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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2021-10-04 00:00

airs
AQUA AIRS RADIANCES CHANNEL 207 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.3162, expected range: -0.4163 -0.3779
AQUA AIRS RADIANCES CHANNEL 224 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.7171, expected range: -0.8491 -0.7797
AQUA AIRS RADIANCES CHANNEL 193 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.5919, expected range: -0.7960 -0.7612
AQUA AIRS RADIANCES CHANNEL 210 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.6134, expected range: -0.8239 -0.7243
AQUA AIRS RADIANCES CHANNEL 213 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.7772, expected range: -0.9626 -0.8800
AQUA AIRS RADIANCES CHANNEL 226 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.6259, expected range: -0.5250 -0.4133
atms
NOAA20 ATMS RADIANCES CHANNEL 13 : out of range
Severe: stdev_fgdepar=0.3890, expected range: 0.2787 0.3416
NOAA20 ATMS RADIANCES CHANNEL 12 : out of range
Considerable: stdev_fgdepar=0.2483, expected range: 0.1877 0.2231
gpsro
METOP-A GRAS SETTING HEIGHT 2-4 KM : out of range
18 times in the last 10 days for at least one item
Slight: avg_norm_fgdepar=-0.1337, expected range: 0.1219 0.1219
Radiosondes
HIGH RESO LAND TEMP Q (G/KG) 72426 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.7058, expected range: 0.0000 0.9247
HIGH RESO LAND TEMP Q (G/KG) 56187 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=4.2049, expected range: 0.0000 2.1348
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 26708 PRESSURE LAYER 300-60 : out of range
Severe: rms_fgdepar=15.2331, expected range: 0.5146 3.9056
Severe: avg_pge=0.8433, expected range: -0.1499 0.2192
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 24 : all data missing
Severe: obs_number=0, expected range: 92.26 170.03
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 96 : all data missing
Severe: obs_number=0, expected range: 38.68 299.28
All HIGH RESO LAND TEMP ALL LAYERS Indian Ocean Tropica : all data missing
Severe: obs_number=0, expected range: 38.68 299.28
HIGH RESO LAND TEMP TEMPERATURE (K) (4 pressure layers affected) : out of range
Considerable: obs_number=432.0000, expected range: 582.3852 841.6148
amdar
AMDAR WIND VECTOR DIFF (M/S) 00040369 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=22.3975, expected range: 0.0000 8.2910
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU1725 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=20.8005, expected range: -6.5537 22.4964
Severe: rms_fgdepar=21.7296, expected range: 0.0000 27.1029
Severe: avg_pge=0.8252, expected range: -0.6053 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU6637 PRESSURE LAYER 900-1200 (HPA : out of range
Severe: avg_fgdepar=23.4098, expected range: 0.1927 4.5728
Severe: rms_fgdepar=23.5436, expected range: 0.1018 5.1390
MODE-S WIND VECTOR DIFF (M/S) MDC8574 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=15.8356, expected range: 0.0000 7.6812
MODE-S WIND VECTOR DIFF (M/S) M8AFC8A PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=19.8553, expected range: 0.8791 5.4263
MODE-S WIND VECTOR DIFF (M/S) ME69E9D PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=16.5122, expected range: 0.3301 5.2333
MODE-S WIND VECTOR DIFF (M/S) M43276F (3 pressure layers affected) : out of range
Severe: rms_fgdepar=18.0592, expected range: 0.0000 5.8573
MODE-S WIND VECTOR DIFF (M/S) M5B2FB0 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=15.4045, expected range: 0.0000 6.3804
MODE-S WIND VECTOR DIFF (M/S) M356C11 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=16.3502, expected range: 0.0000 8.9690
MODE-S WIND VECTOR DIFF (M/S) M7A7131 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=16.6986, expected range: 0.4977 4.2255
MODE-S WIND VECTOR DIFF (M/S) MD43041 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=20.4715, expected range: 0.0000 6.7058
