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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-09-21 00:00

iasi
All METOP-A/IASI RADIANCES ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 26376.69
METOP-C/IASI RADIANCES (206 channels affected) : out of range
Severe: obs_number=82235.0000, expected range: 107910.3873 134600.4235
gpsro
All TERRASAR-X SETTING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 1486.10
All TANDEM-X RISING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 1106.34
Atmospheric Motion Vector
METOP-A/AMV IR WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : out of range
Considerable: stdev_press=93.8231, expected range: 52.3704 82.1701
METOP-B/AMV IR WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : out of range
Considerable: stdev_press=96.1109, expected range: 53.1975 84.7101
Radiosondes
LAND TEMP Q (G/KG) 71811 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.3521, expected range: 0.0000 1.1993
LAND TEMP Q (G/KG) 71802 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=4.1882, expected range: 0.0000 1.0477
LAND TEMP TEMPERATURE (K) 48820 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=6.3147, expected range: 0.0000 3.3195
LAND TEMP TEMPERATURE (K) 53463 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=7.0244, expected range: 0.3210 2.4501
LAND TEMP TEMPERATURE (K) 32477 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=7.8088, expected range: 0.0000 2.2829
LAND TEMP TEMPERATURE (K) 38341 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.8828, expected range: -0.5660 0.7500
LAND TEMP TEMPERATURE (K) 30673 PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8734, expected range: -1.2059 0.7500
LAND TEMP TEMPERATURE (K) 30715 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=8.6599, expected range: 0.0000 5.5888
Severe: avg_pge=0.9068, expected range: -0.9667 0.7500
LAND TEMP TEMPERATURE (K) 29698 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=8.3839, expected range: 0.0000 6.6734
Severe: avg_pge=0.9046, expected range: -0.7580 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 32477 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=16.5900, expected range: 0.0000 9.5140
Severe: avg_pge=0.8073, expected range: -0.7498 0.7500
HIGH RESO LAND TEMP TEMPERATURE (K) (3 pressure layers affected) : out of range
Severe: obs_number=2483.0000, expected range: 1861.5917 2194.5194
HIGH RESO SEA TEMP Q (G/KG) PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Slight: avg_fgdepar=0.0124, expected range: -0.0063 0.0066
Slight: rms_fgdepar=0.0314, expected range: 0.0000 0.0215
amdar
AMDAR WIND VECTOR DIFF (M/S) THA491 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=17.7424, expected range: 0.0000 9.3788
AMDAR WIND VECTOR DIFF (M/S) AFZA44 PRESSURE LAYER 300-600 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=16.1140, expected range: 0.1389 6.3087
WIGOS AMDAR TEMPERATURE (K) PRESSURE LAYER 600-900 (HPA) : out of range
Considerable: rms_fgdepar=1.8351, expected range: 0.4011 1.2684
airep
AIREP WIND VECTOR DIFF (M/S) AAL1945 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=25.5691, expected range: 0.0000 8.0460
AIREP WIND VECTOR DIFF (M/S) NRS13E PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=22.3072, expected range: 0.0000 7.0481
Severe: avg_pge=0.8307, expected range: -0.1311 0.1676
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 01247 PRESSURE LAYER 300-600 : out of range
Severe: avg_pge=0.8994, expected range: -0.2737 0.7500
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 01206 PRESSURE LAYER 600-900 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8799, expected range: -0.6578 0.7500
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 67083 (2 pressure layers affected) : out of range
Severe: avg_pge=0.8271, expected range: -0.1729 0.7500
BUFR LAND PILOT WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Slight: avg_fgdepar=5.0449, expected range: 1.2605 4.6735
Slight: rms_fgdepar=6.6547, expected range: 1.3944 5.5217
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42711 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8163, expected range: -1.2204 0.7500
BUFR LAND SYNOP RH2M (%) 94439 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9979, expected range: -2.0490 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_biascorr=4.2839, expected range: -1.3058 1.3022
MANUAL LAND SYNOP RH2M (%) 60770 : out of range
Severe: rms_fgdepar=34.5126, expected range: 0.0000 25.8502
Severe: avg_pge=0.8916, expected range: -0.1363 0.1621
MANUAL LAND SYNOP RH2M (%) 61049 : out of range
Severe: rms_fgdepar=45.0532, expected range: 0.0000 21.7188
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43260 : out of range
Severe: rms_fgdepar=789.3875, expected range: 0.0000 515.9471
Severe: avg_pge=0.9080, expected range: -1.1767 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 86260 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8939, expected range: -1.0837 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 37801 : out of range
Severe: rms_fgdepar=424.9659, expected range: 0.0000 375.1415
Severe: avg_pge=0.8125, expected range: -0.9402 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 38511 : out of range
Severe: rms_fgdepar=390.7592, expected range: 0.0000 297.2295
Severe: avg_pge=0.8400, expected range: -0.4734 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40632 : out of range
Severe: rms_fgdepar=446.5842, expected range: 0.0000 227.0548
Severe: avg_pge=0.8632, expected range: -0.9341 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 76113 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=866.9993, expected range: 0.0000 509.9933
