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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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

iasi
All METOP-A/IASI RADIANCES ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 4425.81 28064.99
METOP-B/IASI RADIANCES (395 channels affected) : out of range
Severe: obs_number=9963.0000, expected range: 21467.5278 22963.6301
METOP-C/IASI RADIANCES (394 channels affected) : out of range
Severe: obs_number=57601.0000, expected range: 117628.2482 125553.8058
METOP-B/IASI RADIANCES (48 channels affected) : out of range
Slight: avg_fgdepar=0.0249, expected range: 0.0348 0.1202
cris
All NPP/CRIS RADIANCES ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 0.00 340113.28
atms
NOAA20/ATMS RADIANCES (7 channels affected) : out of range
Considerable: obs_number=3775.0000, expected range: 3088.5114 3635.7109
gpsro
All TERRASAR-X SETTING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 1403.65
All TANDEM-X RISING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 1116.15
METOP-B/GRAS SETTING HEIGHT 18 : out of range
Slight: obs_number=1042.0000, expected range: 819.6590 1021.6383
METOP-B/GRAS SETTING HEIGHT 23 : out of range
Slight: obs_number=1212.0000, expected range: 959.3876 1186.3902
Atmospheric Motion Vector
METEOSAT-11/AMV CLOUDY WV2 WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 : out of range
Slight: obs_number=3155.0000, expected range: 1709.5271 2978.1200
METEOSAT-11/AMV IR3 WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HP : out of range
Slight: avg_press=935.3112, expected range: 913.5359 932.8348
resat
NOAA-19/SBUV OZONE, TOP PRESSURE LAYER 0-1 (HPA) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=1216.0000, expected range: 2889.0322 5458.3011
Radiosondes
LAND TEMP TEMPERATURE (K) 54374 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8698, expected range: -1.4067 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 76654 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=19.8180, expected range: 0.0000 6.6571
LAND TEMP WIND VECTOR DIFF (M/S) 34172 PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9191, expected range: -0.4965 0.7348
LAND TEMP WIND VECTOR DIFF (M/S) 76654 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.8839, expected range: -0.5724 0.7500
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
Severe: obs_number=181.0000, expected range: 87.2810 94.4690
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
Severe: obs_number=126.0000, expected range: 54.1757 73.3243
All HIGH RESO SEA TEMP TEMPERATURE (K) ALL LAYERS Global : all data missing
Severe: obs_number=0, expected range: 0.00 979.09
amdar
WIGOS AMDAR TEMPERATURE (K) SL0071 (4 pressure layers affected) : out of range
Severe: rms_fgdepar=6.9624, expected range: 0.0000 1.0733
WIGOS AMDAR TEMPERATURE (K) SL0071 (2 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8367, expected range: -0.0121 0.0141
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 47406 PRESSURE LAYER 900-1200 : out of range
Severe: rms_fgdepar=16.9808, expected range: 0.0000 7.7803
Severe: avg_pge=0.9083, expected range: -0.3381 0.7500
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 67083 PRESSURE LAYER 300-600 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8054, expected range: -0.5526 0.7500
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42711 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9080, expected range: -1.3131 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42523 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8722, expected range: -1.3274 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42894 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=965.5482, expected range: -496.4100 725.1408
Severely_persistent: avg_pge=0.9392, expected range: -1.5411 0.7500
BUFR LAND SYNOP RH2M (%) 02468 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=59.7885, expected range: 0.0000 38.2618
Severely_persistent: avg_pge=0.9977, expected range: -1.7007 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 68651 : out of range
Severe: avg_pge=0.8356, expected range: -0.0943 0.1141
AUTOMATIC LAND SYNOP RH2M (%) 68443 : out of range
Severe: rms_fgdepar=28.7150, expected range: 0.0000 13.5012
AUTOMATIC LAND SYNOP RH2M (%) 68727 : out of range
Severe: avg_pge=0.8748, expected range: -0.0388 0.0515
AUTOMATIC LAND SYNOP RH2M (%) 68819 : out of range
Severe: avg_pge=0.9631, expected range: -0.0733 0.0922
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 89575 : out of range
Severe: rms_fgdepar=428.5600, expected range: 0.0000 204.9307
Severe: avg_pge=0.8641, expected range: -0.7212 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 68449 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8068, expected range: -1.4136 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 89799 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=470.5211, expected range: 0.0000 294.6275
Severe: avg_pge=0.8706, expected range: -1.1883 0.7500
