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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2020-07-04 12:00

amsua
NOAA-18 AMSUA RADIANCES CHANNEL 12 : out of range
1 times in the last 10 days for at least one item
Considerable: stdev_fgdepar=0.4668, expected range: 0.3003 0.4074
iasi
METOP-A IASI RADIANCES CHANNEL 72 : out of range
Considerable: avg_biascorr=-0.7742, expected range: -0.6314 -0.4097
METOP-B IASI RADIANCES CHANNEL 72 : out of range
1 times in the last 10 days for at least one item
Considerable: avg_biascorr=-0.7176, expected range: -0.5963 -0.3853
ssmis
DMSP-18 SSMIS RADIANCES CHANNEL 11 : out of range
Severe: avg_norm_fgdepar=0.1067, expected range: -0.1570 -0.0292
DMSP-18 SSMIS RADIANCES CHANNEL 10 : out of range
Considerable: avg_norm_fgdepar=0.0688, expected range: -0.1361 -0.0023
gpsro
All COSMIC2-E1 GPSRO RISING ALL HEIGHTS Global : all data missing
Severe: obs_number=0, expected range: 567.56 3786.83
SPIRE LEMUR 3U GPSRO SETTING HEIGHT 3 : out of range
1 times in the last 10 days for at least one item
Severe: stdev_norm_fgdepar=0.3429, expected range: 0.1069 0.1909
COSMIC2-E6 GPSRO RISING HEIGHT 13 : out of range
Slight: avg_norm_fgdepar=0.2656, expected range: -0.1604 0.1774
Atmospheric Motion Vector
GOES-16 AMV VIS1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 600-900 (HPA) : out of range
Considerable: obs_number=1876.0000, expected range: 2420.4286 3457.8214
METEOSAT-8 AMV CLOUDY WV1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 : out of range
Slight: avg_fgdepar=4.8526, expected range: 4.3012 4.6660
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 20-21 (HPA) : out of range
10 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=0.0147, expected range: 0.0074 0.0113
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1-2 (HPA) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=0.0233, expected range: 0.0023 0.0131
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 30-31 (HPA) : out of range
4 times in the last 10 days for at least one item
Slight: stdev_fgdepar=0.0241, expected range: 0.0090 0.0209
Radiosondes
LAND TEMP TEMPERATURE (K) 34247 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=9.4315, expected range: 0.3250 2.7572
LAND TEMP Q (G/KG) 27199 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.1988, expected range: 0.0776 1.2435
LAND TEMP Q (G/KG) 64910 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.2923, expected range: 0.0000 1.2176
LAND TEMP Q (G/KG) 38341 PRESSURE LAYER 900-1200 (HPA) : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=6.0950, expected range: -6.1209 16.0877
Severe: rms_fgdepar=6.0950, expected range: 0.0000 16.1064
LAND TEMP Q (G/KG) 61052 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=7.7150, expected range: -10.6343 9.6089
Severe: rms_fgdepar=7.7234, expected range: 0.0000 7.4012
LAND TEMP Q (G/KG) 37055 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.9460, expected range: 0.0000 5.1431
HIGH RESO LAND TEMP TEMPERATURE (K) 17030 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=7.5487, expected range: 0.0000 2.8814
HIGH RESO LAND TEMP TEMPERATURE (K) 17030 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_fgdepar=-9.2465, expected range: -0.5197 0.6344
Severe: avg_pge=0.9105, expected range: -0.0708 0.0947
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : missing
3 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 82.3654 724.3742
HIGH RESO LAND TEMP Q (G/KG) 72764 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=-6.0517, expected range: -5.4021 5.2074
Severe: rms_fgdepar=6.0569, expected range: 0.0000 4.0234
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 83 : all data missing
Severe: obs_number=0, expected range: 36.64 345.35
HIGH RESO SEA TEMP TEMPERATURE (K) (2 pressure layers affected) : missing
Severe: obs_number=0.0000, expected range: 6.1283 658.7687
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 300-600 (HPA) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=280.0000, expected range: 190.3486 246.9014
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) W2QINLZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.3218, expected range: 0.0000 7.5179
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 48480 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=21.5206, expected range: 0.0000 26.9139
LAND PILOT WIND VECTOR DIFF (M/S) 43063 PRESSURE LAYER 600-900 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=16.4590, expected range: 0.3840 7.9707
Severe: avg_pge=0.8128, expected range: -0.2784 0.7061
synop
AUTOMATIC LAND SYNOP RH2M (%) 35182 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9853, expected range: -1.3881 0.7500
MANUAL LAND SYNOP RH2M (%) 42776 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-57.5570, expected range: -76.2735 -10.5680
Severely_persistent: rms_fgdepar=57.5570, expected range: 10.5680 76.2735
