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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-06-25 00:00

amsua
METOP-B AMSUA ALL SKY RADIANCES CHANNEL 13 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1357, expected range: 0.1615 0.1828
METOP-C AMSUA ALL SKY RADIANCES CHANNEL 12 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.6068, expected range: -0.5519 -0.4830
METOP-C AMSUA ALL SKY RADIANCES CHANNEL 13 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.4127, expected range: -0.3521 -0.3069
Atmospheric Motion Vector
All AQUA MODIS CLEAR WV ALL LAYERS Global : all data missing
Severe: obs_number=0, expected range: 145.92 790.02
GOES-17 AMV IR1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HPA) : out of range
Slight: avg_fgdepar=1.2592, expected range: 1.6600 2.3467
Geostationary CSR
HIMAWARI-8 AHI RADIANCES CHANNEL 3 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1679, expected range: 0.0057 0.0597
Radiosondes
LAND TEMP Q (G/KG) 38341 PRESSURE LAYER 900-1200 (HPA) : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=6.1079, expected range: -1.2013 11.4622
Severely_persistent: rms_fgdepar=6.1978, expected range: 0.0000 11.5858
LAND TEMP Q (G/KG) 41024 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.1445, expected range: 0.0000 1.2015
LAND TEMP Q (G/KG) 83525 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-6.0817, expected range: -8.4154 11.1574
Severe: rms_fgdepar=6.0817, expected range: -8.2695 11.0668
LAND TEMP Q (G/KG) 26075 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.6848, expected range: 0.0000 2.0717
LAND TEMP Q (G/KG) 42647 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=-6.2133, expected range: -6.3028 2.3880
Severe: rms_fgdepar=6.3060, expected range: 0.0000 6.6230
LAND TEMP Q (G/KG) 72747 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=4.2463, expected range: 0.0000 2.3822
LAND TEMP WIND VECTOR DIFF (M/S) 25403 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=20.3398, expected range: 0.5796 3.7528
Severe: rms_fgdepar=21.5386, expected range: 0.5483 4.6130
Severe: avg_pge=0.8108, expected range: -0.1029 0.1656
LAND TEMP WIND VECTOR DIFF (M/S) 34882 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=15.3540, expected range: 0.0000 5.9336
All LAND TEMP ALL LAYERS WMO BLOCK 71 : all data missing
Severe: obs_number=0, expected range: 11.69 222.64
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 24 : all data missing
Severe: obs_number=0, expected range: 110.99 164.56
LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
Considerable: rms_fgdepar=3.0719, expected range: 0.8039 2.2524
amdar
AMDAR WIND VECTOR DIFF (M/S) THT7 PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=20.0573, expected range: -10.1729 17.6794
Severe: rms_fgdepar=20.2225, expected range: 0.0000 27.7465
Severe: avg_pge=0.8271, expected range: -0.7380 0.7500
MODE-S WIND VECTOR DIFF (M/S) M28EC14 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=19.5036, expected range: 0.0000 5.8970
ADS-C WIND VECTOR DIFF (M/S) 3VOI01BA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.8870, expected range: 0.0000 7.5875
ADS-C WIND VECTOR DIFF (M/S) I0X2MLBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.4099, expected range: 0.0000 8.0889
ADS-C WIND VECTOR DIFF (M/S) TWRTPMBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.2022, expected range: 0.0000 11.6179
ADS-C WIND VECTOR DIFF (M/S) RM1RSWJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.7243, expected range: 0.0000 7.3048
ADS-C WIND VECTOR DIFF (M/S) LBNQYFKA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.4191, expected range: 0.0000 6.8969
ADS-C WIND VECTOR DIFF (M/S) RJRAYBRA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=20.5252, expected range: 0.1824 9.3464
ADS-C WIND VECTOR DIFF (M/S) WSDQOORA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.8348, expected range: 0.1138 8.3854
ADS-C WIND VECTOR DIFF (M/S) IEYF5URA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=20.1622, expected range: 0.0000 36.8918
ADS-C WIND VECTOR DIFF (M/S) VE5EIJZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.1908, expected range: 0.0000 9.5994
ADS-C WIND VECTOR DIFF (M/S) MQU0RQZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.7889, expected range: 0.0000 6.7563
ADS-C WIND VECTOR DIFF (M/S) VHXTWMBQ PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.9686, expected range: 0.7008 6.4333
airep
AIREP WIND VECTOR DIFF (M/S) AAL86 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.7350, expected range: 0.0000 8.7668
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : missing
2 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 0.0000 633.9047
synop
MANUAL LAND SYNOP RH2M (%) 62120 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8296, expected range: -0.5072 0.5883
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41573 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=944.3286, expected range: 617.0915 1100.6128
Severely_persistent: rms_fgdepar=945.9581, expected range: 617.2776 1104.5987
AUTOMATIC LAND SYNOP RH2M (%) 68821 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=55.1650, expected range: -28.8417 50.0411
Severe: rms_fgdepar=55.1650, expected range: 0.0000 47.8839
Severe: avg_pge=0.8667, expected range: -1.3327 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 68918 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8929, expected range: -0.4523 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 86210 : out of range
Severe: avg_pge=0.8145, expected range: -1.2354 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 94121 : out of range
Severe: rms_fgdepar=404.8285, expected range: 0.0000 70.2747
Severe: avg_pge=0.8638, expected range: 0.0000 0.0000
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 61995 : out of range
Severe: avg_fgdepar=-933.6274, expected range: 1.9917 151.1042
Severe: rms_fgdepar=933.6274, expected range: 1.9917 151.1042
Severe: avg_pge=0.9355, expected range: -0.6268 0.7500