MANUAL LAND SYNOP Z (M) 38462 : out of range
Severe: avg_pge=0.8236, expected range: -0.2731 0.3197
MANUAL LAND SYNOP RH2M (%) 68442 : out of range
Severe: rms_fgdepar=30.9223, expected range: 0.0000 13.6631
MANUAL LAND SYNOP RH2M (%) 60545 : out of range
Severe: avg_pge=0.8281, expected range: -0.1972 0.2318
MANUAL LAND SYNOP RH2M (%) 17096 : out of range
Severe: rms_fgdepar=34.6221, expected range: 0.0000 19.5478
MANUAL LAND SYNOP RH2M (%) 41718 : out of range
Severe: avg_pge=0.8629, expected range: -0.0219 0.0387
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40691 : out of range
Severe: rms_fgdepar=547.0022, expected range: 0.0000 147.6457
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 31102 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=859.4379, expected range: 0.0000 199.9657
Severe: avg_pge=0.8822, expected range: -0.5659 0.7080
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 13622 : out of range
Severe: rms_fgdepar=351.2461, expected range: 0.0000 315.4396
Severe: avg_pge=0.8285, expected range: -0.9351 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42803 : out of range
Severe: rms_fgdepar=499.5045, expected range: 0.0000 202.1110
Severe: avg_pge=0.8825, expected range: -0.8203 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 97284 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=374.9451, expected range: 0.0000 109.5628
Severe: avg_pge=0.8275, expected range: -1.2040 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43025 : out of range
Severe: rms_fgdepar=454.3463, expected range: 0.0000 153.5585
Severe: avg_pge=0.8790, expected range: -0.6240 0.7477
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 37787 : out of range
Severe: avg_pge=0.8094, expected range: -0.8903 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42588 : out of range
Severe: rms_fgdepar=1088.8031, expected range: 0.0000 595.4992
Severe: avg_pge=0.9466, expected range: -1.3282 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42309 : out of range
Severe: rms_fgdepar=531.9426, expected range: 0.0000 272.1444
BUFR LAND SYNOP RH2M (%) 40400 : out of range
Severe: avg_pge=0.9755, expected range: -0.6891 0.7500
BUFR LAND SYNOP RH2M (%) 94451 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9676, expected range: -1.6424 0.7500
BUFR LAND SYNOP RH2M (%) 72592 : out of range
Severe: rms_fgdepar=21.1084, expected range: 0.0000 8.9155
BUFR LAND SYNOP RH2M (%) 71504 : out of range
Severe: rms_fgdepar=28.3262, expected range: 0.0000 15.1342
BUFR LAND SYNOP RH2M (%) 02485 : out of range
Severe: rms_fgdepar=51.1453, expected range: 0.0000 15.6949
Severe: avg_pge=0.9899, expected range: 0.0004 0.0054
BUFR LAND SYNOP RH2M (%) 40439 : out of range
Severe: avg_pge=1.0000, expected range: -1.0772 0.7500
BUFR LAND SYNOP RH2M (%) : out of range
Severe: obs_number=127.0000, expected range: 128.0000 128.0000
BUFR LAND SYNOP SURFACE PRESSURE (PA) 27983 : out of range
Severe: rms_fgdepar=325.4922, expected range: 0.0000 145.0053
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94654 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=434.1790, expected range: 0.0000 157.2074
Severe: avg_pge=0.8610, expected range: -0.8587 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 27415 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9329, expected range: 0.3461 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 78016 : out of range
Severe: rms_fgdepar=321.0340, expected range: 0.0000 77.3416
BUFR LAND SYNOP SURFACE PRESSURE (PA) 33156 : out of range
Severe: rms_fgdepar=410.9962, expected range: 0.0000 185.8195
Severe: avg_pge=0.8616, expected range: -0.5457 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 25956 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=570.4886, expected range: 0.0000 215.7613
BUFR LAND SYNOP SURFACE PRESSURE (PA) 28676 : out of range
Severe: rms_fgdepar=384.4295, expected range: 0.0000 137.1559
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24967 : out of range
Severe: rms_fgdepar=552.3951, expected range: 0.0000 240.4401
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=193.0000, expected range: 195.0000 195.0000
MANUAL LAND SYNOP Z (M) : out of range
1 times in the last 10 days for at least one item
Slight: rms_fgdepar=207.3832, expected range: 111.1200 190.9761
ship
AUTOMATIC SHIP WIND VECTOR DIFF (M/S) 42013 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8125, expected range: -1.2913 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) AMOUK24 : out of range
Severe: rms_fgdepar=450.7661, expected range: 0.0000 282.6918
Severe: avg_pge=0.8678, expected range: -0.3879 0.6276
SHIP WIND VECTOR DIFF (M/S) 9V8843 : out of range
Severe: rms_fgdepar=15.3041, expected range: 0.0000 13.3509
Severe: avg_pge=0.8832, expected range: -0.5553 0.7500
SHIP SURFACE PRESSURE (PA) VRLA2 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9016, expected range: -1.3648 0.7500
SHIP SURFACE PRESSURE (PA) VRRD2 : out of range
