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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-09-15 00:00

Atmospheric Motion Vector
HIMAWARI-8 AMV IR1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: stdev_fgdepar=2.5615, expected range: 2.0018 2.4416
Radiosondes
LAND TEMP TEMPERATURE (K) 59134 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=9.3635, expected range: 0.0000 3.2722
LAND TEMP TEMPERATURE (K) 42874 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=9.8838, expected range: 0.0000 4.8331
LAND TEMP TEMPERATURE (K) 42399 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=9.7484, expected range: 0.0000 3.8318
LAND TEMP TEMPERATURE (K) 40265 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.8474, expected range: -1.0977 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 26477 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=25.2795, expected range: 0.0000 18.6705
Severe: avg_pge=0.8854, expected range: -0.4727 0.7500
All LAND TEMP WIND VECTOR DIFF (M/S) ALL LAYERS WMO BLOCK 16 : all data missing
Severe: obs_number=0, expected range: 28.99 124.35
LAND TEMP Q (G/KG) 96163 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.6984, expected range: 0.0000 1.8032
HIGH RESO LAND TEMP TEMPERATURE (K) 60390 PRESSURE LAYER 900-1200 (HPA : out of range
Severe: rms_fgdepar=8.0275, expected range: 0.0000 3.4613
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (2 pressure layers affected : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=5.3274, expected range: 1.2700 3.4738
Considerable: rms_fgdepar=5.6375, expected range: 1.3942 4.0854
HIGH RESO LAND TEMP Q (G/KG) (4 pressure layers affected) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=64.0000, expected range: 182.6568 203.5932
HIGH RESO LAND TEMP Q (G/KG) 68263 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.7538, expected range: 0.0000 1.0056
HIGH RESO SEA TEMP Q (G/KG) PRESSURE LAYER 0-300 (HPA) : missing
2 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 0.0000 203.3864
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU0615 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.7900, expected range: 0.0000 7.1450
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU0666 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.5882, expected range: 0.0000 6.8254
WIGOS AMDAR TEMPERATURE (K) FRHGIVRA PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=10.3938, expected range: 0.0000 2.2797
Severe: avg_pge=0.9051, expected range: -0.2663 0.3126
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 06234 PRESSURE LAYER 600-900 : out of range
Severe: rms_fgdepar=17.9429, expected range: 0.0000 6.1808
Severe: avg_pge=0.8776, expected range: -0.4156 0.6016
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 10169 PRESSURE LAYER 600-900 : out of range
Severe: rms_fgdepar=17.8196, expected range: 0.0000 11.5259
Severe: avg_pge=0.8774, expected range: -0.7344 0.7500
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 97900 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.8088, expected range: -0.4984 0.7500
synop
MANUAL LAND SYNOP RH2M (%) 40016 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=1.0000, expected range: -1.5659 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42894 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8032, expected range: -1.3694 0.7500
BUFR LAND SYNOP RH2M (%) 94439 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9988, expected range: -2.0182 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 81982 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9460, expected range: -0.9637 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
4 times in the last 10 days for at least one item
Severely_persistent: obs_number=611.0000, expected range: 739.7447 859.1303
Severely_persistent: obs_number=110.0000, expected range: 166.8725 204.5719
Considerable: avg_biascorr=5.2717, expected range: -2.2655 2.6005
AUTOMATIC LAND SYNOP RH2M (%) 68155 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=45.7130, expected range: 0.0000 27.1979
Severe: avg_pge=0.9781, expected range: -0.6413 0.7500
MANUAL LAND SYNOP RH2M (%) 95814 : out of range
Severe: avg_pge=0.8282, expected range: -0.3736 0.4256
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40680 : out of range
Severe: rms_fgdepar=550.2884, expected range: 0.0000 149.7630
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 60390 : out of range
Severe: rms_fgdepar=312.9344, expected range: 0.0000 159.7399
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 60351 : out of range
Severe: rms_fgdepar=482.3103, expected range: 0.0000 187.1906
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 31102 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=604.3941, expected range: 0.0000 191.7391
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 60402 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=367.5864, expected range: 0.0000 127.2190
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 76113 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8363, expected range: -0.9518 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 13463 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=413.1534, expected range: 0.0000 294.8232
Severe: avg_pge=0.8539, expected range: -0.4428 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42456 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=428.9184, expected range: 0.0000 361.7673
Severe: avg_pge=0.8733, expected range: -0.8506 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 86128 : out of range
