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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-10-13 00:00

airs
AQUA/AIRS RADIANCES CHANNEL 1142 : out of range
3 times in the last 10 days for at least one item
Severe: avg_biascorr=0.0197, expected range: -0.1172 -0.0321
mhs
ALLSKY NOAA-19/MHS RADIANCES (5 channels affected) : out of range
Severe: obs_number=13558.0000, expected range: 26867.5671 32841.5140
mwhs
FY-3B/MWHS RADIANCES CHANNEL 5 : out of range
1 times in the last 10 days for at least one item
Considerable: avg_biascorr=-2.0432, expected range: -1.8898 -1.4063
atms
NPP/ATMS RADIANCES (7 channels affected) : out of range
Considerable: obs_number=3495.0000, expected range: 2937.8312 3382.0022
Radiosondes
LAND TEMP TEMPERATURE (K) 42516 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=6.8016, expected range: 0.2083 2.9424
LAND TEMP TEMPERATURE (K) 42339 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=14.2789, expected range: 0.0000 2.2345
Severe: avg_pge=0.9466, expected range: -0.1908 0.3723
LAND TEMP TEMPERATURE (K) 30372 PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8527, expected range: -1.0451 0.7500
HIGH RESO LAND TEMP Q (G/KG) (2 pressure layers affected) : out of range
Severe: obs_number=195.0000, expected range: 242.4497 280.3738
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=0.1505, expected range: 0.0000 0.0844
Considerable: avg_fgdepar=0.0564, expected range: -0.0296 0.0229
amdar
WIGOS AMDAR Q (G/KG) XWGY0OZA PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_pge=0.9370, expected range: -0.5479 0.7500
airep
AIREP WIND VECTOR DIFF (M/S) UAL945 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.6863, expected range: 0.0000 8.3035
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 10356 PRESSURE LAYER 600-900 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=16.9828, expected range: 0.0000 10.3259
Severe: avg_pge=0.8835, expected range: -0.5572 0.7500
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 10629 PRESSURE LAYER 600-900 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8622, expected range: -0.6943 0.7500
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 10339 PRESSURE LAYER 600-900 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=20.5168, expected range: 0.0000 13.4369
Severe: avg_pge=0.8980, expected range: -0.6063 0.7500
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 07182 PRESSURE LAYER 900-1200 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8741, expected range: -0.4278 0.7500
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 07145 PRESSURE LAYER 900-1200 : out of range
Severe: avg_pge=0.8367, expected range: -0.7692 0.7500
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 07336 PRESSURE LAYER 900-1200 : out of range
Severe: rms_fgdepar=22.8499, expected range: 0.0000 16.8260
Severe: avg_pge=0.9239, expected range: -0.5296 0.7500
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83844 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8028, expected range: -1.0988 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40629 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8019, expected range: -1.5713 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 40551 : out of range
Severe: rms_fgdepar=28.0036, expected range: 0.0000 8.6199
MANUAL LAND SYNOP RH2M (%) 60750 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=49.2120, expected range: 0.0000 18.8610
Severe: avg_pge=0.9959, expected range: -0.0003 0.0066
MANUAL LAND SYNOP RH2M (%) 54102 : out of range
Severe: rms_fgdepar=31.0279, expected range: 0.0000 16.6886
MANUAL LAND SYNOP RH2M (%) 94816 : out of range
Severe: rms_fgdepar=36.8068, expected range: 0.0000 26.9150
Severe: avg_pge=0.8331, expected range: -0.0020 0.0083
MANUAL LAND SYNOP RH2M (%) 59046 : out of range
Severe: rms_fgdepar=32.8812, expected range: 0.0000 17.5288
MANUAL LAND SYNOP RH2M (%) 42177 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9493, expected range: -0.6093 0.6989
