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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-10-06 00:00

iasi
METOP-B IASI RADIANCES CHANNEL 3312 : out of range
1 times in the last 10 days for at least one item
Considerable: stdev_fgdepar=1.4594, expected range: 0.5286 1.1471
METOP-B IASI RADIANCES CHANNEL 3098 : out of range
2 times in the last 10 days for at least one item
Considerable: stdev_fgdepar=0.9476, expected range: 0.3567 0.7104
METOP-B IASI RADIANCES CHANNEL 3248 : out of range
1 times in the last 10 days for at least one item
Considerable: stdev_fgdepar=0.6840, expected range: 0.4212 0.5940
METOP-B IASI RADIANCES CHANNEL 3252 : out of range
Considerable: stdev_fgdepar=1.5011, expected range: 0.4857 1.1463
METOP-B IASI RADIANCES CHANNEL 3446 : out of range
1 times in the last 10 days for at least one item
Considerable: stdev_fgdepar=1.4110, expected range: 0.5768 1.0539
METOP-B IASI RADIANCES CHANNEL 3448 : out of range
1 times in the last 10 days for at least one item
Considerable: stdev_fgdepar=0.9242, expected range: 0.5820 0.7869
METOP-B IASI RADIANCES CHANNEL 3452 : out of range
Considerable: stdev_fgdepar=1.4337, expected range: 0.5177 1.0753
METOP-B IASI RADIANCES CHANNEL 3509 : out of range
Considerable: stdev_fgdepar=1.5314, expected range: 0.5895 1.1309
METOP-B IASI RADIANCES CHANNEL 3575 : out of range
1 times in the last 10 days for at least one item
Considerable: stdev_fgdepar=1.2886, expected range: 0.6810 1.0620
METOP-B IASI RADIANCES CHANNEL 3658 : out of range
1 times in the last 10 days for at least one item
Considerable: stdev_fgdepar=1.4328, expected range: 0.6815 1.1689
ssmis
DMSP-18 SSMIS RADIANCES CHANNEL 10 : out of range
Considerable: obs_number=19569.0000, expected range: 21845.5078 23760.3672
DMSP-18 SSMIS RADIANCES CHANNEL 11 : out of range
Considerable: obs_number=19536.0000, expected range: 21802.5460 23851.9540
DMSP-18 SSMIS RADIANCES CHANNEL 9 : out of range
Slight: obs_number=14521.0000, expected range: 16336.2893 18603.7107
gpsro
COSMIC2-E1 GPSRO RISING HEIGHT 44-46 KM : out of range
Slight: avg_norm_fgdepar=0.1377, expected range: -0.1428 0.0703
COSMIC2-E5 GPSRO SETTING (20 impact heights affected) : out of range
Slight: obs_number=654.0000, expected range: 1099.5391 2798.7215
SENTINEL 6A GPSRO SETTING (7 impact heights affected) : out of range
Slight: obs_number=1679.0000, expected range: 2262.9363 3454.8137
SENTINEL 6A GPSRO RISING HEIGHT 20-22 KM : out of range
Slight: obs_number=1066.0000, expected range: 1332.2893 2216.0857
SENTINEL 6A GPSRO RISING HEIGHT 22-24 KM : out of range
Slight: obs_number=936.0000, expected range: 1174.1209 1954.5850
SENTINEL 6A GPSRO RISING HEIGHT 24-26 KM : out of range
1 times in the last 10 days for at least one item
Slight: obs_number=845.0000, expected range: 1038.5565 1741.9435
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1-2 (HPA) : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-0.0140, expected range: -0.0078 -0.0032
Severely_persistent: avg_fgdepar=-0.0765, expected range: -0.0238 0.0126
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 10-11 (HPA) : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-0.0529, expected range: -0.0468 -0.0465
METOP-B GOME-2 OZONE, TOP PRESSURE LAYER 12-13 (HPA) : out of range
19 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=9.3580, expected range: 4.9425 7.3996
Severely_persistent: avg_biascorr=-0.8193, expected range: -1.0319 -0.9301
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1010-1011 (HPA) : out of range
18 times in the last 10 days for at least one item
Slight: avg_fgdepar=-3.9059, expected range: -3.3301 -3.3301
Radiosondes
LAND TEMP Q (G/KG) 96805 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=-6.3753, expected range: -2.1702 3.5920
Severe: rms_fgdepar=6.3753, expected range: 0.0000 3.2005
