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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2020-07-08 12:00

cris
NOAA20 CRIS RADIANCES CHANNEL 70 : out of range
Considerable: obs_number=2514.0000, expected range: 2038.4938 2415.2709
NOAA20 CRIS RADIANCES CHANNEL 72 : out of range
Considerable: obs_number=2503.0000, expected range: 2020.1418 2394.2112
NOAA20 CRIS RADIANCES CHANNEL 73 : out of range
Considerable: obs_number=2518.0000, expected range: 2037.5789 2419.5976
NOAA20 CRIS RADIANCES CHANNEL 74 : out of range
Considerable: obs_number=2496.0000, expected range: 2025.1894 2376.8106
NOAA20 CRIS RADIANCES CHANNEL 75 : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=2486.0000, expected range: 2004.9878 2355.7181
NOAA20 CRIS RADIANCES CHANNEL 76 : out of range
Considerable: obs_number=2501.0000, expected range: 2021.7839 2391.6279
NOAA20 CRIS RADIANCES CHANNEL 77 : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=2464.0000, expected range: 1965.5344 2347.4067
NOAA20 CRIS RADIANCES CHANNEL 78 : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=2472.0000, expected range: 1983.8274 2354.0549
NOAA20 CRIS RADIANCES CHANNEL 79 : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=2442.0000, expected range: 1920.3936 2337.4888
NOAA20 CRIS RADIANCES CHANNEL 81 : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=2453.0000, expected range: 1948.9761 2341.2592
saphir
All MEGHA-TROPIQUES SAPHIR ALLSKY ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 50.80 16607.27
gpsro
All KOMPSAT-5 GPSRO SETTING ALL HEIGHTS Global : all data missing
Severe: obs_number=0, expected range: 304.86 1310.29
COSMIC2-E5 GPSRO SETTING (20 impact heights affected) : out of range
Considerable: obs_number=482.0000, expected range: 1114.6172 3119.8443
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 20-21 (HPA) : out of range
20 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=0.0154, expected range: 0.0074 0.0113
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1-2 (HPA) : out of range
14 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=0.0224, expected range: 0.0023 0.0131
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 30-31 (HPA) : out of range
6 times in the last 10 days for at least one item
Slight: stdev_fgdepar=0.0239, expected range: 0.0090 0.0209
Radiosondes
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
3 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=4.5105, expected range: 1.3585 1.7466
Severely_persistent: avg_fgdepar=-7.7112, expected range: -1.8171 1.6846
Severely_persistent: rms_fgdepar=15.6897, expected range: 0.5642 2.8604
Severe: rms_fgdepar=5.4892, expected range: 0.9706 2.0413
Severe: rms_fgdepar=3.3713, expected range: 1.4670 1.8866
LAND TEMP TEMPERATURE (K) 61660 PRESSURE LAYER 0-300 (HPA) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-14.1147, expected range: -1.8359 1.2337
Severely_persistent: rms_fgdepar=20.9586, expected range: 0.0000 3.5532
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=6.5055, expected range: -3.9378 11.4583
Severely_persistent: rms_fgdepar=6.5056, expected range: 0.0000 11.3988
LAND TEMP WIND VECTOR DIFF (M/S) 61660 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.5616, expected range: 0.6829 8.9773
LAND TEMP WIND VECTOR DIFF (M/S) 26781 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=18.3076, expected range: 0.0000 7.7236
LAND TEMP Q (G/KG) 40811 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.4709, expected range: 0.0000 1.3776
LAND TEMP Q (G/KG) 23415 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.0515, expected range: 0.0000 1.1580
All LAND TEMP ALL LAYERS WMO BLOCK 16 : all data missing
Severe: obs_number=0, expected range: 39.77 91.98
All LAND TEMP ALL LAYERS WMO BLOCK 47 : all data missing
Severe: obs_number=0, expected range: 64.38 145.87
HIGH RESO LAND TEMP TEMPERATURE (K) 72659 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=6.7667, expected range: 0.0000 2.9340
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : missing
4 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 26.3532 592.3976
Severe: obs_number=0.0000, expected range: 0.0000 450.3003
Severe: obs_number=0.0000, expected range: 70.6139 125.3861
Severe: obs_number=0.0000, expected range: 56.9969 375.0367
