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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-06-18 00:00

amsua
METOP-B AMSUA ALL SKY RADIANCES CHANNEL 13 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1180, expected range: 0.1615 0.1933
METOP-C AMSUA ALL SKY RADIANCES CHANNEL 13 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.3912, expected range: -0.3521 -0.3154
mwhs2
FY-3C MWHS2 ALLSKY RADIANCES CHANNEL 12 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-1.2352, expected range: -1.4200 -1.3780
FY-3C MWHS2 ALLSKY RADIANCES CHANNEL 5 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2085, expected range: 0.0506 0.1006
atms
NOAA20 ATMS RADIANCES CHANNEL 18 : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=314.0000, expected range: 0.0000 11.5427
NOAA20 ATMS RADIANCES CHANNEL 19 : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=312.0000, expected range: 0.0000 12.1138
gpsro
All TERRASAR-X GPSRO SETTING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 89.53 527.05
Atmospheric Motion Vector
AQUA MODIS CLEAR WV WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA : out of range
8 times in the last 10 days for at least one item
Severely_persistent: obs_number=505.0000, expected range: 156.5452 261.4521
Geostationary CSR
HIMAWARI-8 AHI RADIANCES CHANNEL 3 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1341, expected range: 0.0150 0.0597
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 250-251 (HPA) : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=0.0032, expected range: -0.1117 -0.0991
Radiosondes
HIGH RESO LAND TEMP TEMPERATURE (K) 51656 PRESSURE LAYER 900-1200 (HPA : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8425, expected range: -1.0396 0.7500
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 88 : all data missing
Severely_persistent: obs_number=0, expected range: 32.50 231.25
LAND TEMP TEMPERATURE (K) 24947 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=8.5264, expected range: 0.0000 3.0154
LAND TEMP TEMPERATURE (K) 30758 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.4209, expected range: 0.0000 4.7025
Severe: avg_pge=0.8572, expected range: -0.9553 0.7500
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=3.2698, expected range: 1.1493 1.8216
HIGH RESO LAND TEMP TEMPERATURE (K) 17281 PRESSURE LAYER 900-1200 (HPA : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8790, expected range: -0.5513 0.7500
HIGH RESO LAND TEMP TEMPERATURE (K) 72318 PRESSURE LAYER 900-1200 (HPA : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=6.9876, expected range: 0.0000 3.6849
HIGH RESO LAND TEMP Q (G/KG) 72776 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.6178, expected range: 0.0000 0.9949
All HIGH RESO LAND TEMP ALL LAYERS South Atlantic : all data missing
Severe: obs_number=0, expected range: 30.60 234.90
BUFR TEMP DESCENT Q (G/KG) 10113 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.2311, expected range: 0.1876 1.1841
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
Considerable: obs_number=104.0000, expected range: 194.9646 217.2854
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
Considerable: obs_number=84.0000, expected range: 145.9822 162.0178
amdar
AMDAR WIND VECTOR DIFF (M/S) JP9Z48VZ PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_fgdepar=20.1979, expected range: -2.0678 7.1057
Severe: rms_fgdepar=20.1979, expected range: 0.0000 7.1164
WIGOS AMDAR WIND VECTOR DIFF (M/S) MNLUNXBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.1572, expected range: 0.0000 7.9120
ADS-C WIND VECTOR DIFF (M/S) SP0DTRBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.2797, expected range: 0.6855 7.2256
ADS-C WIND VECTOR DIFF (M/S) EGOZLAJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=22.5080, expected range: 0.0000 8.4784
ADS-C WIND VECTOR DIFF (M/S) EU5TYFRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=23.7314, expected range: 0.0000 9.4671
airep
AIREP WIND VECTOR DIFF (M/S) KLM610 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=32.2276, expected range: 0.0000 5.3426
AIREP WIND VECTOR DIFF (M/S) THT8 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.7541, expected range: 0.0000 6.7512
prof
JAPANESE WIND PROFILER VECTOR DIFF (M/S) 47417 PRESSURE LAYER 300-600 : out of range
Severe: rms_fgdepar=18.7097, expected range: 0.0000 7.0136
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 48453 PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=20.6899, expected range: 0.6316 20.6506
Severe: rms_fgdepar=26.8700, expected range: 0.0000 27.1005