Severe: avg_pge=0.8619, expected range: -0.0004 0.0068
LAND TEMP Q (G/KG) 41217 PRESSURE LAYER 900-1200 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=8.4813, expected range: 0.0000 12.0094
LAND TEMP WIND VECTOR DIFF (M/S) 24641 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=21.2188, expected range: -0.0581 3.9785
Severe: rms_fgdepar=21.2188, expected range: 0.0818 4.5921
Severe: avg_pge=0.8544, expected range: -0.4367 0.5306
HIGH RESO LAND TEMP Q (G/KG) (2 pressure layers affected) : out of range
Severe: obs_number=666.0000, expected range: 755.1111 771.7778
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 300-600 (HPA) : missing
Severe: obs_number=0.0000, expected range: 0.0000 290.8715
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (3 pressure layers affected : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=182.0000, expected range: 85.2450 96.5050
HIGH RESO LAND TEMP TEMPERATURE (K) 04417 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=8.3275, expected range: 0.0000 2.6790
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
Severe: obs_number=364.0000, expected range: 452.2204 459.7796
amdar
WIGOS AMDAR TEMPERATURE (K) EU0850 PRESSURE LAYER 0-300 (HPA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=10.7163, expected range: -0.6287 0.9296
Severely_persistent: rms_fgdepar=10.7163, expected range: 0.0000 1.3074
Severely_persistent: avg_pge=0.9050, expected range: -0.0637 0.0731
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU0665 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=16.2820, expected range: 0.0000 5.9118
Severe: avg_pge=0.8164, expected range: -0.2936 0.3594
WIGOS AMDAR WIND VECTOR DIFF (M/S) AU0152 PRESSURE LAYER 900-1200 (HPA : out of range
Severe: rms_fgdepar=16.2751, expected range: 0.0557 4.4278
ADS-C WIND VECTOR DIFF (M/S) D4WXUJBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=22.8599, expected range: 0.0000 10.5842
ADS-C WIND VECTOR DIFF (M/S) 44C0KKRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.9360, expected range: 0.0000 15.5545
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 68392 : out of range
32 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=528.3482, expected range: -1816.2116 1046.3871
Severely_persistent: rms_fgdepar=529.5249, expected range: 0.0000 1508.5086
Severely_persistent: avg_pge=0.8762, expected range: -0.5603 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42704 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8096, expected range: -1.1920 0.7500
BUFR LAND SYNOP RH2M (%) _170B147 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-50.5785, expected range: -125.1555 62.8839
BUFR LAND SYNOP RH2M (%) _170B147 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=50.5785, expected range: 0.0000 125.1555
BUFR LAND SYNOP RH2M (%) _170B147 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9997, expected range: -1.7669 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71588 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=510.4833, expected range: 391.3289 568.9846
AUTOMATIC LAND SYNOP RH2M (%) 68493 : out of range
Severe: rms_fgdepar=36.2851, expected range: 0.0000 20.4452
MANUAL LAND SYNOP RH2M (%) 67531 : out of range
Severe: avg_pge=0.9964, expected range: -0.2516 0.3234
MANUAL LAND SYNOP RH2M (%) 67551 : out of range
Severe: rms_fgdepar=39.9848, expected range: 0.0000 23.2728
Severe: avg_pge=0.8540, expected range: -0.0014 0.0101
MANUAL LAND SYNOP RH2M (%) 42654 : out of range
Severe: rms_fgdepar=31.6426, expected range: 0.0000 14.8383
MANUAL LAND SYNOP RH2M (%) 64285 : out of range
Severe: rms_fgdepar=49.2191, expected range: -21.8461 31.1934
Severe: avg_pge=0.9981, expected range: -0.1068 0.1320
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 60690 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8889, expected range: -1.2232 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 87022 : out of range
