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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2021-02-21 00:00

amsua
METOP-A AMSUA RADIANCES (8 channels affected) : out of range
Considerable: obs_number=6100.0000, expected range: 7064.3956 8500.1044
mhs
All METOP-A MHS ALLSKY ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 14249.90 17759.85
ssmis
All DMSP-17 SSMIS ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 6275.41 18851.49
All DMSP-18 SSMIS ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 6132.60 18299.30
Atmospheric Motion Vector
METEOSAT-11 AMV VIS2 WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (H : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=337.0000, expected range: 484.6906 748.5594
Radiosondes
LAND TEMP TEMPERATURE (K) 24266 PRESSURE LAYER 900-1200 (HPA) : out of range
21 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8893, expected range: -0.0632 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 29839 PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8234, expected range: -1.2189 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 91334 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=20.2589, expected range: 0.6902 9.5456
Severe: avg_fgdepar=20.2589, expected range: 1.1126 7.6651
HIGH RESO LAND TEMP Q (G/KG) 94203 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=4.9643, expected range: 0.0000 2.6313
HIGH RESO LAND TEMP Q (G/KG) 94672 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.8831, expected range: 0.0000 1.5761
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
Severe: obs_number=93.0000, expected range: 178.0418 194.6249
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 88 : all data missing
Severe: obs_number=0, expected range: 117.09 146.24
HIGH RESO SEA TEMP TEMPERATURE (K) (3 pressure layers affected) : missing
Severe: obs_number=0.0000, expected range: 2.3445 480.7221
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=146.0000, expected range: 83.1999 100.0501
Considerable: avg_fgdepar=1.1492, expected range: -0.6976 0.5034
HIGH RESO LAND TEMP TEMPERATURE (K) (3 pressure layers affected) : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=177.0000, expected range: 127.8364 145.9136
amdar
All AMDAR ALL LAYERS South Atlantic : all data missing
Severe: obs_number=0, expected range: 2.53 378.78
ADS-C WIND VECTOR DIFF (M/S) WN5UC5RA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=28.1380, expected range: 0.0000 8.3443
Severe: avg_fgdepar=28.1380, expected range: -0.8382 7.7623
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 17926 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9322, expected range: -1.0914 0.7500
Severely_persistent: rms_fgdepar=693.0918, expected range: 0.0000 1807.3349
Severely_persistent: avg_fgdepar=-693.0918, expected range: -2268.0969 2141.9689
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 18133 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8383, expected range: -0.5581 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 18162 : out of range
28 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=715.7086, expected range: 595.0018 848.5159
Severely_persistent: avg_fgdepar=715.6351, expected range: 594.2864 848.0739
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 18210 : out of range
24 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8889, expected range: -1.1628 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 17015 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8358, expected range: -0.8828 0.7500
BUFR LAND SYNOP RH2M (%) 06750 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8793, expected range: -1.0754 0.7500
Severely_persistent: rms_fgdepar=53.3365, expected range: 0.0000 65.5829
Severely_persistent: avg_fgdepar=-53.2647, expected range: -71.8634 44.0401
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=187.0000, expected range: 1713.5324 1743.5787
Severe: obs_number=241.0000, expected range: 1769.0806 1796.9194
Considerable: obs_number=2029.0000, expected range: 3617.5493 4861.7007
AUTOMATIC LAND SYNOP RH2M (%) 18117 : out of range
Severe: rms_fgdepar=51.4461, expected range: 0.0000 45.9926
Severe: avg_fgdepar=51.1283, expected range: -21.7711 48.6095
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40656 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9016, expected range: -1.3718 0.7500
Severe: rms_fgdepar=575.6001, expected range: 0.0000 247.3236
Severe: avg_fgdepar=-575.6001, expected range: -144.2065 252.3641
MANUAL LAND SYNOP RH2M (%) 60765 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=45.0239, expected range: 0.0000 25.2202
BUFR LAND SYNOP Z (M) 06715 : out of range
Severe: avg_pge=0.9079, expected range: -0.7459 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 16539 : out of range
Severe: avg_pge=0.8820, expected range: -0.8264 0.7500
Severe: rms_fgdepar=443.0320, expected range: 0.0000 115.7267
BUFR LAND SYNOP SURFACE PRESSURE (PA) 86846 : out of range
Severe: rms_fgdepar=781.8033, expected range: 636.7498 911.3362
