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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-11-18 12:00

AMSUA Pacific RARS
All NOAA-18 AMSUA ALL SKY CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 359.87 1681.12
All NOAA-19 AMSUA ALL SKY CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 114.61 1466.89
iasi
METOP-C IASI RADIANCES CHANNEL 1658 : out of range
1 times in the last 10 days for at least one item
Considerable: avg_biascorr=0.0842, expected range: 0.1059 0.1400
mhs
NOAA-19 MHS ALLSKY RADIANCES CHANNEL 4 : out of range
Slight: obs_number=42311.0000, expected range: 45634.1536 48100.9053
NOAA-19 MHS ALLSKY RADIANCES CHANNEL 5 : out of range
Slight: obs_number=25564.0000, expected range: 26579.2240 29961.3642
Atmospheric Motion Vector
All HIMAWARI-8 AMV CLOUDY WV3 ALL LAYERS Global : all data missing
Severely_persistent: obs_number=0, expected range: 256.69 867.14
Radiosondes
LAND TEMP TEMPERATURE (K) 27730 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=6.0545, expected range: 0.1139 1.7303
LAND TEMP Q (G/KG) 96685 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=4.1464, expected range: 0.0000 2.3058
HIGH RESO LAND TEMP TEMPERATURE (K) 87623 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_fgdepar=10.3812, expected range: -1.5304 1.1735
Severe: rms_fgdepar=11.1308, expected range: 0.0000 1.5135
Severe: avg_pge=0.8684, expected range: -0.1496 0.1850
HIGH RESO LAND TEMP Q (G/KG) 87623 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=5.1911, expected range: 0.0000 0.7733
HIGH RESO LAND TEMP Q (G/KG) 76595 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.8232, expected range: 0.5510 2.0715
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 01405 PRESSURE LAYER 600-900 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8459, expected range: -1.0491 0.7500
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 17952 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8332, expected range: -1.6316 0.7500
MANUAL LAND SYNOP RH2M (%) 42770 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9477, expected range: -0.1310 0.7500
MANUAL LAND SYNOP RH2M (%) 42915 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9864, expected range: -2.1436 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 63450 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8064, expected range: -1.4080 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 63533 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8252, expected range: -1.4165 0.7500
BUFR LAND SYNOP RH2M (%) 42459 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8640, expected range: -1.3357 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 81797 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=613.3044, expected range: 521.5050 677.5920
Severely_persistent: rms_fgdepar=613.3682, expected range: 521.5136 678.2008
BUFR LAND SYNOP SURFACE PRESSURE (PA) 84825 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-514.1088, expected range: -672.6812 -399.6680
Severely_persistent: rms_fgdepar=514.2075, expected range: 407.9659 667.2805
AUTOMATIC LAND SYNOP RH2M (%) 18156 : out of range
Severe: avg_pge=0.9196, expected range: -0.0590 0.0847
MANUAL LAND SYNOP RH2M (%) 38696 : out of range
Severe: rms_fgdepar=34.3906, expected range: 0.0000 18.6055
MANUAL LAND SYNOP RH2M (%) 42661 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=50.3196, expected range: 15.2460 67.1037
Severe: rms_fgdepar=50.3196, expected range: 15.2460 67.1037
Severe: avg_pge=0.9998, expected range: -0.2565 0.7500
MANUAL LAND SYNOP RH2M (%) 42855 : out of range
Severe: avg_pge=0.8048, expected range: -0.4743 0.6617
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40655 : out of range
Severe: avg_fgdepar=-585.9718, expected range: -485.1150 268.8574
Severe: rms_fgdepar=585.9718, expected range: 0.0000 465.6025
Severe: avg_pge=0.9005, expected range: -0.8073 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 41718 : out of range
Severe: rms_fgdepar=624.5100, expected range: 0.0000 194.9985
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 61627 : out of range
Severe: rms_fgdepar=311.3048, expected range: 0.0000 149.5373
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 62062 : out of range
Severe: rms_fgdepar=619.5529, expected range: 0.0000 332.3440
BUFR LAND SYNOP RH2M (%) 64040 : out of range
Severe: rms_fgdepar=46.6619, expected range: 14.7564 29.6809
BUFR LAND SYNOP RH2M (%) 68338 : out of range
Severe: rms_fgdepar=34.2831, expected range: 0.0000 18.3046
BUFR LAND SYNOP RH2M (%) 81847 : out of range
Severe: rms_fgdepar=32.0457, expected range: 0.0000 11.9785
BUFR LAND SYNOP RH2M (%) _1702766 : out of range
Severe: avg_fgdepar=-54.7481, expected range: -93.8724 3.9996
