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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2020-07-11 12:00

amsua
METOP-C AMSUA RADIANCES CHANNEL 11 : out of range
Slight: stdev_fgdepar=0.2513, expected range: 0.2272 0.2444
iasi
METOP-C IASI RADIANCES CHANNEL 101 : out of range
Slight: stdev_fgdepar=0.3447, expected range: 0.2707 0.3296
airs
AQUA AIRS RADIANCES CHANNEL 1030 : out of range
Considerable: avg_fgdepar=-0.0862, expected range: -0.0447 0.0116
saphir
All MEGHA-TROPIQUES SAPHIR ALLSKY ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 335.48 17468.28
mwhs2
FY-3D MWHS2 ALLSKY RADIANCES CHANNEL 5 : out of range
Slight: avg_norm_fgdepar=-0.1089, expected range: -0.0547 0.0684
FY-3D MWHS2 ALLSKY RADIANCES CHANNEL 6 : out of range
Slight: avg_norm_fgdepar=-0.0930, expected range: -0.0457 0.0800
atms
NOAA20 ATMS RADIANCES CHANNEL 14 : out of range
Considerable: stdev_fgdepar=0.7529, expected range: 0.4769 0.6562
gpsro
All KOMPSAT-5 GPSRO SETTING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 217.54 872.91
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 10-11 (HPA) : out of range
17 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=0.0000, expected range: 0.0045 0.0093
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 20-21 (HPA) : out of range
26 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=0.0171, expected range: 0.0074 0.0113
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 30-31 (HPA) : out of range
8 times in the last 10 days for at least one item
Slight: stdev_fgdepar=0.0232, expected range: 0.0151 0.0209
Radiosondes
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : missing
3 times in the last 10 days for at least one item
Severely_persistent: obs_number=0.0000, expected range: 0.0000 653.6949
Severe: obs_number=0.0000, expected range: 31.8236 175.1764
Severe: obs_number=0.0000, expected range: 0.7949 320.7405
HIGH RESO SEA TEMP TEMPERATURE (K) (3 pressure layers affected) : missing
7 times in the last 10 days for at least one item
Severely_persistent: obs_number=0.0000, expected range: 0.0000 852.3454
LAND TEMP TEMPERATURE (K) 23955 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=-11.5267, expected range: -0.7867 1.1099
Severe: rms_fgdepar=11.5267, expected range: 0.0000 3.7691
Severe: avg_pge=0.9301, expected range: -0.9215 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 36096 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_fgdepar=21.1267, expected range: -4.7450 11.3963
Severe: rms_fgdepar=21.7135, expected range: 0.0000 12.1700
Severe: avg_pge=0.8868, expected range: -0.4531 0.7500
HIGH RESO LAND TEMP TEMPERATURE (K) 12982 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=9.1510, expected range: -1.0388 0.5672
Severe: rms_fgdepar=11.6294, expected range: 0.2438 1.6795
HIGH RESO LAND TEMP Q (G/KG) 76644 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.1633, expected range: 0.6554 1.5151
HIGH RESO LAND TEMP Q (G/KG) 72558 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=4.4898, expected range: 0.1454 2.4195
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 0-300 (HPA) : missing
3 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 28.0313 276.4013
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 12982 PRESSURE LAYER 0-300 : out of range
Severe: avg_fgdepar=20.8699, expected range: 1.0639 5.3665
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 12982 (2 pressure layers af : out of range
Severe: rms_fgdepar=22.3256, expected range: 1.5992 5.6571
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 12982 PRESSURE LAYER 600-90 : out of range
Severe: avg_pge=0.8483, expected range: -0.3342 0.6114
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (3 pressure layers affected : missing
1 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 67.2607 778.7550
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 26 : all data missing
Severe: obs_number=0, expected range: 98.19 129.81
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 84 : all data missing
Severe: obs_number=0, expected range: 115.29 134.21
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: rms_fgdepar=3.9205, expected range: 0.8491 2.8698
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
Considerable: avg_fgdepar=1.1446, expected range: -0.3491 0.5850
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) OA1CBFJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.8409, expected range: 0.0000 9.2899
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 48407 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=20.7776, expected range: 0.0000 28.5737
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 89799 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-537.1603, expected range: -1494.1614 1230.7274
Severely_persistent: rms_fgdepar=537.1603, expected range: -1146.0421 1448.3246
Severely_persistent: avg_pge=0.8590, expected range: -1.9641 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42328 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=507.9755, expected range: 0.0000 559.1952
BUFR LAND SYNOP SURFACE PRESSURE (PA) 72494 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8429, expected range: 0.7774 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 12215 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-556.6338, expected range: -1088.4525 1038.6210
Severely_persistent: rms_fgdepar=561.5156, expected range: 0.0000 742.5749
Severely_persistent: avg_pge=0.9345, expected range: -0.1102 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 72327 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8697, expected range: 0.8542 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 38045 : out of range