Severe: avg_pge=0.8139, expected range: -0.9911 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 60368 : out of range
Severe: rms_fgdepar=404.7725, expected range: 0.0000 142.3875
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
3 times in the last 10 days for at least one item
Severe: obs_number=61.0000, expected range: 60.0000 60.0000
BUFR LAND SYNOP RH2M (%) 94772 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9204, expected range: -1.0638 0.7500
BUFR LAND SYNOP RH2M (%) 95814 : out of range
Severe: avg_pge=0.9678, expected range: -0.7807 0.7500
BUFR LAND SYNOP RH2M (%) 95746 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9954, expected range: -1.3503 0.7500
BUFR LAND SYNOP RH2M (%) 94789 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=49.2505, expected range: 0.0000 27.0594
Severe: avg_pge=0.9449, expected range: -0.1965 0.2226
BUFR LAND SYNOP SURFACE PRESSURE (PA) 01203 : out of range
Severe: rms_fgdepar=492.2732, expected range: 0.0000 220.4301
Severe: avg_pge=0.8924, expected range: -0.8876 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 01205 : out of range
Severe: rms_fgdepar=331.7081, expected range: 0.0000 160.4073
Severe: avg_pge=0.8133, expected range: -0.5064 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 61995 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9276, expected range: -0.9543 0.7500
ship
AUTOMATIC SHIP SURFACE PRESSURE (PA) 44058 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8330, expected range: 0.1334 0.7500
AUTOMATIC SHIP WIND VECTOR DIFF (M/S) 42013 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8542, expected range: -1.2231 0.7500
SHIP SURFACE PRESSURE (PA) D5HF2 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9073, expected range: 0.1014 0.7500
SHIP SURFACE PRESSURE (PA) 9V9408 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8120, expected range: -1.3526 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=0.9509, expected range: 0.3148 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) 62141 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=333.5639, expected range: 0.0000 134.6740
Severe: avg_pge=0.8203, expected range: -0.6551 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) 41037 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=419.2379, expected range: 0.0000 379.1484
Severe: avg_pge=0.8759, expected range: -1.2057 0.7500
AUTOMATIC SHIP WIND VECTOR DIFF (M/S) 66022 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8813, expected range: -1.1557 0.7500
SHIP SURFACE PRESSURE (PA) 3ETA7 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8027, expected range: -0.4257 0.7500
SHIP SURFACE PRESSURE (PA) V7QK9 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8230, expected range: -0.4003 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) LF4Q : out of range
Severe: rms_fgdepar=375.6911, expected range: 0.0000 197.3453
Severe: avg_pge=0.8298, expected range: -0.7367 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 4802503 : out of range
Severe: rms_fgdepar=618.5673, expected range: 0.0000 208.3732
Severe: avg_pge=0.9150, expected range: -0.6971 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5301764 : out of range
Severe: rms_fgdepar=527.6374, expected range: 0.0000 137.7180
Severe: avg_pge=0.8961, expected range: -0.6179 0.7464
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_biascorr=2.3051, expected range: 0.0000 0.0000
metar
METAR SURFACE PRESSURE (PA) DAAE : out of range
Severe: rms_fgdepar=502.1365, expected range: 0.0000 213.7634
METAR SURFACE PRESSURE (PA) DAAG : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=338.9944, expected range: 0.0000 112.7012
AUTOMATIC METAR SURFACE PRESSURE (PA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_biascorr=0.0000, expected range: -166.9046 -74.3481
AUTOMATIC METAR SURFACE PRESSURE (PA) ENLA : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8282, expected range: -0.8594 0.7500
AUTOMATIC METAR SURFACE PRESSURE (PA) ENQR : out of range
Severe: rms_fgdepar=447.7492, expected range: 0.0000 234.8373
snow
MANUAL LAND SYNOP SNOW (CM) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=0.0682, expected range: -0.0225 0.0253
Severely_persistent: rms_fgdepar=2.6705, expected range: -0.4057 0.5488
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) : out of range
9 times in the last 10 days for at least one item
Severely_persistent: obs_number=224.0000, expected range: 274.1496 308.1629
LAND TEMP 2M TEMPERATURE (K) 89009 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8278, expected range: 0.4495 1.1006
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 01082 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.0486, expected range: 0.0000 3.9261
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02827 : out of range
Severe: rms_fgdepar=7.9265, expected range: 0.0000 3.8301
METAR 2M TEMPERATURE (K) OMSJ : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=8.5725, expected range: 0.5330 3.9407
METAR 2M TEMPERATURE (K) KHUM : out of range
Severe: rms_fgdepar=8.5974, expected range: 0.5778 4.5181
METAR 2M TEMPERATURE (K) KJLN : out of range
Severe: rms_fgdepar=8.3874, expected range: 0.7796 3.7819
BUFR LAND SYNOP 2M TEMPERATURE (K) 01082 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.0946, expected range: 0.0000 3.4054
rh2m
MANUAL LAND SYNOP RH2M (%) 22003 : out of range
Severe: rms_fgdepar=21.1440, expected range: 0.0000 12.0217
MANUAL LAND SYNOP RH2M (%) 89606 : out of range
Severe: rms_fgdepar=19.9828, expected range: 0.0000 11.1826