Severe: avg_fgdepar=-692.9645, expected range: -184.5036 210.3818
Severe: rms_fgdepar=692.9645, expected range: 0.0000 209.6072
Severe: avg_pge=0.8099, expected range: -0.2778 0.4021
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 62124 : out of range
Severe: avg_fgdepar=-924.8749, expected range: -83.9813 87.7350
Severe: rms_fgdepar=924.8749, expected range: 0.0000 57.5071
Severe: avg_pge=0.9368, expected range: 0.0000 0.0000
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 60355 : out of range
Severe: avg_pge=0.8704, expected range: -0.5426 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 37395 : out of range
Severe: rms_fgdepar=576.4515, expected range: 0.0000 251.8202
BUFR LAND SYNOP RH2M (%) 60120 : out of range
Severe: rms_fgdepar=42.9203, expected range: 0.0000 29.8185
Severe: avg_pge=0.8789, expected range: -0.0315 0.0453
BUFR LAND SYNOP RH2M (%) 64040 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-51.9684, expected range: -65.1793 -30.7535
Severe: rms_fgdepar=51.9684, expected range: 30.7535 65.1793
BUFR LAND SYNOP RH2M (%) 71351 : out of range
Severe: rms_fgdepar=33.8098, expected range: 0.0000 9.2483
BUFR LAND SYNOP RH2M (%) 15118 : out of range
Severe: avg_fgdepar=57.8170, expected range: -35.9594 56.9879
Severe: rms_fgdepar=57.8535, expected range: 0.0000 56.7264
Severe: avg_pge=0.9645, expected range: -0.0588 0.0758
BUFR LAND SYNOP RH2M (%) 40439 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=36.0022, expected range: 0.0000 31.2376
Severe: avg_pge=0.9970, expected range: -1.4768 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 04190 : out of range
Severe: rms_fgdepar=334.2216, expected range: 0.0000 330.6585
Severe: avg_pge=0.8181, expected range: -1.1250 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48991 : out of range
Severe: rms_fgdepar=475.5101, expected range: 0.0000 232.4849
Severe: avg_pge=0.8023, expected range: -0.7250 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 01203 : out of range
Severe: rms_fgdepar=316.8120, expected range: 0.0000 216.8932
Severe: avg_pge=0.8264, expected range: -0.6807 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48053 : out of range
Severe: rms_fgdepar=435.5268, expected range: 0.0000 171.1766
BUFR LAND SYNOP SURFACE PRESSURE (PA) 22165 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=310.0756, expected range: 0.0000 83.9391
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48375 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=334.6613, expected range: 0.0000 167.8251
BUFR LAND SYNOP SURFACE PRESSURE (PA) 13459 : out of range
Severe: avg_fgdepar=-917.8550, expected range: -129.8906 199.3695
Severe: rms_fgdepar=917.9953, expected range: 0.0000 175.9604
Severe: avg_pge=0.9380, expected range: -0.4745 0.6655
ship
AUTOMATIC SHIP SURFACE PRESSURE (PA) 63059 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=790.4838, expected range: -1735.4694 1423.6622
Severely_persistent: rms_fgdepar=794.9299, expected range: 0.0000 1523.9388
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRLJ4 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=804.3254, expected range: 115.6332 2031.0268
Severely_persistent: rms_fgdepar=804.3254, expected range: 134.7356 2039.7789
Severely_persistent: avg_pge=0.8663, expected range: 0.4297 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VABC : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=628.7617, expected range: -1771.2332 2494.3814
Severely_persistent: rms_fgdepar=635.9344, expected range: 0.0000 1836.3858
Severely_persistent: avg_pge=0.8298, expected range: -0.9759 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) YBBQ2 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8184, expected range: 0.4913 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7ZZ6 : out of range
