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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2020-08-08 12:00

iasi
METOP-C IASI RADIANCES CHANNEL 230 : out of range
Considerable: avg_fgdepar=-0.0225, expected range: -0.0101 0.0132
cris
NPP CRIS RADIANCES CHANNEL 185 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1325, expected range: -0.1240 -0.1141
NPP CRIS RADIANCES CHANNEL 109 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1618, expected range: 0.1397 0.1515
NPP CRIS RADIANCES CHANNEL 106 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2385, expected range: 0.2064 0.2195
NPP CRIS RADIANCES CHANNEL 107 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1860, expected range: 0.1526 0.1561
NPP CRIS RADIANCES CHANNEL 108 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1441, expected range: 0.1151 0.1190
NPP CRIS RADIANCES CHANNEL 119 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1887, expected range: 0.1516 0.1678
NOAA20 CRIS RADIANCES CHANNEL 991 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2701, expected range: 0.3005 0.3277
NOAA20 CRIS RADIANCES CHANNEL 993 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1904, expected range: 0.2157 0.2481
NPP CRIS RADIANCES CHANNEL 177 : out of range
2 times in the last 10 days for at least one item
Severe: avg_biascorr=-0.0887, expected range: -0.0816 -0.0731
NOAA20 CRIS RADIANCES (148 channels affected) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=5144.0000, expected range: 19449.9686 26291.0213
NOAA20 CRIS RADIANCES CHANNEL 949 : out of range
Slight: avg_fgdepar=-0.0337, expected range: -0.0150 0.0586
gpsro
All COSMIC2-E5 GPSRO RISING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 268.24 3255.42
Atmospheric Motion Vector
GOES-17 AMV VIS1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 600-900 (HPA) : out of range
Considerable: obs_number=1202.0000, expected range: 1498.9136 1724.8364
Radiosondes
LAND TEMP TEMPERATURE (K) 61660 PRESSURE LAYER 0-300 (HPA) : out of range
32 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-14.7570, expected range: -18.5653 -12.2984
Severely_persistent: rms_fgdepar=21.4305, expected range: 17.8243 25.1186
LAND TEMP Q (G/KG) 38341 PRESSURE LAYER 900-1200 (HPA) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=7.2160, expected range: -1.8470 13.2085
Severely_persistent: rms_fgdepar=7.2672, expected range: 0.0000 13.2089
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: 8.3097 638.7891
Severe: obs_number=0.0000, expected range: 58.9969 377.0367
Severe: obs_number=0.0000, expected range: 3.2606 399.1394
All LAND TEMP ALL LAYERS WMO BLOCK 62 : all data missing
Severe: obs_number=0, expected range: 0.00 359.29
HIGH RESO LAND TEMP TEMPERATURE (K) (3 pressure layers affected) : out of range
Severe: avg_fgdepar=3.6776, expected range: -0.3376 0.5608
Severe: rms_fgdepar=4.2295, expected range: 0.3358 1.2974
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_pge=0.8228, expected range: -0.0644 0.1180
HIGH RESO LAND TEMP Q (G/KG) (2 pressure layers affected) : out of range
Severe: obs_number=132.0000, expected range: 192.2778 203.9444
BUFR TEMP DESCENT Q (G/KG) 10184 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.5960, expected range: 0.0000 1.1096
LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=97.0000, expected range: 48.8626 61.8874
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: obs_number=207.0000, expected range: 59.1711 87.3289
amdar
AMDAR TEMPERATURE (K) CNFKQP PRESSURE LAYER 900-1200 (HPA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-9.0772, expected range: -10.5553 5.2473
Severely_persistent: rms_fgdepar=10.5957, expected range: 0.0000 12.4627
AMDAR WIND VECTOR DIFF (M/S) BR379791 PRESSURE LAYER 300-600 (HPA) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8059, expected range: 0.0836 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) BTSX1DZA PRESSURE LAYER 0-300 (HPA) : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=20.0097, expected range: -36.4169 59.0992
Severely_persistent: rms_fgdepar=20.1517, expected range: 0.0000 60.2354
AMDAR WIND VECTOR DIFF (M/S) BR840975 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=29.2469, expected range: -12.9437 59.9998
