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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2021-04-08 00:00

iasi
METOP-B IASI RADIANCES CHANNEL 236 : out of range
4 times in the last 10 days for at least one item
Considerable: avg_biascorr=0.0451, expected range: 0.0528 0.0634
METOP-B IASI RADIANCES CHANNEL 341 : out of range
Considerable: avg_fgdepar=-0.0877, expected range: -0.0675 -0.0369
cris
NPP CRIS RADIANCES CHANNEL 110 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-0.0493, expected range: -0.0341 -0.0147
NOAA20 CRIS RADIANCES CHANNEL 83 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0009, expected range: 0.0110 0.0192
NOAA20 CRIS RADIANCES CHANNEL 124 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0505, expected range: -0.0411 -0.0328
NOAA20 CRIS RADIANCES CHANNEL 125 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0978, expected range: -0.0901 -0.0834
NOAA20 CRIS RADIANCES CHANNEL 143 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1031, expected range: -0.0925 -0.0909
NOAA20 CRIS RADIANCES CHANNEL 110 : out of range
3 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0723, expected range: 0.0808 0.0826
Severe: avg_fgdepar=-0.0423, expected range: -0.0296 -0.0154
NPP CRIS RADIANCES CHANNEL 82 : out of range
Considerable: avg_biascorr=-0.0840, expected range: -0.0778 -0.0656
NPP CRIS RADIANCES CHANNEL 84 : out of range
4 times in the last 10 days for at least one item
Considerable: avg_biascorr=-0.0355, expected range: -0.0307 -0.0216
NPP CRIS RADIANCES CHANNEL 97 : out of range
Considerable: obs_number=3392.0000, expected range: 2722.1018 3235.8982
NPP CRIS RADIANCES CHANNEL 99 : out of range
Considerable: obs_number=3196.0000, expected range: 2515.9237 3009.4513
mwhs2
FY-3D MWHS2 ALLSKY RADIANCES (10 channels affected) : out of range
Considerable: obs_number=15871.0000, expected range: 17477.1476 19810.1024
mwri
FY-3D MWRI RADIANCES (6 channels affected) : out of range
Considerable: obs_number=5269.0000, expected range: 5719.6938 6750.4312
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 6390-6391 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: stdev_fgdepar=5.7312, expected range: 3.4431 4.4850
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 10130-10131 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: stdev_fgdepar=6.6728, expected range: 4.9774 5.3656
Radiosondes
LAND TEMP TEMPERATURE (K) 30054 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=15.2458, expected range: -1.5568 1.6781
Severe: avg_pge=0.9353, expected range: -0.2350 0.3877
LAND TEMP TEMPERATURE (K) 30054 (3 pressure layers affected) : out of range
Severe: rms_fgdepar=15.2565, expected range: 0.5939 2.4430
LAND TEMP TEMPERATURE (K) 30309 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=6.0619, expected range: 0.0000 2.6915
LAND TEMP TEMPERATURE (K) 24507 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=8.5662, expected range: 0.0000 1.9108
LAND TEMP Q (G/KG) 42647 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.6143, expected range: 0.0000 5.4451
All LAND TEMP ALL LAYERS WMO BLOCK 85 : all data missing
Severe: obs_number=0, expected range: 46.48 75.12
All LAND TEMP ALL LAYERS South West Pacific : all data missing
Severe: obs_number=0, expected range: 46.48 75.12
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 95 : all data missing
Severe: obs_number=0, expected range: 98.52 146.48
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: rms_fgdepar=3.2221, expected range: 0.8136 2.4176
HIGH RESO LAND TEMP TEMPERATURE (K) (3 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=229.0000, expected range: 82.4928 173.0072
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
4 times in the last 10 days for at least one item
Considerable: obs_number=366.0000, expected range: 439.5223 472.2277
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: obs_number=411.0000, expected range: 513.5914 555.6586
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
Considerable: obs_number=511.0000, expected range: 428.7516 472.7484
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) UKRBFGBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.1491, expected range: 0.1818 4.5115
WIGOS AMDAR Q (G/KG) 3OXWUWJA PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_pge=1.0000, expected range: -1.0630 0.7500
synop
MANUAL LAND SYNOP RH2M (%) 42770 : out of range
24 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9994, expected range: 0.3944 0.7500
MANUAL LAND SYNOP RH2M (%) 43021 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9607, expected range: -1.4002 0.7500
MANUAL LAND SYNOP RH2M (%) 42771 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9790, expected range: -0.9380 0.7500
MANUAL LAND SYNOP RH2M (%) 42963 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8958, expected range: -1.8503 0.7500