Severe: rms_fgdepar=686.5744, expected range: 0.0000 220.5267
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRPY7 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=759.0706, expected range: 36.4503 605.8861
Severe: rms_fgdepar=759.0706, expected range: 36.2748 606.3941
Severe: avg_pge=0.8613, expected range: 0.0593 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) A8ZU8 : out of range
Severe: avg_fgdepar=-642.9193, expected range: -318.3682 457.7923
Severe: rms_fgdepar=642.9193, expected range: 0.0000 443.5950
Severe: avg_pge=0.8626, expected range: -0.9215 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) MAOR9 : out of range
Severe: avg_fgdepar=-680.6983, expected range: -985.4973 1086.9031
Severe: rms_fgdepar=965.2625, expected range: 0.0000 861.6886
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 2ICI2 : out of range
Severe: rms_fgdepar=17.1571, expected range: 0.0000 7.1442
Severe: avg_pge=0.9040, expected range: -0.8554 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 5401581 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=521.2639, expected range: -1002.6841 689.9535
Severely_persistent: rms_fgdepar=524.2864, expected range: 0.0000 744.5054
Severely_persistent: avg_pge=0.8883, expected range: -1.0486 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 3201777 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=407.4421, expected range: 0.0000 319.8103
Severe: avg_pge=0.8696, expected range: -1.0288 0.7500
metar
METAR SURFACE PRESSURE (PA) SBAF : out of range
Severe: rms_fgdepar=312.8654, expected range: 0.0000 162.0948
snow
BUFR LAND SYNOP SNOW (CM) _MF1EB15 : out of range
36 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-778.2352, expected range: -807.4194 -747.8648
BUFR LAND SYNOP SNOW (CM) _MF1EB15 : out of range
36 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=778.2356, expected range: 748.4241 807.0196
BUFR LAND SYNOP SNOW (CM) _MF12FF7 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=50.0909, expected range: 30.4342 56.2461
BUFR LAND SYNOP SNOW (CM) _MF12FF7 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=50.1280, expected range: 36.1547 54.6819
t2m
BUFR LAND SYNOP 2M TEMPERATURE (K) _1701F9F : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=19.2701, expected range: -9.7691 20.9385
BUFR LAND SYNOP 2M TEMPERATURE (K) _1701F9F : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=19.2701, expected range: 0.3128 18.4247
BUFR LAND SYNOP 2M TEMPERATURE (K) _1701F9F : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8032, expected range: -0.1303 0.9461
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 60147 : out of range
Severe: avg_fgdepar=12.0531, expected range: 3.8026 12.4720
Severe: rms_fgdepar=12.1282, expected range: 4.3851 12.3555
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=12.6589, expected range: 5.5046 13.8642
METAR 2M TEMPERATURE (K) MMMV : out of range
Severe: avg_fgdepar=-16.1927, expected range: -4.4916 4.8725
Severe: rms_fgdepar=16.1927, expected range: 0.0000 6.5616
BUFR LAND SYNOP 2M TEMPERATURE (K) 68593 : out of range
Severe: avg_fgdepar=-12.7283, expected range: -11.2339 4.1186
Severe: rms_fgdepar=12.7283, expected range: 0.0000 10.0170
BUFR LAND SYNOP 2M TEMPERATURE (K) 60147 : out of range
Severe: avg_fgdepar=12.0031, expected range: 3.7526 12.4220
Severe: rms_fgdepar=12.0785, expected range: 4.3388 12.3048
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=-12.4066, expected range: -13.9775 -5.2537
Severe: rms_fgdepar=12.9841, expected range: 5.5206 13.9528
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 11153 : out of range
Severe: rms_fgdepar=35.5359, expected range: 0.0000 14.1321
MANUAL LAND SYNOP RH2M (%) 62124 : out of range
Severe: rms_fgdepar=30.8245, expected range: 0.0000 15.4534