Severe: rms_fgdepar=29.3205, expected range: 0.0000 59.9105
AMDAR WIND VECTOR DIFF (M/S) BR844748 PRESSURE LAYER 300-600 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8136, expected range: 0.4396 0.7500
AMDAR WIND VECTOR DIFF (M/S) (2 pressure layers affected) : missing
Severe: obs_number=0.0000, expected range: 0.0000 674.6147
WIGOS AMDAR WIND VECTOR DIFF (M/S) BTSX1DZA (2 pressure layers affecte : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8422, expected range: -1.7416 0.7500
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42834 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8426, expected range: -1.4518 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42654 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-954.3700, expected range: -615.9414 648.4142
Severely_persistent: rms_fgdepar=954.3700, expected range: 0.0000 433.4448
Severely_persistent: avg_pge=0.9372, expected range: -1.2276 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 91682 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8360, expected range: -0.3096 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 41600 : out of range
Severe: rms_fgdepar=447.4203, expected range: 0.0000 299.4574
Severe: avg_pge=0.8429, expected range: -1.0940 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 64510 : out of range
Severe: rms_fgdepar=302.3642, expected range: 0.0000 142.3328
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 63451 : out of range
Severe: avg_fgdepar=642.8389, expected range: -311.0216 868.8804
Severe: rms_fgdepar=642.8389, expected range: 0.0000 868.8804
Severe: avg_pge=0.8733, expected range: -1.0567 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 82915 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8073, expected range: -0.5788 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40675 : out of range
Severe: rms_fgdepar=603.2281, expected range: 0.0000 186.2298
MANUAL LAND SYNOP RH2M (%) 35361 : out of range
Severe: rms_fgdepar=38.7730, expected range: 0.0000 18.4310
MANUAL LAND SYNOP RH2M (%) 67791 : out of range
Severe: avg_pge=0.9630, expected range: -1.7850 0.7500
MANUAL LAND SYNOP RH2M (%) 66285 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9196, expected range: -0.8392 0.7500
MANUAL LAND SYNOP RH2M (%) 42237 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9978, expected range: -1.3106 0.7500
MANUAL LAND SYNOP RH2M (%) 35078 : out of range
Severe: rms_fgdepar=37.6589, expected range: 0.0000 11.1699
MANUAL LAND SYNOP RH2M (%) 36859 : out of range
Severe: avg_pge=0.9737, expected range: -1.3039 0.7500
BUFR LAND SYNOP Z (M) 08103 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=13.5078, expected range: 111.1929 212.5100
BUFR LAND SYNOP SURFACE PRESSURE (PA) 60200 : out of range
Severe: rms_fgdepar=594.9430, expected range: 0.0000 126.0025
BUFR LAND SYNOP SURFACE PRESSURE (PA) 72570 : out of range
Severe: rms_fgdepar=308.7016, expected range: 0.0000 124.7780
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48402 : out of range
Severe: rms_fgdepar=440.8993, expected range: 0.0000 220.6997
BUFR LAND SYNOP SURFACE PRESSURE (PA) 23443 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=348.6397, expected range: 0.0000 100.4026
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) : out of range
Considerable: obs_number=120.0000, expected range: 65.6455 92.6045
ship
AUTOMATIC SHIP SURFACE PRESSURE (PA) CFL24 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-730.5404, expected range: -2550.0597 1743.4174
Severely_persistent: rms_fgdepar=734.7665, expected range: 0.0000 1642.0706
SHIP SURFACE PRESSURE (PA) V7FF3 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=922.1764, expected range: 687.3208 1256.4130
Severely_persistent: rms_fgdepar=922.1764, expected range: 687.3208 1256.4130
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7FF3 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=922.1764, expected range: 687.3208 1256.4130
Severely_persistent: rms_fgdepar=922.1764, expected range: 687.3208 1256.4130
BUFR SHIP SYNOP SURFACE PRESSURE (PA) CFL24 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-730.5404, expected range: -2583.2956 1836.9686