MANUAL LAND SYNOP RH2M (%) 42176 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9118, expected range: -0.3131 0.7500
MANUAL LAND SYNOP RH2M (%) 42459 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9347, expected range: -0.2188 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 41600 : out of range
Severe: rms_fgdepar=338.6673, expected range: 0.0000 186.8932
Severe: avg_pge=0.8008, expected range: -0.6493 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43330 : out of range
Severe: avg_fgdepar=-621.7350, expected range: -418.4949 264.2276
Severe: rms_fgdepar=621.7350, expected range: 0.0000 415.0787
Severe: avg_pge=0.9076, expected range: -1.3126 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 32215 : out of range
Severe: rms_fgdepar=387.0802, expected range: 0.0000 244.6978
Severe: avg_pge=0.8140, expected range: -0.4708 0.7270
MANUAL LAND SYNOP RH2M (%) 42894 : out of range
Severe: avg_fgdepar=74.7564, expected range: -36.9852 70.7732
Severe: rms_fgdepar=74.7564, expected range: 0.0000 58.1948
Severe: avg_pge=1.0000, expected range: -0.3328 0.4043
MANUAL LAND SYNOP RH2M (%) 42849 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=51.1758, expected range: -3.3490 79.0527
Severe: rms_fgdepar=51.1758, expected range: 0.0000 79.0527
BUFR LAND SYNOP SURFACE PRESSURE (PA) 16550 : out of range
Severe: rms_fgdepar=600.6429, expected range: 0.0000 357.0263
BUFR LAND SYNOP SURFACE PRESSURE (PA) 13622 : out of range
Severe: avg_pge=0.8263, expected range: -0.5375 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 14545 : out of range
Severe: avg_pge=0.8031, expected range: -0.9107 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48077 : out of range
Severe: rms_fgdepar=374.2197, expected range: 0.0000 172.0243
BUFR LAND SYNOP SURFACE PRESSURE (PA) 51818 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=568.2277, expected range: -276.2944 409.9140
BUFR LAND SYNOP RH2M (%) 71690 : out of range
Severe: avg_fgdepar=51.6945, expected range: -36.1410 45.8334
Severe: rms_fgdepar=51.6945, expected range: 0.0000 22.2095
BUFR LAND SYNOP RH2M (%) 95631 : out of range
Severe: rms_fgdepar=37.9546, expected range: 0.0000 16.6147
BUFR LAND SYNOP RH2M (%) 95646 : out of range
Severe: rms_fgdepar=31.1121, expected range: 0.0000 9.6585
BUFR LAND SYNOP RH2M (%) 16158 : out of range
Severe: rms_fgdepar=35.6761, expected range: 0.0000 18.7801
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
Considerable: obs_number=359.0000, expected range: 382.1775 418.8225
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
Considerable: obs_number=112.0000, expected range: 121.0349 129.8540
BUFR LAND SYNOP RH2M (%) : out of range
Considerable: rms_fgdepar=24.6984, expected range: 6.5033 17.0901
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VEP717 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8219, expected range: 0.0902 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) CKR759 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8618, expected range: -0.3547 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) SJA4RSK : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-519.5653, expected range: -722.6988 624.0228
Severely_persistent: rms_fgdepar=519.8432, expected range: -579.7416 711.5189
Severely_persistent: avg_pge=0.9020, expected range: -1.4762 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V9091 : out of range
Severe: avg_fgdepar=-686.8523, expected range: -214.7429 176.9731
Severe: rms_fgdepar=935.2336, expected range: 0.0000 220.0583
BUFR SHIP SYNOP SURFACE PRESSURE (PA) TBWUK75 : out of range
Severe: avg_fgdepar=-987.9689, expected range: -271.1414 193.1362
Severe: rms_fgdepar=987.9689, expected range: 0.0000 254.4618
Severe: avg_pge=0.9109, expected range: -0.4581 0.5957
BUFR SHIP SYNOP SURFACE PRESSURE (PA) S6AN5 : out of range
Severe: avg_fgdepar=-510.1929, expected range: -391.6001 444.9179
Severe: rms_fgdepar=511.5388, expected range: 0.0000 297.0422
Severe: avg_pge=0.8146, expected range: -0.7645 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) ZCDU5 : out of range
Severe: avg_fgdepar=602.2539, expected range: -450.6562 1172.2493
Severe: rms_fgdepar=602.2539, expected range: 0.0000 1168.3335
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V9777 : out of range
Severe: avg_fgdepar=-561.2555, expected range: -331.4158 283.1124
Severe: rms_fgdepar=561.2555, expected range: 0.0000 509.6729
Severe: avg_pge=0.8478, expected range: -0.7334 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V8838 : out of range
Severe: rms_fgdepar=694.6720, expected range: 0.0000 172.5650
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRCC8 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=748.4739, expected range: -883.7055 759.8648
Severe: rms_fgdepar=748.4739, expected range: 0.0000 674.6307
