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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-11-13 00:00

iasi
All METOP-A/IASI RADIANCES ALL CHANNELS Missing
METOP-B/IASI RADIANCES CHANNEL 5379 : out of range
2 times in the last 10 days for at least one item
Considerable: avg_biascorr=-0.1033, expected range: -0.1885 -0.1265
Atmospheric Motion Vector
GOES-16/AMV VIS1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Slight: obs_number=3236.0000, expected range: 3496.0461 6001.8428
Radiosondes
LAND TEMP TEMPERATURE (K) 30372 PRESSURE LAYER 900-1200 (HPA) : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9438, expected range: -0.9791 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 57131 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.8062, expected range: 0.0000 6.5665
LAND TEMP WIND VECTOR DIFF (M/S) 57494 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=28.5494, expected range: 0.0000 7.9016
Severe: avg_pge=0.8988, expected range: -0.4093 0.6123
LAND TEMP WIND VECTOR DIFF (M/S) 56146 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=34.0897, expected range: 0.5637 5.7910
Severe: avg_pge=0.9072, expected range: -0.1317 0.2243
LAND TEMP WIND VECTOR DIFF (M/S) 53798 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.0040, expected range: 0.0000 7.7535
LAND TEMP WIND VECTOR DIFF (M/S) 32540 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=28.3690, expected range: 0.0000 10.8039
Severe: avg_pge=0.8898, expected range: -0.8931 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 26075 PRESSURE LAYER 900-1200 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8775, expected range: -0.9952 0.7500
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
Severe: avg_biascorr=-0.0003, expected range: -0.0001 0.0001
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 900-1200 (HPA) : out of range
Slight: avg_fgdepar=0.1313, expected range: -0.1250 0.0812
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) ZKA0IKBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=23.2923, expected range: 0.0000 16.3804
Severe: avg_pge=0.8607, expected range: -0.3789 0.7195
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU8521 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=18.6907, expected range: 0.0000 10.3251
airep
AIREP WIND VECTOR DIFF (M/S) UAL925 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=18.0085, expected range: 0.0000 9.8924
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 14280 PRESSURE LAYER 900-1200 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9259, expected range: -0.2965 0.7500
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 57494 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.7912, expected range: 0.0000 10.0370
Severe: avg_pge=0.8634, expected range: -0.6299 0.7500
LAND PILOT WIND VECTOR DIFF (M/S) 97270 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_pge=0.8128, expected range: -0.4727 0.7500
LAND PILOT WIND VECTOR DIFF (M/S) 41768 PRESSURE LAYER 300-600 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8751, expected range: -0.8275 0.7500
synop
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71750 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8303, expected range: -1.5148 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94654 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8200, expected range: -1.6113 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42393 : out of range
Severe: rms_fgdepar=332.3051, expected range: 0.0000 90.1336
Severe: avg_pge=0.8361, expected range: -0.9932 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 82784 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8292, expected range: -0.2779 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42935 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8012, expected range: -1.2682 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 47075 : out of range
Severe: rms_fgdepar=325.7304, expected range: 0.0000 132.9329
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 94816 : out of range
Severe: rms_fgdepar=636.7996, expected range: 0.0000 241.4555
Severe: avg_pge=0.9106, expected range: -0.8778 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42026 : out of range
Severe: avg_pge=0.8879, expected range: -0.3218 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43309 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8221, expected range: -1.1670 0.7500
MANUAL LAND SYNOP RH2M (%) 87121 : out of range
Severe: avg_pge=0.9056, expected range: -0.0305 0.0424
MANUAL LAND SYNOP RH2M (%) 17061 : out of range
Severe: rms_fgdepar=54.1657, expected range: 0.0000 41.2812
Severe: avg_pge=0.9968, expected range: -0.0599 0.0750
MANUAL LAND SYNOP RH2M (%) 44305 : out of range
Severe: rms_fgdepar=33.0633, expected range: 0.0000 16.3464
MANUAL LAND SYNOP RH2M (%) 67665 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=22.5039, expected range: 0.0000 10.2453
MANUAL LAND SYNOP RH2M (%) 52418 : out of range