Severely_persistent: rms_fgdepar=734.7665, expected range: 0.0000 1674.7841
Severely_persistent: avg_pge=0.9320, expected range: 0.0299 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) ASES01 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8206, expected range: -0.2847 0.7500
SHIP SURFACE PRESSURE (PA) OYID2 : out of range
Severe: avg_fgdepar=645.7784, expected range: -951.7742 2043.5636
Severe: rms_fgdepar=645.7784, expected range: 0.0000 2041.7150
SHIP SURFACE PRESSURE (PA) WGAH : out of range
Severe: avg_fgdepar=544.0609, expected range: -431.7182 299.7856
Severe: rms_fgdepar=544.5499, expected range: 0.0000 401.4565
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OYID2 : out of range
Severe: avg_fgdepar=645.7784, expected range: -905.9030 1966.1304
Severe: rms_fgdepar=645.7784, expected range: 0.0000 1964.4008
Severe: avg_pge=0.8493, expected range: -1.2164 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WGAH : out of range
Severe: avg_fgdepar=558.4219, expected range: -430.5556 294.9290
Severe: rms_fgdepar=558.8451, expected range: 0.0000 401.2713
BUFR SHIP SYNOP SURFACE PRESSURE (PA) PCHM : out of range
Severe: rms_fgdepar=522.0448, expected range: 0.0000 611.5421
BUFR SHIP SYNOP SURFACE PRESSURE (PA) LF3N : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=461.9517, expected range: 0.0000 171.6187
BUFR SHIP SYNOP SURFACE PRESSURE (PA) EIPT : out of range
Severe: avg_fgdepar=737.2770, expected range: -307.4815 4.9182
Severe: rms_fgdepar=737.2770, expected range: 10.4910 300.6763
Severe: avg_pge=0.8602, expected range: -0.1559 0.7500
BUFR SHIP SYNOP RH2M (%) DCQN : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9990, expected range: -0.9933 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 5601521 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-501.5018, expected range: -471.1994 335.2093
Severely_persistent: rms_fgdepar=501.5018, expected range: -489.8112 663.7053
Severely_persistent: avg_pge=0.9031, expected range: -0.8494 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1601531 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8794, expected range: 0.0738 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1501748 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=703.1448, expected range: -1468.1841 1178.1573
Severely_persistent: rms_fgdepar=703.8074, expected range: 0.0000 948.3020
Severely_persistent: avg_pge=0.9181, expected range: 0.0214 0.7500
t2m
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_fgdepar=-15.2185, expected range: -13.6906 -1.6994
Severely_persistent: rms_fgdepar=16.1705, expected range: 1.7493 13.7816
Severely_persistent: avg_est_pge=0.8602, expected range: 0.5680 0.9204
LAND TEMP 2M TEMPERATURE (K) 72376 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8316, expected range: -0.3566 1.4215
BUFR LAND SYNOP 2M TEMPERATURE (K) 85504 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=13.5007, expected range: -8.5926 13.1383
Severely_persistent: rms_fgdepar=13.6591, expected range: 0.0000 13.3750
BUFR LAND SYNOP 2M TEMPERATURE (K) 27415 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-17.9711, expected range: -20.8553 -12.3301
Severely_persistent: rms_fgdepar=17.9711, expected range: 12.9103 20.9949
BUFR LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.8912, expected range: -13.9217 -1.5779
Severely_persistent: rms_fgdepar=15.0005, expected range: 1.6063 14.0246
Severely_persistent: avg_est_pge=0.8461, expected range: 0.5597 0.9312
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 51777 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-14.1117, expected range: -18.2998 14.3184
Severe: rms_fgdepar=14.1117, expected range: 0.0000 13.3395
Severe: avg_est_pge=0.8302, expected range: -0.1369 1.1621
METAR 2M TEMPERATURE (K) BGKK : out of range
Severe: avg_fgdepar=12.3243, expected range: -0.2797 8.5814
Severe: rms_fgdepar=13.4532, expected range: 0.0000 8.7320
rh2m
LAND TEMP RH2M (%) 28951 : out of range
Severe: rms_fgdepar=35.6099, expected range: 0.0000 20.3072
All BUFR LAND SYNOP WMO BLOCK 76 : all data missing
Severe: obs_number=0, expected range: 71.57 308.86