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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-11-14 00:00

iasi
All METOP-A/IASI RADIANCES ALL CHANNELS Missing
airs
AQUA/AIRS RADIANCES CHANNEL 375 : out of range
3 times in the last 10 days for at least one item
Severe: stdev_fgdepar=0.4589, expected range: 0.3409 0.4135
mhs
ALLSKY NOAA-19/MHS RADIANCES CHANNEL 2 : out of range
Considerable: obs_number=7247.0000, expected range: 7888.9500 9585.5072
ALLSKY NOAA-19/MHS RADIANCES CHANNEL 3 : out of range
Considerable: obs_number=9035.0000, expected range: 9652.6996 11004.0433
ALLSKY NOAA-19/MHS RADIANCES CHANNEL 4 : out of range
Considerable: obs_number=9866.0000, expected range: 10551.4870 12158.6272
ALLSKY NOAA-19/MHS RADIANCES CHANNEL 1 : out of range
Slight: obs_number=25784.0000, expected range: 26551.1780 31554.8220
ALLSKY NOAA-19/MHS RADIANCES CHANNEL 5 : out of range
Slight: obs_number=25420.0000, expected range: 26081.4327 31176.5102
atms
NOAA20/ATMS RADIANCES (7 channels affected) : out of range
Considerable: obs_number=3836.0000, expected range: 3170.2303 3635.9364
Radiosondes
LAND TEMP Q (G/KG) PRESSURE LAYER 0-300 (HPA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=0.0136, expected range: -0.0025 0.0022
Severely_persistent: rms_fgdepar=0.0235, expected range: 0.0000 0.0035
LAND TEMP TEMPERATURE (K) 30372 PRESSURE LAYER 900-1200 (HPA) : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9276, expected range: -0.9039 0.7500
LAND TEMP TEMPERATURE (K) 24266 PRESSURE LAYER 900-1200 (HPA) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8837, expected range: -0.9671 0.7500
HIGH RESO LAND TEMP TEMPERATURE (K) 71964 PRESSURE LAYER 900-1200 (HPA : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8743, expected range: -1.1962 0.7500
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 04270 PRESSURE LAYER 900-12 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8826, expected range: -1.2410 0.7500
LAND TEMP Q (G/KG) 22543 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=2.2170, expected range: -0.3714 0.5417
LAND TEMP TEMPERATURE (K) 22543 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=9.4661, expected range: 0.0000 2.4944
Severe: avg_pge=0.9131, expected range: -0.6446 0.7500
LAND TEMP TEMPERATURE (K) 42516 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=13.1264, expected range: 0.0000 2.5781
Severe: avg_pge=0.9413, expected range: -0.2536 0.4868
LAND TEMP TEMPERATURE (K) 24122 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8898, expected range: -0.9536 0.7500
LAND TEMP TEMPERATURE (K) 30965 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8709, expected range: -0.8935 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 22543 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=18.4649, expected range: 0.0000 10.4197
Severe: avg_pge=0.8564, expected range: -0.4758 0.6498
LAND TEMP WIND VECTOR DIFF (M/S) 31770 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.9065, expected range: -0.5691 0.7500
HIGH RESO LAND TEMP TEMPERATURE (K) 04417 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=6.8439, expected range: 0.0000 3.8237
LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: avg_fgdepar=8.0711, expected range: 2.8443 6.0856
Considerable: rms_fgdepar=9.8696, expected range: 3.0739 7.1182
airep
AIREP WIND VECTOR DIFF (M/S) AFR475 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.9733, expected range: 0.0000 8.9184
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 65387 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.9011, expected range: 0.2815 9.6691
Severe: avg_pge=0.8167, expected range: -0.1585 0.3448
LAND PILOT WIND VECTOR DIFF (M/S) 97270 PRESSURE LAYER 300-600 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8510, expected range: -0.4819 0.7500
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 41992 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=529.3396, expected range: 0.0000 155.5891
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42393 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=308.2404, expected range: 0.0000 92.6257
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 65465 : out of range
Severe: rms_fgdepar=908.1947, expected range: 0.0000 361.1809
Severe: avg_pge=0.9319, expected range: -1.1213 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42026 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8787, expected range: -0.3218 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42588 : out of range
Severe: rms_fgdepar=684.0975, expected range: 0.0000 279.2165
Severe: avg_pge=0.9127, expected range: -0.9986 0.7500
MANUAL LAND SYNOP RH2M (%) 76423 : out of range
Severe: avg_pge=0.8598, expected range: -0.1145 0.1368
BUFR LAND SYNOP SURFACE PRESSURE (PA) 81982 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=585.7738, expected range: 0.0000 267.9010
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48924 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=467.1884, expected range: 0.0000 237.8624