Severe: rms_fgdepar=502.2864, expected range: 0.0000 298.3644
Severe: avg_pge=0.8006, expected range: -0.7394 0.7500
SHIP SURFACE PRESSURE (PA) 9V8843 : out of range
Severe: rms_fgdepar=1392.9199, expected range: 0.0000 265.1073
Severe: avg_pge=0.9507, expected range: -1.1139 0.7500
SHIP SURFACE PRESSURE (PA) VRDJ3 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=1112.2832, expected range: 0.0000 921.8391
Severe: avg_pge=0.9385, expected range: -0.9813 0.7500
SHIP SURFACE PRESSURE (PA) 9V2779 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9199, expected range: -0.5012 0.7500
buoy
MOORED BUOYS SURFACE PRESSURE (PA) 6101001 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8548, expected range: -0.6578 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-31.8214, expected range: -4.8751 5.4114
Severely_persistent: rms_fgdepar=129.4462, expected range: 24.0577 83.2465
Considerable: obs_number=308.0000, expected range: 323.1521 365.2689
Considerable: obs_number=308.0000, expected range: 323.1521 365.2689
DRIFTING BUOYS SURFACE PRESSURE (PA) 5301764 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=436.1909, expected range: -254.5975 364.5229
Severely_persistent: avg_pge=0.8343, expected range: -1.3445 0.7500
DRIBU WIND VECTOR DIFF (M/S) 53056 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9185, expected range: 0.7153 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1701536 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8836, expected range: -0.4929 0.7500
metar
METAR SURFACE PRESSURE (PA) SBBH : out of range
Severe: rms_fgdepar=316.0005, expected range: 0.0000 88.5724
METAR SURFACE PRESSURE (PA) SBLO : out of range
Severe: rms_fgdepar=324.5546, expected range: 0.0000 83.2030
METAR SURFACE PRESSURE (PA) MMZO : out of range
Severe: rms_fgdepar=439.6496, expected range: 0.0000 124.7476
METAR SURFACE PRESSURE (PA) SBIP : out of range
Severe: rms_fgdepar=421.2236, expected range: 0.0000 150.0913
METAR SURFACE PRESSURE (PA) FNCT : out of range
Severe: rms_fgdepar=546.5674, expected range: 0.0000 314.9520
Severe: avg_pge=0.8239, expected range: -0.4930 0.5659
METAR SURFACE PRESSURE (PA) VECX : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=682.9847, expected range: 0.0000 533.9701
Severe: avg_pge=0.8432, expected range: -0.8664 0.7500
snow
AUTOMATIC LAND SYNOP SNOW (CM) : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=0.3780, expected range: -0.0218 0.0242
Severely_persistent: avg_fgdepar=0.3780, expected range: -0.0502 0.0969
Severely_persistent: rms_fgdepar=4.6849, expected range: -0.4068 0.5027
Severely_persistent: rms_fgdepar=4.6849, expected range: -0.5144 1.0271
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=0.8071, expected range: 0.6595 0.8957
LAND TEMP 2M TEMPERATURE (K) 89009 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8081, expected range: 0.4182 1.1091
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=0.8117, expected range: 0.6587 0.8975
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
7 times in the last 10 days for at least one item
Severely_persistent: obs_number=214.0000, expected range: 77.0932 154.9639
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 68817 : out of range
Severe: rms_fgdepar=8.3548, expected range: 0.0000 4.2627
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 68819 : out of range
Severe: rms_fgdepar=7.7438, expected range: 0.0000 3.9374
MANUAL LAND SYNOP 2M TEMPERATURE (K) 82445 : out of range
Severe: rms_fgdepar=9.5025, expected range: 0.0000 3.3207
MANUAL LAND SYNOP 2M TEMPERATURE (K) 17218 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.1919, expected range: 0.0000 3.5027
MANUAL LAND SYNOP 2M TEMPERATURE (K) 40948 : out of range
Severe: rms_fgdepar=9.3083, expected range: 0.0000 4.2703
MANUAL LAND SYNOP 2M TEMPERATURE (K) 82098 : out of range
Severe: rms_fgdepar=10.6517, expected range: 0.0000 2.3708
MANUAL LAND SYNOP 2M TEMPERATURE (K) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=233.0000, expected range: 232.0000 232.0000
METAR 2M TEMPERATURE (K) EFSA : out of range
Severe: rms_fgdepar=7.0308, expected range: 0.0000 3.7318
METAR 2M TEMPERATURE (K) TLPC : out of range
Severe: rms_fgdepar=10.9725, expected range: 1.0959 3.2787
METAR 2M TEMPERATURE (K) KMOD : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.5209, expected range: 1.5033 4.9381
METAR 2M TEMPERATURE (K) SKBG : out of range
Severe: rms_fgdepar=7.3031, expected range: 0.0000 3.7260
METAR 2M TEMPERATURE (K) LTBL : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.0315, expected range: 0.4743 4.0703
METAR 2M TEMPERATURE (K) LIMV : out of range
Severe: rms_fgdepar=8.6646, expected range: 0.9425 4.0968
BUFR LAND SYNOP 2M TEMPERATURE (K) 17218 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.0412, expected range: 0.0000 3.6403
rh2m
MANUAL LAND SYNOP RH2M (%) 68737 : out of range
Severe: rms_fgdepar=38.4818, expected range: 0.0000 19.8995
MANUAL LAND SYNOP RH2M (%) 82098 : out of range
Severe: rms_fgdepar=31.8188, expected range: 0.0000 12.3747