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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-08-16 00:00

amsua
NOAA-19/AMSUA RADIANCES CHANNEL 9 : out of range
4 times in the last 10 days for at least one item
Considerable: avg_biascorr=0.0366, expected range: 0.0606 0.1205
cris
NPP/CRIS RADIANCES (119 channels affected) : out of range
Severe: avg_biascorr=0.2548, expected range: 0.1644 0.2148
NPP/CRIS RADIANCES (144 channels affected) : out of range
Severe: obs_number=9377.0000, expected range: 4561.1931 6275.4324
NPP/CRIS RADIANCES (19 channels affected) : out of range
Severe: avg_fgdepar=-0.1899, expected range: -0.0527 0.0714
NPP/CRIS RADIANCES (22 channels affected) : out of range
2 times in the last 10 days for at least one item
Severe: stdev_fgdepar=3.1832, expected range: 0.1915 0.2784
Geostationary CSR
GOES-15/IMAGER RADIANCES CHANNEL 2 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: obs_number=126281.0000, expected range: 19972.1068 33830.5043
GOES-15/IMAGER RADIANCES CHANNEL 3 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: obs_number=42126.0000, expected range: 3668.8920 15447.5291
Radiosondes
LAND TEMP TEMPERATURE (K) 32477 PRESSURE LAYER 300-600 (HPA) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=9.6323, expected range: 0.0000 1.6506
Severely_persistent: avg_pge=0.8965, expected range: -0.2887 0.4148
LAND TEMP TEMPERATURE (K) 30673 PRESSURE LAYER 900-1200 (HPA) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8374, expected range: -1.3823 0.7500
LAND TEMP TEMPERATURE (K) 32215 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8461, expected range: -0.7951 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 27730 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.1295, expected range: 0.0000 8.3366
LAND TEMP WIND VECTOR DIFF (M/S) 32477 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=20.8988, expected range: 0.0000 7.9586
LAND TEMP WIND VECTOR DIFF (M/S) 32477 (3 pressure layers affected) : out of range
Severe: avg_pge=0.8317, expected range: -0.3374 0.4582
LAND TEMP WIND VECTOR DIFF (M/S) 31369 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=16.1424, expected range: 0.0000 6.2557
LAND TEMP WIND VECTOR DIFF (M/S) 27459 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=17.2728, expected range: 0.0000 5.2455
LAND TEMP WIND VECTOR DIFF (M/S) 34300 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=17.5336, expected range: 0.0000 6.9472
LAND TEMP WIND VECTOR DIFF (M/S) 34247 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=16.5612, expected range: 0.0000 7.7993
Severe: avg_pge=0.8641, expected range: -0.7384 0.7500
All HIGH RESO LAND TEMP TEMPERATURE (K) ALL LAYERS Missing
LAND TEMP WIND VECTOR DIFF (M/S) (2 pressure layers affected) : out of range
Considerable: avg_fgdepar=7.2827, expected range: 0.5596 4.9884
amdar
WIGOS AMDAR TEMPERATURE (K) PMGEIRJA (2 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=6.2847, expected range: 0.0000 1.2738
WIGOS AMDAR TEMPERATURE (K) PMGEIRJA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8294, expected range: -0.0552 0.0679
WIGOS AMDAR TEMPERATURE (K) 44W0GBZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=6.2127, expected range: 0.0000 1.7178
WIGOS AMDAR WIND VECTOR DIFF (M/S) KIMUD2JA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_pge=0.8552, expected range: -0.6494 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) QQNJ5VJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_pge=0.8327, expected range: -0.6881 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) TBYAO5SA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.3916, expected range: 0.0000 6.9738
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 97560 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=19.7061, expected range: 0.0000 14.9618
Severe: avg_pge=0.8854, expected range: -0.6514 0.7500
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) : out of range
8 times in the last 10 days for at least one item
Severely_persistent: obs_number=31.0000, expected range: 65.4831 111.0169
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42523 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8449, expected range: -0.9115 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42078 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8993, expected range: -0.7666 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: obs_number=201.0000, expected range: 114.4356 161.6894
Severely_persistent: avg_biascorr=-1.0377, expected range: -0.2169 0.5779
BUFR LAND SYNOP RH2M (%) 71774 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9993, expected range: -0.9203 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 89014 : out of range
Severe: rms_fgdepar=361.9043, expected range: 0.0000 236.8790
Severe: avg_pge=0.8165, expected range: -0.6433 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 47639 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=318.9899, expected range: 0.0224 110.3642
AUTOMATIC LAND SYNOP RH2M (%) 41301 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9995, expected range: -0.8694 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40656 : out of range
Severe: avg_pge=0.9390, expected range: -1.0386 0.7500
