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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-08-17 12:00

amsua
METOP-A/AMSUA RADIANCES CHANNEL 3 : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=1414.0000, expected range: 2784.4977 5733.7631
cris
NPP/CRIS RADIANCES (116 channels affected) : out of range
Severe: avg_biascorr=0.2647, expected range: 0.1684 0.2148
NPP/CRIS RADIANCES (142 channels affected) : out of range
Severe: obs_number=9482.0000, expected range: 4745.8962 6275.4324
NPP/CRIS RADIANCES (24 channels affected) : out of range
2 times in the last 10 days for at least one item
Severe: stdev_fgdepar=3.3847, expected range: 0.1915 0.2784
NOAA20/CRIS RADIANCES CHANNEL 626 : out of range
Considerable: stdev_fgdepar=0.4544, expected range: 0.2806 0.4146
mhs
ALLSKY METOP-A/MHS RADIANCES CHANNEL 3 : out of range
1 times in the last 10 days for at least one item
Considerable: stdev_norm_fgdepar=0.8858, expected range: 0.5970 0.8210
Geostationary CSR
GOES-15/IMAGER RADIANCES CHANNEL 2 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: obs_number=121500.0000, expected range: 17183.7728 35500.7137
GOES-15/IMAGER RADIANCES CHANNEL 3 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: obs_number=34088.0000, expected range: 3297.0319 15476.8060
GOES-16/ABI RADIANCES CHANNEL 2 : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=14133.0000, expected range: 78633.0211 103726.8167
GOES-16/ABI RADIANCES CHANNEL 3 : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=14151.0000, expected range: 78700.3772 103760.0011
GOES-16/ABI RADIANCES CHANNEL 4 : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=14178.0000, expected range: 78902.6411 103902.2237
GOES-16/ABI RADIANCES CHANNEL 7 : out of range
Considerable: obs_number=5874.0000, expected range: 20429.0021 56941.6295
Radiosondes
HIGH RESO LAND TEMP TEMPERATURE (K) (4 pressure layers affected) : out of range
3 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0000, expected range: 0.4008 0.6164
Considerable: obs_number=134.0000, expected range: 190.6107 331.9775
LAND TEMP TEMPERATURE (K) 20046 PRESSURE LAYER 0-300 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=8.1342, expected range: 0.0000 2.3536
LAND TEMP TEMPERATURE (K) 32389 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=6.4276, expected range: 0.0000 1.7396
Severe: avg_pge=0.8464, expected range: -0.2894 0.4299
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 300-600 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_biascorr=0.0711, expected range: 0.1133 0.1527
LAND TEMP WIND VECTOR DIFF (M/S) 70273 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=17.2680, expected range: 0.0000 5.3949
Severe: avg_pge=0.8190, expected range: -0.3898 0.5281
LAND TEMP WIND VECTOR DIFF (M/S) 72456 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=16.2853, expected range: 0.0000 10.0317
Severe: avg_pge=0.8531, expected range: -1.1621 0.7500
HIGH RESO LAND TEMP TEMPERATURE (K) 71945 PRESSURE LAYER 900-1200 (HPA : out of range
Severe: rms_fgdepar=6.9817, expected range: 0.0000 3.3874
HIGH RESO LAND TEMP Q (G/KG) 71945 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.4626, expected range: 0.0000 1.7253
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
3 times in the last 10 days for at least one item
Severe: obs_number=93.0000, expected range: 166.0644 211.8179
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 300-600 (HPA) : out of range
Considerable: rms_fgdepar=1.2362, expected range: 0.3596 0.8885
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) Z2GKJHBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.0877, expected range: 0.0000 8.4494
WIGOS AMDAR WIND VECTOR DIFF (M/S) TWAISOJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.1663, expected range: 0.0000 8.2011
WIGOS AMDAR WIND VECTOR DIFF (M/S) HNNEILRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.3675, expected range: 0.0000 8.4835
WIGOS AMDAR WIND VECTOR DIFF (M/S) Q0CUIJZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.8685, expected range: 0.0000 8.3096
WIGOS AMDAR WIND VECTOR DIFF (M/S) LQTUNVZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=18.2660, expected range: 0.0000 9.1284
WIGOS AMDAR WIND VECTOR DIFF (M/S) E1YEILRA (2 pressure layers affecte : out of range
Severe: rms_fgdepar=15.7829, expected range: 0.6103 6.5487
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 06234 PRESSURE LAYER 600-900 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=18.4282, expected range: 0.0000 16.1782
Severe: avg_pge=0.8078, expected range: -1.0415 0.7500
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 96009 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=31.1116, expected range: 0.0000 9.9318
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=2037.0000, expected range: 2610.3849 3091.2818
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 86330 : out of range
Severe: rms_fgdepar=572.1641, expected range: 0.0000 141.6661
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 76571 : out of range
Severe: rms_fgdepar=413.9942, expected range: 0.0000 139.4080
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83781 : out of range
Severe: rms_fgdepar=313.6824, expected range: 0.0000 137.0241
