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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-08-18 00:00

cris
NPP/CRIS RADIANCES (142 channels affected) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=10031.0000, expected range: 4772.3195 6275.4324
NPP/CRIS RADIANCES CHANNEL 717 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-0.1428, expected range: -0.0527 0.0714
NPP/CRIS RADIANCES CHANNEL 898 : out of range
Severe: avg_fgdepar=-0.6246, expected range: -0.1910 0.2700
NPP/CRIS RADIANCES CHANNEL 1173 : out of range
Severe: avg_fgdepar=-0.9455, expected range: -0.0994 0.1021
NPP/CRIS RADIANCES CHANNEL 1181 : out of range
Severe: avg_fgdepar=-0.1607, expected range: -0.0723 0.1020
NPP/CRIS RADIANCES CHANNEL 1189 : out of range
Severe: avg_fgdepar=-0.4818, expected range: -0.1265 0.1600
NPP/CRIS RADIANCES (23 channels affected) : out of range
1 times in the last 10 days for at least one item
Severe: stdev_fgdepar=3.1168, expected range: 0.1915 0.2784
NOAA20/CRIS RADIANCES (72 channels affected) : out of range
Considerable: obs_number=2511.0000, expected range: 2026.6967 2386.2747
atms
NPP/ATMS RADIANCES (7 channels affected) : out of range
Considerable: obs_number=3603.0000, expected range: 2926.1664 3427.7780
ssmis
DMSP-17/SSMIS RADIANCES (17 channels affected) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=10196.0000, expected range: 12246.6461 14280.7750
DMSP-18/SSMIS RADIANCES (12 channels affected) : out of range
Considerable: obs_number=11194.0000, expected range: 11857.9435 14180.7994
Geostationary CSR
GOES-15/IMAGER RADIANCES CHANNEL 2 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: obs_number=121352.0000, expected range: 17054.1010 35590.8990
GOES-15/IMAGER RADIANCES CHANNEL 3 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: obs_number=39005.0000, expected range: 3256.3865 15454.2802
GOES-16/ABI RADIANCES CHANNEL 2 : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=37538.0000, expected range: 77026.4274 105158.4147
GOES-16/ABI RADIANCES CHANNEL 3 : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=37536.0000, expected range: 77097.5443 105183.8242
GOES-16/ABI RADIANCES CHANNEL 4 : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=37762.0000, expected range: 77287.3480 105331.3362
Radiosondes
LAND TEMP TEMPERATURE (K) 43185 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=11.0751, expected range: 0.0000 5.1803
LAND TEMP TEMPERATURE (K) 24959 PRESSURE LAYER 300-600 (HPA) : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=8.4219, expected range: 0.0000 4.3052
LAND TEMP WIND VECTOR DIFF (M/S) 31873 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=17.0579, expected range: 0.0000 11.0966
Severe: avg_pge=0.8936, expected range: -0.9332 0.7500
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_biascorr=-0.0005, expected range: 0.0000 0.0000
HIGH RESO LAND TEMP Q (G/KG) (4 pressure layers affected) : out of range
Severe: obs_number=130.0000, expected range: 182.0136 206.2217
HIGH RESO LAND TEMP Q (G/KG) 07145 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=4.3964, expected range: 0.0000 1.6335
amdar
WIGOS AMDAR TEMPERATURE (K) PMGEIRJA (2 pressure layers affected) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=5.3843, expected range: 0.0000 1.3151
WIGOS AMDAR WIND VECTOR DIFF (M/S) PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_fgdepar=6.0629, expected range: 2.2389 4.1953
WIGOS AMDAR WIND VECTOR DIFF (M/S) LJWKJHBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.7603, expected range: 0.0000 9.6050
WIGOS AMDAR WIND VECTOR DIFF (M/S) VJ3H1DBA (2 pressure layers affecte : out of range
Severe: rms_fgdepar=25.5197, expected range: 0.0000 8.3874
Severe: avg_pge=0.8878, expected range: -0.3437 0.4118
WIGOS AMDAR WIND VECTOR DIFF (M/S) Y0VYNLRA PRESSURE LAYER 300-600 (HP : out of range
Severe: rms_fgdepar=17.1950, expected range: 0.0000 6.6247
WIGOS AMDAR WIND VECTOR DIFF (M/S) MX0023 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=50.5153, expected range: 0.6099 5.9260
Severe: avg_pge=0.9457, expected range: -0.2126 0.4377
WIGOS AMDAR WIND VECTOR DIFF (M/S) AU0159 PRESSURE LAYER 900-1200 (HPA : out of range
Severe: rms_fgdepar=16.0577, expected range: 0.0000 7.5123
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42473 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=1116.8976, expected range: 0.0000 436.1217
Severely_persistent: avg_pge=0.9478, expected range: -0.6285 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=0.9208, expected range: -0.7664 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
2 times in the last 10 days for at least one item
Severely_persistent: obs_number=209.0000, expected range: 228.1312 252.2022
Severe: avg_biascorr=3.6923, expected range: 0.0000 0.0000
BUFR LAND SYNOP SURFACE PRESSURE (PA) 81870 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=720.7331, expected range: 0.0000 167.9409
Severely_persistent: avg_pge=0.9433, expected range: 0.1315 0.7458
AUTOMATIC LAND SYNOP RH2M (%) : out of range
4 times in the last 10 days for at least one item
Severe: obs_number=418.0000, expected range: 880.9746 1066.1366