MODE-S WIND VECTOR DIFF (M/S) M3BA664 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=19.2177, expected range: 0.0000 5.9489
MODE-S WIND VECTOR DIFF (M/S) MCD6F46 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=20.1348, expected range: 0.0000 7.7714
MODE-S WIND VECTOR DIFF (M/S) M642DE9 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=17.1544, expected range: 0.8284 4.0828
MODE-S WIND VECTOR DIFF (M/S) MCC019A (2 pressure layers affected) : out of range
Severe: avg_fgdepar=22.5837, expected range: -2.3716 7.8984
Severe: rms_fgdepar=22.9554, expected range: 0.0000 8.6467
MODE-S WIND VECTOR DIFF (M/S) M43276F (2 pressure layers affected) : out of range
Severe: avg_fgdepar=23.0095, expected range: -1.1060 5.8263
MODE-S WIND VECTOR DIFF (M/S) MC8B030 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=20.2862, expected range: 0.0603 5.5248
MODE-S WIND VECTOR DIFF (M/S) MD43041 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=20.3817, expected range: -0.5779 4.5620
MODE-S WIND VECTOR DIFF (M/S) M3F64F1 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=17.4136, expected range: 0.5448 4.9449
MODE-S WIND VECTOR DIFF (M/S) M3994E4 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=20.4367, expected range: 0.0000 5.5733
MODE-S WIND VECTOR DIFF (M/S) M95B887 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=22.3025, expected range: 0.7787 3.9313
Severe: rms_fgdepar=22.3545, expected range: 0.9061 4.2921
MODE-S WIND VECTOR DIFF (M/S) M164759 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=15.7676, expected range: 0.0000 5.7260
MODE-S WIND VECTOR DIFF (M/S) M947F0A PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=18.7354, expected range: 0.0000 5.4808
MODE-S WIND VECTOR DIFF (M/S) M25A94C PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=16.1147, expected range: 0.0000 6.4271
MODE-S WIND VECTOR DIFF (M/S) M7AD59C PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=17.4688, expected range: 0.1624 4.9130
MODE-S WIND VECTOR DIFF (M/S) M8DE41D PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=23.8092, expected range: -2.2917 7.5526
Severe: rms_fgdepar=23.8418, expected range: 0.0000 7.9395
MODE-S WIND VECTOR DIFF (M/S) MFE449D PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=16.7322, expected range: 0.0000 5.4983
MODE-S WIND VECTOR DIFF (M/S) M5E64AD PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=21.4496, expected range: -2.1669 7.0734
Severe: rms_fgdepar=22.2359, expected range: 0.0000 7.8500
MODE-S WIND VECTOR DIFF (M/S) M837CFD PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=22.3442, expected range: 0.4757 5.2461
Severe: rms_fgdepar=22.3953, expected range: 0.7381 5.3837
MODE-S WIND VECTOR DIFF (M/S) M7EE73F PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=15.3314, expected range: 0.0000 6.2702
MODE-S WIND VECTOR DIFF (M/S) MD690BF PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=15.3305, expected range: 0.0000 5.1335
ADS-C WIND VECTOR DIFF (M/S) SRAHMGBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.1990, expected range: 0.0000 9.7007
ADS-C WIND VECTOR DIFF (M/S) 1DEIHJBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.3427, expected range: 0.0000 5.1381
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 12544 PRESSURE LAYER 600-900 : out of range
Severe: avg_pge=0.8053, expected range: -0.6403 0.7500
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 02925 PRESSURE LAYER 900-1200 : out of range
Severe: avg_fgdepar=21.0587, expected range: -4.4483 10.7826
Severe: rms_fgdepar=21.4025, expected range: 0.0000 14.4181
Severe: avg_pge=0.9233, expected range: -0.6922 0.7500
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 48914 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_pge=0.8236, expected range: -0.5262 0.7500
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 17847 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8326, expected range: -1.7209 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 86648 : out of range
