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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2021-02-24 00:00

amsua
NOAA-18 AMSUA RADIANCES CHANNEL 5 : out of range
Considerable: avg_biascorr=0.2956, expected range: 0.3378 0.3948
NOAA-19 AMSUA RADIANCES (8 channels affected) : out of range
Considerable: obs_number=4010.0000, expected range: 4592.7052 6174.9198
mhs
NOAA-19 MHS ALLSKY RADIANCES CHANNEL 5 : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=8210.0000, expected range: 9616.4455 11655.0545
NOAA-19 MHS ALLSKY RADIANCES CHANNEL 4 : out of range
Considerable: obs_number=8672.0000, expected range: 10112.7074 12369.5426
Radiosondes
LAND TEMP Q (G/KG) 91334 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.3743, expected range: 0.0000 1.8360
LAND TEMP Q (G/KG) 43150 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=7.6838, expected range: 0.0000 5.2434
Severe: avg_fgdepar=7.6838, expected range: -3.5395 5.3279
LAND TEMP TEMPERATURE (K) 42379 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=9.4099, expected range: 0.6198 1.6759
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 76 : all data missing
Severe: obs_number=0, expected range: 57.42 253.00
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 52818 (2 pressure layers af : out of range
Severe: rms_fgdepar=35.0690, expected range: 0.2247 4.9811
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 52818 PRESSURE LAYER 0-300 : out of range
Severe: avg_fgdepar=29.4298, expected range: -0.0719 4.7170
HIGH RESO SEA TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : missing
Severe: obs_number=0.0000, expected range: 35.0022 283.0398
LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: obs_number=190.0000, expected range: 17.1687 123.9943
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
Considerable: obs_number=65.0000, expected range: 80.1065 86.1157
airep
AIREP WIND VECTOR DIFF (M/S) BAW34N PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=18.8833, expected range: 0.0000 9.0617
AIREP WIND VECTOR DIFF (M/S) BAW226 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=18.2641, expected range: 0.0000 9.4147
AIREP WIND VECTOR DIFF (M/S) ETH574 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.5598, expected range: 1.5138 9.5551
AIREP WIND VECTOR DIFF (M/S) UAL14 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.4100, expected range: 0.0000 10.4172
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 07182 PRESSURE LAYER 600-900 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8194, expected range: -1.3282 0.7500
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 10103 PRESSURE LAYER 600-900 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9238, expected range: -0.9503 0.7500
Severe: rms_fgdepar=20.6347, expected range: 0.0000 11.4189
Severe: avg_fgdepar=20.6347, expected range: -1.5927 9.4604
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 06234 (2 pressure layers affe : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8659, expected range: -1.3888 0.7500
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 600-900 (HPA) : out of range
Considerable: obs_number=1079.0000, expected range: 1275.5639 1356.9361
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 97008 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=19.6518, expected range: 0.7365 10.0023
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 18133 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8290, expected range: -0.5587 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 18162 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=798.9266, expected range: 565.7763 871.4128
Severely_persistent: avg_fgdepar=797.6986, expected range: 565.3190 870.8490
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 17891 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8140, expected range: 0.7352 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 18221 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8346, expected range: 0.6366 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 18210 : out of range
23 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=552.7866, expected range: 408.7139 582.2895
Severely_persistent: avg_fgdepar=552.5658, expected range: 407.5393 582.4515
