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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-08-07 12:00

cris
All NPP CRIS ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 14971.98 15886.47
atms
All NPP ATMS ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 11528.30 13974.28
gpsro
COSMIC2-E2 GPSRO RISING HEIGHT 6-8 KM : out of range
Slight: avg_norm_fgdepar=0.0321, expected range: -0.1028 0.0035
Slight: stdev_norm_fgdepar=1.0594, expected range: 0.7569 0.9695
Atmospheric Motion Vector
All AQUA MODIS CLEAR WV ALL LAYERS Global : all data missing
Severely_persistent: obs_number=0, expected range: 113.66 1091.78
All NPP VIIRS AMV IR ALL LAYERS Global : all data missing
Severely_persistent: obs_number=0, expected range: 94.30 1474.05
Radiosondes
LAND TEMP Q (G/KG) 38341 (2 pressure layers affected) : out of range
Severe: avg_fgdepar=6.0617, expected range: -2.3193 8.4416
Severe: rms_fgdepar=7.0266, expected range: 0.0000 9.3347
LAND TEMP Q (G/KG) 44373 PRESSURE LAYER 600-900 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-7.5538, expected range: -4.6568 4.2172
Severe: rms_fgdepar=7.5538, expected range: 0.0000 5.9291
LAND TEMP TEMPERATURE (K) 83554 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=6.0101, expected range: 0.4948 1.7501
All LAND TEMP ALL LAYERS WMO BLOCK 98 : all data missing
Severe: obs_number=0, expected range: 98.40 359.35
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : missing
1 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 0.0000 390.7380
HIGH RESO LAND TEMP Q (G/KG) 91165 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=2.3551, expected range: 0.0000 0.7706
HIGH RESO LAND TEMP Q (G/KG) 08190 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.0009, expected range: 0.0000 7.2811
HIGH RESO LAND TEMP Q (G/KG) 58725 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=5.0409, expected range: 0.5556 2.7896
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 24 : all data missing
Severe: obs_number=0, expected range: 120.38 150.62
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 83 : all data missing
Severe: obs_number=0, expected range: 37.07 135.93
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Considerable: rms_fgdepar=1.4679, expected range: 0.2673 0.9842
HIGH RESO LAND TEMP TEMPERATURE (K) (4 pressure layers affected) : out of range
Considerable: obs_number=105.0000, expected range: 257.0716 292.9284
amdar
WIGOS AMDAR Q (G/KG) BSTXQVBA PRESSURE LAYER 900-1200 (HPA) : out of range
27 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-6.4930, expected range: -12.0368 0.8011
Severely_persistent: rms_fgdepar=6.5472, expected range: 0.2265 11.9817
TAMDAR WIND VECTOR DIFF (M/S) 00005178 PRESSURE LAYER 0-300 (HPA) : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=22.3084, expected range: -0.2840 32.3285
Severe: rms_fgdepar=22.6790, expected range: 0.0000 32.4568
ADS-C WIND VECTOR DIFF (M/S) UDSWVIBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=18.5859, expected range: 1.3387 5.4394
ADS-C WIND VECTOR DIFF (M/S) J1QUOUJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=22.2784, expected range: 0.0000 15.7555
airep
AIREP WIND VECTOR DIFF (M/S) ACA862 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.9036, expected range: 0.0000 6.1187
AIREP WIND VECTOR DIFF (M/S) ANZ6 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=26.9711, expected range: 0.5425 4.9706
Severe: rms_fgdepar=37.2690, expected range: 0.2478 6.2150
AIREP WIND VECTOR DIFF (M/S) BAW48Q PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.0548, expected range: 0.0000 7.7373
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 17952 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8281, expected range: -1.6182 0.7500
MANUAL LAND SYNOP RH2M (%) 66285 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8676, expected range: -0.8794 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71387 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8114, expected range: 0.6364 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 43097 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=1103.4001, expected range: -2023.7165 2584.1338
