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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-08-12 00:00

iasi
METOP-A/IASI RADIANCES CHANNEL 6458 : out of range
Severe: obs_number=20903.0000, expected range: 2157.2191 9584.6979
METOP-A/IASI RADIANCES CHANNEL 272 : out of range
2 times in the last 10 days for at least one item
Severe: stdev_fgdepar=0.2901, expected range: 0.2035 0.2580
METOP-B/IASI RADIANCES (259 channels affected) : out of range
Severe: obs_number=16608.0000, expected range: 20663.1386 23630.5983
METOP-A/IASI RADIANCES CHANNEL 271 : out of range
Considerable: stdev_fgdepar=0.2969, expected range: 0.1908 0.2624
METOP-B/IASI RADIANCES CHANNEL 249 : out of range
Considerable: stdev_fgdepar=0.2545, expected range: 0.2172 0.2444
cris
NPP/CRIS RADIANCES (121 channels affected) : out of range
Severe: avg_biascorr=0.2565, expected range: 0.0522 0.2148
NPP/CRIS RADIANCES (161 channels affected) : out of range
Severe: obs_number=16157.0000, expected range: 6053.8390 8397.4073
NPP/CRIS RADIANCES (26 channels affected) : out of range
Severe: stdev_fgdepar=3.2924, expected range: 0.1915 0.2784
NPP/CRIS RADIANCES (17 channels affected) : out of range
Severe: avg_fgdepar=-0.3690, expected range: -0.1188 0.1434
NOAA20/CRIS RADIANCES CHANNEL 101 : out of range
Considerable: stdev_fgdepar=0.1253, expected range: 0.0647 0.1091
ssmis
DMSP-18/SSMIS RADIANCES CHANNEL 6 : out of range
3 times in the last 10 days for at least one item
Considerable: obs_number=1738.0000, expected range: 350.6409 1351.7935
DMSP-18/SSMIS RADIANCES CHANNEL 7 : out of range
3 times in the last 10 days for at least one item
Considerable: obs_number=1748.0000, expected range: 353.8088 1322.8126
DMSP-18/SSMIS RADIANCES CHANNEL 10 : out of range
3 times in the last 10 days for at least one item
Considerable: obs_number=1728.0000, expected range: 349.1427 1340.3012
DMSP-18/SSMIS RADIANCES CHANNEL 11 : out of range
3 times in the last 10 days for at least one item
Considerable: obs_number=1726.0000, expected range: 349.6044 1297.8109
Atmospheric Motion Vector
GOES-16/AMV IR1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Considerable: stdev_press=37.1708, expected range: 23.8852 34.4413
Geostationary CSR
METEOSAT-11/SEVIRI RADIANCES CHANNEL 2 : out of range
Considerable: stdev_fgdepar=0.7950, expected range: 0.8499 1.0510
Radiosondes
LAND TEMP TEMPERATURE (K) 30673 PRESSURE LAYER 900-1200 (HPA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8490, expected range: -1.4991 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 54374 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=15.5124, expected range: 0.0000 6.5871
LAND TEMP TEMPERATURE (K) 74455 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=8.1561, expected range: 0.2682 2.3117
LAND TEMP TEMPERATURE (K) 36003 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=6.5663, expected range: 0.0000 3.0734
LAND TEMP TEMPERATURE (K) 31977 PRESSURE LAYER 600-900 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=6.8798, expected range: 0.0000 3.3816
Severe: avg_pge=0.8226, expected range: -0.6387 0.7500
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 01001 PRESSURE LAYER 900-12 : out of range
Severe: rms_fgdepar=15.5772, expected range: 0.0000 7.4331
All HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) ALL LAYERS Missing
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) KFXVGABA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.4524, expected range: 0.0000 7.5138
WIGOS AMDAR WIND VECTOR DIFF (M/S) BTSX1DZA PRESSURE LAYER 300-600 (HP : out of range
Severe: avg_pge=0.8143, expected range: -1.1917 0.7500
WIGOS AMDAR Q (G/KG) XWGY0OZA PRESSURE LAYER 900-1200 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9576, expected range: -1.1819 0.7500
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 67083 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_pge=0.8316, expected range: -0.2252 0.7500
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42711 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8156, expected range: -1.4638 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43021 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8096, expected range: -1.4414 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43133 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9061, expected range: 0.2891 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 60417 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8379, expected range: 0.3510 0.7500
MANUAL LAND SYNOP RH2M (%) 40016 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9297, expected range: -1.6819 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43260 : out of range
Severe: avg_pge=0.8018, expected range: -1.2228 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 86221 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8174, expected range: -0.7511 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42851 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=381.0123, expected range: 0.0000 273.5000
Severe: avg_pge=0.8396, expected range: -0.8976 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42343 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=489.6883, expected range: 0.0000 304.0064