37 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-702.0156, expected range: -2253.5279 1235.4712
Severely_persistent: rms_fgdepar=1116.2173, expected range: 0.0000 1616.2546
Severely_persistent: avg_pge=0.9494, expected range: 0.3840 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=1696.0000, expected range: 1977.8056 1991.7499
Severe: obs_number=1634.0000, expected range: 1914.5362 1932.2138
MANUAL LAND SYNOP RH2M (%) 41715 : out of range
Severe: avg_pge=0.9994, expected range: -0.0657 0.1155
MANUAL LAND SYNOP RH2M (%) 61085 : out of range
Severe: avg_fgdepar=50.4716, expected range: -29.7503 57.4673
Severe: rms_fgdepar=50.4716, expected range: 0.0000 57.4673
Severe: avg_pge=0.9998, expected range: -0.6026 0.7111
MANUAL LAND SYNOP RH2M (%) 42837 : out of range
Severe: rms_fgdepar=35.9608, expected range: 0.0000 19.6128
Severe: avg_pge=0.8548, expected range: 0.0000 0.0068
MANUAL LAND SYNOP RH2M (%) 76658 : out of range
Severe: avg_pge=0.9907, expected range: -0.2270 0.3159
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 89592 : out of range
Severe: rms_fgdepar=670.3417, expected range: 0.0000 210.1369
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83925 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8174, expected range: -0.9355 0.7500
BUFR LAND SYNOP RH2M (%) 06747 : out of range
Severe: avg_fgdepar=-50.6895, expected range: -64.5978 24.6099
Severe: rms_fgdepar=51.1901, expected range: 0.0000 61.7561
BUFR LAND SYNOP RH2M (%) 07747 : out of range
Severe: rms_fgdepar=30.9310, expected range: 0.0000 12.4759
BUFR LAND SYNOP RH2M (%) 15118 : out of range
Severe: avg_fgdepar=57.2031, expected range: -30.1794 51.7295
Severe: rms_fgdepar=57.3586, expected range: 0.0000 55.3914
Severe: avg_pge=0.8658, expected range: -0.6655 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
Considerable: obs_number=370.0000, expected range: 294.5223 327.2277
Considerable: obs_number=132.0000, expected range: 61.1464 96.8536
ship
ABBREVIATED SHIP WIND VECTOR DIFF (M/S) WTEK : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8987, expected range: -0.0353 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6TQ6 : out of range
23 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-680.8747, expected range: -1365.0732 131.1197
Severely_persistent: rms_fgdepar=680.8747, expected range: 226.2964 1126.1260
BUFR SHIP SYNOP SURFACE PRESSURE (PA) D5ZQ6 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=562.0489, expected range: -1447.8411 1818.8641
Severely_persistent: rms_fgdepar=562.0489, expected range: -1244.2158 1698.7336
Severely_persistent: avg_pge=0.8110, expected range: -1.7037 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) D5LJ2 : out of range
Severe: avg_fgdepar=819.5397, expected range: -248.2468 100.3042
Severe: rms_fgdepar=819.5397, expected range: 0.0000 237.9957
Severe: avg_pge=0.8783, expected range: -0.4606 0.5975
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V8197 : out of range
Severe: avg_fgdepar=515.7555, expected range: -174.0325 337.5396
Severe: rms_fgdepar=515.7592, expected range: 0.0000 461.8536
Severe: avg_pge=0.8039, expected range: -0.9854 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) NWS8649 : out of range
Severe: rms_fgdepar=405.5164, expected range: 0.0000 154.8775
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 6401857 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=516.3784, expected range: 0.0000 1078.1609
DRIFTING BUOYS SURFACE PRESSURE (PA) 2300593 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8067, expected range: 0.5047 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6203644 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-668.5764, expected range: -751.7763 804.7358
Severe: rms_fgdepar=671.1210, expected range: -632.4242 799.4693
Severe: avg_pge=0.9152, expected range: -1.0256 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1501746 : out of range
Severe: avg_fgdepar=-523.6777, expected range: -441.2458 554.3999