MANUAL LAND SYNOP RH2M (%) 44438 : out of range
Severe: rms_fgdepar=41.3586, expected range: 0.0000 21.9097
MANUAL LAND SYNOP RH2M (%) 41768 : out of range
Severe: rms_fgdepar=47.8914, expected range: 0.0000 19.9534
Severe: avg_pge=0.9995, expected range: -0.0176 0.0272
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 17090 : out of range
Severe: rms_fgdepar=533.6437, expected range: 8.9774 160.9068
Severe: avg_pge=0.8711, expected range: -0.0702 0.0897
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 94661 : out of range
Severe: rms_fgdepar=922.5414, expected range: 0.0000 122.9135
Severe: avg_pge=0.9338, expected range: 0.0000 0.0000
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 02942 : out of range
Severe: rms_fgdepar=386.7294, expected range: 0.0000 86.3528
BUFR LAND SYNOP RH2M (%) 94334 : out of range
Severe: avg_pge=0.9852, expected range: -0.8207 0.7500
BUFR LAND SYNOP RH2M (%) 94816 : out of range
Severe: rms_fgdepar=36.9755, expected range: 0.0000 26.2618
Severe: avg_pge=0.8468, expected range: -0.0072 0.0139
BUFR LAND SYNOP RH2M (%) 94377 : out of range
Severe: avg_pge=0.9023, expected range: -0.1700 0.1991
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94661 : out of range
Severe: rms_fgdepar=911.6536, expected range: 0.0000 90.8194
Severe: avg_pge=0.9252, expected range: 0.0000 0.0000
BUFR LAND SYNOP SURFACE PRESSURE (PA) 02942 : out of range
Severe: rms_fgdepar=308.0229, expected range: 0.0000 75.2258
BUFR LAND SYNOP SURFACE PRESSURE (PA) 92035 : out of range
Severe: rms_fgdepar=476.3670, expected range: 0.0000 180.7214
Severe: avg_pge=0.8781, expected range: -0.6639 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 30637 : out of range
Severe: rms_fgdepar=625.2098, expected range: 0.0000 299.5608
Severe: avg_pge=0.9157, expected range: -0.7964 0.7500
MANUAL LAND SYNOP RH2M (%) : out of range
Slight: avg_fgdepar=2.6631, expected range: 0.2090 2.3845
ship
SHIP WIND VECTOR DIFF (M/S) VRGE7 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8547, expected range: 0.0434 0.7500
SHIP WIND VECTOR DIFF (M/S) ONFZ : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9085, expected range: -0.1923 0.7500
SHIP SURFACE PRESSURE (PA) 9V9450 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8400, expected range: -0.8480 0.7500
SHIP SURFACE PRESSURE (PA) 9V8503 : out of range
Severe: avg_pge=0.8087, expected range: -1.0244 0.7500
SHIP SURFACE PRESSURE (PA) VRMD3 : out of range
Severe: avg_pge=0.9038, expected range: -0.2573 0.7500
SHIP SURFACE PRESSURE (PA) C6SE3 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8023, expected range: -1.2909 0.7500
SHIP SURFACE PRESSURE (PA) S6LT3 : out of range
Severe: rms_fgdepar=454.5023, expected range: 0.0000 374.8572
Severe: avg_pge=0.8595, expected range: -0.7789 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=0.8359, expected range: -0.9904 0.7500
SHIP SURFACE PRESSURE (PA) MBFI9 : out of range
Severe: avg_pge=0.8233, expected range: -1.4019 0.7500
SHIP SURFACE PRESSURE (PA) WFLH : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8140, expected range: 0.0766 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: obs_number=36.0000, expected range: 58.9284 72.1271
DRIFTING BUOYS SURFACE PRESSURE (PA) 2101634 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8441, expected range: -1.0464 0.7500
metar
METAR SURFACE PRESSURE (PA) SBCH : out of range
Severe: rms_fgdepar=329.4846, expected range: 0.0000 144.9912
METAR SURFACE PRESSURE (PA) OIGK : out of range
Severe: rms_fgdepar=745.3420, expected range: 0.0000 677.0673
Severe: avg_pge=0.8318, expected range: -1.0036 0.7500
AUTOMATIC METAR SURFACE PRESSURE (PA) PFNO : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=307.5591, expected range: 0.0000 164.1673
snow
BUFR LAND SYNOP SNOW (CM) : out of range
6 times in the last 10 days for at least one item
Slight: avg_fgdepar=0.0042, expected range: -5.3933 -0.7099
t2m
MANUAL LAND SYNOP 2M TEMPERATURE (K) : out of range