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71336 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8966, expected range: -0.7210 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48037 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=891.5494, expected range: 0.0000 483.1319
Severe: avg_pge=0.9410, expected range: -0.5599 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 04149 : out of range
Severe: avg_pge=0.8310, expected range: -0.0436 0.7500
BUFR LAND SYNOP RH2M (%) 07481 : out of range
Severe: rms_fgdepar=31.0555, expected range: 0.0000 15.1550
BUFR LAND SYNOP RH2M (%) 94622 : out of range
Severe: avg_pge=0.9365, expected range: -0.1084 0.1310
BUFR LAND SYNOP RH2M (%) 94632 : out of range
Severe: avg_pge=0.9402, expected range: -1.0676 0.7500
BUFR LAND SYNOP RH2M (%) 23472 : out of range
Severe: rms_fgdepar=19.9177, expected range: 0.0000 9.5064
MANUAL LAND SYNOP RH2M (%) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=88.0000, expected range: 98.2356 126.0144
Severe: obs_number=169.0000, expected range: 131.5033 144.5493
ship
SHIP SURFACE PRESSURE (PA) C6BR3 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8595, expected range: -1.1625 0.7500
SHIP SURFACE PRESSURE (PA) ZCDM6 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=467.8454, expected range: 0.0000 225.4991
Severely_persistent: avg_pge=0.8577, expected range: -1.0726 0.7500
ABBREVIATED SHIP SURFACE PRESSURE (PA) WTDF : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9513, expected range: -0.8055 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) MERFR14 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8916, expected range: -0.9122 0.7500
SHIP WIND VECTOR DIFF (M/S) DFGX2 : out of range
Severe: rms_fgdepar=18.8351, expected range: 0.0000 10.1731
Severe: avg_pge=0.9214, expected range: -0.9269 0.7500
SHIP WIND VECTOR DIFF (M/S) SHJC : out of range
Severe: rms_fgdepar=17.9837, expected range: 0.0000 10.8554
Severe: avg_pge=0.9093, expected range: -0.9360 0.7500
SHIP SURFACE PRESSURE (PA) DHEK2 : out of range
Severe: rms_fgdepar=781.4376, expected range: 0.0000 365.4279
SHIP SURFACE PRESSURE (PA) C6VG8 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8582, expected range: 0.1717 0.7500
ABBREVIATED SHIP SURFACE PRESSURE (PA) WCW7550 : out of range
Severe: avg_pge=0.8648, expected range: -1.0258 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=590.0000, expected range: -84.0085 90.0691
DRIFTING BUOYS SURFACE PRESSURE (PA) 6301542 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8540, expected range: -1.2718 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6301687 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8331, expected range: -1.2790 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5601603 : out of range
Severe: rms_fgdepar=597.7975, expected range: 0.0000 216.1400
Severe: avg_pge=0.9100, expected range: -0.1462 0.1923
DRIFTING BUOYS SURFACE PRESSURE (PA) 6301686 : out of range
Severe: rms_fgdepar=445.3449, expected range: 0.0000 129.5169
Severe: avg_pge=0.8523, expected range: -0.3202 0.3641
metar
METAR SURFACE PRESSURE (PA) LGMK : out of range
Severe: rms_fgdepar=475.9489, expected range: 0.0000 171.3079
METAR SURFACE PRESSURE (PA) LIRL : out of range
Severe: rms_fgdepar=477.0601, expected range: 0.0000 195.3303
snow
BUFR LAND SYNOP SNOW (CM) : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-0.0504, expected range: -0.0180 0.0137
Severely_persistent: avg_fgdepar=0.6422, expected range: -0.1101 0.1005
MANUAL LAND SYNOP SNOW (CM) 16021 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=37.1550, expected range: -3.5712 6.5400
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=0.8236, expected range: 0.7324 0.9434
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 01250 : out of range
Severe: avg_est_pge=0.8065, expected range: -0.4392 1.0559
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 68363 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=11.2687, expected range: 0.0000 5.1016
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 11266 : out of range
Severe: rms_fgdepar=11.8185, expected range: 0.0000 4.6795
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 11119 : out of range
Severe: rms_fgdepar=7.7232, expected range: 0.0000 4.3569
MANUAL LAND SYNOP 2M TEMPERATURE (K) 51542 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8579, expected range: -0.3271 1.0350
MANUAL LAND SYNOP 2M TEMPERATURE (K) 01393 : out of range
Severe: rms_fgdepar=12.3264, expected range: 0.0000 6.8206
MANUAL LAND SYNOP 2M TEMPERATURE (K) 80036 : out of range
Severe: rms_fgdepar=7.7750, expected range: 0.4250 4.1340
MANUAL LAND SYNOP 2M TEMPERATURE (K) 29766 : out of range
Severe: rms_fgdepar=8.6498, expected range: 0.0000 3.8110
LAND TEMP 2M TEMPERATURE (K) 30372 : out of range
Severe: avg_est_pge=0.8242, expected range: 0.1885 1.1680
BUFR LAND SYNOP 2M TEMPERATURE (K) 01250 : out of range
Severe: avg_est_pge=0.8069, expected range: -0.4399 1.0597
BUFR LAND SYNOP 2M TEMPERATURE (K) 04862 : out of range
Severe: rms_fgdepar=8.1992, expected range: 0.0000 1.9414
BUFR LAND SYNOP 2M TEMPERATURE (K) 04864 : out of range
Severe: rms_fgdepar=7.3383, expected range: 0.0000 2.2080
BUFR LAND SYNOP 2M TEMPERATURE (K) 11119 : out of range
Severe: rms_fgdepar=7.6487, expected range: 0.0000 4.0086