Severe: rms_fgdepar=55.4143, expected range: 0.0000 96.2985
Severe: avg_pge=0.9721, expected range: -0.8671 0.7500
BUFR LAND SYNOP RH2M (%) _17040E1 : out of range
Severe: avg_pge=0.9676, expected range: -0.2938 0.6186
BUFR LAND SYNOP SURFACE PRESSURE (PA) 13160 : out of range
Severe: rms_fgdepar=453.0570, expected range: 0.0000 84.2923
BUFR LAND SYNOP SURFACE PRESSURE (PA) 14536 : out of range
Severe: rms_fgdepar=467.8103, expected range: 0.0000 336.5230
Severe: avg_pge=0.8460, expected range: -0.7929 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24219 : out of range
Severe: rms_fgdepar=485.4254, expected range: 0.0000 210.2763
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24928 : out of range
Severe: rms_fgdepar=552.9247, expected range: 0.0000 261.2197
ship
AUTOMATIC SHIP WIND VECTOR DIFF (M/S) 62153 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8934, expected range: -0.5444 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) JPTX : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=20.2465, expected range: -18.6351 40.8916
Severely_persistent: rms_fgdepar=20.2465, expected range: 0.0000 41.7413
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 7JWH : out of range
29 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=538.7039, expected range: 346.6337 667.4141
Severely_persistent: rms_fgdepar=539.2688, expected range: 345.6845 669.3275
Severely_persistent: avg_pge=0.8099, expected range: 0.6940 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7QT7 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=598.4837, expected range: 0.0000 1668.7332
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WYQ4356 : out of range
35 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-858.3914, expected range: -1745.7723 2539.9532
Severely_persistent: rms_fgdepar=858.7771, expected range: 0.0000 2297.3594
Severely_persistent: avg_pge=0.8959, expected range: -1.1957 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) WSAF : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8850, expected range: 0.1805 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9VHE2 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=500.3754, expected range: 0.0000 605.0418
Severe: avg_pge=0.8201, expected range: -1.1232 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WDM2180 : out of range
Severe: rms_fgdepar=450.4253, expected range: 0.0000 157.6630
BUFR SHIP SYNOP SURFACE PRESSURE (PA) ZCEF6 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=529.7528, expected range: 0.0000 742.4249
buoy
MOORED BUOYS SURFACE PRESSURE (PA) 4400063 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=492.9346, expected range: 0.0000 333.8793
Severely_persistent: avg_pge=0.8955, expected range: -0.4352 0.7385
DRIFTING BUOYS SURFACE PRESSURE (PA) 1401832 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=445.0436, expected range: 0.0000 384.7425
Severely_persistent: avg_pge=0.8878, expected range: -0.8492 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101718 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=544.8099, expected range: -691.3925 832.4964
Severely_persistent: rms_fgdepar=552.1386, expected range: -789.4910 1138.6180
Severely_persistent: avg_pge=0.8823, expected range: -1.5964 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2101836 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=502.4763, expected range: 0.0000 820.0798
metar
METAR SURFACE PRESSURE (PA) LBPL : out of range
Severe: rms_fgdepar=397.7702, expected range: 0.0000 221.6465
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=-774.4608, expected range: -797.4160 -780.3862
Severely_persistent: rms_fgdepar=774.4612, expected range: 780.5311 797.3367
BUFR LAND SYNOP SNOW (CM) _MI17AC6 : out of range
36 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-71.3354, expected range: -86.4654 -36.4795
Severely_persistent: rms_fgdepar=71.3453, expected range: 36.5066 86.4744
AUTOMATIC LAND SYNOP SNOW (CM) : out of range
Considerable: rms_fgdepar=151.1274, expected range: 169.6913 200.4691
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02055 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.5605, expected range: -11.0824 7.6255
Severely_persistent: rms_fgdepar=14.5779, expected range: -5.5499 10.8671
METAR 2M TEMPERATURE (K) LTCB : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=13.8911, expected range: 0.7385 19.0442
Severely_persistent: rms_fgdepar=13.9690, expected range: 2.5815 18.2383
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.1683, expected range: -14.7547 -5.1311
Severely_persistent: rms_fgdepar=13.1683, expected range: 5.1167 14.8790
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI1D122 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=13.8025, expected range: 6.5336 16.4958
