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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2020-08-03 12:00

cris
NPP CRIS RADIANCES CHANNEL 107 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1864, expected range: 0.1257 0.1561
NPP CRIS RADIANCES CHANNEL 108 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1476, expected range: 0.0885 0.1190
NOAA20 CRIS RADIANCES CHANNEL 107 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2146, expected range: 0.1561 0.1852
NOAA20 CRIS RADIANCES CHANNEL 119 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1798, expected range: 0.1258 0.1564
NPP CRIS RADIANCES CHANNEL 119 : out of range
4 times in the last 10 days for at least one item
Considerable: avg_biascorr=0.1882, expected range: 0.1340 0.1678
NOAA20 CRIS RADIANCES CHANNEL 108 : out of range
4 times in the last 10 days for at least one item
Considerable: avg_biascorr=0.1806, expected range: 0.1197 0.1599
airs
AQUA AIRS RADIANCES CHANNEL 1948 : missing
Severe: obs_number=0.0000, expected range: 2069.8355 4005.8115
AQUA AIRS RADIANCES CHANNEL 2164 : missing
1 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 632.0227 2058.8479
Atmospheric Motion Vector
METEOSAT-11 AMV IR3 WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HP : out of range
Severe: stdev_fgdepar=2.2449, expected range: 1.0267 1.5473
Radiosondes
LAND TEMP TEMPERATURE (K) 61660 PRESSURE LAYER 0-300 (HPA) : out of range
32 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=5.1519, expected range: 18.7894 23.4802
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (2 pressure layers affected : missing
1 times in the last 10 days for at least one item
Severely_persistent: obs_number=0.0000, expected range: 12.7098 464.8811
Severely_persistent: obs_number=0.0000, expected range: 17.4230 761.5712
Severe: obs_number=0.0000, expected range: 0.0000 653.9282
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (3 pressure layers affected : missing
7 times in the last 10 days for at least one item
Severely_persistent: obs_number=0.0000, expected range: 29.7359 615.1234
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 26 : all data missing
Severely_persistent: obs_number=0, expected range: 81.37 142.13
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 84 : all data missing
Severely_persistent: obs_number=0, expected range: 15.81 215.39
HIGH RESO SEA TEMP WIND VECTOR DIFF (M/S) (3 pressure layers affected) : missing
9 times in the last 10 days for at least one item
Severely_persistent: obs_number=0.0000, expected range: 0.0000 845.7086
LAND TEMP Q (G/KG) 83840 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.3184, expected range: 0.0000 1.1836
LAND TEMP WIND VECTOR DIFF (M/S) 21824 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_pge=0.8112, expected range: -0.4854 0.6820
LAND TEMP TEMPERATURE (K) 21824 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=6.8987, expected range: 0.0000 2.6631
All LAND TEMP ALL LAYERS WMO BLOCK 62 : all data missing
Severe: obs_number=0, expected range: 0.00 347.36
HIGH RESO LAND TEMP Q (G/KG) 57127 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=3.3860, expected range: 0.0000 1.8371
HIGH RESO LAND TEMP Q (G/KG) 54161 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=-6.0243, expected range: -5.6137 3.4978
Severe: rms_fgdepar=6.0811, expected range: 0.0000 4.8883
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 900-1200 (HPA) : missing
Severe: obs_number=0.0000, expected range: 22.5175 465.6780
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : missing
1 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 160.3717 215.0569
HIGH RESO SEA TEMP Q (G/KG) PRESSURE LAYER 0-300 (HPA) : missing
2 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 0.0000 675.6221
Severe: obs_number=0.0000, expected range: 0.0000 680.2007
LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: obs_number=244.0000, expected range: 110.6184 196.1316
amdar
AMDAR WIND VECTOR DIFF (M/S) BR436594 PRESSURE LAYER 0-300 (HPA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=23.1023, expected range: -3.2367 25.2220
