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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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

amsua
NOAA-19/AMSUA RADIANCES CHANNEL 6 : out of range
Slight: stdev_fgdepar=0.1606, expected range: 0.1432 0.1548
iasi
METOP-C/IASI RADIANCES CHANNEL 1780 : out of range
Severe: stdev_fgdepar=0.3147, expected range: 0.2259 0.2835
gmi
ALLSKY GPM/GMI RADIANCES CHANNEL 11 : out of range
Considerable: avg_norm_fgdepar=0.0943, expected range: -0.0576 0.0614
ssmis
DMSP-18/SSMIS RADIANCES (17 channels affected) : out of range
Considerable: obs_number=10317.0000, expected range: 11586.0461 16659.1431
Radiosondes
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 04270 PRESSURE LAYER 900-12 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8661, expected range: -1.1930 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 30935 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=20.9788, expected range: 0.0000 6.0720
LAND TEMP TEMPERATURE (K) 25123 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=6.3694, expected range: 0.0000 5.1443
Severe: avg_pge=0.8235, expected range: -0.6967 0.7500
LAND TEMP TEMPERATURE (K) 23955 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=7.8774, expected range: 0.0000 2.7207
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.2509, expected range: 0.0705 1.1781
Considerable: obs_number=532.0000, expected range: 574.0892 681.6608
amdar
WIGOS AMDAR TEMPERATURE (K) EU5262 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=6.3757, expected range: 0.0000 1.9474
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 41768 PRESSURE LAYER 300-600 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8848, expected range: -1.0667 0.7500
synop
MANUAL LAND SYNOP RH2M (%) 64700 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9996, expected range: -1.7888 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42266 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8414, expected range: -1.4514 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71750 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8060, expected range: -1.3015 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94654 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8639, expected range: -1.6481 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 60018 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8343, expected range: 0.6690 0.7500
MANUAL LAND SYNOP RH2M (%) 41560 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9408, expected range: -0.5676 0.7500
MANUAL LAND SYNOP RH2M (%) 37212 : out of range
Severe: rms_fgdepar=47.9507, expected range: 0.0000 35.9200
Severe: avg_pge=0.8766, expected range: -0.3320 0.3715
MANUAL LAND SYNOP RH2M (%) 40662 : out of range
Severe: rms_fgdepar=43.2924, expected range: 0.0000 32.7966
Severe: avg_pge=0.9390, expected range: -0.0438 0.0558
MANUAL LAND SYNOP RH2M (%) 67243 : out of range
Severe: avg_pge=0.9999, expected range: -0.6044 0.7240
MANUAL LAND SYNOP RH2M (%) 64708 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9895, expected range: -1.5941 0.7500
MANUAL LAND SYNOP RH2M (%) 67869 : out of range
Severe: rms_fgdepar=42.8672, expected range: 0.0000 8.6155
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42441 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8685, expected range: -0.9785 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43367 : out of range
Severe: avg_pge=0.8590, expected range: -1.2948 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 60518 : out of range
Severe: rms_fgdepar=344.0604, expected range: -127.9542 187.1922
Severe: avg_pge=0.8074, expected range: -0.7947 0.7500
BUFR LAND SYNOP RH2M (%) 41136 : out of range
Severe: rms_fgdepar=22.8173, expected range: 0.0000 9.9074
BUFR LAND SYNOP RH2M (%) 23657 : out of range
Severe: rms_fgdepar=16.1666, expected range: 0.0000 8.5838
BUFR LAND SYNOP SURFACE PRESSURE (PA) 81982 : out of range
Severe: rms_fgdepar=514.8640, expected range: 0.0000 270.2851
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71055 : out of range
Severe: rms_fgdepar=370.5052, expected range: 0.0000 124.3271
Severe: avg_pge=0.8476, expected range: -0.5525 0.7128
BUFR LAND SYNOP SURFACE PRESSURE (PA) 61995 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8741, expected range: -1.1175 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 04166 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8777, expected range: -0.1411 0.7500
