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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-10-05 00:00

iasi
METOP-C IASI RADIANCES (109 channels affected) : out of range
Slight: obs_number=20889.0000, expected range: 22726.2040 23162.0460
airs
AQUA AIRS RADIANCES (63 channels affected) : out of range
Slight: obs_number=2200.0000, expected range: 2724.4623 3409.6627
mhs
METOP-C MHS ALLSKY RADIANCES CHANNEL 4 : out of range
Considerable: obs_number=41564.0000, expected range: 44979.3982 47675.4768
METOP-C MHS ALLSKY RADIANCES CHANNEL 3 : out of range
Slight: obs_number=43400.0000, expected range: 46335.3666 50527.5084
METOP-C MHS ALLSKY RADIANCES CHANNEL 5 : out of range
Slight: obs_number=25974.0000, expected range: 27220.5267 30080.2233
gpsro
All TERRASAR-X GPSRO SETTING ALL HEIGHTS Global : all data missing
Severe: obs_number=0, expected range: 128.89 879.46
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1-2 (HPA) : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-0.0129, expected range: -0.0078 -0.0031
Severely_persistent: avg_fgdepar=-0.0697, expected range: -0.0238 0.0126
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 10-11 (HPA) : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-0.0517, expected range: -0.0468 -0.0460
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: avg_biascorr=-0.7826, expected range: -0.9615 -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=-3.7706, expected range: -3.3301 -3.3301
Radiosondes
LAND TEMP TEMPERATURE (K) 60715 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_fgdepar=-9.2662, expected range: -2.3713 2.7146
Severe: rms_fgdepar=9.2747, expected range: 0.0000 2.6694
Severe: avg_pge=0.9098, expected range: -0.2102 0.3428
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=4.6486, expected range: 1.2175 2.7946
LAND TEMP Q (G/KG) 32618 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.3764, expected range: 0.0000 1.1868
All LAND TEMP ALL LAYERS WMO BLOCK 82 : all data missing
Severe: obs_number=0, expected range: 164.34 350.66
All LAND TEMP ALL LAYERS WMO BLOCK 83 : all data missing
Severe: obs_number=0, expected range: 168.86 369.14
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=5.6257, expected range: 0.5547 1.3035
Severe: rms_fgdepar=3.7208, expected range: 0.8196 1.2844
HIGH RESO LAND TEMP TEMPERATURE (K) 53772 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=6.3314, expected range: 0.0000 3.0150
HIGH RESO LAND TEMP TEMPERATURE (K) 91948 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=19.3267, expected range: -0.7294 0.5048
Severe: avg_pge=0.9009, expected range: -0.0213 0.0325
HIGH RESO LAND TEMP TEMPERATURE (K) 91948 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=19.3943, expected range: 0.3954 1.1368
HIGH RESO LAND TEMP TEMPERATURE (K) 60715 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=8.7296, expected range: 0.0000 6.6274
Severe: avg_pge=0.8895, expected range: -1.2813 0.7500
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=4.5677, expected range: 0.0000 2.2963
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (3 pressure layers affected : out of range
Severe: obs_number=182.0000, expected range: 84.5239 96.4761
HIGH RESO LAND TEMP Q (G/KG) 10618 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.3117, expected range: 0.0000 1.0948
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 40 : all data missing
Severe: obs_number=0, expected range: 66.07 116.43
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (2 pressure layers affected : out of range
Considerable: obs_number=569.0000, expected range: 655.3096 676.6904
amdar
WIGOS AMDAR TEMPERATURE (K) CNNKXR PRESSURE LAYER 300-600 (HPA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-11.4333, expected range: -14.1056 -0.9368
Severely_persistent: rms_fgdepar=11.4432, expected range: 0.6599 15.6505