Severe: rms_fgdepar=529.5450, expected range: 0.0000 775.9793
Severe: avg_pge=0.8972, expected range: -1.1946 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1701617 : out of range
Severe: rms_fgdepar=464.4034, expected range: 0.0000 117.6955
DRIFTING BUOYS SURFACE PRESSURE (PA) 4400857 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=531.0992, expected range: -491.3388 621.7028
DRIFTING BUOYS SURFACE PRESSURE (PA) 1301608 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-540.5041, expected range: -118.8229 19.5185
Severe: rms_fgdepar=546.3955, expected range: 0.0000 124.0052
Severe: avg_pge=0.8961, expected range: -0.1924 0.2822
metar
METAR SURFACE PRESSURE (PA) SLRI : out of range
Severe: rms_fgdepar=686.2496, expected range: 0.0000 329.2227
METAR SURFACE PRESSURE (PA) CYLT : out of range
Severe: avg_fgdepar=-728.5580, expected range: -177.3545 124.8377
Severe: rms_fgdepar=728.6990, expected range: 0.0000 129.5938
Severe: avg_pge=0.8608, expected range: 0.0000 0.0000
snow
BUFR LAND SYNOP SNOW (CM) _MI10DB0 : out of range
36 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=59.1957, expected range: 48.8814 61.6892
BUFR LAND SYNOP SNOW (CM) _MI10DB0 : out of range
36 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=59.4037, expected range: 49.9069 62.0751
BUFR LAND SYNOP SNOW (CM) _MI1B25E : out of range
36 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=52.3767, expected range: 51.3998 61.6130
BUFR LAND SYNOP SNOW (CM) _MI1B25E : out of range
36 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=52.6952, expected range: 51.9427 61.4738
BUFR LAND SYNOP SNOW (CM) _MI16E6F : out of range
36 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=56.5385, expected range: 51.7634 71.5386
BUFR LAND SYNOP SNOW (CM) _MI16E6F : out of range
36 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=57.9489, expected range: 52.8855 71.2359
MANUAL LAND SYNOP SNOW (CM) 30815 : out of range
Severe: avg_fgdepar=65.7115, expected range: -9.1858 68.1129
Severe: rms_fgdepar=65.7115, expected range: 0.0000 68.1129
BUFR LAND SYNOP SNOW (CM) 30815 : out of range
Severe: avg_fgdepar=65.8917, expected range: -9.1128 67.9926
Severe: rms_fgdepar=65.8917, expected range: 0.0000 67.9926
BUFR LAND SYNOP SNOW (CM) 08919 : out of range
Severe: avg_fgdepar=62.2246, expected range: -2.3172 3.2221
Severe: rms_fgdepar=62.2246, expected range: 0.0000 2.7154
t2m
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.7709, expected range: -22.5536 -9.0741
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=13.7713, expected range: 9.0982 22.5689
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
30 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-14.4616, expected range: -18.9973 -7.8098
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
30 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=14.4622, expected range: 7.7855 19.1566
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 68268 : out of range
Severe: avg_fgdepar=-12.8777, expected range: -8.9746 5.1866
Severe: rms_fgdepar=12.8777, expected range: 0.0117 4.6780
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=1554.0000, expected range: 1803.2395 1835.9827
LAND TEMP 2M TEMPERATURE (K) 89571 : out of range
Severe: avg_fgdepar=17.2141, expected range: -4.1412 4.5582
Severe: rms_fgdepar=17.2141, expected range: 0.0000 3.9020
BUFR LAND SYNOP 2M TEMPERATURE (K) 15118 : out of range
Severe: rms_fgdepar=11.0915, expected range: 0.0000 6.1645
BUFR LAND SYNOP 2M TEMPERATURE (K) 68268 : out of range
Severe: avg_fgdepar=-12.9086, expected range: -9.2094 5.2560
Severe: rms_fgdepar=12.9086, expected range: 0.0000 4.9330
rh2m
MANUAL LAND SYNOP RH2M (%) 40811 : out of range
Severe: rms_fgdepar=30.7597, expected range: 0.0000 16.9905
AUTOMATIC LAND SYNOP RH2M (%) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=1551.0000, expected range: 1789.8770 1848.2341
MANUAL LAND SYNOP RH2M (%) : out of range
Considerable: obs_number=196.0000, expected range: 123.5642 141.6123