MANUAL LAND SYNOP RH2M (%) 64706 : out of range
Severe: avg_pge=0.8537, expected range: -1.4404 0.7500
MANUAL LAND SYNOP RH2M (%) 38545 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9322, expected range: -1.4065 0.7500
Severe: rms_fgdepar=61.3407, expected range: 0.0000 52.0109
Severe: avg_fgdepar=61.3407, expected range: -16.3452 42.0317
MANUAL LAND SYNOP RH2M (%) 68424 : out of range
Severe: avg_pge=0.9879, expected range: -0.0531 0.0685
Severe: rms_fgdepar=50.5246, expected range: -25.4399 37.4348
Severe: avg_fgdepar=-50.5246, expected range: -27.3179 36.0398
MANUAL LAND SYNOP RH2M (%) 42662 : out of range
Severe: avg_pge=0.8096, expected range: -0.8717 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40988 : out of range
Severe: avg_pge=0.8719, expected range: -1.2892 0.7500
Severe: rms_fgdepar=502.2017, expected range: 0.0000 671.3037
Severe: avg_fgdepar=502.2017, expected range: -746.0605 863.0076
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 28987 : out of range
Severe: rms_fgdepar=358.1664, expected range: 0.0000 72.7638
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 35357 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8613, expected range: -0.5893 0.7500
Severe: rms_fgdepar=468.4933, expected range: 0.0000 205.0632
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 41696 : out of range
Severe: avg_pge=0.8238, expected range: -0.8018 0.7500
Severe: rms_fgdepar=446.1512, expected range: 0.0000 284.3028
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 35705 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=342.7335, expected range: 0.0000 195.3392
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 63881 : out of range
Severe: avg_pge=0.9274, expected range: -0.1842 0.2099
Severe: rms_fgdepar=1083.7602, expected range: 0.0000 149.7841
Severe: avg_fgdepar=1083.7567, expected range: -97.7827 157.7260
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 65510 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8037, expected range: 0.7171 0.7500
BUFR LAND SYNOP RH2M (%) 11659 : out of range
Severe: rms_fgdepar=31.7170, expected range: 0.0000 17.0567
BUFR LAND SYNOP RH2M (%) 06749 : out of range
Severe: avg_pge=0.9930, expected range: -0.9049 0.7500
Severe: rms_fgdepar=56.5585, expected range: 0.0000 56.6851
Severe: avg_fgdepar=-56.5177, expected range: -54.5337 6.8110
BUFR LAND SYNOP RH2M (%) 06747 : out of range
Severe: avg_pge=0.9904, expected range: -1.0467 0.7500
Severe: rms_fgdepar=55.7963, expected range: 0.0000 81.6238
Severe: avg_fgdepar=-55.7652, expected range: -81.0300 24.2297
BUFR LAND SYNOP RH2M (%) 14307 : out of range
Severe: avg_pge=0.9548, expected range: 0.0009 0.0049
Severe: rms_fgdepar=47.0042, expected range: 0.0000 15.0592
BUFR LAND SYNOP RH2M (%) 94422 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=1.0000, expected range: -1.5726 0.7500
Severe: rms_fgdepar=64.5097, expected range: -88.4453 131.7874
Severe: avg_fgdepar=64.5097, expected range: -103.5299 140.9353
BUFR LAND SYNOP RH2M (%) 40360 : out of range
Severe: rms_fgdepar=41.5588, expected range: 0.0000 18.1085
BUFR LAND SYNOP SURFACE PRESSURE (PA) 86846 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=796.5049, expected range: 659.5163 888.9962
Severe: avg_fgdepar=796.2049, expected range: 659.5015 888.9159
BUFR LAND SYNOP SURFACE PRESSURE (PA) 13464 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8539, expected range: -0.5771 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 33633 : out of range
Severe: avg_pge=0.8038, expected range: -1.2349 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 60033 : out of range
Severe: rms_fgdepar=476.4594, expected range: 0.0000 97.3468
BUFR LAND SYNOP SURFACE PRESSURE (PA) 93792 : out of range
Severe: avg_pge=0.8303, expected range: -0.6439 0.7500
Severe: rms_fgdepar=332.1568, expected range: 0.0000 138.0659
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94640 : out of range
Severe: avg_pge=0.8932, expected range: 0.0000 0.0000
Severe: rms_fgdepar=516.5656, expected range: 0.0000 92.7586
Severe: avg_fgdepar=-516.5656, expected range: -120.0579 98.2602
BUFR LAND SYNOP SURFACE PRESSURE (PA) 16400 : out of range
Severe: rms_fgdepar=464.2238, expected range: 0.0000 156.6378