Severely_persistent: avg_pge=0.9050, expected range: 0.6573 0.7500
WIGOS AMDAR Q (G/KG) DVPUOFZA PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8805, expected range: -0.8930 0.7500
WIGOS AMDAR TEMPERATURE (K) EU0850 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=9.8009, expected range: -0.7054 0.9266
Severe: rms_fgdepar=9.8014, expected range: 0.0000 1.3321
Severe: avg_pge=0.8840, expected range: -0.0768 0.0938
WIGOS AMDAR TEMPERATURE (K) CNSTRP PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_pge=0.8447, expected range: 0.4862 0.7500
WIGOS AMDAR TEMPERATURE (K) CNQQNR PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_fgdepar=-9.8610, expected range: -20.3224 3.9217
Severe: rms_fgdepar=9.9593, expected range: 0.0000 20.3560
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 68392 : out of range
26 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=775.0116, expected range: -1790.5327 1095.2060
Severely_persistent: rms_fgdepar=775.7185, expected range: 0.0000 1445.7101
Severely_persistent: avg_pge=0.9300, expected range: -0.5383 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 62305 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=263.9418, expected range: 0.0000 257.1000
Severely_persistent: avg_pge=0.8148, expected range: -1.0503 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 36736 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8076, expected range: -0.4559 0.7500
MANUAL LAND SYNOP RH2M (%) 38750 : out of range
Severe: rms_fgdepar=36.4239, expected range: 0.0000 12.7364
MANUAL LAND SYNOP RH2M (%) 67751 : out of range
Severe: avg_fgdepar=53.3652, expected range: -20.3695 27.6296
Severe: rms_fgdepar=53.3652, expected range: -18.7201 26.5439
Severe: avg_pge=0.9999, expected range: -0.0027 0.0090
MANUAL LAND SYNOP RH2M (%) 94463 : out of range
Severe: rms_fgdepar=33.3504, expected range: 0.0000 13.0241
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 96011 : out of range
Severe: rms_fgdepar=612.4306, expected range: 0.0000 105.7380
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 47055 : out of range
Severe: rms_fgdepar=313.2602, expected range: 0.0000 160.4128
BUFR LAND SYNOP RH2M (%) 76122 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=53.7072, expected range: -11.5397 69.3093
Severe: rms_fgdepar=53.7072, expected range: 0.0000 69.3093
Severe: avg_pge=0.8688, expected range: -1.6363 0.7500
BUFR LAND SYNOP RH2M (%) 94463 : out of range
Severe: rms_fgdepar=38.3032, expected range: 0.0000 25.2675
Severe: avg_pge=0.8469, expected range: -0.0038 0.0106
BUFR LAND SYNOP RH2M (%) 06785 : out of range
Severe: rms_fgdepar=43.2618, expected range: 0.0000 24.2438
Severe: avg_pge=0.8872, expected range: -0.0014 0.0082
BUFR LAND SYNOP RH2M (%) 34186 : out of range
Severe: rms_fgdepar=34.7457, expected range: 0.0000 18.4745
BUFR LAND SYNOP RH2M (%) 67586 : out of range
Severe: rms_fgdepar=38.9585, expected range: 0.0000 16.4864
Severe: avg_pge=0.9735, expected range: -0.0020 0.0086
BUFR LAND SYNOP RH2M (%) 06617 : out of range
Severe: rms_fgdepar=30.4835, expected range: 0.3365 7.7348
BUFR LAND SYNOP RH2M (%) 11008 : out of range
Severe: rms_fgdepar=30.2388, expected range: 0.0000 17.1436
BUFR LAND SYNOP SURFACE PRESSURE (PA) 13602 : out of range
Severe: avg_fgdepar=-578.4495, expected range: -123.6951 205.7784
Severe: rms_fgdepar=578.4495, expected range: 0.0000 205.7784
Severe: avg_pge=0.9011, expected range: -0.1056 0.1244
BUFR LAND SYNOP SURFACE PRESSURE (PA) 62403 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8423, expected range: -1.3711 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 25703 : out of range
Severe: rms_fgdepar=300.6560, expected range: 0.0000 149.2246
BUFR LAND SYNOP SURFACE PRESSURE (PA) 13493 : out of range
Severe: rms_fgdepar=316.6870, expected range: 0.0000 153.3962