ship
SHIP WIND VECTOR DIFF (M/S) VRKQ5 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8754, expected range: -0.3368 0.7500
SHIP WIND VECTOR DIFF (M/S) WYQ4356 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=11.5108, expected range: 0.0000 9.6715
Severely_persistent: avg_pge=0.8762, expected range: -0.5081 0.7500
SHIP WIND VECTOR DIFF (M/S) PBGJ : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8677, expected range: 0.3590 0.7500
SHIP SURFACE PRESSURE (PA) C6BR3 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8128, expected range: -1.3106 0.7500
SHIP SURFACE PRESSURE (PA) CQHW : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8162, expected range: -0.6913 0.7500
SHIP SURFACE PRESSURE (PA) C6SE4 : out of range
Severe: rms_fgdepar=905.1442, expected range: 0.0000 259.9933
Severe: avg_pge=0.9306, expected range: -0.9911 0.7500
SHIP SURFACE PRESSURE (PA) 9HA3097 : out of range
Severe: rms_fgdepar=476.9482, expected range: 0.0000 194.6899
SHIP SURFACE PRESSURE (PA) A8SI9 : out of range
Severe: avg_pge=0.8474, expected range: -1.0748 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=49.0602, expected range: -16.5609 18.2431
Severely_persistent: avg_biascorr=-26.0064, expected range: -5.5626 5.1988
DRIFTING BUOYS SURFACE PRESSURE (PA) 2501540 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8680, expected range: -1.5495 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6401570 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8281, expected range: -0.9669 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4802514 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9007, expected range: -1.2944 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101707 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=638.6946, expected range: -280.7327 385.4363
Severely_persistent: avg_pge=0.9069, expected range: -1.2673 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2301788 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8652, expected range: -1.3540 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6301690 : out of range
Severe: rms_fgdepar=521.6692, expected range: 0.0000 139.5741
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101713 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=320.7619, expected range: 0.0000 97.1199
DRIFTING BUOYS SURFACE PRESSURE (PA) 2501665 : out of range
Severe: rms_fgdepar=328.7999, expected range: 0.0000 178.1575
DRIFTING BUOYS SURFACE PRESSURE (PA) 2501667 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9006, expected range: 0.0175 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4801667 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8081, expected range: -0.9559 0.7500
metar
METAR SURFACE PRESSURE (PA) FNCT : out of range
Severe: rms_fgdepar=871.4901, expected range: 0.0000 396.7097
METAR SURFACE PRESSURE (PA) FNKU : out of range
Severe: rms_fgdepar=524.9601, expected range: 0.0000 298.2107
snow
BUFR LAND SYNOP SNOW (CM) : out of range
17 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=0.3446, expected range: -0.0231 0.0270
t2m
MANUAL LAND SYNOP 2M TEMPERATURE (K) 29313 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=9.5377, expected range: 0.0000 3.7712
LAND TEMP 2M TEMPERATURE (K) 56029 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8804, expected range: 0.7058 0.9642
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 11310 : out of range
Severe: avg_est_pge=0.8079, expected range: -0.4873 1.0111
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71520 : out of range
Severe: rms_fgdepar=7.0443, expected range: 0.0000 2.7539
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 06750 : out of range
Severe: rms_fgdepar=8.3557, expected range: 0.0000 2.9582
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 01023 : out of range
3 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8132, expected range: -0.5665 1.0409
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 11263 : out of range
Severe: rms_fgdepar=8.6730, expected range: 0.0000 4.8232
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 01183 : out of range
Severe: rms_fgdepar=8.0659, expected range: 0.0000 3.7251
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 06793 : out of range
Severe: rms_fgdepar=8.0858, expected range: 0.0000 4.3801
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 01064 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=15.7131, expected range: 0.0000 6.4543