Severe: avg_fgdepar=781.8007, expected range: 636.6511 911.3923
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48333 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=563.2994, expected range: 0.0000 99.7924
BUFR LAND SYNOP RH2M (%) 24768 : out of range
Severe: rms_fgdepar=42.3563, expected range: 3.0234 24.7419
BUFR LAND SYNOP RH2M (%) 10818 : out of range
Severe: rms_fgdepar=33.8974, expected range: 0.0000 18.5982
BUFR LAND SYNOP RH2M (%) 48581 : out of range
Severe: rms_fgdepar=31.2302, expected range: 0.0000 7.4626
BUFR LAND SYNOP RH2M (%) 07621 : out of range
Severe: rms_fgdepar=57.2054, expected range: 0.0000 57.7639
Severe: avg_fgdepar=57.1416, expected range: -28.2277 45.3644
BUFR LAND SYNOP RH2M (%) 11310 : out of range
Severe: rms_fgdepar=51.9411, expected range: 0.0000 46.9128
Severe: avg_fgdepar=-51.6011, expected range: -66.1323 47.6625
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
3 times in the last 10 days for at least one item
Considerable: obs_number=203.0000, expected range: 344.6173 464.1327
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=0.8191, expected range: 0.2549 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6VR7 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8044, expected range: -1.0463 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRLZ7 : out of range
Severe: rms_fgdepar=757.2629, expected range: 0.0000 304.1877
Severe: avg_fgdepar=522.9737, expected range: -284.6429 216.5512
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRIZ5 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9207, expected range: -0.4956 0.7500
Severe: rms_fgdepar=1293.6663, expected range: 0.0000 653.6131
Severe: avg_fgdepar=1293.6663, expected range: -483.0143 801.2186
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3FVW3 : out of range
Severe: avg_pge=0.9290, expected range: -0.1933 0.7500
Severe: rms_fgdepar=1201.8546, expected range: 0.0000 676.7793
Severe: avg_fgdepar=-1201.8546, expected range: -585.8222 -79.5135
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) H3TM : out of range
Severe: avg_pge=0.8825, expected range: -0.9055 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101627 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9261, expected range: -1.1729 0.7500
Severely_persistent: rms_fgdepar=734.1720, expected range: 0.0000 1170.5872
Severely_persistent: avg_fgdepar=-730.5724, expected range: -1318.5647 1128.7976
DRIFTING BUOYS SURFACE PRESSURE (PA) 4601840 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8710, expected range: -0.8524 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1501749 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8243, expected range: -0.0423 0.0526
Severe: rms_fgdepar=400.9638, expected range: 0.0000 98.7311
DRIFTING BUOYS SURFACE PRESSURE (PA) 4401574 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8585, expected range: -1.2787 0.7500
Severe: rms_fgdepar=517.0470, expected range: 0.0000 480.4322
DRIFTING BUOYS SURFACE PRESSURE (PA) 7201510 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8905, expected range: -0.8796 0.7500
Severe: rms_fgdepar=510.4396, expected range: -387.6227 581.1957
metar
AUTOMATIC METAR SURFACE PRESSURE (PA) KT89 : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8408, expected range: -0.1776 0.7500
Severely_persistent: rms_fgdepar=701.7160, expected range: 0.0000 1308.2646
Severely_persistent: avg_fgdepar=-698.9426, expected range: -1289.9722 457.2617
METAR SURFACE PRESSURE (PA) LICG : out of range
Severe: rms_fgdepar=540.2049, expected range: 0.0000 149.6905
METAR SURFACE PRESSURE (PA) MGPB : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=322.4937, expected range: 0.0000 120.5929
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=90.4260, expected range: 86.0670 103.9347
Severely_persistent: avg_fgdepar=90.4260, expected range: 86.0670 103.9347
MANUAL LAND SYNOP SNOW (CM) 71816 : out of range
28 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=64.6611, expected range: 60.5967 77.5975
Severely_persistent: avg_fgdepar=-64.6611, expected range: -77.5886 -60.6022
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=65.6792, expected range: 52.3247 69.9301
Severely_persistent: avg_fgdepar=65.6792, expected range: 52.3247 69.9301
ROCOB TEMP SNOW (CM) 63309115 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=52.4052, expected range: 31.4369 62.2412
Severely_persistent: avg_fgdepar=-52.4052, expected range: -62.2412 -31.4369
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=88.2269, expected range: 82.8701 103.4345
Severely_persistent: avg_fgdepar=88.2269, expected range: 82.8701 103.4345
BUFR LAND SYNOP SNOW (CM) 01036 : out of range
28 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=118.5255, expected range: 54.9295 116.1373
Severely_persistent: avg_fgdepar=-118.5205, expected range: -116.0149 -54.9703
BUFR LAND SYNOP SNOW (CM) 71816 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=64.6484, expected range: 60.3182 77.9515
Severely_persistent: avg_fgdepar=-64.6484, expected range: -77.9455 -60.3213