BUFR LAND SYNOP SURFACE PRESSURE (PA) 22100 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=515.5593, expected range: 0.0000 254.1517
BUFR LAND SYNOP RH2M (%) : out of range
Considerable: obs_number=50.0000, expected range: 54.1667 59.1667
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
Considerable: obs_number=182.0000, expected range: 199.2024 207.0198
ship
AUTOMATIC SHIP WIND VECTOR DIFF (M/S) 44150 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8078, expected range: 0.3051 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) ONFZ : out of range
Severe: avg_pge=0.8546, expected range: -1.1581 0.7500
Severe: rms_fgdepar=627.7472, expected range: 0.0000 478.8877
Severe: avg_fgdepar=-627.7472, expected range: -618.7946 511.3144
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3EUS : out of range
Severe: rms_fgdepar=533.0053, expected range: 0.0000 282.6127
Severe: avg_fgdepar=533.0053, expected range: -254.2404 253.8025
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WSAF : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=1445.9823, expected range: 0.8779 1753.1073
Severe: avg_fgdepar=-1445.9823, expected range: -4521.8608 4266.0471
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3FCD9 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8098, expected range: 0.4172 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRNL8 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8220, expected range: -0.6678 0.7500
Severe: rms_fgdepar=541.9416, expected range: 0.0000 852.7679
Severe: avg_fgdepar=-541.9416, expected range: -674.5176 666.9830
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRRP7 : out of range
Severe: avg_pge=0.8461, expected range: -0.6992 0.7500
Severe: rms_fgdepar=656.1961, expected range: 0.0000 623.8322
Severe: avg_fgdepar=-656.1961, expected range: -591.7454 191.6995
BUFR SHIP SYNOP SURFACE PRESSURE (PA) AMOUK64 : out of range
Severe: avg_pge=0.8133, expected range: -0.7375 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V8843 : out of range
Severe: avg_pge=0.8587, expected range: -0.1582 0.1808
Severe: rms_fgdepar=788.4186, expected range: 0.0000 122.7124
Severe: avg_fgdepar=788.4186, expected range: -153.5355 162.3960
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V9631 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=634.5628, expected range: 0.0000 462.2850
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VRFE9 : out of range
Severe: avg_pge=0.9059, expected range: -0.5823 0.7500
Severe: rms_fgdepar=18.8507, expected range: 0.0000 12.2925
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 4401577 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8788, expected range: -1.5527 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4601840 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9094, expected range: -0.4234 0.7500
Severely_persistent: rms_fgdepar=565.1666, expected range: 0.0000 800.4629
Severely_persistent: avg_fgdepar=-553.5825, expected range: -1065.2752 586.6203
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101743 : out of range
Severe: rms_fgdepar=322.1490, expected range: 0.0000 69.4417
metar
METAR SURFACE PRESSURE (PA) LICU : out of range
Severe: rms_fgdepar=391.6924, expected range: 0.0000 111.4509
snow
MANUAL LAND SYNOP SNOW (CM) 20107 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=95.9785, expected range: 85.0992 100.4059
Severely_persistent: avg_fgdepar=95.9785, expected range: 85.0992 100.4059
MANUAL LAND SYNOP SNOW (CM) 30815 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=65.4878, expected range: 54.3766 69.9049
Severely_persistent: avg_fgdepar=65.4878, expected range: 54.3766 69.9049
ROCOB TEMP SNOW (CM) 63309115 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=51.6897, expected range: 44.1392 57.0038
Severely_persistent: avg_fgdepar=-51.6897, expected range: -57.0038 -44.1392
BUFR LAND SYNOP SNOW (CM) 20107 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=93.8346, expected range: 82.9049 97.8293
Severely_persistent: avg_fgdepar=93.8346, expected range: 82.9049 97.8293
BUFR LAND SYNOP SNOW (CM) 01036 : out of range
34 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=112.6647, expected range: 45.0627 144.2176
Severely_persistent: avg_fgdepar=-112.6623, expected range: -144.1939 -45.0049
