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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-09-27 00:00

cris
NPP CRIS RADIANCES CHANNEL 409 : out of range
3 times in the last 10 days for at least one item
Severe: avg_biascorr=0.0444, expected range: 0.0343 0.0400
airs
AQUA AIRS RADIANCES CHANNEL 92 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2307, expected range: -0.2047 -0.1972
AQUA AIRS RADIANCES CHANNEL 93 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1020, expected range: -0.0662 -0.0661
AQUA AIRS RADIANCES CHANNEL 105 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1242, expected range: 0.1413 0.1461
AQUA AIRS RADIANCES CHANNEL 117 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0052, expected range: 0.0319 0.0352
AQUA AIRS RADIANCES CHANNEL 123 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1080, expected range: -0.0765 -0.0760
AQUA AIRS RADIANCES CHANNEL 20 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1380, expected range: 0.0807 0.1119
AQUA AIRS RADIANCES CHANNEL 69 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1381, expected range: -0.2643 -0.2410
Severely_persistent: avg_biascorr=-0.3619, expected range: -0.9713 -0.6894
AQUA AIRS RADIANCES CHANNEL 104 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0366, expected range: -0.1126 -0.0869
AQUA AIRS RADIANCES CHANNEL 110 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0255, expected range: -0.0872 -0.0727
AQUA AIRS RADIANCES CHANNEL 116 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0467, expected range: -0.1324 -0.1103
AQUA AIRS RADIANCES CHANNEL 128 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0612, expected range: -0.5662 -0.2828
Severely_persistent: avg_biascorr=-0.1491, expected range: -0.1094 -0.0859
AQUA AIRS RADIANCES CHANNEL 129 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0618, expected range: -0.5029 -0.2529
Severely_persistent: avg_biascorr=-0.2722, expected range: -0.2300 -0.2059
AQUA AIRS RADIANCES CHANNEL 138 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0731, expected range: -0.2629 -0.1068
AQUA AIRS RADIANCES CHANNEL 1869 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1688, expected range: 0.2331 0.2348
mhs
NOAA-19 MHS ALLSKY RADIANCES CHANNEL 4 : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=41785.0000, expected range: 46063.0772 48836.7978
NOAA-19 MHS ALLSKY RADIANCES CHANNEL 5 : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=25358.0000, expected range: 28346.1987 31073.5513
mwhs2
All FY-3C MWHS2 ALLSKY ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 3794.65 26157.02
FY-3D MWHS2 ALLSKY RADIANCES (5 channels affected) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=12191.0000, expected range: 49611.6333 61814.9917
FY-3D MWHS2 ALLSKY RADIANCES CHANNEL 13 : out of range
1 times in the last 10 days for at least one item
Severe: stdev_norm_fgdepar=0.5698, expected range: 0.6394 0.7160
atms
NPP ATMS RADIANCES CHANNEL 10 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2264, expected range: -0.1940 -0.1703
NPP ATMS RADIANCES CHANNEL 11 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1848, expected range: -0.1497 -0.1221
NPP ATMS RADIANCES CHANNEL 12 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2604, expected range: -0.2092 -0.1694
NPP ATMS RADIANCES CHANNEL 8 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.6845, expected range: -0.6076 -0.5076
NPP ATMS RADIANCES CHANNEL 9 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.5778, expected range: -0.4580 -0.4128
NOAA20 ATMS RADIANCES CHANNEL 12 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.3649, expected range: -0.3168 -0.2729
NOAA20 ATMS RADIANCES CHANNEL 8 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.7519, expected range: -0.5950 -0.5925
ssmis
DMSP-17 SSMIS RADIANCES CHANNEL 17 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-2.4634, expected range: -2.8845 -2.6872
DMSP-17 SSMIS RADIANCES CHANNEL 11 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_norm_fgdepar=-0.1617, expected range: -0.1309 -0.0899
resat
NOAA-19 SBUV OZONE, TOP (21 pressure layers affected) : out of range
19 times in the last 10 days for at least one item
Severely_persistent: obs_number=1.0000, expected range: 51.2578 58.0036
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 10-11 (HPA) : out of range
21 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=0.0000, expected range: 0.0040 0.0061
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1010-1011 (HPA) : out of range
8 times in the last 10 days for at least one item
Slight: avg_fgdepar=-3.9288, expected range: -3.3301 -3.3301
Radiosondes