Severely_persistent: rms_fgdepar=13.9184, expected range: 7.0052 16.5963
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI1D581 : out of range
36 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-18.0464, expected range: -20.0197 -10.3216
Severely_persistent: rms_fgdepar=18.1172, expected range: 10.2938 20.1014
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02081 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-12.3944, expected range: -11.8703 4.8727
Severe: rms_fgdepar=12.5419, expected range: 0.0000 11.8012
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 29276 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.7375, expected range: 0.0000 5.5695
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71001 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-19.4827, expected range: -17.6084 12.9828
Severe: rms_fgdepar=19.4828, expected range: 0.0000 14.8924
Severe: avg_est_pge=0.8052, expected range: -0.3292 0.8570
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71195 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-19.6586, expected range: -17.8411 12.8612
Severe: rms_fgdepar=19.6599, expected range: 0.0000 15.1563
Severe: avg_est_pge=0.8069, expected range: -0.3373 0.8745
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71507 : out of range
Severe: rms_fgdepar=12.0522, expected range: 0.0000 10.2530
MANUAL LAND SYNOP 2M TEMPERATURE (K) 25248 : out of range
Severe: avg_fgdepar=-13.7550, expected range: -18.9704 9.7715
Severe: rms_fgdepar=13.7882, expected range: 0.0000 16.0503
MANUAL LAND SYNOP 2M TEMPERATURE (K) 25335 : out of range
Severe: avg_fgdepar=-12.8174, expected range: -18.1845 10.5570
Severe: rms_fgdepar=12.8620, expected range: 0.0000 16.2325
MANUAL LAND SYNOP 2M TEMPERATURE (K) 36022 : out of range
Severe: rms_fgdepar=11.0330, expected range: 0.0000 3.0680
METAR 2M TEMPERATURE (K) CYDB : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-16.5937, expected range: -15.1123 15.1512
Severe: rms_fgdepar=16.7802, expected range: 0.0000 13.6837
METAR 2M TEMPERATURE (K) SKCO : out of range
Severe: rms_fgdepar=12.2839, expected range: -1.7527 3.4623
BUFR LAND SYNOP 2M TEMPERATURE (K) 01042 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=11.4985, expected range: 0.0000 4.4017
BUFR LAND SYNOP 2M TEMPERATURE (K) 01047 : out of range
Severe: rms_fgdepar=12.2776, expected range: 0.0000 8.3548
BUFR LAND SYNOP 2M TEMPERATURE (K) 01057 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-15.0747, expected range: -7.8417 6.3882
Severe: rms_fgdepar=15.4405, expected range: 0.0000 6.8157
BUFR LAND SYNOP 2M TEMPERATURE (K) 01065 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=11.9485, expected range: 0.0000 5.2136
BUFR LAND SYNOP 2M TEMPERATURE (K) 02055 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-13.0211, expected range: -12.2024 7.8583
Severe: rms_fgdepar=13.8524, expected range: 0.0000 11.6904
BUFR LAND SYNOP 2M TEMPERATURE (K) 02081 : out of range
Severe: avg_fgdepar=-12.4233, expected range: -12.3275 5.0905
Severe: rms_fgdepar=12.5676, expected range: 0.0000 12.2801
BUFR LAND SYNOP 2M TEMPERATURE (K) 25248 : out of range
Severe: avg_fgdepar=-13.7844, expected range: -19.0220 9.7572
Severe: rms_fgdepar=13.8176, expected range: 0.0000 16.1250
BUFR LAND SYNOP 2M TEMPERATURE (K) 25335 : out of range
Severe: avg_fgdepar=-12.9553, expected range: -18.3122 10.5257
Severe: rms_fgdepar=13.0003, expected range: 0.0000 16.4052
BUFR LAND SYNOP 2M TEMPERATURE (K) 71001 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-18.6943, expected range: -17.0031 12.7852
Severe: rms_fgdepar=18.7949, expected range: 0.0000 14.5727
BUFR LAND SYNOP 2M TEMPERATURE (K) 71195 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-18.9941, expected range: -17.2365 12.7387
Severe: rms_fgdepar=19.0820, expected range: 0.0000 14.8973
BUFR LAND SYNOP 2M TEMPERATURE (K) 89734 : out of range
Severe: avg_fgdepar=12.9983, expected range: -6.9835 15.0386
Severe: rms_fgdepar=13.0383, expected range: 0.0000 16.9030
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 02221 : out of range
Severe: rms_fgdepar=31.5628, expected range: 0.0000 17.4153
MANUAL LAND SYNOP RH2M (%) 82336 : out of range
Severe: rms_fgdepar=39.9897, expected range: -7.2687 13.2997
METAR RH2M (%) ENEV : out of range
Severe: rms_fgdepar=36.6852, expected range: 0.0000 15.1787
METAR RH2M (%) UTAV : out of range
Severe: rms_fgdepar=33.9169, expected range: 3.4985 20.4119
BUFR LAND SYNOP RH2M (%) 01023 : out of range
Severe: rms_fgdepar=33.1229, expected range: 0.0000 18.6684
BUFR LAND SYNOP RH2M (%) _1706466 : out of range
Severe: rms_fgdepar=35.3754, expected range: 12.3077 25.0920