Severe: rms_fgdepar=397.2437, expected range: 0.0000 108.6032
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42177 : out of range
Severe: avg_fgdepar=612.0320, expected range: -414.1834 611.2683
Severe: rms_fgdepar=612.0320, expected range: 0.0000 599.3794
Severe: avg_pge=0.9031, expected range: -1.4748 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 68328 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8379, expected range: 0.7773 0.7500
MANUAL LAND SYNOP RH2M (%) 68580 : out of range
Severe: rms_fgdepar=34.8528, expected range: 0.0000 9.8663
MANUAL LAND SYNOP RH2M (%) 41746 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9895, expected range: -1.8241 0.7500
MANUAL LAND SYNOP RH2M (%) 41697 : out of range
Severe: rms_fgdepar=37.9682, expected range: 0.0000 27.2975
Severe: avg_pge=1.0000, expected range: -0.0460 0.0666
MANUAL LAND SYNOP RH2M (%) 38618 : out of range
Severe: rms_fgdepar=44.8227, expected range: 0.0000 25.3580
Severe: avg_pge=0.9990, expected range: -0.2931 0.3501
MANUAL LAND SYNOP RH2M (%) 43198 : out of range
Severe: rms_fgdepar=41.8861, expected range: 0.0000 28.5863
Severe: avg_pge=0.9909, expected range: -0.0071 0.0160
BUFR LAND SYNOP SURFACE PRESSURE (PA) 38045 : out of range
Severe: rms_fgdepar=397.2437, expected range: 0.0000 116.2572
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24588 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=662.1580, expected range: 0.0000 304.7155
BUFR LAND SYNOP RH2M (%) 28481 : out of range
Severe: rms_fgdepar=34.2749, expected range: 0.0000 19.3662
BUFR LAND SYNOP RH2M (%) 51656 : out of range
Severe: avg_pge=0.8374, expected range: -0.9324 0.7500
ship
All BUFR SHIP SYNOP WMO BLOCK 41 : all data missing
Severely_persistent: obs_number=0, expected range: 281.22 330.63
All BUFR SHIP SYNOP WMO BLOCK 42 : all data missing
Severely_persistent: obs_number=0, expected range: 241.70 359.07
All BUFR SHIP SYNOP WMO BLOCK 51 : all data missing
Severely_persistent: obs_number=0, expected range: 77.10 125.67
SHIP SURFACE PRESSURE (PA) ZCEF2 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=573.1884, expected range: -858.5835 718.3212
Severe: rms_fgdepar=573.1884, expected range: 0.0000 504.0265
SHIP SURFACE PRESSURE (PA) VRDK7 : out of range
Severe: avg_fgdepar=665.6776, expected range: -298.4748 288.4556
Severe: rms_fgdepar=665.6776, expected range: 0.0000 417.2984
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V7010 : out of range
Severe: avg_fgdepar=691.9565, expected range: -3.3332 276.4590
Severe: rms_fgdepar=854.6877, expected range: 0.0000 275.4321
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V2730 : out of range
Severe: avg_pge=0.8006, expected range: -1.0676 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) ZCEF2 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=573.1884, expected range: -824.9279 695.7027
Severe: rms_fgdepar=573.1884, expected range: 0.0000 515.0189
Severe: avg_pge=0.8091, expected range: -1.0276 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) CFL24 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=826.8597, expected range: -2550.9041 1977.0913
Severe: rms_fgdepar=826.8597, expected range: 0.0000 1566.0113
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRDK7 : out of range
Severe: avg_fgdepar=665.6776, expected range: -370.5908 334.4880
Severe: rms_fgdepar=665.6776, expected range: 0.0000 439.7676
Severe: avg_pge=0.8449, expected range: -0.7456 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) OWJI2 : out of range
Severe: avg_fgdepar=29.5690, expected range: -4.2379 11.6487
Severe: rms_fgdepar=29.5690, expected range: 0.0000 11.7141
Severe: avg_pge=0.9415, expected range: -1.0057 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 1701529 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8016, expected range: -1.2485 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6203703 : out of range
Severe: rms_fgdepar=461.8201, expected range: 0.0000 86.4208
DRIFTING BUOYS SURFACE PRESSURE (PA) 1501748 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-697.3012, expected range: -133.0646 116.4629
Severe: rms_fgdepar=697.7220, expected range: 0.0000 122.9101
Severe: avg_pge=0.9222, expected range: -0.2842 0.3699
metar
METAR SURFACE PRESSURE (PA) BIIS : out of range
Severe: rms_fgdepar=444.4502, expected range: 0.0000 146.1965
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 68817 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=15.9031, expected range: -4.4841 9.9992
Severely_persistent: rms_fgdepar=15.9899, expected range: 0.0000 10.0933
Severely_persistent: avg_est_pge=0.8185, expected range: -0.4103 0.7878
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-15.0005, expected range: -14.3560 -2.8580
Severely_persistent: rms_fgdepar=15.0741, expected range: 2.8880 14.4180
Severely_persistent: avg_est_pge=0.8781, expected range: 0.5882 0.9514
BUFR LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-14.9943, expected range: -14.3660 -2.9054
Severely_persistent: rms_fgdepar=15.0637, expected range: 2.9479 14.4218
Severely_persistent: avg_est_pge=0.8781, expected range: 0.5952 0.9462
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=0.8235, expected range: -0.0805 1.0726
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89002 : out of range
Severe: rms_fgdepar=10.2530, expected range: 0.0000 5.8555
METAR 2M TEMPERATURE (K) KSSC : out of range
Severe: avg_fgdepar=-15.2651, expected range: -2.6821 2.3694
Severe: rms_fgdepar=15.2651, expected range: 0.0000 5.9593
METAR 2M TEMPERATURE (K) FYRU : out of range
Severe: avg_fgdepar=-14.2245, expected range: -18.2232 9.0425
Severe: rms_fgdepar=14.2791, expected range: 0.0000 16.7468