Severely_persistent: rms_fgdepar=23.7703, expected range: 0.0000 24.5525
Severely_persistent: avg_pge=0.8432, expected range: -0.5534 0.7500
AMDAR WIND VECTOR DIFF (M/S) BR151888 PRESSURE LAYER 300-600 (HPA) : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8190, expected range: -0.6759 0.7500
AMDAR TEMPERATURE (K) CNFKQP PRESSURE LAYER 600-900 (HPA) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-9.0706, expected range: -18.7116 6.9913
Severely_persistent: rms_fgdepar=12.1075, expected range: 0.0000 21.8249
AMDAR WIND VECTOR DIFF (M/S) BR712393 PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=25.0174, expected range: -20.9594 58.7450
Severe: rms_fgdepar=25.0174, expected range: 0.0000 58.8366
Severe: avg_pge=0.8711, expected range: 0.1610 0.7500
AMDAR WIND VECTOR DIFF (M/S) BR845607 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=27.3668, expected range: 7.5099 19.3239
Severe: rms_fgdepar=27.9606, expected range: 8.7027 20.0022
Severe: avg_pge=0.8732, expected range: 0.2080 0.7500
AMDAR WIND VECTOR DIFF (M/S) THT68 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.1259, expected range: 1.6374 4.9661
WIGOS AMDAR TEMPERATURE (K) EU0758 PRESSURE LAYER 0-300 (HPA) : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8190, expected range: 0.8116 0.7500
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 48480 PRESSURE LAYER 0-300 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=22.1250, expected range: 0.0000 36.3593
LAND PILOT WIND VECTOR DIFF (M/S) 98618 PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=27.9631, expected range: -9.1287 22.0339
Severe: rms_fgdepar=27.9631, expected range: 0.0000 24.5556
Severe: avg_pge=0.8485, expected range: -1.1568 0.7500
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 67781 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8449, expected range: 0.7570 0.7500
MANUAL LAND SYNOP RH2M (%) 80410 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=58.8601, expected range: 1.4025 89.1075
Severely_persistent: rms_fgdepar=58.8601, expected range: 1.4747 89.0593
Severely_persistent: avg_pge=1.0000, expected range: -0.8867 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 55664 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-559.2374, expected range: -1673.8860 1215.4439
Severely_persistent: rms_fgdepar=562.3521, expected range: -1348.8065 1856.0774
Severely_persistent: avg_pge=0.8679, expected range: -1.6304 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 41992 : out of range
Severe: rms_fgdepar=630.3210, expected range: 0.0000 251.7063
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42463 : out of range
Severe: rms_fgdepar=580.3682, expected range: 0.0000 234.4650
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 82795 : out of range
Severe: rms_fgdepar=688.6091, expected range: 0.0000 242.5278
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 41756 : out of range
Severe: avg_pge=0.8088, expected range: -0.9956 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 82976 : out of range
Severe: avg_fgdepar=-873.2882, expected range: 1.0193 166.0041
Severe: rms_fgdepar=873.2882, expected range: 10.6755 158.7784
Severe: avg_pge=0.9282, expected range: -0.3845 0.7433
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 60417 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8651, expected range: 0.2002 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42177 : out of range
Severe: rms_fgdepar=487.9341, expected range: 0.0000 309.3183
Severe: avg_pge=0.8346, expected range: -1.1457 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83768 : out of range
Severe: rms_fgdepar=376.7238, expected range: 0.0000 78.7811
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43029 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8642, expected range: -0.9834 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42639 : out of range
Severe: avg_fgdepar=1000.3966, expected range: -133.1446 222.2205
Severe: rms_fgdepar=1000.3966, expected range: 0.0000 171.8266
Severe: avg_pge=0.9413, expected range: -0.9132 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 41989 : out of range
