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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2021-05-17 12:00

iasi
METOP-A IASI RADIANCES CHANNEL 262 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.3075, expected range: -0.2879 -0.2638
METOP-A IASI RADIANCES CHANNEL 3448 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1093, expected range: 0.1581 0.4874
METOP-C IASI RADIANCES CHANNEL 3448 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0843, expected range: 0.2005 0.5290
mwhs2
All FY-3C MWHS2 ALLSKY ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 0.00 42342.77
atms
NPP ATMS RADIANCES (10 channels affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=19117.0000, expected range: 20974.1819 24367.7005
NOAA20 ATMS RADIANCES (7 channels affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=2878.0000, expected range: 3226.7586 3548.3002
Atmospheric Motion Vector
All AQUA MODIS CLEAR WV ALL LAYERS Global : all data missing
Severe: obs_number=0, expected range: 135.32 878.58
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 6390-6391 (HPA) : out of range
4 times in the last 10 days for at least one item
Considerable: stdev_fgdepar=4.9412, expected range: 3.6389 4.4850
METOP-B GOME-2 OZONE, TOP PRESSURE LAYER 12-13 (HPA) : out of range
1 times in the last 10 days for at least one item
Slight: stdev_fgdepar=6.4508, expected range: 5.4804 6.2322
Radiosondes
LAND TEMP Q (G/KG) 61442 PRESSURE LAYER 900-1200 (HPA) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=6.2777, expected range: 0.0000 11.6238
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 24 : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 339.22
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=3.2717, expected range: 0.9883 2.0562
LAND TEMP TEMPERATURE (K) 24726 (2 pressure layers affected) : out of range
Severe: avg_fgdepar=-13.0206, expected range: -0.3717 2.7269
LAND TEMP TEMPERATURE (K) 24726 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=13.1735, expected range: 0.1092 2.7283
LAND TEMP TEMPERATURE (K) 24726 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_pge=0.9366, expected range: -0.2967 0.7500
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=6.0855, expected range: 0.3223 2.2237
HIGH RESO LAND TEMP TEMPERATURE (K) 71081 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=8.5805, expected range: 0.0000 1.9386
HIGH RESO LAND TEMP TEMPERATURE (K) 72786 PRESSURE LAYER 900-1200 (HPA : out of range
Severe: rms_fgdepar=7.5308, expected range: 0.0000 5.3715
HIGH RESO LAND TEMP TEMPERATURE (K) 72786 PRESSURE LAYER 900-1200 (HPA : out of range
Severe: avg_pge=0.8384, expected range: -0.7695 0.7500
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=3.3248, expected range: 0.5561 1.4379
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 72451 PRESSURE LAYER 900-12 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=15.0910, expected range: 0.0000 7.7588
HIGH RESO LAND TEMP Q (G/KG) 72451 PRESSURE LAYER 600-900 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=2.3231, expected range: 0.0601 0.8922
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=557.0000, expected range: 641.1195 670.8805
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) V31IR3JA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.8843, expected range: 0.0000 8.5842
WIGOS AMDAR WIND VECTOR DIFF (M/S) CUF0XHZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.3591, expected range: 0.0000 7.7223
WIGOS AMDAR WIND VECTOR DIFF (M/S) SAEEOFRA PRESSURE LAYER 900-1200 (H : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=25.9122, expected range: -0.1785 4.5469
WIGOS AMDAR WIND VECTOR DIFF (M/S) SAEEOFRA PRESSURE LAYER 900-1200 (H : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=27.9951, expected range: 0.0000 5.5262
WIGOS AMDAR Q (G/KG) VXZUOFRA PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.9477, expected range: 0.0000 1.9168
WIGOS AMDAR Q (G/KG) DVPUOFZA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.8328, expected range: -0.4786 0.6612
synop
BUFR LAND SYNOP RH2M (%) 86850 : out of range
23 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-50.5520, expected range: -103.5529 -10.1805
BUFR LAND SYNOP RH2M (%) 86850 : out of range
23 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=51.4239, expected range: 14.0799 100.7909
BUFR LAND SYNOP RH2M (%) 86850 : out of range
23 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9884, expected range: 0.0876 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 13455 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8554, expected range: 0.7253 0.7500
MANUAL LAND SYNOP RH2M (%) 42830 : out of range
Severe: rms_fgdepar=33.1304, expected range: 0.0000 17.6917
MANUAL LAND SYNOP RH2M (%) 76040 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9071, expected range: -0.5463 0.7500
MANUAL LAND SYNOP RH2M (%) 42792 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9447, expected range: -1.6814 0.7500
MANUAL LAND SYNOP RH2M (%) 42963 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9963, expected range: -1.8329 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40001 : out of range
Severe: rms_fgdepar=529.1707, expected range: 0.0000 423.9325
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42661 : out of range
Severe: rms_fgdepar=386.8329, expected range: 0.0000 207.3063
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42661 : out of range
Severe: avg_pge=0.8640, expected range: -0.6364 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42463 : out of range
Severe: rms_fgdepar=669.8147, expected range: 0.0000 233.7770
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42914 : out of range
Severe: rms_fgdepar=456.9950, expected range: 0.0000 142.3012
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 44317 : out of range
Severe: avg_fgdepar=633.9079, expected range: -176.1365 165.2516
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 44317 : out of range
