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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-06-13 00:00

amsua
METOP-C AMSUA ALL SKY RADIANCES CHANNEL 13 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.3940, expected range: -0.3521 -0.3293
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 250-251 (HPA) : out of range
19 times in the last 10 days for at least one item
Slight: avg_fgdepar=-0.0195, expected range: -0.0991 -0.0991
Radiosondes
All HIGH RESO LAND TEMP ALL LAYERS South pole : all data missing
Severely_persistent: obs_number=0, expected range: 42.84 863.53
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 85 : all data missing
Severely_persistent: obs_number=0, expected range: 11.20 305.84
LAND TEMP Q (G/KG) 72357 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=8.6852, expected range: 0.0000 4.8559
Severe: avg_fgdepar=8.6852, expected range: -3.1697 4.9414
LAND TEMP Q (G/KG) 41256 PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=7.7007, expected range: -7.6004 9.9664
LAND TEMP Q (G/KG) 36003 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.5198, expected range: 0.0000 7.3326
Severe: avg_fgdepar=6.3758, expected range: -2.0827 6.1989
LAND TEMP Q (G/KG) 41256 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=4.6249, expected range: 0.0000 1.6341
LAND TEMP Q (G/KG) 72747 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=2.0092, expected range: 0.0000 0.6685
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=5.4152, expected range: 0.0580 2.6254
Severe: rms_fgdepar=4.0815, expected range: 0.4632 2.1305
LAND TEMP TEMPERATURE (K) 21946 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=8.1728, expected range: 0.5070 1.6207
LAND TEMP TEMPERATURE (K) 30230 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_pge=0.9013, expected range: -0.4228 0.7500
Severe: rms_fgdepar=9.1045, expected range: 0.0000 12.9411
Severe: avg_fgdepar=9.1045, expected range: -7.0378 7.3195
HIGH RESO LAND TEMP Q (G/KG) 33008 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.6732, expected range: 0.0813 0.8190
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Considerable: rms_fgdepar=1.3932, expected range: 0.2421 0.9696
amdar
AMDAR TEMPERATURE (K) 00040449 PRESSURE LAYER 900-1200 (HPA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8338, expected range: -0.7493 0.7500
airep
AIREP WIND VECTOR DIFF (M/S) UAL1231 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=26.9629, expected range: -0.9341 4.8830
Severe: rms_fgdepar=26.9629, expected range: 0.0000 4.8168
Severe: avg_pge=0.8681, expected range: -0.0578 0.0656
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 48453 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=21.0019, expected range: 0.2364 18.7171
Severe: rms_fgdepar=25.2189, expected range: 0.0000 23.1782
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 17656 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8279, expected range: -1.2044 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=0.8280, expected range: -0.3757 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 15270 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8835, expected range: -0.9790 0.7500
MANUAL LAND SYNOP RH2M (%) 67977 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=31.1002, expected range: 0.0000 9.7832
MANUAL LAND SYNOP RH2M (%) 60457 : out of range
Severe: avg_pge=0.9801, expected range: -0.1849 0.2382
Severe: rms_fgdepar=56.5114, expected range: 0.0000 60.6517
Severe: avg_fgdepar=56.5114, expected range: -48.2241 69.5725
MANUAL LAND SYNOP RH2M (%) 67773 : out of range
Severe: rms_fgdepar=35.5165, expected range: 0.0000 5.9349
Severe: rms_fgdepar=34.3168, expected range: 0.0000 10.0786
MANUAL LAND SYNOP RH2M (%) 67881 : out of range
Severe: rms_fgdepar=30.3760, expected range: 0.0000 15.8087
MANUAL LAND SYNOP RH2M (%) 60230 : out of range
Severe: rms_fgdepar=36.0804, expected range: 0.0000 15.0141
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83998 : out of range
Severe: avg_pge=0.8612, expected range: -0.8798 0.7500
Severe: rms_fgdepar=402.2555, expected range: 0.0000 109.6348
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 38838 : out of range
Severe: rms_fgdepar=331.8102, expected range: 0.0000 126.5580
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40025 : out of range
Severe: rms_fgdepar=349.2133, expected range: 0.0000 132.5169
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40340 : out of range
Severe: rms_fgdepar=349.8507, expected range: 19.2595 141.4560
BUFR LAND SYNOP RH2M (%) 40439 : out of range
Severe: avg_pge=0.9910, expected range: -1.3950 0.7500
BUFR LAND SYNOP RH2M (%) 60188 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=39.0151, expected range: 0.0000 18.8216
BUFR LAND SYNOP RH2M (%) 71228 : out of range
Severe: rms_fgdepar=40.4837, expected range: 0.0000 16.4095
BUFR LAND SYNOP RH2M (%) 72218 : out of range
Severe: avg_pge=0.9935, expected range: -0.2380 0.2948
BUFR LAND SYNOP RH2M (%) 94915 : out of range
Severe: rms_fgdepar=50.8290, expected range: 0.0000 42.7400
Severe: avg_fgdepar=-50.3994, expected range: -43.9263 27.4320
BUFR LAND SYNOP RH2M (%) 71223 : out of range
Severe: rms_fgdepar=36.9118, expected range: 0.0000 19.0869
BUFR LAND SYNOP RH2M (%) 94972 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9980, expected range: -0.7350 0.7500
Severe: rms_fgdepar=57.6205, expected range: -46.9795 69.7188
Severe: avg_fgdepar=-57.5860, expected range: -54.5837 44.3644
BUFR LAND SYNOP RH2M (%) 71240 : out of range
Severe: rms_fgdepar=30.5246, expected range: 0.0000 12.5267
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48048 : out of range
Severe: rms_fgdepar=550.9889, expected range: 11.6447 185.8019
BUFR LAND SYNOP SURFACE PRESSURE (PA) 42077 : out of range
Severe: avg_pge=0.8487, expected range: -1.9415 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41573 : out of range
Severe: rms_fgdepar=783.8427, expected range: 756.7384 924.6626
Severe: avg_fgdepar=783.4032, expected range: 761.3829 915.6101
BUFR LAND SYNOP SURFACE PRESSURE (PA) 88903 : out of range