BUFR LAND SYNOP RH2M (%) : out of range
3 times in the last 10 days for at least one item
Severe: obs_number=99.0000, expected range: 4.0918 8.3082
BUFR LAND SYNOP RH2M (%) 76040 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9982, expected range: -1.2297 0.7500
BUFR LAND SYNOP RH2M (%) 72617 : out of range
Severe: avg_pge=0.9712, expected range: -0.4932 0.5871
BUFR LAND SYNOP RH2M (%) 72567 : out of range
Severe: rms_fgdepar=40.9140, expected range: 0.0000 19.3790
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94121 : out of range
Severe: rms_fgdepar=375.5634, expected range: 0.0000 149.4658
Severe: avg_pge=0.8533, expected range: 0.0000 0.0000
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24843 : out of range
Severe: rms_fgdepar=583.5334, expected range: 0.0000 84.5568
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71476 : out of range
Severe: avg_pge=0.8208, expected range: 0.3980 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 42077 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8051, expected range: -1.5913 0.7500
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9HA3182 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8766, expected range: 0.4784 0.7500
All BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) WMO BLOCK 8 : all data missing
Severely_persistent: obs_number=0, expected range: 39.34 343.71
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9VPY4 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=890.9908, expected range: 37.4598 1464.7221
Severely_persistent: rms_fgdepar=890.9908, expected range: 37.2194 1465.0277
Severely_persistent: avg_pge=0.8868, expected range: 0.6413 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HA4777 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=646.5571, expected range: 85.0809 1116.4667
Severely_persistent: rms_fgdepar=646.5571, expected range: 85.0809 1116.4667
BUFR SHIP SYNOP SURFACE PRESSURE (PA) ZCHC8 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=709.1851, expected range: 86.2529 835.8063
Severely_persistent: rms_fgdepar=750.4380, expected range: 86.2529 835.8063
Severely_persistent: avg_pge=0.8391, expected range: 0.4560 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3FSA9 : out of range
35 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-550.8234, expected range: -795.6147 -283.5803
Severely_persistent: rms_fgdepar=550.8234, expected range: 285.0260 795.2721
All BUFR SHIP SYNOP WMO BLOCK 45 : all data missing
Severely_persistent: obs_number=0, expected range: 226.10 243.90
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V3581 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=637.1368, expected range: -799.6093 1250.9501
Severe: rms_fgdepar=637.1368, expected range: 0.0000 1251.0990
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6OA3 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=420.4043, expected range: 0.0000 180.8157
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 2200192 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8953, expected range: 0.3062 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6501671 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=516.1503, expected range: -1078.5585 1118.5155
Severely_persistent: rms_fgdepar=516.1503, expected range: 0.0000 965.8820
Severely_persistent: avg_pge=0.8857, expected range: -1.2232 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5401774 : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8456, expected range: -1.5191 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 3301575 : out of range
Severe: rms_fgdepar=421.6820, expected range: 0.0000 196.7818
Severe: avg_pge=0.8073, expected range: -0.2911 0.3389
metar
AUTOMATIC METAR SURFACE PRESSURE (PA) KIWA : out of range
Severe: rms_fgdepar=316.7601, expected range: 0.0000 86.8286
snow
BUFR LAND SYNOP SNOW (CM) _MI1BC83 : out of range
30 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=52.2500, expected range: 41.7793 65.9475
BUFR LAND SYNOP SNOW (CM) _MI1BC83 : out of range
30 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=53.6866, expected range: 43.5723 66.0074
BUFR LAND SYNOP SNOW (CM) _MF1EB15 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-775.5520, expected range: -773.0464 -772.5003
BUFR LAND SYNOP SNOW (CM) _MF1EB15 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=775.5520, expected range: 772.5006 773.0463
BUFR LAND SYNOP SNOW (CM) _MI11588 : out of range
25 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=60.0909, expected range: 37.3166 65.7394
BUFR LAND SYNOP SNOW (CM) _MI11588 : out of range
25 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=60.5835, expected range: 38.6280 65.3198
BUFR LAND SYNOP SNOW (CM) _MI1067E : out of range
34 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=62.9839, expected range: 54.6467 64.1125
BUFR LAND SYNOP SNOW (CM) _MI1067E : out of range
34 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=63.6661, expected range: 55.7242 64.0663
t2m
METAR 2M TEMPERATURE (K) VECX : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=12.9241, expected range: 5.9459 15.2055
Severely_persistent: rms_fgdepar=13.1598, expected range: 5.8664 15.5070
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-17.6088, expected range: -20.0442 -17.0541
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=17.6226, expected range: 17.1202 20.0190
MANUAL LAND SYNOP 2M TEMPERATURE (K) 68424 : out of range
Severe: avg_fgdepar=12.4602, expected range: -4.0409 4.2740
Severe: rms_fgdepar=12.4602, expected range: 0.0000 5.3616
METAR 2M TEMPERATURE (K) MRLM : out of range
Severe: rms_fgdepar=10.4222, expected range: 0.5727 3.6586
LAND TEMP 2M TEMPERATURE (K) 68424 : out of range
Severe: avg_fgdepar=12.1602, expected range: -5.1240 3.4166
Severe: rms_fgdepar=12.1602, expected range: -3.1970 5.0599
BUFR LAND SYNOP 2M TEMPERATURE (K) 68424 : out of range
Severe: avg_fgdepar=12.3729, expected range: -4.1030 4.2062
Severe: rms_fgdepar=12.3729, expected range: 0.0000 5.3023