LAND TEMP TEMPERATURE (K) 30965 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=7.4347, expected range: 0.1422 1.8935
Severe: avg_pge=0.8271, expected range: -0.2575 0.4010
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : missing
Severe: obs_number=0.0000, expected range: 0.0000 269.6572
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA : missing
Severe: obs_number=0.0000, expected range: 94.4354 99.0646
amdar
WIGOS AMDAR TEMPERATURE (K) LEBUNVZA PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8402, expected range: -0.9784 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) GKJGUWRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.4456, expected range: 0.2484 5.0227
Severe: avg_pge=0.8207, expected range: -0.0844 0.1305
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 07460 PRESSURE LAYER 300-600 : out of range
Severe: rms_fgdepar=15.1037, expected range: 0.0000 5.9283
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : missing
4 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 0.0000 1301.6213
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 96645 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=19.6473, expected range: 0.0000 10.9946
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=276.8358, expected range: 0.0000 129.2209
AUTOMATIC LAND SYNOP RH2M (%) 68331 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=30.0796, expected range: 0.0000 6.9741
AUTOMATIC LAND SYNOP RH2M (%) 35157 : out of range
Severe: rms_fgdepar=38.5424, expected range: 2.8424 19.0845
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 47971 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=321.6883, expected range: 0.0000 96.7055
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 36982 : out of range
Severe: avg_fgdepar=912.3956, expected range: 14.2922 242.0524
Severe: rms_fgdepar=912.3956, expected range: 14.2922 242.0524
Severe: avg_pge=0.9202, expected range: -0.5358 0.7500
MANUAL LAND SYNOP RH2M (%) 67280 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9370, expected range: -0.5459 0.7374
MANUAL LAND SYNOP RH2M (%) 67441 : out of range
Severe: avg_fgdepar=53.2179, expected range: -38.2848 58.1399
Severe: rms_fgdepar=53.2179, expected range: 0.0000 50.7021
Severe: avg_pge=0.9895, expected range: -0.0316 0.0471
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 63870 : out of range
Severe: rms_fgdepar=347.9032, expected range: 0.0000 85.6722
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 62011 : out of range
Severe: rms_fgdepar=346.2544, expected range: 0.0000 170.5367
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83522 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8441, expected range: 0.6188 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83364 : out of range
Severe: avg_fgdepar=-938.9257, expected range: -247.0710 124.6661
Severe: rms_fgdepar=938.9257, expected range: 0.0000 247.0710
Severe: avg_pge=0.9318, expected range: -1.2079 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 14365 : out of range
Severe: rms_fgdepar=326.5899, expected range: 6.5765 97.6881
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48921 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8257, expected range: -1.2176 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48952 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=515.4267, expected range: -1239.7167 1682.9762
Severe: rms_fgdepar=522.8854, expected range: 0.0000 879.6767
Severe: avg_pge=0.8756, expected range: 0.4382 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94834 : out of range
Severe: rms_fgdepar=350.5141, expected range: 0.0000 76.8042
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24684 : out of range
Severe: rms_fgdepar=350.7247, expected range: 0.0000 106.4512
BUFR LAND SYNOP SURFACE PRESSURE (PA) 62455 : out of range
Severe: avg_pge=0.8431, expected range: -1.1348 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 36736 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8493, expected range: -0.4181 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 14317 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=491.0917, expected range: 0.0000 105.4906
ship
SHIP WIND VECTOR DIFF (M/S) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8288, expected range: -0.9909 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OWSC2 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=558.6857, expected range: -609.6654 1140.5753
Severely_persistent: rms_fgdepar=558.6857, expected range: 0.0000 1055.8810
BUFR SHIP SYNOP SURFACE PRESSURE (PA) ZCDH7 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-540.0571, expected range: -1212.3090 1132.6849