Severe: obs_number=206.0000, expected range: 1368.1650 1734.5918
AUTOMATIC LAND SYNOP RH2M (%) 68821 : out of range
Severe: avg_pge=0.9775, expected range: -0.5982 0.7159
AUTOMATIC LAND SYNOP RH2M (%) 68651 : out of range
Severe: avg_pge=0.9970, expected range: -0.6653 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 68727 : out of range
Severe: rms_fgdepar=58.5186, expected range: 0.0000 45.8968
Severe: avg_pge=0.9994, expected range: -0.0503 0.0642
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) : out of range
3 times in the last 10 days for at least one item
Severe: obs_number=1314.0000, expected range: 2589.4550 3056.2117
MANUAL LAND SYNOP RH2M (%) 17061 : out of range
Severe: rms_fgdepar=40.0957, expected range: 0.0000 17.0892
MANUAL LAND SYNOP RH2M (%) 68619 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9923, expected range: -1.5900 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: avg_pge=0.8710, expected range: -0.7256 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42367 : out of range
Severe: rms_fgdepar=388.9847, expected range: 0.0000 214.8616
Severe: avg_pge=0.8529, expected range: -0.8425 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 41759 : out of range
Severe: rms_fgdepar=303.0661, expected range: 0.0000 241.0700
Severe: avg_pge=0.8110, expected range: -0.6332 0.7500
BUFR LAND SYNOP RH2M (%) 70260 : out of range
Severe: avg_pge=0.9348, expected range: -1.0125 0.7500
BUFR LAND SYNOP RH2M (%) 72465 : out of range
Severe: rms_fgdepar=34.0709, expected range: 0.0000 24.8725
Severe: avg_pge=0.9049, expected range: 0.0008 0.0049
BUFR LAND SYNOP RH2M (%) 94236 : out of range
Severe: rms_fgdepar=19.0576, expected range: 0.0000 10.8580
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24462 : out of range
Severe: rms_fgdepar=546.9389, expected range: 0.0000 233.2166
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48935 : out of range
Severe: rms_fgdepar=507.3362, expected range: 0.0000 165.1032
Severe: avg_pge=0.8800, expected range: -0.5026 0.6148
ship
SHIP SURFACE PRESSURE (PA) ZCDM6 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8258, expected range: -1.3875 0.7500
SHIP SURFACE PRESSURE (PA) BQHZ : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8839, expected range: -1.2115 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=0.8446, expected range: 0.0882 0.7500
SHIP WIND VECTOR DIFF (M/S) ZCBU3 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9190, expected range: -0.8728 0.7500
SHIP WIND VECTOR DIFF (M/S) DBRE : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=23.4299, expected range: 0.0000 8.8070
Severe: avg_pge=0.9345, expected range: -0.4573 0.7500
SHIP SURFACE PRESSURE (PA) D5KR2 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=509.0265, expected range: 0.0000 312.5470
Severe: avg_pge=0.8557, expected range: -0.8192 0.7500
SHIP SURFACE PRESSURE (PA) 9HA2583 : out of range
Severe: avg_pge=0.8243, expected range: -0.5949 0.7500
SHIP SURFACE PRESSURE (PA) C6DD6 : out of range
Severe: avg_pge=0.8492, expected range: -0.6171 0.7500
SHIP SURFACE PRESSURE (PA) VRMY6 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=505.0145, expected range: 0.0000 324.5573
Severe: avg_pge=0.8704, expected range: -0.7503 0.7500
SHIP SURFACE PRESSURE (PA) 3ETA7 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8127, expected range: -0.7439 0.7500
SHIP SURFACE PRESSURE (PA) VRFT7 : out of range
Severe: rms_fgdepar=620.4005, expected range: 0.0000 339.8589
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 2101621 : out of range
Severe: rms_fgdepar=307.0523, expected range: 0.0000 108.1890
DRIFTING BUOYS SURFACE PRESSURE (PA) 2101618 : out of range
Severe: rms_fgdepar=311.1992, expected range: 0.0000 155.6086
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
Slight: obs_number=8468.0000, expected range: 8772.8761 10593.8806
metar
METAR SURFACE PRESSURE (PA) OINN : out of range
Severe: rms_fgdepar=383.0819, expected range: 0.0000 189.5115
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) : out of range
7 times in the last 10 days for at least one item
Severely_persistent: obs_number=208.0000, expected range: 1441.9806 1661.4248
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 72567 : out of range
Severe: rms_fgdepar=7.4286, expected range: 0.0000 4.1149
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89571 : out of range
Severe: rms_fgdepar=7.6061, expected range: 0.0000 3.6974
MANUAL LAND SYNOP 2M TEMPERATURE (K) 40655 : out of range
Severe: rms_fgdepar=10.4210, expected range: 0.0000 3.2117
METAR 2M TEMPERATURE (K) CYKD : out of range
Severe: rms_fgdepar=13.9237, expected range: 0.0000 3.3031
METAR 2M TEMPERATURE (K) KHLG : out of range
Severe: rms_fgdepar=8.3527, expected range: 0.0000 4.2372
METAR 2M TEMPERATURE (K) FKKL : out of range
Severe: rms_fgdepar=12.1166, expected range: 0.0000 6.5432
BUFR LAND SYNOP 2M TEMPERATURE (K) 60037 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=9.7061, expected range: 0.0000 4.2642
rh2m
MANUAL LAND SYNOP RH2M (%) 82098 : out of range
Severe: rms_fgdepar=39.3165, expected range: 0.0000 17.0902