Severe: avg_pge=0.8550, expected range: -1.0382 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 5601522 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=456.4084, expected range: 0.0000 69.0107
Severe: avg_pge=0.8405, expected range: -0.0819 0.0898
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=3197.0000, expected range: 2180.4041 2816.2209
Slight: obs_number=10834.0000, expected range: 9887.0986 10465.1514
metar
METAR SURFACE PRESSURE (PA) OPMJ : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-718.6555, expected range: -476.2934 317.0778
Severely_persistent: rms_fgdepar=721.7794, expected range: 0.0000 419.0137
Severely_persistent: avg_pge=0.8583, expected range: -0.4689 0.7198
METAR SURFACE PRESSURE (PA) LIEB : out of range
Severe: rms_fgdepar=558.7978, expected range: 0.0000 368.6486
METAR SURFACE PRESSURE (PA) FWCL : out of range
Severe: rms_fgdepar=512.7799, expected range: 0.0000 205.6657
METAR SURFACE PRESSURE (PA) HTSO : out of range
Severe: rms_fgdepar=322.7143, expected range: 0.0000 154.6971
snow
MANUAL LAND SYNOP SNOW (CM) 29900 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=71.2082, expected range: 56.3683 76.7144
Severely_persistent: rms_fgdepar=71.2082, expected range: 56.3683 76.7144
MANUAL LAND SYNOP SNOW (CM) 28862 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=57.7851, expected range: 59.6743 75.0310
Severely_persistent: rms_fgdepar=57.7851, expected range: 59.6743 75.0310
MANUAL LAND SYNOP SNOW (CM) 30815 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=83.5872, expected range: 64.6676 89.5864
Severely_persistent: rms_fgdepar=83.5872, expected range: 64.6676 89.5864
ROCOB TEMP SNOW (CM) 63309115 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-60.4446, expected range: -71.9928 -59.8222
Severely_persistent: rms_fgdepar=60.4446, expected range: 59.8222 71.9928
BUFR LAND SYNOP SNOW (CM) 29900 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=71.2082, expected range: 56.3683 76.7144
Severely_persistent: rms_fgdepar=71.2082, expected range: 56.3683 76.7144
BUFR LAND SYNOP SNOW (CM) 28862 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=57.7851, expected range: 59.6743 75.0310
Severely_persistent: rms_fgdepar=57.7851, expected range: 59.6743 75.0310
BUFR LAND SYNOP SNOW (CM) 30815 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=83.9995, expected range: 65.3535 89.9922
Severely_persistent: rms_fgdepar=83.9995, expected range: 65.3535 89.9922
BUFR LAND SYNOP SNOW (CM) 01025 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-53.6028, expected range: -66.3597 -33.9466
Severely_persistent: rms_fgdepar=53.6028, expected range: 33.9466 66.3597
BUFR LAND SYNOP SNOW (CM) 01435 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=50.2260, expected range: 46.4931 54.7291
Severely_persistent: rms_fgdepar=50.2264, expected range: 46.6229 54.6362
AUTOMATIC LAND SYNOP SNOW (CM) 11366 : out of range
Severe: rms_fgdepar=18.3251, expected range: 0.0000 9.3909
MANUAL LAND SYNOP SNOW (CM) 16021 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=55.2205, expected range: 47.9139 62.4830
Severe: rms_fgdepar=55.2205, expected range: 47.9139 62.4830
MANUAL LAND SYNOP SNOW (CM) 29263 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=22.4239, expected range: 0.3910 8.4902
MANUAL LAND SYNOP SNOW (CM) 28884 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=22.4947, expected range: 3.1491 8.5811
MANUAL LAND SYNOP SNOW (CM) 35294 : out of range
Severe: rms_fgdepar=17.6491, expected range: 0.0000 9.3041
MANUAL LAND SYNOP SNOW (CM) 23699 : out of range
Severe: avg_fgdepar=-67.6795, expected range: -1.1945 8.6111
Severe: rms_fgdepar=67.6795, expected range: 0.0000 8.6111
ROCOB TEMP SNOW (CM) 63301060 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=56.0227, expected range: 5.4905 69.2673
Severe: rms_fgdepar=56.0227, expected range: 5.4905 69.2673
BUFR LAND SYNOP SNOW (CM) 28884 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=22.4947, expected range: 3.1491 8.5811
BUFR LAND SYNOP SNOW (CM) 35294 : out of range
Severe: rms_fgdepar=17.6491, expected range: 0.0000 9.3041
BUFR LAND SYNOP SNOW (CM) 10836 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=36.2747, expected range: -1.7525 2.1115
BUFR LAND SYNOP SNOW (CM) 23699 : out of range
Severe: avg_fgdepar=-67.5133, expected range: -1.0388 8.8546
Severe: rms_fgdepar=67.5133, expected range: 0.0000 8.8546
t2m
METAR 2M TEMPERATURE (K) KNID : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.1545, expected range: -18.5718 -0.9503
Severely_persistent: rms_fgdepar=13.6140, expected range: 3.0839 16.5178
LAND TEMP 2M TEMPERATURE (K) 61687 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-15.5401, expected range: -27.1986 4.4564
Severely_persistent: rms_fgdepar=15.5401, expected range: 0.0000 27.1986
METAR 2M TEMPERATURE (K) KMWA : out of range
Severe: rms_fgdepar=10.7804, expected range: 0.4911 5.2338