Severe: avg_pge=0.8835, expected range: -0.7147 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43083 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8258, expected range: -1.1609 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42744 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=356.8282, expected range: 0.0000 259.2893
Severe: avg_pge=0.8453, expected range: -1.1083 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=61.0000, expected range: 60.0000 60.0000
Severe: avg_biascorr=12.9870, expected range: -1.8890 4.4847
MANUAL LAND SYNOP RH2M (%) 40821 : out of range
Severe: rms_fgdepar=19.7135, expected range: 0.0000 5.5677
Severe: rms_fgdepar=15.0622, expected range: 0.0000 4.8589
MANUAL LAND SYNOP RH2M (%) 38933 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9698, expected range: -0.5538 0.7500
MANUAL LAND SYNOP RH2M (%) 42935 : out of range
Severe: rms_fgdepar=45.9102, expected range: 0.0000 22.1211
Severe: avg_pge=0.9972, expected range: 0.0004 0.0056
MANUAL LAND SYNOP RH2M (%) 35026 : out of range
Severe: rms_fgdepar=38.7751, expected range: 0.0000 19.4216
MANUAL LAND SYNOP RH2M (%) 94466 : out of range
Severe: avg_pge=0.9069, expected range: -0.9962 0.7500
MANUAL LAND SYNOP Z (M) 38856 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9770, expected range: -1.3152 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48080 : out of range
Severe: rms_fgdepar=480.2438, expected range: 0.0000 254.3332
BUFR LAND SYNOP SURFACE PRESSURE (PA) 29876 : out of range
Severe: rms_fgdepar=529.7644, expected range: 0.0000 180.7248
BUFR LAND SYNOP RH2M (%) 72360 : out of range
Severe: rms_fgdepar=36.6439, expected range: -22.0099 29.5699
Severe: avg_pge=0.9288, expected range: -0.7592 0.7500
BUFR LAND SYNOP RH2M (%) 16084 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8385, expected range: -1.2309 0.7500
BUFR LAND SYNOP RH2M (%) 94415 : out of range
Severe: rms_fgdepar=41.2977, expected range: 0.0000 18.4740
Severe: avg_pge=0.8358, expected range: -0.0058 0.0126
BUFR LAND SYNOP RH2M (%) 94318 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9876, expected range: -1.7981 0.7500
ship
AUTOMATIC SHIP SURFACE PRESSURE (PA) 8TAP : out of range
10 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=784.1331, expected range: -446.2300 660.6841
Severely_persistent: avg_pge=0.9167, expected range: -1.4549 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) LF4J : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8837, expected range: 0.1439 0.7500
SHIP SURFACE PRESSURE (PA) OXES2 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9102, expected range: -1.3848 0.7500
SHIP SURFACE PRESSURE (PA) ZCBU5 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8256, expected range: -1.1996 0.7500
SHIP SURFACE PRESSURE (PA) VCXF : out of range
Severe: rms_fgdepar=349.5614, expected range: 0.0000 160.1099
SHIP WIND VECTOR DIFF (M/S) DGXS : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=18.6065, expected range: 0.0000 13.0324
Severe: avg_pge=0.8827, expected range: -0.9431 0.7500
ABBREVIATED SHIP WIND VECTOR DIFF (M/S) 9HJC9 : out of range
Severe: rms_fgdepar=15.3101, expected range: 0.0000 13.3934
Severe: avg_pge=0.8929, expected range: -0.7183 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) : out of range
Considerable: obs_number=1317.0000, expected range: 1031.8378 1242.6066
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 3100866 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=355.5070, expected range: 0.0000 116.2590
Severe: avg_pge=0.8530, expected range: -0.3560 0.3990
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_biascorr=7.7419, expected range: 0.0000 0.0000
metar
METAR SURFACE PRESSURE (PA) FQMA : out of range
Severe: rms_fgdepar=315.8397, expected range: 0.0000 158.7523
METAR SURFACE PRESSURE (PA) SBCG : out of range
Severe: rms_fgdepar=344.6025, expected range: 0.0000 160.7718
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89504 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8333, expected range: 0.7426 0.8933
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8098, expected range: 0.6987 0.9075
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89578 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8744, expected range: 0.1411 1.1955
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89504 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8327, expected range: 0.7497 0.8968
BUFR LAND SYNOP 2M TEMPERATURE (K) 08026 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=14.6343, expected range: 0.0000 5.6285
Severely_persistent: avg_est_pge=0.8053, expected range: -0.1341 0.4403
BUFR LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8114, expected range: 0.6929 0.9127
BUFR LAND SYNOP 2M TEMPERATURE (K) 89578 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8751, expected range: 0.1470 1.1941
MANUAL LAND SYNOP 2M TEMPERATURE (K) 83386 : out of range
Severe: rms_fgdepar=7.3852, expected range: 0.0000 4.1161
METAR 2M TEMPERATURE (K) SKBG : out of range
Severe: rms_fgdepar=7.8244, expected range: 0.0000 3.8491
METAR 2M TEMPERATURE (K) KHRT : out of range
Severe: rms_fgdepar=10.1366, expected range: 0.0000 4.7134
BUFR LAND SYNOP 2M TEMPERATURE (K) 89507 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8160, expected range: 0.3330 0.9227
rh2m
METAR RH2M (%) KQXT : out of range
Severe: rms_fgdepar=20.9218, expected range: 0.0000 9.0002