Severe: rms_fgdepar=37.1585, expected range: 0.0000 15.2288
MANUAL LAND SYNOP RH2M (%) 51379 : out of range
Severe: rms_fgdepar=42.5951, expected range: 0.0000 21.2180
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48955 : out of range
Severe: rms_fgdepar=483.4422, expected range: 0.0000 191.6871
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94816 : out of range
Severe: rms_fgdepar=640.9164, expected range: 0.0000 207.8582
Severe: avg_pge=0.9187, expected range: -0.5208 0.5929
BUFR LAND SYNOP RH2M (%) 94521 : out of range
Severe: rms_fgdepar=28.3767, expected range: 0.0000 10.6718
BUFR LAND SYNOP RH2M (%) 94732 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=52.4423, expected range: 0.0000 22.9838
Severe: avg_pge=0.9991, expected range: -1.1845 0.7500
BUFR LAND SYNOP RH2M (%) 94772 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8377, expected range: -1.1647 0.7500
BUFR LAND SYNOP RH2M (%) 11978 : out of range
Severe: rms_fgdepar=38.9746, expected range: 0.0000 18.0643
MANUAL LAND SYNOP RH2M (%) : out of range
Considerable: obs_number=88.0000, expected range: 98.2569 126.1181
ship
SHIP WIND VECTOR DIFF (M/S) VRJT8 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=21.1862, expected range: 0.0000 13.7182
Severely_persistent: avg_pge=0.9341, expected range: -0.1955 0.7500
SHIP SURFACE PRESSURE (PA) WDE8761 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8079, expected range: 0.0843 0.7500
SHIP SURFACE PRESSURE (PA) 9V3532 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8345, expected range: -0.6551 0.7500
SHIP SURFACE PRESSURE (PA) ZCDS3 : out of range
Severe: rms_fgdepar=396.2662, expected range: 0.0000 342.2660
Severe: avg_pge=0.8230, expected range: -1.1195 0.7500
SHIP SURFACE PRESSURE (PA) ZCDM6 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=517.5713, expected range: 0.0000 237.8865
Severe: avg_pge=0.8626, expected range: -0.8207 0.7500
SHIP SURFACE PRESSURE (PA) C6VG8 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8760, expected range: 0.1861 0.7500
SHIP WIND VECTOR DIFF (M/S) VRPN8 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=29.8833, expected range: 0.0000 17.4143
Severe: avg_pge=0.9481, expected range: -0.9916 0.7500
SHIP WIND VECTOR DIFF (M/S) VRYO8 : out of range
Severe: avg_pge=0.8739, expected range: -1.1475 0.7500
ABBREVIATED SHIP WIND VECTOR DIFF (M/S) WTDH : out of range
Severe: rms_fgdepar=20.8807, expected range: 0.0000 11.0808
buoy
MOORED BUOYS SURFACE PRESSURE (PA) : out of range
10 times in the last 10 days for at least one item
Severely_persistent: obs_number=111.0000, expected range: 197.6345 220.5817
Severely_persistent: obs_number=47.0000, expected range: 117.6456 125.3274
metar
AUTOMATIC METAR SURFACE PRESSURE (PA) KFOZ : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=173.1619, expected range: 0.0000 90.7440
METAR SURFACE PRESSURE (PA) LICL : out of range
Severe: rms_fgdepar=690.0910, expected range: 0.0000 284.4938
AUTOMATIC METAR SURFACE PRESSURE (PA) KUTA : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=569.1655, expected range: 0.0000 186.7427
AUTOMATIC METAR SURFACE PRESSURE (PA) KMLB : out of range
Severe: rms_fgdepar=304.1264, expected range: 0.0000 129.3476
snow
BUFR LAND SYNOP SNOW (CM) : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-0.1206, expected range: -0.0132 0.0103
Severely_persistent: avg_fgdepar=0.6830, expected range: -0.1078 0.0968
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89578 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8377, expected range: 0.7331 0.9431
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71640 : out of range
Severe: rms_fgdepar=9.0428, expected range: 0.0000 3.9087
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71606 : out of range
Severe: avg_est_pge=0.8409, expected range: -0.3179 0.9751
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 72376 : out of range
2 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8176, expected range: 0.0159 1.1523
MANUAL LAND SYNOP 2M TEMPERATURE (K) 34231 : out of range
Severe: rms_fgdepar=7.0723, expected range: 0.0000 3.1401
MANUAL LAND SYNOP 2M TEMPERATURE (K) 43473 : out of range
Severe: rms_fgdepar=8.3013, expected range: 0.0000 3.6514
MANUAL LAND SYNOP 2M TEMPERATURE (K) 23635 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=8.2852, expected range: 0.0000 3.6007
MANUAL LAND SYNOP 2M TEMPERATURE (K) 23946 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=8.3469, expected range: 0.0000 4.1145
MANUAL LAND SYNOP 2M TEMPERATURE (K) 34247 : out of range
Severe: rms_fgdepar=7.2395, expected range: 0.0000 4.1290
METAR 2M TEMPERATURE (K) UNBB : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.9439, expected range: 0.0000 3.3887
METAR 2M TEMPERATURE (K) CYDF : out of range
Severe: rms_fgdepar=7.5142, expected range: 0.0000 4.0446
METAR 2M TEMPERATURE (K) MMCM : out of range
Severe: rms_fgdepar=8.9999, expected range: 0.1862 3.7370
METAR 2M TEMPERATURE (K) KFFO : out of range
Severe: rms_fgdepar=10.9286, expected range: 0.0000 4.4765