9 times in the last 10 days for at least one item
Severely_persistent: obs_number=125.0000, expected range: 95.3764 104.2118
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71133 : out of range
Severe: rms_fgdepar=8.0793, expected range: 0.0000 4.4417
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 06785 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=12.2523, expected range: 0.0000 5.8646
Severe: avg_est_pge=0.8265, expected range: -0.1286 0.6970
MANUAL LAND SYNOP 2M TEMPERATURE (K) 60690 : out of range
Severe: rms_fgdepar=9.7755, expected range: 0.0000 3.8892
MANUAL LAND SYNOP 2M TEMPERATURE (K) 15261 : out of range
Severe: rms_fgdepar=12.3240, expected range: 0.0000 5.8987
MANUAL LAND SYNOP 2M TEMPERATURE (K) 15302 : out of range
Severe: rms_fgdepar=9.4159, expected range: 0.0000 4.9325
MANUAL LAND SYNOP 2M TEMPERATURE (K) 72564 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=15.5082, expected range: 0.0000 4.1522
Severe: avg_est_pge=0.8647, expected range: -0.2768 0.5217
MANUAL LAND SYNOP 2M TEMPERATURE (K) 12625 : out of range
Severe: rms_fgdepar=7.6822, expected range: 0.6231 4.5732
MANUAL LAND SYNOP 2M TEMPERATURE (K) 15285 : out of range
Severe: rms_fgdepar=8.3310, expected range: 0.0000 4.0753
MANUAL LAND SYNOP 2M TEMPERATURE (K) 56106 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8149, expected range: 0.1252 1.0266
MANUAL LAND SYNOP 2M TEMPERATURE (K) 33526 : out of range
Severe: rms_fgdepar=9.6382, expected range: 0.0000 4.2778
MANUAL LAND SYNOP 2M TEMPERATURE (K) 24966 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.0560, expected range: 0.0000 3.9738
METAR 2M TEMPERATURE (K) KBJC : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=12.2911, expected range: 0.2722 6.1518
METAR 2M TEMPERATURE (K) KMCN : out of range
Severe: rms_fgdepar=11.6699, expected range: 1.0615 6.5438
METAR 2M TEMPERATURE (K) EDMO : out of range
Severe: rms_fgdepar=9.9433, expected range: 0.0000 4.1654
METAR 2M TEMPERATURE (K) KCYS : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=14.5945, expected range: 0.9373 5.8216
METAR 2M TEMPERATURE (K) LOXZ : out of range
Severe: rms_fgdepar=8.0581, expected range: 1.0410 4.9234
LAND TEMP 2M TEMPERATURE (K) 29862 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8105, expected range: -0.5551 1.0607
LAND TEMP 2M TEMPERATURE (K) 04417 : out of range
4 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8218, expected range: -0.3679 1.3895
LAND TEMP 2M TEMPERATURE (K) 24908 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.3262, expected range: 0.0000 5.0453
Severe: avg_est_pge=0.8343, expected range: -0.4409 0.7957
LAND TEMP 2M TEMPERATURE (K) 56029 : out of range
2 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8352, expected range: 0.2052 1.1039
BUFR LAND SYNOP 2M TEMPERATURE (K) 33651 : out of range
Severe: rms_fgdepar=8.5152, expected range: 0.0000 4.2750
BUFR LAND SYNOP 2M TEMPERATURE (K) 15261 : out of range
Severe: rms_fgdepar=12.3455, expected range: 0.0000 5.8670
BUFR LAND SYNOP 2M TEMPERATURE (K) 15302 : out of range
Severe: rms_fgdepar=9.2961, expected range: 0.0000 4.9336
BUFR LAND SYNOP 2M TEMPERATURE (K) 10962 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.4004, expected range: 0.0000 3.9781
BUFR LAND SYNOP 2M TEMPERATURE (K) 15285 : out of range
Severe: rms_fgdepar=8.3043, expected range: 0.0000 4.0930
BUFR LAND SYNOP 2M TEMPERATURE (K) 06785 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=12.1992, expected range: 0.0000 5.7037
Severe: avg_est_pge=0.8258, expected range: -0.1348 0.6817
BUFR LAND SYNOP 2M TEMPERATURE (K) 33647 : out of range
Severe: rms_fgdepar=9.1725, expected range: 0.0000 4.8983
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
Slight: rms_fgdepar=2.4054, expected range: 2.0991 2.3512
rh2m
LAND TEMP RH2M (%) 72249 : out of range
Severe: rms_fgdepar=30.6711, expected range: 0.0000 14.2462
BUFR LAND SYNOP RH2M (%) 94232 : out of range
Severe: rms_fgdepar=39.5966, expected range: 0.0000 20.4921