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=65.9567, expected range: 52.4684 70.2403
Severely_persistent: avg_fgdepar=65.9567, expected range: 52.4683 70.2403
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=92.2051, expected range: 70.0509 96.0809
Severely_persistent: avg_fgdepar=-92.1973, expected range: -96.0383 -70.0579
MANUAL LAND SYNOP SNOW (CM) 23678 : out of range
Severe: rms_fgdepar=21.5431, expected range: 0.0000 6.3962
MANUAL LAND SYNOP SNOW (CM) 40710 : out of range
Severe: rms_fgdepar=16.5796, expected range: 0.0000 0.0001
ROCOB TEMP SNOW (CM) 63302960 : out of range
Severe: rms_fgdepar=17.1524, expected range: 0.0000 7.5837
BUFR LAND SYNOP SNOW (CM) 01429 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=27.4193, expected range: -5.2567 9.3560
BUFR LAND SYNOP SNOW (CM) 23678 : out of range
Severe: rms_fgdepar=20.5982, expected range: 0.0000 4.4837
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 53915 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=16.8573, expected range: 0.0000 14.1933
Severely_persistent: avg_fgdepar=16.8573, expected range: -4.3335 14.4181
BUFR LAND SYNOP 2M TEMPERATURE (K) 02805 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=14.2876, expected range: 0.0000 14.5612
Severely_persistent: avg_fgdepar=-14.2649, expected range: -15.7360 6.1241
BUFR LAND SYNOP 2M TEMPERATURE (K) 02890 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=17.1490, expected range: 0.0000 18.2730
Severely_persistent: avg_fgdepar=-17.1245, expected range: -19.0446 6.5920
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 18139 : out of range
Severe: rms_fgdepar=12.6962, expected range: 0.0221 5.3061
Severe: avg_fgdepar=12.0846, expected range: -1.6455 3.8999
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 53898 : out of range
Severe: rms_fgdepar=12.9069, expected range: 2.4969 13.1288
Severe: avg_fgdepar=12.9069, expected range: 2.4969 13.1288
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 52787 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=13.2444, expected range: 0.0000 16.3442
Severe: avg_fgdepar=13.2444, expected range: -1.2713 16.3442
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 53487 : out of range
Severe: rms_fgdepar=12.4348, expected range: 2.2464 14.0718
Severe: avg_fgdepar=12.4348, expected range: 2.2464 14.0718
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 54405 : out of range
Severe: rms_fgdepar=12.1628, expected range: 0.0000 14.8475
Severe: avg_fgdepar=12.1628, expected range: -3.9217 14.8475
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 57083 : out of range
Severe: rms_fgdepar=12.4074, expected range: 0.0000 13.8158
Severe: avg_fgdepar=12.4074, expected range: -12.7938 17.2270
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 53673 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=13.1743, expected range: 0.0000 16.1888
Severe: avg_fgdepar=13.1743, expected range: -2.5847 16.1888
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 53772 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=14.1528, expected range: 0.0000 16.1540
Severe: avg_fgdepar=14.1528, expected range: -6.8058 16.4467
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 57461 : out of range
Severe: rms_fgdepar=12.0051, expected range: 0.0000 11.7361
Severe: avg_fgdepar=12.0051, expected range: -8.3811 13.5884
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 58321 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=13.0124, expected range: 0.0000 14.0707
Severe: avg_fgdepar=13.0124, expected range: -0.8100 14.0707
MANUAL LAND SYNOP 2M TEMPERATURE (K) 36736 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=16.2230, expected range: 0.0000 14.6891
Severe: avg_fgdepar=15.7482, expected range: -4.8329 14.6271
METAR 2M TEMPERATURE (K) VYNT : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=12.3102, expected range: 8.8331 12.9681
Severe: avg_fgdepar=12.2447, expected range: 8.7266 12.7522
METAR 2M TEMPERATURE (K) OITL : out of range
Severe: rms_fgdepar=12.4973, expected range: 0.0000 7.4823
BUFR LAND SYNOP 2M TEMPERATURE (K) 36736 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=16.1744, expected range: 0.0000 14.6315
Severe: avg_fgdepar=15.6982, expected range: -4.8829 14.5771
BUFR LAND SYNOP 2M TEMPERATURE (K) 01082 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=14.7978, expected range: 0.0000 15.1021
Severe: avg_fgdepar=-14.7059, expected range: -15.7692 6.2972
BUFR LAND SYNOP 2M TEMPERATURE (K) 10962 : out of range
Severe: rms_fgdepar=12.9768, expected range: 0.0000 6.6698
Severe: avg_fgdepar=12.8057, expected range: -6.4294 6.5667
LAND TEMP 2M TEMPERATURE (K) : out of range
Considerable: obs_number=86.0000, expected range: 92.7216 103.5137
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=137.0000, expected range: 150.7419 158.4803
rh2m
MANUAL LAND SYNOP RH2M (%) 17248 : out of range
Severe: rms_fgdepar=38.4208, expected range: 0.0000 21.0951
MANUAL LAND SYNOP RH2M (%) 86575 : out of range
Severe: rms_fgdepar=32.5673, expected range: 0.0000 18.4972