Severely_persistent: rms_fgdepar=1103.4001, expected range: -2023.7165 2584.1338
Severely_persistent: avg_pge=0.9385, expected range: -2.0934 0.7500
MANUAL LAND SYNOP RH2M (%) 83319 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9822, expected range: -1.1757 0.7500
MANUAL LAND SYNOP RH2M (%) 15549 : out of range
Severe: rms_fgdepar=31.4917, expected range: 0.0000 16.8456
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 78663 : out of range
Severe: avg_fgdepar=594.9267, expected range: -314.1290 478.7416
Severe: rms_fgdepar=730.8951, expected range: 0.0000 319.2898
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83377 : out of range
Severe: rms_fgdepar=454.0352, expected range: 0.0000 112.2473
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
Severe: rms_fgdepar=169.6401, expected range: 47.4007 96.2851
BUFR LAND SYNOP RH2M (%) 27643 : out of range
Severe: rms_fgdepar=33.9422, expected range: 0.0000 15.3380
BUFR LAND SYNOP RH2M (%) 27347 : out of range
Severe: rms_fgdepar=31.4871, expected range: 0.0000 16.8238
BUFR LAND SYNOP RH2M (%) 41888 : out of range
Severe: avg_pge=0.9889, expected range: -0.0169 0.0262
BUFR LAND SYNOP SURFACE PRESSURE (PA) 93800 : out of range
Severe: rms_fgdepar=304.3144, expected range: 0.0000 123.4528
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41571 : out of range
Severe: avg_fgdepar=556.6332, expected range: -139.2877 266.3184
Severe: rms_fgdepar=748.4074, expected range: 0.0000 267.0617
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48064 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8040, expected range: -0.1260 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 26258 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-502.8315, expected range: -45.1481 71.9415
Severe: rms_fgdepar=503.1193, expected range: 0.0000 62.5827
Severe: avg_pge=0.9032, expected range: 0.0000 0.0000
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71588 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=502.9357, expected range: 395.0241 539.0153
BUFR LAND SYNOP Z (M) 07591 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9686, expected range: -0.8428 0.7500
ship
SHIP SURFACE PRESSURE (PA) WTEK : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-694.4467, expected range: -1314.0486 963.5366
Severely_persistent: rms_fgdepar=694.4467, expected range: 0.0000 1145.3766
Severely_persistent: avg_pge=0.9081, expected range: -1.2661 0.7500
ABBREVIATED SHIP SURFACE PRESSURE (PA) WTEK : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-622.3984, expected range: -1246.9639 945.8984
Severely_persistent: rms_fgdepar=624.8112, expected range: 0.0000 1008.4525
Severely_persistent: avg_pge=0.8964, expected range: -0.8520 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) A8PQ4 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=765.4117, expected range: -500.5035 1111.8399
Severely_persistent: rms_fgdepar=765.4117, expected range: 0.0000 1111.7320
Severely_persistent: avg_pge=0.8647, expected range: -0.6906 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) D5VT5 : out of range
31 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=1052.0486, expected range: -707.8023 2113.8116
Severely_persistent: rms_fgdepar=1052.0486, expected range: 0.0000 1993.0278
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6NR7 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=706.1002, expected range: -855.7863 892.0693
Severely_persistent: rms_fgdepar=706.6218, expected range: -560.5697 793.3078
Severely_persistent: avg_pge=0.9203, expected range: -1.0827 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9VKU8 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=1005.8064, expected range: 660.8562 1261.0971
Severely_persistent: rms_fgdepar=1005.8064, expected range: 661.9438 1260.6855
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRNU9 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=1064.6174, expected range: 897.0545 1439.9027
Severely_persistent: rms_fgdepar=1065.6281, expected range: 902.3527 1436.2084