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 17656 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8291, expected range: 0.7725 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 60471 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8197, expected range: 0.0512 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 60520 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8401, expected range: 0.0424 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 72570 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8131, expected range: -1.5395 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41573 : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=869.3434, expected range: 740.6292 931.9378
Severely_persistent: rms_fgdepar=870.0557, expected range: 726.6500 952.3853
BUFR LAND SYNOP SURFACE PRESSURE (PA) 42527 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8223, expected range: -1.3385 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 68493 : out of range
Severe: avg_pge=0.8943, expected range: -0.9869 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 68546 : out of range
Severe: avg_fgdepar=50.9987, expected range: -7.6439 57.3128
Severe: rms_fgdepar=50.9987, expected range: 0.0000 57.3128
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 89059 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=384.8227, expected range: 0.0000 211.3162
Severe: avg_pge=0.8703, expected range: -0.7056 0.7500
MANUAL LAND SYNOP RH2M (%) 60492 : out of range
Severe: avg_fgdepar=50.6418, expected range: -56.6405 86.0428
Severe: rms_fgdepar=50.6418, expected range: 0.0000 84.9953
MANUAL LAND SYNOP RH2M (%) 76113 : out of range
Severe: rms_fgdepar=46.3097, expected range: 0.0000 23.2451
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 62440 : out of range
Severe: rms_fgdepar=466.1310, expected range: 0.0000 159.7382
Severe: avg_pge=0.8754, expected range: -0.8624 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 89606 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-688.2031, expected range: -214.9620 130.9797
Severe: rms_fgdepar=920.4064, expected range: 0.0000 184.9099
BUFR LAND SYNOP RH2M (%) 07600 : out of range
Severe: rms_fgdepar=35.0214, expected range: 0.0000 18.3148
BUFR LAND SYNOP RH2M (%) 60253 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=54.7493, expected range: -20.9988 37.1241
Severe: rms_fgdepar=54.7493, expected range: 0.0000 36.3883
Severe: avg_pge=0.9976, expected range: -1.0504 0.7500
BUFR LAND SYNOP RH2M (%) 35925 : out of range
Severe: rms_fgdepar=33.3188, expected range: 0.0000 12.7395
BUFR LAND SYNOP RH2M (%) 72365 : out of range
Severe: rms_fgdepar=37.4391, expected range: 0.0000 10.7535
BUFR LAND SYNOP RH2M (%) 40439 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9791, expected range: -1.5859 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 67341 : out of range
Severe: rms_fgdepar=398.0637, expected range: 0.0000 95.3913
BUFR LAND SYNOP SURFACE PRESSURE (PA) 86846 : out of range
Severe: avg_fgdepar=861.7329, expected range: -73.4280 90.5436
Severe: rms_fgdepar=863.4868, expected range: 0.1190 62.1146
Severe: avg_pge=0.9154, expected range: -0.0116 0.0131
BUFR LAND SYNOP SURFACE PRESSURE (PA) 35358 : out of range
Severe: rms_fgdepar=655.7741, expected range: 0.0000 283.2252
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41989 : out of range
Severe: rms_fgdepar=373.4999, expected range: 0.0000 179.6316
BUFR LAND SYNOP RH2M (%) : out of range
Considerable: obs_number=1999.0000, expected range: 2202.8068 2263.6932
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3FSA9 : out of range
39 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-501.2376, expected range: -1329.2685 390.8268
Severely_persistent: rms_fgdepar=501.8920, expected range: 0.0000 1317.8470
Severely_persistent: avg_pge=0.8221, expected range: 0.1960 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) H9LE : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=680.5655, expected range: -1200.4533 1939.8301
Severely_persistent: rms_fgdepar=680.5655, expected range: 0.0000 1939.8301
Severely_persistent: avg_pge=0.8513, expected range: -1.8087 0.7500
SHIP SURFACE PRESSURE (PA) 9HA3047 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8596, expected range: -0.8479 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 2IYH6 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=18.4300, expected range: 0.0000 13.1327
Severe: avg_pge=0.8997, expected range: -1.4571 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) EUCDE37 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8089, expected range: 0.3556 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) C6RZ7 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=22.3383, expected range: 0.0000 28.6536
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) WDE3568 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=16.3264, expected range: 0.0000 11.2150