Severe: avg_fgdepar=1168.4826, expected range: -401.8303 564.0740
Severe: rms_fgdepar=1175.8344, expected range: 0.0000 520.3354
Severe: avg_pge=0.9533, expected range: -0.6553 0.7500
MANUAL LAND SYNOP RH2M (%) 66226 : out of range
Severe: rms_fgdepar=40.9112, expected range: 0.2566 21.0026
Severe: avg_pge=0.9863, expected range: -0.0025 0.0131
MANUAL LAND SYNOP RH2M (%) 83319 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8338, expected range: -0.9010 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 51711 : out of range
Severe: rms_fgdepar=336.2878, expected range: 0.0000 176.2776
BUFR LAND SYNOP SURFACE PRESSURE (PA) 25151 : out of range
Severe: rms_fgdepar=342.9722, expected range: 0.0000 110.6907
BUFR LAND SYNOP SURFACE PRESSURE (PA) 61461 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8313, expected range: 0.3871 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48064 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8591, expected range: -1.1594 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 61265 : out of range
Severe: rms_fgdepar=336.9802, expected range: 0.0000 181.6725
BUFR LAND SYNOP SURFACE PRESSURE (PA) 82976 : out of range
Severe: avg_fgdepar=-873.2882, expected range: 1.0193 166.0041
Severe: rms_fgdepar=873.2882, expected range: 10.6755 158.7784
BUFR LAND SYNOP RH2M (%) 72266 : out of range
Severe: avg_fgdepar=50.1378, expected range: -26.1218 39.0786
Severe: rms_fgdepar=50.1378, expected range: 0.0000 35.2133
BUFR LAND SYNOP RH2M (%) 52818 : out of range
Severe: rms_fgdepar=30.3750, expected range: 0.0000 13.5261
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
Considerable: rms_fgdepar=214.9725, expected range: 45.7586 155.4024
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=53.0000, expected range: 65.8363 80.4137
BUFR LAND SYNOP RH2M (%) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=150.0000, expected range: 168.6707 175.0793
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) ELDMMXN : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8665, expected range: 0.4523 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRGO2 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=650.2369, expected range: -643.2094 1428.5505
Severe: rms_fgdepar=650.4214, expected range: 0.0000 1298.0987
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WYT8569 : out of range
Severe: avg_pge=0.8154, expected range: -1.1388 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) V7UU6 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8886, expected range: -0.4678 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) EUCFR07 : out of range
Severe: rms_fgdepar=15.7907, expected range: 0.0000 6.7354
Severe: avg_pge=0.9013, expected range: -0.5396 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 1501748 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=526.4134, expected range: 0.0000 831.6543
Severely_persistent: avg_pge=0.8445, expected range: 0.2105 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2301790 : out of range
Severe: rms_fgdepar=413.3596, expected range: 0.0000 126.9702
DRIFTING BUOYS SURFACE PRESSURE (PA) 1701617 : out of range
Severe: rms_fgdepar=524.7919, expected range: 0.0000 298.6399
Severe: avg_pge=0.8082, expected range: -0.8774 0.7500
metar
METAR SURFACE PRESSURE (PA) GAMB : out of range
Severe: rms_fgdepar=371.6881, expected range: 0.0000 206.6081
METAR SURFACE PRESSURE (PA) HTDO : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=357.5139, expected range: 0.0000 134.2075
t2m
BUFR LAND SYNOP 2M TEMPERATURE (K) 27415 : out of range
34 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-18.0887, expected range: -20.4305 -10.5622
Severely_persistent: rms_fgdepar=18.1742, expected range: 10.7898 20.9987
MANUAL LAND SYNOP 2M TEMPERATURE (K) 68032 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-16.5852, expected range: -14.3083 15.3232
Severe: rms_fgdepar=16.5852, expected range: 0.0702 9.9115
Severe: avg_est_pge=0.8689, expected range: 0.1563 0.8542
METAR 2M TEMPERATURE (K) YBTL : out of range
Severe: avg_fgdepar=14.4816, expected range: -3.0416 5.0287
Severe: rms_fgdepar=14.4816, expected range: 0.6536 4.3050