=0.9556, expected range: -0.3915 0.7053
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 17928 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=572.5538, expected range: 109.8791 898.5485
Severely_persistent: avg_pge=0.8830, expected range: 0.2621 0.7500
MANUAL LAND SYNOP RH2M (%) 42603 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9768, expected range: -1.4824 0.7500
MANUAL LAND SYNOP RH2M (%) 42473 : out of range
27 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9985, expected range: 0.5359 0.7500
MANUAL LAND SYNOP RH2M (%) 42709 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9939, expected range: -0.0520 0.7500
MANUAL LAND SYNOP RH2M (%) 42969 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9829, expected range: -1.1726 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 29471 : out of range
26 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=879.9598, expected range: -1225.1780 1490.3962
Severely_persistent: rms_fgdepar=879.9598, expected range: -1163.0184 1616.0556
Severely_persistent: avg_pge=0.9354, expected range: -1.9544 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 13464 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8263, expected range: -1.0839 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=-58.8905, expected range: -75.1490 -35.8582
Severely_persistent: rms_fgdepar=58.9686, expected range: 36.9460 74.6180
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 17847 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=527.8414, expected range: -616.1723 1268.6705
Severe: rms_fgdepar=528.4672, expected range: 0.0000 1222.6786
Severe: avg_pge=0.8827, expected range: -1.5008 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 64040 : out of range
Severe: avg_fgdepar=-870.5163, expected range: -985.5788 804.5428
Severe: rms_fgdepar=870.5163, expected range: 0.0000 763.1298
Severe: avg_pge=0.9343, expected range: -1.4368 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 62011 : out of range
Severe: rms_fgdepar=745.0907, expected range: 0.0000 483.4363
MANUAL LAND SYNOP RH2M (%) 42792 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=1.0000, expected range: 0.4796 0.7500
MANUAL LAND SYNOP RH2M (%) 42273 : out of range
Severe: rms_fgdepar=45.4241, expected range: 0.0000 15.8541
MANUAL LAND SYNOP RH2M (%) 82983 : out of range
Severe: rms_fgdepar=38.1368, expected range: 2.4925 20.3666
MANUAL LAND SYNOP RH2M (%) 41624 : out of range
Severe: rms_fgdepar=30.8509, expected range: 0.0000 15.6810
MANUAL LAND SYNOP RH2M (%) 42946 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9354, expected range: -0.7732 0.7500
MANUAL LAND SYNOP RH2M (%) 43086 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9998, expected range: -1.4048 0.7500
MANUAL LAND SYNOP RH2M (%) 42807 : out of range
Severe: rms_fgdepar=39.2443, expected range: 0.0000 28.2619
Severe: avg_pge=0.9737, expected range: -0.1398 0.1689
BUFR LAND SYNOP SURFACE PRESSURE (PA) 20891 : out of range
Severe: rms_fgdepar=313.7061, expected range: 0.0000 127.8709
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48074 : out of range
Severe: avg_pge=0.8094, expected range: -1.5471 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 20046 : out of range
Severe: rms_fgdepar=342.0889, expected range: 0.0000 190.7328
BUFR LAND SYNOP SURFACE PRESSURE (PA) 51818 : out of range
Severe: rms_fgdepar=522.3677, expected range: 0.0000 212.2433
BUFR LAND SYNOP SURFACE PRESSURE (PA) 93498 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=378.6543, expected range: 0.0000 168.4846
Severe: avg_pge=0.8770, expected range: -0.5942 0.7500
BUFR LAND SYNOP RH2M (%) 06464 : out of range
Severe: rms_fgdepar=31.2200, expected range: 0.0000 13.8728
BUFR LAND SYNOP RH2M (%) 72506 : out of range
Severe: avg_fgdepar=50.6558, expected range: -30.7331 55.8113
Severe: rms_fgdepar=50.6558, expected range: 0.0000 57.5203
Severe: avg_pge=0.9681, expected range: -0.7151 0.7500
BUFR LAND SYNOP RH2M (%) 02476 : out of range
Severe: rms_fgdepar=34.0040, expected range: 0.0000 14.6437
BUFR LAND SYNOP RH2M (%) 34238 : out of range
Severe: rms_fgdepar=35.7504, expected range: 0.0000 19.7054
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) EUCDE56 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9021, expected range: 0.0955 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HA3373 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=915.2607, expected range: -996.9112 1918.3688
Severely_persistent: rms_fgdepar=915.2607, expected range: 0.0000 1976.3536
