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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-09-10 00:00

cris
NPP/CRIS RADIANCES CHANNEL 781 : out of range
Severe: avg_fgdepar=-18.9994, expected range: -0.0197 0.0572
Severe: stdev_fgdepar=1.4755, expected range: 0.2103 0.2808
NPP/CRIS RADIANCES CHANNEL 789 : out of range
Severe: avg_fgdepar=-38.9833, expected range: -0.0105 0.0704
Severe: stdev_fgdepar=3.1015, expected range: 0.1856 0.2394
Considerable: obs_number=3696.0000, expected range: 5139.7164 7860.6836
NPP/CRIS RADIANCES CHANNEL 806 : out of range
Severe: avg_fgdepar=14.4314, expected range: -0.0937 0.1246
Severe: stdev_fgdepar=1.4806, expected range: 0.5458 0.6310
Severe: avg_biascorr=5.0862, expected range: -0.0543 0.0646
NPP/CRIS RADIANCES CHANNEL 868 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=25.3024, expected range: -0.1167 0.1749
Severe: stdev_fgdepar=5.4148, expected range: 1.0075 1.2684
Severe: avg_biascorr=10.2679, expected range: 0.0029 0.1066
NPP/CRIS RADIANCES CHANNEL 912 : out of range
Severe: avg_fgdepar=-45.7870, expected range: -0.1138 0.1500
Severe: stdev_fgdepar=5.2370, expected range: 0.8727 1.1523
Severe: avg_biascorr=-17.8306, expected range: 0.1779 0.2783
Severe: obs_number=5791.0000, expected range: 13326.0531 15392.9469
NPP/CRIS RADIANCES CHANNEL 963 : out of range
Severe: avg_fgdepar=-40.2763, expected range: -0.1116 0.1469
Severe: stdev_fgdepar=5.6592, expected range: 0.8760 1.1350
Severe: avg_biascorr=-17.4490, expected range: 0.0706 0.1836
Severe: obs_number=7344.0000, expected range: 13305.3155 15344.0845
NPP/CRIS RADIANCES CHANNEL 993 : out of range
Severe: avg_fgdepar=-48.9461, expected range: -0.1141 0.1516
Severe: stdev_fgdepar=7.3862, expected range: 0.7373 0.9946
Severe: obs_number=7247.0000, expected range: 14867.9729 16967.8271
NOAA20/CRIS RADIANCES (230 channels affected) : out of range
Severe: obs_number=124984.0000, expected range: 21052.2236 24151.2764
NOAA20/CRIS RADIANCES (174 channels affected) : out of range
Severe: avg_biascorr=0.2543, expected range: 0.3123 0.3574
NOAA20/CRIS RADIANCES (203 channels affected) : out of range
Severe: stdev_fgdepar=0.1477, expected range: 0.0924 0.1155
gpsro
METOP-A/GRAS SETTING (24 impact heights affected) : out of range
Severe: obs_number=886.0000, expected range: 1487.1649 2139.4297
METOP-A/GRAS RISING (24 impact heights affected) : out of range
Considerable: obs_number=771.0000, expected range: 1083.0402 1822.9598
Atmospheric Motion Vector
HIMAWARI-8 AMV VIS1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HP : out of range
Slight: stdev_fgdepar=1.1273, expected range: 0.8869 1.0839
Radiosondes
LAND TEMP TEMPERATURE (K) 42634 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=9.8452, expected range: 0.0000 4.1005
LAND TEMP TEMPERATURE (K) 42706 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=14.1295, expected range: 0.0000 4.8241
LAND TEMP TEMPERATURE (K) 89009 PRESSURE LAYER 600-900 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8741, expected range: -0.0647 0.7500
LAND TEMP Q (G/KG) 91680 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=5.7883, expected range: 0.0000 2.5404
HIGH RESO LAND TEMP TEMPERATURE (K) 07510 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=8.1066, expected range: 0.0229 0.7237
Severe: avg_pge=0.8483, expected range: -0.1618 0.1899
HIGH RESO LAND TEMP Q (G/KG) (4 pressure layers affected) : out of range
3 times in the last 10 days for at least one item
Severe: obs_number=278.0000, expected range: 373.6737 473.2152
All HIGH RESO SEA TEMP TEMPERATURE (K) ALL LAYERS North Atlantic : all data missing
Severe: obs_number=0, expected range: 0.00 705.19
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 67083 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_pge=0.8439, expected range: -0.5098 0.7500
LAND PILOT WIND VECTOR DIFF (M/S) 97260 PRESSURE LAYER 600-900 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8255, expected range: -0.6406 0.7500
LAND PILOT WIND VECTOR DIFF (M/S) 96739 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=20.4388, expected range: 0.0285 5.2420
Severe: avg_pge=0.8152, expected range: -0.5206 0.7500
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 68362 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=547.9583, expected range: 0.0000 113.2580
Severely_persistent: avg_pge=0.9112, expected range: -0.4366 0.6323
BUFR LAND SYNOP RH2M (%) : out of range
8 times in the last 10 days for at least one item
Severely_persistent: obs_number=148.0000, expected range: 163.1570 171.9018
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48921 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8255, expected range: -1.2375 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 89879 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9447, expected range: -1.8335 0.7500
MANUAL LAND SYNOP RH2M (%) 94463 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=40.7838, expected range: 0.0000 14.7404
MANUAL LAND SYNOP RH2M (%) 40016 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9696, expected range: -1.5614 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83650 : out of range
Severe: rms_fgdepar=568.5350, expected range: 0.0000 296.0687
Severe: avg_pge=0.9055, expected range: -1.0153 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 13594 : out of range
Severe: rms_fgdepar=316.3387, expected range: 0.0000 84.7953