Severely_persistent: rms_fgdepar=540.0571, expected range: 0.0000 1296.0106
Severely_persistent: avg_pge=0.8383, expected range: -1.2988 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) KIAB : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=647.5897, expected range: 46.3836 1192.9999
Severely_persistent: rms_fgdepar=647.5897, expected range: 47.4770 1192.1318
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VABC : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=893.1725, expected range: -1577.7094 2346.7070
Severely_persistent: rms_fgdepar=893.1967, expected range: 0.0000 1882.3094
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VRDW2 : out of range
Severe: rms_fgdepar=17.0601, expected range: 0.0000 7.7418
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRDW2 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=630.9963, expected range: -537.6824 535.6442
Severe: rms_fgdepar=638.8364, expected range: -320.0597 474.7752
Severe: avg_pge=0.8244, expected range: -0.8069 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) D5LH3 : out of range
Severe: avg_fgdepar=564.5703, expected range: -293.2890 475.5138
Severe: rms_fgdepar=571.6480, expected range: 0.0000 440.5756
Severe: avg_pge=0.8215, expected range: -0.6953 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V6814 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8271, expected range: -1.3496 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6ZS6 : out of range
Severe: avg_fgdepar=842.9301, expected range: -537.1910 573.9764
Severe: rms_fgdepar=846.2966, expected range: 0.0000 426.1690
Severe: avg_pge=0.8777, expected range: -1.0162 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V6249 : out of range
Severe: avg_fgdepar=-720.0192, expected range: -485.5619 348.5078
Severe: rms_fgdepar=720.0192, expected range: 0.0000 423.1592
Severe: avg_pge=0.8793, expected range: -1.1657 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 7JQF : out of range
Severe: avg_fgdepar=-544.8308, expected range: -1135.6064 217.1216
Severe: rms_fgdepar=544.8308, expected range: 0.0000 1052.7467
BUFR SHIP SYNOP SURFACE PRESSURE (PA) DCQN : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-1009.4664, expected range: -527.8135 401.4440
Severe: rms_fgdepar=1009.4664, expected range: 0.0000 310.4376
Severe: avg_pge=0.9141, expected range: -1.0568 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 6401591 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=467.9667, expected range: -272.0871 404.2053
Severe: avg_pge=0.8744, expected range: -0.4258 0.5202
metar
METAR SURFACE PRESSURE (PA) HTMH : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=981.2335, expected range: 702.3612 1005.9417
Severely_persistent: rms_fgdepar=981.2335, expected range: 703.0780 1005.6396
METAR SURFACE PRESSURE (PA) LBWB : out of range
Severe: avg_fgdepar=511.2558, expected range: -163.8821 85.1455
Severe: rms_fgdepar=715.0627, expected range: 8.0797 102.7279
METAR SURFACE PRESSURE (PA) LIEC : out of range
Severe: rms_fgdepar=498.3572, expected range: 0.0000 267.8835
AUTOMATIC METAR SURFACE PRESSURE (PA) LIRK : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=547.2222, expected range: 0.0000 966.1663
snow
BUFR LAND SYNOP SNOW (CM) _MF1EB15 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-780.4668, expected range: -804.4850 -751.1312
BUFR LAND SYNOP SNOW (CM) _MF1EB15 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=780.4682, expected range: 751.6893 804.0988
BUFR LAND SYNOP SNOW (CM) _MF1378B : out of range
Severe: rms_fgdepar=27.0979, expected range: 0.5372 14.7943
t2m
METAR 2M TEMPERATURE (K) KTLH : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-17.4708, expected range: -25.6470 3.0662
Severely_persistent: rms_fgdepar=17.4708, expected range: 2.2253 21.9036
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71652 : out of range
Severe: avg_fgdepar=-14.5225, expected range: -12.3631 9.9323
Severe: rms_fgdepar=14.7796, expected range: 0.0000 10.1460
METAR 2M TEMPERATURE (K) SKPP : out of range
Severe: avg_fgdepar=15.0316, expected range: -2.7749 8.2665
Severe: rms_fgdepar=15.0316, expected range: 0.0000 7.8117
BUFR LAND SYNOP 2M TEMPERATURE (K) 71652 : out of range
Severe: avg_fgdepar=-13.9552, expected range: -11.3908 8.9479
Severe: rms_fgdepar=14.2223, expected range: 0.0225 9.3963
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13804 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-15.8810, expected range: -52.9272 38.8337
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13804 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=16.0193, expected range: 9.0614 25.1190