BUFR LAND SYNOP SNOW (CM) 30815 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=65.7829, expected range: 54.5653 70.2204
Severely_persistent: avg_fgdepar=65.7829, expected range: 54.5653 70.2204
BUFR LAND SYNOP SNOW (CM) 01091 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=99.4455, expected range: 61.3966 113.2223
Severely_persistent: avg_fgdepar=-99.4455, expected range: -113.2158 -61.3913
BUFR LAND SYNOP SNOW (CM) 01480 : out of range
28 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=64.2332, expected range: 48.5019 74.4401
Severely_persistent: avg_fgdepar=-64.2302, expected range: -94.1066 -24.6006
AUTOMATIC LAND SYNOP SNOW (CM) 28678 : out of range
Severe: rms_fgdepar=21.0696, expected range: 0.0000 8.6336
MANUAL LAND SYNOP SNOW (CM) 28948 : out of range
Severe: rms_fgdepar=22.3408, expected range: 0.0000 6.6996
MANUAL LAND SYNOP SNOW (CM) 28748 : out of range
Severe: rms_fgdepar=19.8127, expected range: 1.3685 7.9217
MANUAL LAND SYNOP SNOW (CM) 38338 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=18.0337, expected range: 0.0000 9.4147
MANUAL LAND SYNOP SNOW (CM) 28916 : out of range
Severe: rms_fgdepar=16.0425, expected range: 0.1794 3.4269
MANUAL LAND SYNOP SNOW (CM) 28645 : out of range
Severe: rms_fgdepar=16.0763, expected range: 0.0000 3.9224
MANUAL LAND SYNOP SNOW (CM) 28873 : out of range
Severe: rms_fgdepar=21.5898, expected range: 5.6684 8.8062
MANUAL LAND SYNOP SNOW (CM) 28843 : out of range
Severe: rms_fgdepar=22.9429, expected range: 0.0000 2.8550
MANUAL LAND SYNOP SNOW (CM) 28862 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=70.1133, expected range: 0.0000 22.2765
Severe: avg_fgdepar=70.1133, expected range: -16.4706 29.3308
ROCOB TEMP SNOW (CM) 64301617 : out of range
Severe: rms_fgdepar=15.7805, expected range: 1.5757 8.0610
BUFR LAND SYNOP SNOW (CM) 28948 : out of range
Severe: rms_fgdepar=22.3408, expected range: 0.0000 6.6996
BUFR LAND SYNOP SNOW (CM) 28645 : out of range
Severe: rms_fgdepar=16.0763, expected range: 0.0000 3.9224
BUFR LAND SYNOP SNOW (CM) 28873 : out of range
Severe: rms_fgdepar=21.5898, expected range: 5.6684 8.8062
BUFR LAND SYNOP SNOW (CM) 28843 : out of range
Severe: rms_fgdepar=22.9429, expected range: 0.0000 2.8550
BUFR LAND SYNOP SNOW (CM) 28862 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=70.1133, expected range: 0.0000 22.2765
Severe: avg_fgdepar=70.1133, expected range: -16.4706 29.3308
t2m
BUFR LAND SYNOP 2M TEMPERATURE (K) 27415 : out of range
26 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=17.6977, expected range: 8.6280 21.4486
Severely_persistent: avg_fgdepar=17.6799, expected range: 8.5888 21.4258
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 35092 : out of range
Severe: rms_fgdepar=10.9299, expected range: 0.0000 3.6680
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 16710 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.2843, expected range: 0.1244 4.6903
MANUAL LAND SYNOP 2M TEMPERATURE (K) 13459 : out of range
Severe: rms_fgdepar=10.6540, expected range: 0.0000 4.7465
MANUAL LAND SYNOP 2M TEMPERATURE (K) 42767 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=12.2688, expected range: -6.9293 12.8931
Severe: avg_fgdepar=-12.2688, expected range: -12.9767 7.1050
MANUAL LAND SYNOP 2M TEMPERATURE (K) 23606 : out of range
Severe: rms_fgdepar=10.9690, expected range: 0.0000 4.6763
MANUAL LAND SYNOP 2M TEMPERATURE (K) 48810 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=12.4106, expected range: 4.4544 14.2475
Severe: avg_fgdepar=-12.4106, expected range: -14.2475 -4.4526
METAR 2M TEMPERATURE (K) LTCB : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=16.9272, expected range: 2.9509 17.8747
Severe: avg_fgdepar=16.9038, expected range: 2.9212 17.7711
BUFR LAND SYNOP 2M TEMPERATURE (K) 42767 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=12.3189, expected range: -6.9174 12.9473
Severe: avg_fgdepar=-12.3189, expected range: -13.0129 7.0528
BUFR LAND SYNOP 2M TEMPERATURE (K) 48810 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=12.4606, expected range: 4.5044 14.2975
Severe: avg_fgdepar=-12.4606, expected range: -14.2975 -4.5026
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=6813.0000, expected range: 7908.3606 8430.5144