Severely_persistent: avg_pge=1.0000, expected range: 0.2894 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40674 : out of range
23 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=566.1534, expected range: -767.2071 1200.4476
Severely_persistent: rms_fgdepar=568.7664, expected range: 0.0000 1192.4237
BUFR LAND SYNOP SURFACE PRESSURE (PA) 11880 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=372.1864, expected range: 0.0000 147.3022
Severely_persistent: avg_pge=0.8585, expected range: -0.4633 0.6358
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48921 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-554.2822, expected range: -579.5228 530.1121
Severely_persistent: rms_fgdepar=554.2822, expected range: 0.0000 334.5179
Severely_persistent: avg_pge=0.8617, expected range: -1.0234 0.7500
MANUAL LAND SYNOP RH2M (%) 42452 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9419, expected range: -1.3652 0.7500
MANUAL LAND SYNOP RH2M (%) 61075 : out of range
Severe: rms_fgdepar=34.4694, expected range: 0.0000 19.6157
MANUAL LAND SYNOP RH2M (%) 41746 : out of range
Severe: avg_pge=0.9813, expected range: -0.6491 0.7500
MANUAL LAND SYNOP RH2M (%) 36859 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=55.9378, expected range: 3.8549 54.0940
Severe: rms_fgdepar=55.9378, expected range: 3.8549 54.0940
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 87470 : out of range
Severe: avg_fgdepar=-512.8207, expected range: -406.6166 207.6567
Severe: rms_fgdepar=512.8207, expected range: 0.0000 359.3643
Severe: avg_pge=0.8843, expected range: -1.0823 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 97580 : out of range
Severe: rms_fgdepar=336.4118, expected range: 0.0000 152.9441
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40631 : out of range
Severe: rms_fgdepar=316.2688, expected range: 4.2189 151.6732
Severe: avg_pge=0.8059, expected range: -0.6515 0.7500
BUFR LAND SYNOP RH2M (%) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=1200.0000, expected range: 1472.5261 1504.5850
Severe: obs_number=1294.0000, expected range: 1559.6625 1596.0875
Considerable: obs_number=1763.0000, expected range: 1976.3521 2099.7656
BUFR LAND SYNOP SURFACE PRESSURE (PA) 72327 : out of range
Severe: avg_pge=0.8757, expected range: 0.8445 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24967 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=594.8817, expected range: -1067.2311 1388.9658
Severe: avg_pge=0.8064, expected range: -1.2233 0.7500
BUFR LAND SYNOP Z (M) 56247 : out of range
Severe: avg_pge=0.9612, expected range: -0.0017 0.0029
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) : out of range
Considerable: obs_number=260.0000, expected range: 293.4109 336.0891
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7SD8 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=561.4663, expected range: -256.8239 1278.5220
Severely_persistent: rms_fgdepar=561.4663, expected range: 0.0000 1274.9325
Severely_persistent: avg_pge=0.8021, expected range: -0.3017 0.7500
SHIP SURFACE PRESSURE (PA) 9V9413 : out of range
Severe: avg_fgdepar=516.8373, expected range: -779.2131 1485.7352
Severe: rms_fgdepar=516.8373, expected range: 0.0000 1428.5791
SHIP SURFACE PRESSURE (PA) V7AP5 : out of range
Severe: avg_fgdepar=1260.5966, expected range: -150.3267 355.9979
Severe: rms_fgdepar=1260.5966, expected range: 0.0000 362.9767
SHIP SURFACE PRESSURE (PA) V7SD8 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=561.4663, expected range: -388.0683 1379.5907
Severe: rms_fgdepar=561.4663, expected range: 0.0000 1379.5907
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRJV2 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=511.6327, expected range: -712.6210 780.8122
Severe: rms_fgdepar=511.6327, expected range: -497.4626 703.1361
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OZBY2 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=505.8235, expected range: -640.2201 1306.3807
Severe: rms_fgdepar=505.8235, expected range: 0.0000 1360.3981
Severe: avg_pge=0.8068, expected range: -1.1210 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V9413 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=516.8373, expected range: -657.5250 1416.7845
Severe: rms_fgdepar=516.8373, expected range: 0.0000 1363.5755
Severe: avg_pge=0.8079, expected range: -0.5369 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) J8AZ3 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=321.5568, expected range: 30.1418 186.8849
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7AP5 : out of range
Severe: avg_fgdepar=1260.5966, expected range: -100.5551 321.6166
Severe: rms_fgdepar=1260.5966, expected range: 0.0000 357.6816
Severe: avg_pge=0.9200, expected range: -1.0125 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VGPY : out of range
Severe: avg_fgdepar=545.7145, expected range: -681.2945 960.2354
Severe: rms_fgdepar=545.7145, expected range: 0.0000 821.3321