Severe: avg_est_pge=0.8324, expected range: -0.2865 0.5882
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71364 : out of range
Severe: rms_fgdepar=8.1791, expected range: 0.0000 3.8525
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 01084 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=11.7391, expected range: 0.0000 5.3742
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=11.5564, expected range: 0.0000 6.1225
Severe: avg_est_pge=0.8192, expected range: -0.2891 0.7126
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71795 : out of range
Severe: rms_fgdepar=7.9354, expected range: 0.0000 3.8787
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71226 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.5902, expected range: 0.0000 3.3520
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71137 : out of range
Severe: rms_fgdepar=13.3410, expected range: 0.0000 7.4780
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 01058 : out of range
Severe: avg_est_pge=0.8367, expected range: -0.5008 1.0604
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02888 : out of range
Severe: rms_fgdepar=7.7166, expected range: 0.0000 3.3521
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71849 : out of range
Severe: rms_fgdepar=7.6677, expected range: 0.0000 3.3264
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89869 : out of range
Severe: rms_fgdepar=14.0835, expected range: 0.0000 4.7306
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 06799 : out of range
Severe: rms_fgdepar=12.0159, expected range: 0.0000 5.9680
Severe: avg_est_pge=0.8301, expected range: -0.3828 0.7810
MANUAL LAND SYNOP 2M TEMPERATURE (K) 61080 : out of range
Severe: rms_fgdepar=7.8411, expected range: 0.0000 3.2897
MANUAL LAND SYNOP 2M TEMPERATURE (K) 23662 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=13.6883, expected range: -2.7444 5.4141
MANUAL LAND SYNOP 2M TEMPERATURE (K) 22213 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=8.7606, expected range: 0.0000 3.6942
MANUAL LAND SYNOP 2M TEMPERATURE (K) 01023 : out of range
3 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8245, expected range: -0.4682 0.9008
MANUAL LAND SYNOP 2M TEMPERATURE (K) 37897 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=12.7544, expected range: 0.0000 6.7740
Severe: avg_est_pge=0.8153, expected range: -0.2838 0.8374
MANUAL LAND SYNOP 2M TEMPERATURE (K) 23748 : out of range
Severe: rms_fgdepar=7.7939, expected range: 0.0000 3.7366
MANUAL LAND SYNOP 2M TEMPERATURE (K) 29209 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.2574, expected range: 0.0000 3.2384
MANUAL LAND SYNOP 2M TEMPERATURE (K) 67869 : out of range
Severe: rms_fgdepar=7.0469, expected range: 0.0000 2.2766
METAR 2M TEMPERATURE (K) OPKD : out of range
Severe: rms_fgdepar=7.9980, expected range: 0.1073 4.2385
METAR 2M TEMPERATURE (K) OIII : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=9.5575, expected range: 0.0000 3.7085
METAR 2M TEMPERATURE (K) USCM : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=8.6319, expected range: 0.0000 4.8337
METAR 2M TEMPERATURE (K) KRDR : out of range
Severe: rms_fgdepar=17.7406, expected range: 0.0000 4.9013
LAND TEMP 2M TEMPERATURE (K) 89664 : out of range
2 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8167, expected range: 0.1179 1.1097
BUFR LAND SYNOP 2M TEMPERATURE (K) 06750 : out of range
Severe: rms_fgdepar=8.3635, expected range: 0.0000 3.0283
BUFR LAND SYNOP 2M TEMPERATURE (K) 01023 : out of range
3 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8188, expected range: -0.4153 0.8292
BUFR LAND SYNOP 2M TEMPERATURE (K) 01183 : out of range
Severe: rms_fgdepar=8.1693, expected range: 0.0000 3.7385
BUFR LAND SYNOP 2M TEMPERATURE (K) 01064 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=15.6558, expected range: 0.0000 6.3953
Severe: avg_est_pge=0.8319, expected range: -0.2834 0.5825
BUFR LAND SYNOP 2M TEMPERATURE (K) 01084 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=11.7730, expected range: 0.0000 5.3885
BUFR LAND SYNOP 2M TEMPERATURE (K) 01058 : out of range
Severe: avg_est_pge=0.8366, expected range: -0.5042 1.0657
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 71492 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=26.7589, expected range: 0.0000 13.5177
MANUAL LAND SYNOP RH2M (%) 60490 : out of range
Severe: rms_fgdepar=36.2666, expected range: 0.0000 18.6184