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48374 : out of range
Severe: rms_fgdepar=405.1923, expected range: 0.0000 128.9137
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41965 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=428.4124, expected range: 0.0000 288.3811
Severe: avg_pge=0.8837, expected range: -0.8785 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 13629 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8115, expected range: -1.0556 0.7500
ship
AUTOMATIC SHIP SURFACE PRESSURE (PA) 63059 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=509.3085, expected range: -1615.1084 1261.1572
Severely_persistent: rms_fgdepar=540.2401, expected range: 0.0000 1539.0923
Severely_persistent: avg_pge=0.8648, expected range: -1.5837 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) YBBQ2 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=785.8636, expected range: 446.6563 1012.6444
Severely_persistent: rms_fgdepar=799.2249, expected range: 441.7430 1022.8718
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9VPQ7 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=574.3788, expected range: 129.3305 889.7306
Severely_persistent: rms_fgdepar=574.3788, expected range: 129.3305 889.7306
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRLJ4 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=599.6808, expected range: -636.5458 2670.0822
Severe: rms_fgdepar=599.6808, expected range: 0.0000 2694.5993
Severe: avg_pge=0.8246, expected range: 0.4297 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7IU6 : out of range
Severe: rms_fgdepar=449.2476, expected range: 0.0000 221.9375
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) ELDMMXN : out of range
Severe: avg_fgdepar=29.8488, expected range: 0.6512 5.0762
Severe: rms_fgdepar=31.3869, expected range: 0.2914 5.7637
Severe: avg_pge=0.9322, expected range: -0.3356 0.7500
metar
METAR SURFACE PRESSURE (PA) SVBC : out of range
Severe: rms_fgdepar=383.1768, expected range: 0.0000 182.4968
METAR SURFACE PRESSURE (PA) BIVM : out of range
Severe: avg_fgdepar=942.8045, expected range: -145.1659 186.8303
Severe: rms_fgdepar=942.8045, expected range: 0.0000 165.3257
Severe: avg_pge=0.8898, expected range: -0.0084 0.0099
METAR SURFACE PRESSURE (PA) HSFS : out of range
Severe: rms_fgdepar=334.5647, expected range: 0.0000 185.5892
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=-775.8728, expected range: -796.6775 -760.9213
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=776.0644, expected range: 761.3724 796.3743
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71052 : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.3190, expected range: -18.4420 -5.2609
Severely_persistent: rms_fgdepar=13.3297, expected range: 5.0889 18.9621
BUFR LAND SYNOP 2M TEMPERATURE (K) 71052 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.2625, expected range: -18.8147 -5.2827
Severely_persistent: rms_fgdepar=13.2717, expected range: 5.1646 19.2363
BUFR LAND SYNOP 2M TEMPERATURE (K) _1701F9F : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=12.7179, expected range: 0.3252 18.5332
MANUAL LAND SYNOP 2M TEMPERATURE (K) 71965 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=13.9658, expected range: -1.4555 13.9697
Severe: rms_fgdepar=14.0696, expected range: 0.0000 13.6467
BUFR LAND SYNOP 2M TEMPERATURE (K) 71965 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=13.9984, expected range: -1.3662 13.9800
Severe: rms_fgdepar=14.0702, expected range: 0.0000 13.5371
BUFR LAND SYNOP 2M TEMPERATURE (K) _MF1174E : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.5856, expected range: 0.4026 2.5398
rh2m
MANUAL LAND SYNOP RH2M (%) 67586 : out of range
Severe: rms_fgdepar=39.9654, expected range: 0.0000 18.8256
METAR RH2M (%) ZGHA : out of range
Severe: rms_fgdepar=33.2417, expected range: 0.9224 16.8438