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) C6OA3 : out of range
Severe: rms_fgdepar=20.1409, expected range: 0.0000 11.9268
Severe: avg_pge=0.8558, expected range: -1.0553 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) V7HH3 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=30.1217, expected range: -26.2235 37.7848
Severe: rms_fgdepar=30.1217, expected range: -26.2235 37.7848
Severe: avg_pge=0.9469, expected range: -1.0990 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 2IYG9 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=24.4104, expected range: -9.5945 17.8012
Severe: rms_fgdepar=24.4104, expected range: 0.0000 21.0853
Severe: avg_pge=0.9281, expected range: -1.2028 0.7500
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 5300041 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8646, expected range: 0.3665 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1601582 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8774, expected range: -1.0983 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 3101546 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=680.9769, expected range: -831.8367 954.0313
Severe: rms_fgdepar=688.3524, expected range: 0.0000 822.7158
Severe: avg_pge=0.9185, expected range: -0.9257 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=88.0000, expected range: 96.0427 101.1152
metar
METAR SURFACE PRESSURE (PA) FQLC : out of range
Severe: rms_fgdepar=432.7382, expected range: 0.0000 152.3561
METAR SURFACE PRESSURE (PA) VAJM : out of range
Severe: rms_fgdepar=338.2325, expected range: 0.0000 118.9631
snow
BUFR LAND SYNOP SNOW (CM) 01035 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=105.5135, expected range: 99.5746 134.1119
Severely_persistent: rms_fgdepar=105.5135, expected range: 99.5727 134.1199
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.9004, expected range: -12.5790 -4.5386
Severely_persistent: rms_fgdepar=13.9193, expected range: 4.6409 12.7473
Severely_persistent: avg_est_pge=0.8702, expected range: 0.6646 0.8864
METAR 2M TEMPERATURE (K) KLCK : out of range
30 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-12.6554, expected range: -18.6295 -8.4964
Severely_persistent: rms_fgdepar=12.6554, expected range: 8.8041 18.8789
BUFR LAND SYNOP 2M TEMPERATURE (K) 27415 : out of range
28 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-19.7648, expected range: -21.1980 -11.6707
Severely_persistent: rms_fgdepar=19.7648, expected range: 11.8259 21.1423
BUFR LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-14.0820, expected range: -12.4190 -4.8323
Severely_persistent: rms_fgdepar=14.1000, expected range: 4.8881 12.6310
Severely_persistent: avg_est_pge=0.8719, expected range: 0.6847 0.8727
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89266 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=16.4957, expected range: -6.8244 6.8563
Severe: rms_fgdepar=16.6087, expected range: 0.0000 6.8199
Severe: avg_est_pge=0.8275, expected range: -0.2261 0.6294
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89578 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8263, expected range: -0.2276 0.9568
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=1546.0000, expected range: 1832.7586 1859.1237
Considerable: obs_number=1943.0000, expected range: 2186.8945 2366.9879
MANUAL LAND SYNOP 2M TEMPERATURE (K) 41640 : out of range
Severe: rms_fgdepar=10.0116, expected range: 0.1285 4.2610
MANUAL LAND SYNOP 2M TEMPERATURE (K) 36859 : out of range
Severe: rms_fgdepar=11.2733, expected range: 0.6944 6.4935
METAR 2M TEMPERATURE (K) KNPA : out of range
Severe: rms_fgdepar=10.7920, expected range: 0.0000 5.0984
LAND TEMP 2M TEMPERATURE (K) 82965 : out of range
Severe: avg_fgdepar=-19.6052, expected range: -5.0369 4.0074
Severe: rms_fgdepar=19.6052, expected range: 0.0000 4.6601
Severe: avg_est_pge=0.9120, expected range: -0.4867 0.8025
LAND TEMP 2M TEMPERATURE (K) 65548 : out of range
Severe: avg_fgdepar=-12.7790, expected range: -16.8585 7.6963
Severe: rms_fgdepar=12.7790, expected range: 0.0000 16.8585
BUFR LAND SYNOP 2M TEMPERATURE (K) 41640 : out of range
Severe: rms_fgdepar=10.0639, expected range: 0.3754 4.1998
BUFR LAND SYNOP 2M TEMPERATURE (K) 89266 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=16.5834, expected range: -6.6720 6.7517
Severe: rms_fgdepar=16.7118, expected range: 0.0000 6.5261
BUFR LAND SYNOP 2M TEMPERATURE (K) 89578 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8272, expected range: -0.2390 0.9747
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=1866.0000, expected range: 2135.9490 2191.3451
rh2m
All BUFR LAND SYNOP WMO BLOCK 98 : all data missing
Severely_persistent: obs_number=0, expected range: 123.36 134.35
AUTOMATIC LAND SYNOP RH2M (%) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=1857.0000, expected range: 2053.8345 2335.3877
Considerable: obs_number=1476.0000, expected range: 1732.9863 1804.3078