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40656 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=742.0442, expected range: 0.0000 218.3870
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_biascorr=5.1563, expected range: 0.0000 0.0000
MANUAL LAND SYNOP RH2M (%) 17191 : out of range
Severe: rms_fgdepar=22.5072, expected range: 0.0000 9.7687
MANUAL LAND SYNOP RH2M (%) 41712 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9854, expected range: -0.4922 0.5623
MANUAL LAND SYNOP RH2M (%) 51777 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9458, expected range: -1.7066 0.7500
MANUAL LAND SYNOP RH2M (%) 41697 : out of range
Severe: avg_pge=0.8507, expected range: -0.0026 0.0101
BUFR LAND SYNOP SURFACE PRESSURE (PA) 81870 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=681.7548, expected range: 0.0000 95.5896
Severe: avg_pge=0.9433, expected range: -0.1534 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 23471 : out of range
Severe: rms_fgdepar=574.6310, expected range: 0.0000 139.0763
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24643 : out of range
Severe: rms_fgdepar=567.5891, expected range: 0.0000 115.3442
BUFR LAND SYNOP SURFACE PRESSURE (PA) 30127 : out of range
Severe: rms_fgdepar=1071.0647, expected range: 0.0000 182.1979
Severe: avg_pge=0.9416, expected range: 0.0000 0.0000
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24557 : out of range
Severe: rms_fgdepar=560.1429, expected range: 0.0000 161.0545
BUFR LAND SYNOP RH2M (%) 22981 : out of range
Severe: rms_fgdepar=37.8805, expected range: 0.0000 26.3143
Severe: avg_pge=0.9577, expected range: -0.0593 0.0716
BUFR LAND SYNOP RH2M (%) 23847 : out of range
Severe: rms_fgdepar=27.6034, expected range: 0.0000 14.7276
BUFR LAND SYNOP RH2M (%) 70267 : out of range
Severe: rms_fgdepar=40.8477, expected range: 0.0000 21.9458
ship
SHIP SURFACE PRESSURE (PA) BQHZ : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8888, expected range: -1.1869 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) LF4J : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9060, expected range: 0.0910 0.7500
SHIP WIND VECTOR DIFF (M/S) DBRE : out of range
Severe: rms_fgdepar=15.4002, expected range: 0.0000 8.9197
Severe: avg_pge=0.9015, expected range: -0.4535 0.7500
SHIP SURFACE PRESSURE (PA) C6YM5 : out of range
Severe: avg_pge=0.8162, expected range: -1.0414 0.7500
SHIP SURFACE PRESSURE (PA) VRMY6 : out of range
Severe: rms_fgdepar=1180.2975, expected range: 0.0000 286.9853
Severe: avg_pge=0.9441, expected range: -0.7245 0.7500
SHIP SURFACE PRESSURE (PA) 3FFL8 : out of range
Severe: rms_fgdepar=630.0814, expected range: 0.0000 133.7855
ABBREVIATED SHIP WIND VECTOR DIFF (M/S) 9HJC9 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9038, expected range: -0.8228 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 7401502 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8260, expected range: -0.1482 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6301507 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8266, expected range: -1.4794 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
4 times in the last 10 days for at least one item
Severe: avg_biascorr=4.1261, expected range: 0.0000 0.0000
MOORED BUOYS WIND VECTOR DIFF (M/S) : out of range
4 times in the last 10 days for at least one item
Considerable: obs_number=183.0000, expected range: 192.0785 224.0836
metar
AUTOMATIC METAR SURFACE PRESSURE (PA) KSTJ : out of range
Severe: rms_fgdepar=466.0531, expected range: 0.0000 177.7230
AUTOMATIC METAR SURFACE PRESSURE (PA) KMHK : out of range
Severe: rms_fgdepar=433.4626, expected range: 0.0000 217.4815
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89504 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8026, expected range: 0.6961 0.9227
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8092, expected range: 0.6949 0.9070
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89504 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8007, expected range: 0.6291 0.9797
LAND TEMP 2M TEMPERATURE (K) 72376 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8144, expected range: -0.5039 1.3726
LAND TEMP 2M TEMPERATURE (K) 56029 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8282, expected range: -0.0033 1.2328
BUFR LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8106, expected range: 0.7007 0.9041
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 68403 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.9588, expected range: 0.0000 4.0392
MANUAL LAND SYNOP 2M TEMPERATURE (K) 68267 : out of range
Severe: rms_fgdepar=7.0843, expected range: 0.0000 3.2463
METAR 2M TEMPERATURE (K) UNNT : out of range
Severe: rms_fgdepar=9.2475, expected range: 0.5369 4.9951
BUFR LAND SYNOP 2M TEMPERATURE (K) 60037 : out of range
Severe: rms_fgdepar=9.4336, expected range: 0.0000 4.1324
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
Severe: obs_number=67.0000, expected range: 66.0000 66.0000
rh2m
AUTOMATIC LAND SYNOP RH2M (%) : out of range
3 times in the last 10 days for at least one item
Severe: obs_number=873.0000, expected range: 1414.1177 1696.2607
MANUAL LAND SYNOP RH2M (%) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=67.0000, expected range: 66.0000 66.0000