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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-09-20 12:00

iasi
All METOP-A/IASI RADIANCES ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 26451.46
mhs
ALLSKY METOP-A/MHS RADIANCES (5 channels affected) : out of range
4 times in the last 10 days for at least one item
Severe: obs_number=12724.0000, expected range: 23617.5146 34146.6476
ALLSKY METOP-A/MHS RADIANCES CHANNEL 5 : out of range
Considerable: stdev_norm_fgdepar=0.6620, expected range: 0.5596 0.6394
gpsro
All TERRASAR-X SETTING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 1413.19
All TANDEM-X RISING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 1097.13
Radiosondes
LAND TEMP WIND VECTOR DIFF (M/S) 17281 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=26.8874, expected range: 0.0000 4.6417
LAND TEMP WIND VECTOR DIFF (M/S) 17281 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_pge=0.8971, expected range: -0.1513 0.1733
LAND TEMP WIND VECTOR DIFF (M/S) 24122 PRESSURE LAYER 300-600 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=24.0093, expected range: 0.0000 9.2604
Severe: avg_pge=0.8771, expected range: -0.6665 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 23078 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=25.4522, expected range: 0.0000 8.8414
Severe: avg_pge=0.9117, expected range: -0.3867 0.6816
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (3 pressure layers affected : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=283.0000, expected range: 178.2051 194.4199
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Considerable: avg_biascorr=-0.0019, expected range: -0.0009 0.0010
HIGH RESO LAND TEMP Q (G/KG) (4 pressure layers affected) : out of range
Considerable: obs_number=2434.0000, expected range: 1908.6540 2230.1238
amdar
WIGOS AMDAR TEMPERATURE (K) SL0071 PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8503, expected range: -0.5236 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) DB0MFGRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.2647, expected range: 0.0000 6.5844
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 01206 PRESSURE LAYER 600-900 : out of range
Severe: rms_fgdepar=21.9518, expected range: 0.0000 18.0362
Severe: avg_pge=0.8935, expected range: -0.6204 0.7500
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42711 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8996, expected range: -1.3856 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42523 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8271, expected range: -0.5443 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 17135 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=382.3768, expected range: 0.0000 345.1417
Severely_persistent: avg_pge=0.8168, expected range: -1.1627 0.7500
MANUAL LAND SYNOP RH2M (%) 51777 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9942, expected range: -2.0161 0.7500
BUFR LAND SYNOP RH2M (%) 81737 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9962, expected range: -1.1685 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 89542 : out of range
Severe: avg_pge=0.8378, expected range: -0.7850 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40001 : out of range
Severe: rms_fgdepar=527.1434, expected range: 13.2024 295.4932
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43021 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=686.4943, expected range: 0.0000 425.9589
Severe: avg_pge=0.9201, expected range: -1.2515 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83671 : out of range
Severe: rms_fgdepar=329.7519, expected range: 0.0000 166.6536
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 86128 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8099, expected range: -1.2116 0.7500
MANUAL LAND SYNOP RH2M (%) 42830 : out of range
Severe: rms_fgdepar=30.2801, expected range: 0.0000 16.4431
MANUAL LAND SYNOP RH2M (%) 63962 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=1.0000, expected range: -1.9578 0.7500
MANUAL LAND SYNOP RH2M (%) 66285 : out of range
Severe: avg_pge=0.9285, expected range: -0.9813 0.7500
MANUAL LAND SYNOP RH2M (%) 83616 : out of range
Severe: rms_fgdepar=29.9121, expected range: 0.0000 15.1046
MANUAL LAND SYNOP RH2M (%) 42027 : out of range
Severe: rms_fgdepar=32.8277, expected range: 0.0000 23.2324
Severe: avg_pge=0.9813, expected range: -0.0007 0.0071
MANUAL LAND SYNOP RH2M (%) 42459 : out of range
Severe: avg_pge=0.9969, expected range: -0.9170 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 81982 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9474, expected range: -0.9121 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71445 : out of range
Severe: rms_fgdepar=477.3909, expected range: 0.0000 144.3068
BUFR LAND SYNOP SURFACE PRESSURE (PA) 26976 : out of range
Severe: rms_fgdepar=423.1044, expected range: 0.0000 82.4047