MANUAL LAND SYNOP RH2M (%) 76647 : out of range
Severe: avg_pge=0.9930, expected range: -0.0960 0.1271
MANUAL LAND SYNOP RH2M (%) 62459 : out of range
Severe: avg_pge=0.9817, expected range: -0.6658 0.7500
MANUAL LAND SYNOP RH2M (%) : out of range
Severe: obs_number=90.0000, expected range: 91.0000 91.0000
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24322 : out of range
Severe: rms_fgdepar=596.1266, expected range: 0.0000 161.3457
BUFR LAND SYNOP RH2M (%) 34003 : out of range
Severe: rms_fgdepar=32.6344, expected range: 0.0000 17.7675
BUFR LAND SYNOP RH2M (%) 81843 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9980, expected range: -1.7891 0.7500
ship
AUTOMATIC SHIP WIND VECTOR DIFF (M/S) 62140 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8156, expected range: -1.0737 0.7500
SHIP SURFACE PRESSURE (PA) BQHZ : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9325, expected range: -1.0420 0.7500
SHIP SURFACE PRESSURE (PA) 9HA3047 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=751.6013, expected range: 0.0000 416.3947
SHIP WIND VECTOR DIFF (M/S) VRVN8 : out of range
Severe: rms_fgdepar=22.0744, expected range: 0.0000 15.0917
Severe: avg_pge=0.9316, expected range: 0.0459 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) : out of range
5 times in the last 10 days for at least one item
Slight: obs_number=4461.0000, expected range: 3884.0555 4279.5809
buoy
MOORED BUOYS SURFACE PRESSURE (PA) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: obs_number=154.0000, expected range: 188.6851 221.3149
Severely_persistent: obs_number=72.0000, expected range: 111.7506 130.7065
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=5.5230, expected range: 0.0000 0.0000
DRIFTING BUOYS SURFACE PRESSURE (PA) 3100735 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=464.7033, expected range: 0.0000 182.1292
DRIFTING BUOYS SURFACE PRESSURE (PA) 2101547 : out of range
Severe: rms_fgdepar=333.0546, expected range: 0.0000 133.9356
metar
METAR SURFACE PRESSURE (PA) LIRT : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=523.7531, expected range: 0.0000 147.4116
METAR SURFACE PRESSURE (PA) FYKM : out of range
Severe: rms_fgdepar=516.1437, expected range: 0.0000 127.9359
METAR SURFACE PRESSURE (PA) UIUU : out of range
Severe: rms_fgdepar=762.0092, expected range: 0.0000 159.8498
Severe: avg_pge=0.8483, expected range: -0.0972 0.1124
t2m
AUTOMATIC 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=0.8947, expected range: 0.6998 0.9021
BUFR LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8959, expected range: 0.7056 0.8997
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89625 : out of range
3 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8337, expected range: -0.4359 1.2527
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89828 : out of range
2 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8070, expected range: -0.2940 1.1452
MANUAL LAND SYNOP 2M TEMPERATURE (K) 32411 : out of range
Severe: rms_fgdepar=8.6728, expected range: 0.0000 4.2551
MANUAL LAND SYNOP 2M TEMPERATURE (K) 63881 : out of range
Severe: rms_fgdepar=7.1144, expected range: 0.0000 2.8831
MANUAL LAND SYNOP 2M TEMPERATURE (K) 76654 : out of range
Severe: rms_fgdepar=7.4016, expected range: 0.0000 3.7218
MANUAL LAND SYNOP 2M TEMPERATURE (K) 35925 : out of range
Severe: rms_fgdepar=7.7242, expected range: 0.0000 2.9891
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89606 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8253, expected range: 0.0639 1.2427
MANUAL LAND SYNOP 2M TEMPERATURE (K) 40948 : out of range
Severe: rms_fgdepar=13.8986, expected range: 0.0000 5.7809
Severe: avg_est_pge=0.8489, expected range: -0.4454 0.7983
METAR 2M TEMPERATURE (K) KHWD : out of range
Severe: rms_fgdepar=8.3445, expected range: 0.0000 4.6932
METAR 2M TEMPERATURE (K) KMGE : out of range
Severe: rms_fgdepar=8.3779, expected range: 0.2537 4.4539
METAR 2M TEMPERATURE (K) KGRF : out of range
Severe: rms_fgdepar=16.1214, expected range: 0.0000 6.3618
METAR 2M TEMPERATURE (K) KCWF : out of range
Severe: rms_fgdepar=8.0457, expected range: 0.6012 3.9232
METAR 2M TEMPERATURE (K) KMER : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=13.0549, expected range: 0.0708 6.7392
METAR 2M TEMPERATURE (K) ENBS : out of range
Severe: rms_fgdepar=9.0241, expected range: 0.0000 4.6950
METAR 2M TEMPERATURE (K) EDGS : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=9.5448, expected range: 0.0000 4.0560
METAR 2M TEMPERATURE (K) ESNV : out of range
Severe: rms_fgdepar=7.7427, expected range: 0.0000 3.2999
LAND TEMP 2M TEMPERATURE (K) 72493 : out of range
Severe: rms_fgdepar=7.7023, expected range: 0.0000 4.2573
LAND TEMP 2M TEMPERATURE (K) 24266 : out of range
Severe: avg_est_pge=0.8004, expected range: -0.5267 1.2655
LAND TEMP 2M TEMPERATURE (K) 30557 : out of range
2 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8045, expected range: 0.2613 1.0167
BUFR LAND SYNOP 2M TEMPERATURE (K) 89606 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8257, expected range: -0.0198 1.2916
BUFR LAND SYNOP 2M TEMPERATURE (K) 89828 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8046, expected range: -0.3084 1.1553