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 72659 PRESSURE LAYER 900-12 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=23.8263, expected range: -18.7906 31.0303
Severe: rms_fgdepar=24.4883, expected range: 0.0000 31.8308
HIGH RESO LAND TEMP Q (G/KG) 52203 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.6631, expected range: 0.0360 1.8400
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 0-300 (HPA) : missing
1 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 28.0313 276.4013
Severe: obs_number=0.0000, expected range: 0.0000 537.4027
LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: rms_fgdepar=14.2640, expected range: 1.7764 9.7268
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) VJ3H1DBA PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=26.9582, expected range: -18.4258 26.7195
Severe: rms_fgdepar=32.6877, expected range: -19.9292 29.6120
WIGOS AMDAR Q (G/KG) BPZGUWRA PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-7.6946, expected range: -11.7876 12.7445
Severe: rms_fgdepar=7.6985, expected range: 0.4060 7.9256
WIGOS AMDAR Q (G/KG) GRBWUUZA PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=6.0064, expected range: 0.2111 7.6091
synop
AUTOMATIC LAND SYNOP RH2M (%) 35182 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9289, expected range: -0.6576 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 89625 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-566.9009, expected range: -746.3508 547.9900
Severely_persistent: rms_fgdepar=566.9009, expected range: -530.2618 736.4665
Severely_persistent: avg_pge=0.8705, expected range: -1.4834 0.7500
MANUAL LAND SYNOP RH2M (%) 42776 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9071, expected range: 0.0192 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43012 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8558, expected range: -0.9181 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48391 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=1249.2079, expected range: -2073.9849 2334.3064
Severely_persistent: rms_fgdepar=1249.5722, expected range: -1848.7158 2260.0427
Severely_persistent: avg_pge=0.9550, expected range: -1.7057 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 12215 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-706.3121, expected range: -608.8070 593.8873
Severely_persistent: rms_fgdepar=706.4218, expected range: 0.0000 622.5715
Severely_persistent: avg_pge=0.9461, expected range: -1.1248 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 53772 : out of range
Severe: rms_fgdepar=300.2767, expected range: 0.0000 152.5242
MANUAL LAND SYNOP RH2M (%) 42933 : out of range
Severe: avg_pge=0.9932, expected range: -0.2108 0.2658
MANUAL LAND SYNOP RH2M (%) 41746 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9986, expected range: -1.3705 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 41725 : out of range
Severe: rms_fgdepar=481.3862, expected range: 0.0000 203.3252
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 62309 : out of range
Severe: rms_fgdepar=555.3676, expected range: 15.5990 98.9480
BUFR LAND SYNOP RH2M (%) 08072 : out of range
Severe: rms_fgdepar=30.3657, expected range: 0.2287 13.3487
MANUAL LAND SYNOP RH2M (%) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=139.0000, expected range: 108.8056 122.7499
Considerable: obs_number=113.0000, expected range: 65.7418 84.2582
BUFR LAND SYNOP RH2M (%) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=168.0000, expected range: 148.1311 155.2022
Considerable: obs_number=236.0000, expected range: 259.4655 272.6345
Considerable: obs_number=216.0000, expected range: 290.4969 334.2399
Considerable: obs_number=205.0000, expected range: 261.1874 305.1459
Considerable: obs_number=125.0000, expected range: 163.3642 196.8463
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
Considerable: obs_number=709.0000, expected range: 754.8697 839.8803
ship
SHIP SURFACE PRESSURE (PA) V7FF3 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=1003.2456, expected range: 782.0845 1135.4842
Severely_persistent: rms_fgdepar=1003.2456, expected range: 782.0845 1135.4842
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) OZDQ2 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=23.5278, expected range: -26.9156 59.1307
Severely_persistent: rms_fgdepar=23.5278, expected range: 0.0000 59.1307