Severely_persistent: avg_pge=0.8889, expected range: -0.9296 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6TQ6 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-685.3092, expected range: -824.3782 -497.9228
Severely_persistent: rms_fgdepar=686.1896, expected range: 499.8255 823.6000
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRHY7 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-507.0447, expected range: -1371.9453 326.5195
Severely_persistent: rms_fgdepar=507.0447, expected range: 0.0000 1090.4249
Severely_persistent: avg_pge=0.8300, expected range: 0.5175 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) SJA4RSK : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-586.5666, expected range: -999.2941 875.6129
Severely_persistent: rms_fgdepar=586.7814, expected range: -764.7510 961.1257
Severely_persistent: avg_pge=0.9139, expected range: -1.2448 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) EUMDE35 : out of range
Severe: rms_fgdepar=18.1286, expected range: 0.0000 11.7847
Severe: avg_pge=0.8955, expected range: -0.6078 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V9402 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=659.0211, expected range: 370.7822 1081.9889
Severe: rms_fgdepar=664.3565, expected range: 373.5727 1080.4055
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OUQK2 : out of range
Severe: rms_fgdepar=682.2821, expected range: 0.0000 561.7765
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OXZO2 : out of range
Severe: avg_fgdepar=651.6478, expected range: -884.3639 1347.6871
Severe: rms_fgdepar=651.6478, expected range: 0.0000 1338.2739
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 1501743 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8712, expected range: -1.0760 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6202694 : out of range
21 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8923, expected range: -0.6201 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4401541 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=488.4835, expected range: 0.0000 129.5351
DRIFTING BUOYS SURFACE PRESSURE (PA) 4402687 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=340.4826, expected range: 0.0000 77.9002
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101768 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=367.5483, expected range: 0.0000 114.6228
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101719 : out of range
Severe: avg_fgdepar=561.5425, expected range: -108.4754 104.0443
Severe: rms_fgdepar=564.3311, expected range: 0.0000 150.5474
Severe: avg_pge=0.9018, expected range: -0.1070 0.1259
metar
AUTOMATIC METAR SURFACE PRESSURE (PA) EGRE : out of range
Severe: avg_fgdepar=532.2423, expected range: -82.0573 409.2404
Severe: rms_fgdepar=534.0266, expected range: 0.0000 404.5695
Severe: avg_pge=0.8033, expected range: -0.7630 0.7500
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=-76.4450, expected range: -81.8692 -68.4300
Severely_persistent: rms_fgdepar=76.4450, expected range: 68.4300 81.8692
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=-57.3745, expected range: -59.6391 -55.6632
Severely_persistent: rms_fgdepar=57.3745, expected range: 55.6632 59.6391
MANUAL LAND SYNOP SNOW (CM) 71816 : out of range
32 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-76.0720, expected range: -75.5539 -45.5325
Severely_persistent: rms_fgdepar=76.0720, expected range: 45.5359 75.5613
BUFR LAND SYNOP SNOW (CM) 01192 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-69.0278, expected range: -83.9309 -62.4160
Severely_persistent: rms_fgdepar=69.0286, expected range: 62.4153 83.9354
BUFR LAND SYNOP SNOW (CM) 71816 : out of range
32 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-75.9731, expected range: -75.4470 -45.5069
Severely_persistent: rms_fgdepar=75.9731, expected range: 45.5030 75.4690
BUFR LAND SYNOP SNOW (CM) 01450 : out of range
Severe: avg_fgdepar=51.8603, expected range: -6.7580 3.3730
Severe: rms_fgdepar=70.9314, expected range: 0.0000 5.9110
t2m
MANUAL LAND SYNOP 2M TEMPERATURE (K) 25248 : out of range
Severe: avg_fgdepar=-14.9669, expected range: -18.3565 11.5459
Severe: rms_fgdepar=14.9669, expected range: 0.0000 16.2653
METAR 2M TEMPERATURE (K) KNID : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=12.1114, expected range: 0.0000 15.1765
BUFR LAND SYNOP 2M TEMPERATURE (K) 25248 : out of range
Severe: avg_fgdepar=-15.0490, expected range: -18.3911 11.4788
Severe: rms_fgdepar=15.0490, expected range: 0.0000 16.3577