Severe: avg_pge=0.9305, expected range: -0.9775 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43083 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8225, expected range: -1.3056 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83844 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9172, expected range: -0.9735 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 31054 : out of range
Severe: rms_fgdepar=310.7791, expected range: 0.0000 186.0902
Severe: avg_pge=0.8122, expected range: -0.4354 0.7175
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 37787 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8755, expected range: -0.9587 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 86128 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8224, expected range: -0.9438 0.7500
BUFR LAND SYNOP RH2M (%) 40400 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=1.0000, expected range: -1.2005 0.7500
BUFR LAND SYNOP RH2M (%) 06750 : out of range
Severe: rms_fgdepar=57.4779, expected range: 0.0000 51.0183
Severe: avg_pge=0.9977, expected range: -0.6539 0.7498
BUFR LAND SYNOP RH2M (%) 94311 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9654, expected range: -2.0013 0.7500
BUFR LAND SYNOP RH2M (%) 94735 : out of range
Severe: rms_fgdepar=40.3507, expected range: 0.0000 34.1150
Severe: avg_pge=0.8664, expected range: -0.7360 0.7500
BUFR LAND SYNOP RH2M (%) 95895 : out of range
Severe: rms_fgdepar=52.9600, expected range: 0.0000 47.9054
Severe: avg_pge=0.9998, expected range: -0.0391 0.0745
BUFR LAND SYNOP RH2M (%) 72578 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=29.3505, expected range: 0.0000 16.3372
BUFR LAND SYNOP RH2M (%) 01439 : out of range
Severe: rms_fgdepar=27.2797, expected range: 0.0000 12.7954
BUFR LAND SYNOP SURFACE PRESSURE (PA) 81982 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9491, expected range: -1.2052 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94439 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8381, expected range: -1.3194 0.7500
MANUAL LAND SYNOP Z (M) : out of range
2 times in the last 10 days for at least one item
Slight: rms_fgdepar=211.9061, expected range: 106.2160 198.4807
ship
AUTOMATIC SHIP WIND VECTOR DIFF (M/S) 42013 : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9032, expected range: -1.2261 0.7500
SHIP SURFACE PRESSURE (PA) 9V2779 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9133, expected range: -0.7270 0.7500
SHIP WIND VECTOR DIFF (M/S) DIXJ2 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9168, expected range: -0.3327 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) LF4J : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8437, expected range: 0.3056 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) AMOUK57 : out of range
Severe: rms_fgdepar=602.9795, expected range: 0.0000 258.3555
SHIP SURFACE PRESSURE (PA) ZCEE2 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8452, expected range: -1.0551 0.7500
SHIP WIND VECTOR DIFF (M/S) HPYE : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=15.9409, expected range: 0.0000 12.5720
Severe: avg_pge=0.8927, expected range: -0.7871 0.7500
buoy
DRIBU WIND VECTOR DIFF (M/S) 53056 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9226, expected range: 0.7153 0.7500
MOORED BUOYS WIND VECTOR DIFF (M/S) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: obs_number=222.0000, expected range: 189.4245 197.1160
DRIFTING BUOYS SURFACE PRESSURE (PA) 5301764 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9001, expected range: -1.4331 0.7500
DRIBU WIND VECTOR DIFF (M/S) 23456 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9260, expected range: 0.7179 0.7500
metar
METAR SURFACE PRESSURE (PA) MMPA : out of range
Severe: rms_fgdepar=301.5617, expected range: 0.0000 141.4979
METAR SURFACE PRESSURE (PA) SBLO : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=356.9383, expected range: 0.0000 118.3073
METAR SURFACE PRESSURE (PA) LICU : out of range
Severe: rms_fgdepar=474.8815, expected range: 0.0000 175.2524
snow
BUFR LAND SYNOP SNOW (CM) : out of range
28 times in the last 10 days for at least one item
Severely_persistent: obs_number=734.0000, expected range: 937.8832 1096.1708
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 03062 : out of range
Severe: rms_fgdepar=7.2444, expected range: 0.0000 2.7854
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89504 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8304, expected range: -0.2145 1.3659
MANUAL LAND SYNOP 2M TEMPERATURE (K) 61612 : out of range
Severe: rms_fgdepar=8.7710, expected range: 0.0000 4.2674
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89504 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8251, expected range: -0.2782 1.3852
METAR 2M TEMPERATURE (K) SKBG : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=8.3994, expected range: 0.0000 4.1003
METAR 2M TEMPERATURE (K) PHMK : out of range
Severe: rms_fgdepar=8.6579, expected range: 0.0000 4.5288
BUFR LAND SYNOP 2M TEMPERATURE (K) 61612 : out of range
Severe: rms_fgdepar=8.4922, expected range: 0.0000 4.2580
BUFR LAND SYNOP 2M TEMPERATURE (K) 89504 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8301, expected range: -0.2003 1.3538
rh2m
MANUAL LAND SYNOP RH2M (%) 68424 : out of range
Severe: rms_fgdepar=23.7783, expected range: 0.0000 12.1913
MANUAL LAND SYNOP RH2M (%) 40878 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=20.4261, expected range: 0.0000 7.1667
METAR RH2M (%) OPNK : out of range
Severe: rms_fgdepar=21.9032, expected range: 0.0000 8.0687
BUFR LAND SYNOP RH2M (%) : out of range
Severe: obs_number=165.0000, expected range: 303.1512 486.9541