BUFR LAND SYNOP SURFACE PRESSURE (PA) 16239 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=319.1680, expected range: 0.0000 129.7938
Severe: avg_pge=0.8404, expected range: -0.3120 0.3819
BUFR LAND SYNOP RH2M (%) 34743 : out of range
Severe: rms_fgdepar=23.6555, expected range: 0.0000 13.0410
BUFR LAND SYNOP RH2M (%) 34273 : out of range
Severe: rms_fgdepar=24.8864, expected range: 0.0000 14.0351
BUFR LAND SYNOP RH2M (%) 06093 : out of range
Severe: rms_fgdepar=35.1443, expected range: 0.0000 17.9245
BUFR LAND SYNOP RH2M (%) 33564 : out of range
Severe: rms_fgdepar=29.7479, expected range: 0.0000 12.3485
BUFR LAND SYNOP RH2M (%) 33215 : out of range
Severe: rms_fgdepar=28.4999, expected range: 0.0000 13.6183
BUFR LAND SYNOP RH2M (%) 34845 : out of range
Severe: rms_fgdepar=19.4865, expected range: 0.0000 10.1659
BUFR LAND SYNOP RH2M (%) 34186 : out of range
Severe: rms_fgdepar=32.0165, expected range: 0.0000 12.6581
BUFR LAND SYNOP RH2M (%) 16648 : out of range
Severe: rms_fgdepar=21.5231, expected range: 0.0000 11.5086
ship
AUTOMATIC SHIP SURFACE PRESSURE (PA) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0000, expected range: -177.9657 -76.6718
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=0.8362, expected range: 0.7119 0.7500
AUTOMATIC SHIP WIND VECTOR DIFF (M/S) 42013 : out of range
21 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8934, expected range: -1.2379 0.7500
SHIP WIND VECTOR DIFF (M/S) OUHC2 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8355, expected range: -0.9771 0.7500
SHIP WIND VECTOR DIFF (M/S) DIXJ2 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9555, expected range: -0.3523 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) LF4J : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8474, expected range: 0.2954 0.7500
SHIP SURFACE PRESSURE (PA) 9HA4800 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8001, expected range: -1.3535 0.7500
SHIP SURFACE PRESSURE (PA) TBWUK75 : out of range
Severe: rms_fgdepar=876.5262, expected range: 0.0000 398.8290
Severe: avg_pge=0.9254, expected range: -0.5061 0.7500
SHIP SURFACE PRESSURE (PA) 9V2779 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9213, expected range: -0.7143 0.7500
SHIP SURFACE PRESSURE (PA) ONFW : out of range
Severe: rms_fgdepar=667.6101, expected range: 0.0000 533.1191
Severe: avg_pge=0.8697, expected range: -1.2771 0.7500
SHIP WIND VECTOR DIFF (M/S) C6FR3 : out of range
Severe: rms_fgdepar=15.6309, expected range: 0.0000 12.6181
Severe: avg_pge=0.8644, expected range: -0.4251 0.7500
buoy
DRIBU WIND VECTOR DIFF (M/S) 53056 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9231, expected range: 0.7152 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5301764 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8832, expected range: -1.4464 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1701536 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=593.0104, expected range: 0.0000 506.6036
Severely_persistent: avg_pge=0.9103, expected range: -0.4003 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2201558 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8045, expected range: -1.2601 0.7500
MOORED BUOYS WIND VECTOR DIFF (M/S) : out of range
4 times in the last 10 days for at least one item
Severe: obs_number=218.0000, expected range: 189.4502 197.1288
DRIFTING BUOYS SURFACE PRESSURE (PA) 0022683 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8351, expected range: -0.5996 0.7500
metar
METAR SURFACE PRESSURE (PA) FNBG : out of range
Severe: rms_fgdepar=686.0804, expected range: 0.0000 265.1263
Severe: avg_pge=0.8482, expected range: -0.1239 0.1334
METAR SURFACE PRESSURE (PA) SBMO : out of range
Severe: rms_fgdepar=312.2386, expected range: 0.0000 87.7779
snow
BUFR LAND SYNOP SNOW (CM) : out of range
27 times in the last 10 days for at least one item
Severely_persistent: obs_number=735.0000, expected range: 939.0631 1095.3053
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89504 : out of range
Severe: avg_est_pge=0.8238, expected range: -0.2093 1.3835
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 68754 : out of range
Severe: rms_fgdepar=9.7607, expected range: 0.0000 4.0928
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 68747 : out of range
Severe: rms_fgdepar=7.7982, expected range: 0.0000 4.1628
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89504 : out of range
Severe: avg_est_pge=0.8409, expected range: -0.2190 1.3829
MANUAL LAND SYNOP 2M TEMPERATURE (K) 84076 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.7944, expected range: 0.0000 2.7973
MANUAL LAND SYNOP 2M TEMPERATURE (K) 55279 : out of range
Severe: avg_est_pge=0.8050, expected range: 0.1942 0.8825
METAR 2M TEMPERATURE (K) SBAQ : out of range
Severe: rms_fgdepar=8.3125, expected range: 0.0000 4.1472
METAR 2M TEMPERATURE (K) OPSW : out of range
Severe: rms_fgdepar=7.8765, expected range: 0.5399 4.5262
BUFR LAND SYNOP 2M TEMPERATURE (K) 89504 : out of range
Severe: avg_est_pge=0.8268, expected range: -0.1953 1.3721