Severe: avg_pge=0.9016, expected range: -1.1223 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WDJ9553 : out of range
Severe: avg_fgdepar=522.7192, expected range: -96.9788 347.9364
Severe: rms_fgdepar=522.7192, expected range: 0.0000 347.9364
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6RZ7 : out of range
Severe: rms_fgdepar=381.1059, expected range: 2.6602 173.9938
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WDJ3639 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=675.6984, expected range: 0.0000 357.5648
BUFR SHIP SYNOP SURFACE PRESSURE (PA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=574.2196, expected range: 0.0000 1319.6314
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 2200192 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9035, expected range: -1.0530 0.7500
MOORED BUOYS SURFACE PRESSURE (PA) 4600082 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8123, expected range: -1.5809 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6301679 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-762.8530, expected range: -1422.5138 1227.7752
Severely_persistent: rms_fgdepar=785.9913, expected range: 0.0000 1289.4662
Severely_persistent: avg_pge=0.9241, expected range: -1.1504 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5601561 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=325.9734, expected range: 0.0000 195.9189
Severe: avg_pge=0.8056, expected range: -0.1812 0.2607
metar
METAR SURFACE PRESSURE (PA) GAMB : out of range
Severe: rms_fgdepar=675.6403, expected range: 0.0000 178.3889
snow
BUFR LAND SYNOP SNOW (CM) _MI1BC83 : out of range
33 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=59.7000, expected range: 42.2654 65.5740
BUFR LAND SYNOP SNOW (CM) _MI1BC83 : out of range
33 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=60.4161, expected range: 43.6962 66.3516
BUFR LAND SYNOP SNOW (CM) _MF1EB15 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-772.8368, expected range: -775.0657 -771.5850
BUFR LAND SYNOP SNOW (CM) _MF1EB15 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=772.8368, expected range: 771.5849 775.0659
BUFR LAND SYNOP SNOW (CM) _MI1067E : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=61.6111, expected range: 52.1338 61.6621
BUFR LAND SYNOP SNOW (CM) _MI1067E : out of range
38 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=61.8081, expected range: 52.7779 62.0854
BUFR LAND SYNOP SNOW (CM) _MI11588 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=50.0282, expected range: 28.5840 52.8694
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-14.3690, expected range: -22.9348 -1.3616
Severely_persistent: rms_fgdepar=14.5102, expected range: 1.4755 22.9665
BUFR LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-14.5911, expected range: -23.0515 -1.3796
Severely_persistent: rms_fgdepar=14.7402, expected range: 1.4938 23.0700
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
26 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-19.1794, expected range: -22.7381 -12.1505
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
26 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=19.1794, expected range: 12.2302 22.7662
METAR 2M TEMPERATURE (K) KFFO : out of range
Severe: rms_fgdepar=11.8045, expected range: 0.0000 6.4614
BUFR LAND SYNOP 2M TEMPERATURE (K) 89734 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-13.2776, expected range: -15.7727 3.8744
Severe: rms_fgdepar=13.3474, expected range: 0.0000 15.1091
BUFR LAND SYNOP 2M TEMPERATURE (K) 14335 : out of range
Severe: avg_fgdepar=-14.5328, expected range: -5.4280 3.3346
Severe: rms_fgdepar=14.5455, expected range: 0.0000 7.5030
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI14166 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-18.6185, expected range: -7.2913 -0.0588
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI14166 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=18.6248, expected range: 1.7194 7.5129
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
1 times in the last 10 days for at least one item
Considerable: rms_fgdepar=6.0490, expected range: 3.7812 5.1649
rh2m
MANUAL LAND SYNOP RH2M (%) 41571 : out of range
Severe: rms_fgdepar=30.3818, expected range: 0.0000 15.7749
MANUAL LAND SYNOP RH2M (%) 83722 : out of range
Severe: rms_fgdepar=33.2735, expected range: 0.0000 18.4469
MANUAL LAND SYNOP RH2M (%) 72365 : out of range
Severe: rms_fgdepar=37.1038, expected range: 0.0000 18.8783
METAR RH2M (%) KABQ : out of range
Severe: rms_fgdepar=31.0022, expected range: 0.0000 16.5371
BUFR LAND SYNOP RH2M (%) _MF14270 : out of range
Severe: rms_fgdepar=30.9324, expected range: 2.3534 13.7970