Severely_persistent: avg_pge=0.9300, expected range: 0.1953 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7FF3 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=1003.2456, expected range: 704.8700 1209.4837
Severely_persistent: rms_fgdepar=1003.2456, expected range: 704.8700 1209.4837
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9V9763 : out of range
Severe: rms_fgdepar=16.6586, expected range: 0.0000 10.3119
Severe: avg_pge=0.8853, expected range: -0.9185 0.7500
All BUFR SHIP SYNOP WMO BLOCK 41 : all data missing
Severe: obs_number=0, expected range: 281.77 332.70
All BUFR SHIP SYNOP WMO BLOCK 42 : all data missing
Severe: obs_number=0, expected range: 243.92 350.55
All BUFR SHIP SYNOP WMO BLOCK 51 : all data missing
Severe: obs_number=0, expected range: 79.34 124.54
BUFR SHIP SYNOP SURFACE PRESSURE (PA) : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=4014.0000, expected range: 5608.6881 6656.3707
Considerable: obs_number=776.0000, expected range: 1943.5723 2536.1924
Considerable: obs_number=84.0000, expected range: 943.8399 1157.6895
buoy
DRIBU SURFACE PRESSURE (PA) 23491 : out of range
Severe: avg_pge=0.8307, expected range: -0.2764 0.7500
MOORED BUOYS SURFACE PRESSURE (PA) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=2688.0000, expected range: 931.2335 1080.1783
Severe: obs_number=838.0000, expected range: 475.0804 519.2725
Severe: obs_number=1338.0000, expected range: 152.6835 162.0165
Severe: obs_number=98.0000, expected range: 141.6835 151.0165
Severe: obs_number=410.0000, expected range: 101.3686 112.2104
Severe: obs_number=488.0000, expected range: 130.9917 164.5872
Severe: obs_number=122.0000, expected range: 83.9689 87.7153
Considerable: obs_number=168.0000, expected range: 202.6830 251.5392
DRIFTING BUOYS SURFACE PRESSURE (PA) 1701583 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=538.5955, expected range: -377.4797 443.1833
Severe: rms_fgdepar=538.5955, expected range: 0.0000 424.1950
Severe: avg_pge=0.8919, expected range: -0.9054 0.7500
MOORED BUOYS WIND VECTOR DIFF (M/S) : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=405.0000, expected range: 735.9300 859.5994
metar
METAR SURFACE PRESSURE (PA) SBCB : out of range
Severe: rms_fgdepar=340.3958, expected range: 0.0000 152.3832
METAR SURFACE PRESSURE (PA) CYXE : out of range
Severe: rms_fgdepar=336.8914, expected range: 0.0000 125.0158
METAR SURFACE PRESSURE (PA) EGYE : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=431.3610, expected range: 0.0000 154.0431
snow
BUFR LAND SYNOP SNOW (CM) 01035 : out of range
34 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=89.1902, expected range: 87.6727 132.5729
Severely_persistent: rms_fgdepar=89.2042, expected range: 87.6737 132.5763
t2m
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89009 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8112, expected range: 0.1038 1.1562
BUFR LAND SYNOP 2M TEMPERATURE (K) 27415 : out of range
28 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-17.1126, expected range: -21.8817 -12.6914
Severely_persistent: rms_fgdepar=17.1126, expected range: 12.8831 21.7617
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 68380 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=15.2652, expected range: -6.4471 7.8730
Severe: rms_fgdepar=15.6035, expected range: 0.0000 7.2318
Severe: avg_est_pge=0.8527, expected range: -0.3935 0.8085
AUTOMATIC 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=0.8195, expected range: -0.2186 1.0345
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89606 : out of range
4 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8267, expected range: 0.1523 1.1341
BUFR LAND SYNOP 2M TEMPERATURE (K) 68380 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=15.4705, expected range: -6.4434 8.9386
Severe: rms_fgdepar=15.9705, expected range: 0.0000 7.4276
BUFR LAND SYNOP 2M TEMPERATURE (K) 38337 : out of range
Severe: rms_fgdepar=13.5145, expected range: 0.0000 7.0795
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=0.8111, expected range: -0.1674 0.9964
MANUAL LAND SYNOP 2M TEMPERATURE (K) : out of range
Considerable: obs_number=263.0000, expected range: 202.7855 235.6851
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
Considerable: obs_number=746.0000, expected range: 815.7440 867.3671