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VRCF6 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8991, expected range: 0.2944 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) ELDMMXN : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=23.6389, expected range: -14.6849 23.9248
Severely_persistent: rms_fgdepar=23.6389, expected range: 0.0000 23.6504
Severely_persistent: avg_pge=0.9350, expected range: -0.9667 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6BQ4 : out of range
Severe: rms_fgdepar=493.8363, expected range: 0.0000 264.4740
BUFR SHIP SYNOP SURFACE PRESSURE (PA) TBWUK47 : out of range
Severe: rms_fgdepar=335.6907, expected range: 0.0000 114.6388
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6WN8 : out of range
Severe: avg_fgdepar=-719.6693, expected range: -369.8713 58.7409
Severe: rms_fgdepar=719.6693, expected range: 0.0000 369.8713
Severe: avg_pge=0.8780, expected range: -0.5980 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VEAB : out of range
Severe: avg_fgdepar=-717.0728, expected range: -1351.2425 -450.4153
Severe: rms_fgdepar=717.0728, expected range: 450.4153 1351.2425
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WPTC : out of range
Severe: rms_fgdepar=429.8339, expected range: 0.0000 82.0636
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VRBL4 : out of range
Severe: avg_fgdepar=25.4320, expected range: -10.4859 35.3833
Severe: rms_fgdepar=25.4320, expected range: 0.0000 36.2464
Severe: avg_pge=0.9253, expected range: 0.2925 0.7500
buoy
DRIBU WIND VECTOR DIFF (M/S) 23451 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8953, expected range: 0.1459 0.7500
DRIBU WIND VECTOR DIFF (M/S) 23454 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9260, expected range: -0.6236 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4602500 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=533.4537, expected range: 0.0000 886.8136
Severely_persistent: avg_pge=0.8368, expected range: -1.4954 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1601807 : out of range
Severe: avg_fgdepar=544.2081, expected range: -184.9473 243.9380
Severe: rms_fgdepar=552.0201, expected range: 0.0000 342.8243
Severe: avg_pge=0.8989, expected range: -0.5001 0.6684
metar
METAR SURFACE PRESSURE (PA) HAAB : out of range
Severe: rms_fgdepar=500.5751, expected range: 9.5296 160.9665
METAR SURFACE PRESSURE (PA) AYMH : out of range
Severe: rms_fgdepar=357.0895, expected range: 0.0000 163.6275
METAR SURFACE PRESSURE (PA) HCMM : out of range
Severe: rms_fgdepar=590.3215, expected range: 0.0000 272.5569
METAR SURFACE PRESSURE (PA) FEFT : out of range
Severe: rms_fgdepar=311.4836, expected range: 0.0000 168.4061
AUTOMATIC METAR SURFACE PRESSURE (PA) KAIZ : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=306.4000, expected range: 0.0000 173.8384
snow
MANUAL LAND SYNOP SNOW (CM) 87803 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-55.7402, expected range: -75.1248 -57.5472
Severely_persistent: rms_fgdepar=55.7402, expected range: 57.5472 75.1248
BUFR LAND SYNOP SNOW (CM) 87803 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-55.7402, expected range: -74.9833 -56.4946
Severely_persistent: rms_fgdepar=55.7402, expected range: 56.4946 74.9833
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=-772.5641, expected range: -773.6768 -772.0675
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=772.5642, expected range: 772.0676 773.6768
t2m
MANUAL LAND SYNOP 2M TEMPERATURE (K) 23114 : out of range
Severe: rms_fgdepar=10.5658, expected range: 0.0000 3.3192
METAR 2M TEMPERATURE (K) VTPO : out of range
Severe: rms_fgdepar=13.6309, expected range: 0.0000 7.5699
LAND TEMP 2M TEMPERATURE (K) 61052 : out of range
Severe: avg_fgdepar=-17.1392, expected range: -8.8501 5.5106
Severe: rms_fgdepar=17.1392, expected range: 0.0000 10.1936
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=130.0000, expected range: 186.3061 194.6412
rh2m
All MANUAL LAND SYNOP WMO BLOCK 98 : all data missing
Severe: obs_number=0, expected range: 132.28 140.83
All BUFR LAND SYNOP WMO BLOCK 98 : all data missing
Severe: obs_number=0, expected range: 125.59 135.14