Severe: rms_fgdepar=304.8115, expected range: 0.0000 163.4394
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) V7A4867 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8444, expected range: -0.0595 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRTW3 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8151, expected range: -1.0288 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HA4048 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=661.9879, expected range: 0.0000 1741.2486
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3FSA9 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-656.0871, expected range: -528.0142 -16.8000
Severely_persistent: rms_fgdepar=656.0871, expected range: 16.6586 529.5152
Severely_persistent: avg_pge=0.8546, expected range: 0.1755 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRDU9 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=640.7722, expected range: 206.0148 879.9742
Severely_persistent: rms_fgdepar=640.7722, expected range: 206.0148 879.9742
Severely_persistent: avg_pge=0.8296, expected range: 0.5644 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRQU9 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=675.5710, expected range: -594.6830 1098.2146
Severely_persistent: rms_fgdepar=675.5710, expected range: 0.0000 1159.2933
Severely_persistent: avg_pge=0.8456, expected range: -0.9566 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9HA3182 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8895, expected range: 0.5436 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 7JPS2 : out of range
Severe: avg_fgdepar=780.7385, expected range: -343.7123 839.1999
Severe: rms_fgdepar=780.7385, expected range: 0.0000 737.1647
Severe: avg_pge=0.8614, expected range: -0.8190 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3FXM3 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=733.6737, expected range: -428.3369 860.2725
Severe: rms_fgdepar=819.4465, expected range: 0.0000 943.5548
Severe: avg_pge=0.8217, expected range: -0.9196 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) MAOR4 : out of range
Severe: rms_fgdepar=343.6028, expected range: 0.0000 163.7923
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3EJI6 : out of range
Severe: avg_fgdepar=-723.7075, expected range: -468.3849 308.7860
Severe: rms_fgdepar=723.7075, expected range: 0.0000 419.3056
Severe: avg_pge=0.8793, expected range: -1.0139 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HA4777 : out of range
Severe: avg_fgdepar=620.1781, expected range: 162.5595 878.1719
Severe: rms_fgdepar=620.1781, expected range: 168.5257 888.1048
Severe: avg_pge=0.8308, expected range: 0.4482 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WUSD : out of range
Severe: rms_fgdepar=395.0687, expected range: 0.0000 185.3352
BUFR SHIP SYNOP SURFACE PRESSURE (PA) H9LE : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=666.6518, expected range: -97.1712 203.4940
Severe: rms_fgdepar=666.6518, expected range: 0.0000 179.9871
Severe: avg_pge=0.8451, expected range: 0.0000 0.0000
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 5401536 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8352, expected range: -1.2890 0.7500
metar
METAR SURFACE PRESSURE (PA) SLCA : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=484.9096, expected range: 0.0000 277.0284
METAR SURFACE PRESSURE (PA) FKKL : out of range
Severe: avg_fgdepar=594.1146, expected range: -374.8643 310.5016
Severe: rms_fgdepar=594.1146, expected range: 0.0000 303.0116
snow
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: -775.0605 -771.8999
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: 771.8999 775.0607
BUFR LAND SYNOP SNOW (CM) _MI1067E : out of range
35 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=57.4737, expected range: 44.8796 62.1671
BUFR LAND SYNOP SNOW (CM) _MI1067E : out of range
35 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=57.9077, expected range: 45.8525 62.3386
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=16.9506, expected range: 2.9645 16.8518
Severely_persistent: avg_fgdepar=-16.9042, expected range: -16.8476 -2.6989
METAR 2M TEMPERATURE (K) VECX : out of range
33 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=12.9138, expected range: 11.3327 15.9307
Severely_persistent: avg_fgdepar=12.7513, expected range: 9.9549 15.9624
METAR 2M TEMPERATURE (K) KSUA : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=18.3769, expected range: -9.4899 18.4146
Severely_persistent: avg_fgdepar=-18.3769, expected range: -19.4256 16.1172
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
32 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=18.8576, expected range: 13.4196 21.2231
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
32 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-18.8374, expected range: -21.2439 -13.3379
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
20 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=19.6113, expected range: 13.7119 20.8319
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-19.6083, expected range: -20.8200 -13.6762
BUFR LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=17.0765, expected range: 3.1993 16.7049
Severely_persistent: avg_fgdepar=-17.0285, expected range: -16.6990 -2.9435
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 68297 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.1983, expected range: 0.0000 4.5331
METAR 2M TEMPERATURE (K) KCPR : out of range
Severe: rms_fgdepar=11.7481, expected range: 1.2119 5.2165
LAND TEMP 2M TEMPERATURE (K) 71926 : out of range
Severe: rms_fgdepar=15.0147, expected range: 0.0000 6.3393
Severe: avg_fgdepar=15.0147, expected range: -3.0718 6.6037
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI1AF46 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=12.0010, expected range: 0.0000 9.7403
rh2m
MANUAL LAND SYNOP RH2M (%) 60115 : out of range
Severe: rms_fgdepar=30.2722, expected range: 0.0000 12.2991
MANUAL LAND SYNOP RH2M (%) 89564 : out of range
Severe: rms_fgdepar=38.6773, expected range: 0.0000 18.4119