Severe: rms_fgdepar=774.6137, expected range: 0.0000 184.2379
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42577 : out of range
Severe: avg_pge=0.8117, expected range: -0.9143 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42909 : out of range
Severe: rms_fgdepar=470.7692, expected range: 0.0000 192.7746
BUFR LAND SYNOP RH2M (%) 72265 : out of range
Severe: rms_fgdepar=34.3506, expected range: 0.0000 15.5294
BUFR LAND SYNOP RH2M (%) 61296 : out of range
Severe: rms_fgdepar=49.8289, expected range: 0.0000 36.3472
BUFR LAND SYNOP RH2M (%) 61296 : out of range
Severe: avg_pge=0.9979, expected range: -0.4216 0.5447
BUFR LAND SYNOP RH2M (%) 24538 : out of range
Severe: rms_fgdepar=40.2916, expected range: 0.0000 22.0101
BUFR LAND SYNOP RH2M (%) 28978 : out of range
Severe: rms_fgdepar=35.0939, expected range: 0.0000 17.4678
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRTX7 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-565.9999, expected range: -985.2826 -208.9246
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRTX7 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=565.9999, expected range: 209.4504 987.9083
BUFR SHIP SYNOP SURFACE PRESSURE (PA) ZCDP8 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=701.2196, expected range: -505.5423 1574.7702
BUFR SHIP SYNOP SURFACE PRESSURE (PA) ZCDP8 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=701.2196, expected range: 0.0000 1582.5696
BUFR SHIP SYNOP SURFACE PRESSURE (PA) ZCDP8 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8493, expected range: 0.0503 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V9289 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=552.6382, expected range: -454.5126 1018.7081
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V9289 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=552.6382, expected range: 0.0000 1012.9747
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V9289 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8040, expected range: -0.5759 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) JMJRCES : out of range
51 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8993, expected range: -1.3494 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VRTX7 : out of range
Severe: rms_fgdepar=17.5425, expected range: 0.0000 8.7313
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VRTX7 : out of range
Severe: avg_pge=0.8927, expected range: -0.9001 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) WADN : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8930, expected range: -0.6109 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) ZCEF6 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=430.5803, expected range: 0.0000 147.1677
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 4601834 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8369, expected range: 0.4420 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5501670 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=709.2013, expected range: -315.1163 257.3382
DRIFTING BUOYS SURFACE PRESSURE (PA) 5501670 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=712.9960, expected range: 0.0000 471.8979
DRIFTING BUOYS SURFACE PRESSURE (PA) 5501670 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8910, expected range: -0.8221 0.7500
metar
METAR SURFACE PRESSURE (PA) FQNC : out of range
Severe: rms_fgdepar=452.8496, expected range: 0.0000 166.1203
METAR SURFACE PRESSURE (PA) FQVL : out of range
Severe: rms_fgdepar=402.4660, expected range: 0.0000 122.3671
snow
AUTOMATIC LAND SYNOP SNOW (CM) 71356 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-51.9816, expected range: -69.6193 -42.6331
AUTOMATIC LAND SYNOP SNOW (CM) 71356 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=51.9816, expected range: 42.6331 69.6193
t2m
METAR 2M TEMPERATURE (K) UGMS : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=16.7322, expected range: 5.8343 18.6171
METAR 2M TEMPERATURE (K) UGMS : out of range
14 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=16.9912, expected range: 6.3167 18.5857
BUFR LAND SYNOP 2M TEMPERATURE (K) 89504 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=13.1424, expected range: -1.0929 21.1699
BUFR LAND SYNOP 2M TEMPERATURE (K) 89504 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=13.2006, expected range: 0.0000 20.9713
BUFR LAND SYNOP 2M TEMPERATURE (K) 89734 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-12.4321, expected range: -17.3832 2.4095
BUFR LAND SYNOP 2M TEMPERATURE (K) 89734 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=12.5065, expected range: 0.0000 17.0575
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-16.3301, expected range: -8.1139 0.5538
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=16.4861, expected range: 0.0000 8.2772
MANUAL LAND SYNOP 2M TEMPERATURE (K) 63474 : out of range
Severe: rms_fgdepar=11.3485, expected range: 0.0000 4.4593
METAR 2M TEMPERATURE (K) SBAF : out of range
Severe: rms_fgdepar=10.3443, expected range: 0.0769 4.6244
METAR 2M TEMPERATURE (K) KWRI : out of range
Severe: avg_fgdepar=-15.4698, expected range: -7.6810 6.0249
METAR 2M TEMPERATURE (K) KWRI : out of range
Severe: rms_fgdepar=15.4698, expected range: 0.0000 7.9295
BUFR LAND SYNOP 2M TEMPERATURE (K) 73234 : out of range
Severe: rms_fgdepar=10.2071, expected range: 0.0000 2.9705
BUFR LAND SYNOP 2M TEMPERATURE (K) 89064 : out of range
Severe: avg_fgdepar=-15.9420, expected range: -0.0407 2.4022
BUFR LAND SYNOP 2M TEMPERATURE (K) 89064 : out of range
Severe: rms_fgdepar=15.9420, expected range: 0.0000 3.1937
BUFR LAND SYNOP 2M TEMPERATURE (K) 91596 : out of range
Severe: avg_fgdepar=-19.2495, expected range: -2.0951 1.8736
BUFR LAND SYNOP 2M TEMPERATURE (K) 91596 : out of range
Severe: rms_fgdepar=19.2495, expected range: 0.3378 1.7748
BUFR LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-16.3050, expected range: -8.1271 0.4118
BUFR LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=16.4643, expected range: 0.0000 8.2709