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 76737 : out of range
Severe: rms_fgdepar=367.8219, expected range: 0.0000 105.2766
MANUAL LAND SYNOP Z (M) 38869 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8429, expected range: -1.0595 0.7500
BUFR LAND SYNOP RH2M (%) 94463 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=40.6374, expected range: 0.0000 9.9551
BUFR LAND SYNOP RH2M (%) 95627 : out of range
Severe: rms_fgdepar=47.6598, expected range: 0.0000 30.3220
Severe: avg_pge=0.9993, expected range: -0.0039 0.0109
BUFR LAND SYNOP RH2M (%) 72698 : out of range
Severe: rms_fgdepar=28.9345, expected range: 0.0000 14.1215
BUFR LAND SYNOP RH2M (%) 94439 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=1.0000, expected range: -0.0635 0.0930
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24261 : out of range
Severe: rms_fgdepar=559.9107, expected range: 0.0000 215.5908
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48403 : out of range
Severe: rms_fgdepar=382.5171, expected range: 0.0000 162.0650
BUFR LAND SYNOP SURFACE PRESSURE (PA) 33634 : out of range
Severe: rms_fgdepar=385.3525, expected range: 0.0000 137.0095
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48955 : out of range
Severe: rms_fgdepar=417.8428, expected range: 0.0000 188.2655
BUFR LAND SYNOP SURFACE PRESSURE (PA) 92047 : out of range
Severe: rms_fgdepar=615.7289, expected range: 0.0000 129.6836
Severe: avg_pge=0.9135, expected range: -0.0845 0.0941
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94439 : out of range
Severe: rms_fgdepar=352.0860, expected range: 0.0000 312.8735
Severe: avg_pge=0.8151, expected range: -1.1503 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 23179 : out of range
Severe: rms_fgdepar=392.8945, expected range: 0.0000 182.3747
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=51.0000, expected range: 56.1819 67.2299
ship
SHIP SURFACE PRESSURE (PA) 9V9498 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8139, expected range: -1.2315 0.7500
SHIP SURFACE PRESSURE (PA) UDKG : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8033, expected range: -1.0295 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) 44058 : out of range
Severe: avg_pge=0.8270, expected range: -0.3907 0.7500
SHIP SURFACE PRESSURE (PA) TBWUK52 : out of range
Severe: avg_pge=0.8176, expected range: -0.9504 0.7500
SHIP SURFACE PRESSURE (PA) 9VDD2 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8960, expected range: -0.3553 0.7500
SHIP SURFACE PRESSURE (PA) OZDQ2 : out of range
Severe: avg_pge=0.8702, expected range: -1.2428 0.7500
SHIP SURFACE PRESSURE (PA) WCQ6174 : out of range
Severe: rms_fgdepar=894.7494, expected range: 0.0000 474.7711
Severe: avg_pge=0.9235, expected range: -0.9400 0.7500
SHIP SURFACE PRESSURE (PA) VRPN6 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8751, expected range: -1.2097 0.7500
SHIP SURFACE PRESSURE (PA) PBKH : out of range
Severe: rms_fgdepar=920.9000, expected range: 0.0000 295.6866
Severe: avg_pge=0.9277, expected range: -0.8139 0.7500
SHIP WIND VECTOR DIFF (M/S) DFDE2 : out of range
Severe: avg_pge=0.9431, expected range: -0.2432 0.7500
SHIP WIND VECTOR DIFF (M/S) V7FJ8 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8670, expected range: -0.5485 0.7500
buoy
MOORED BUOYS SURFACE PRESSURE (PA) 6101001 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8335, expected range: -0.4665 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
4 times in the last 10 days for at least one item
Slight: obs_number=8659.0000, expected range: 8952.3906 10184.6649
metar
METAR SURFACE PRESSURE (PA) LLHA : out of range
Severe: rms_fgdepar=592.3220, expected range: 0.0000 169.8871
METAR SURFACE PRESSURE (PA) LIVD : out of range
Severe: rms_fgdepar=387.2623, expected range: 0.0000 204.9528
AUTOMATIC METAR SURFACE PRESSURE (PA) : out of range
4 times in the last 10 days for at least one item
Severe: avg_biascorr=-120.0000, expected range: 0.0000 0.0000
snow
MANUAL LAND SYNOP SNOW (CM) : out of range
Severe: avg_fgdepar=0.0692, expected range: 0.0000 0.0000
Severe: rms_fgdepar=0.7894, expected range: 0.0000 0.0000
BUFR LAND SYNOP SNOW (CM) : out of range
Severe: rms_fgdepar=0.8336, expected range: 0.0000 0.0000
t2m
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89504 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8025, expected range: 0.5804 0.9736
LAND TEMP 2M TEMPERATURE (K) 89009 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8932, expected range: 0.2265 1.1975
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
8 times in the last 10 days for at least one item
Severely_persistent: obs_number=78.0000, expected range: 63.4710 69.0584
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89799 : out of range
4 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8146, expected range: 0.2755 1.0731
METAR 2M TEMPERATURE (K) ULLI : out of range
Severe: rms_fgdepar=9.8513, expected range: 0.0841 3.7581
METAR 2M TEMPERATURE (K) KDSM : out of range
Severe: rms_fgdepar=7.6965, expected range: 0.0000 4.0286
METAR 2M TEMPERATURE (K) KDBQ : out of range
Severe: rms_fgdepar=7.9002, expected range: 0.2916 3.8285
rh2m
MANUAL LAND SYNOP RH2M (%) 20087 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=25.7028, expected range: 0.0000 14.3313
MANUAL LAND SYNOP RH2M (%) : out of range
3 times in the last 10 days for at least one item
Severe: obs_number=65.0000, expected range: 66.0000 66.0000