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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-09-30 00:00

atms
NPP ATMS RADIANCES CHANNEL 12 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2720, expected range: -0.2092 -0.1688
NOAA20 ATMS RADIANCES CHANNEL 12 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.3750, expected range: -0.3168 -0.2948
ssmis
DMSP-17 SSMIS RADIANCES CHANNEL 17 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-2.4287, expected range: -2.8403 -2.6872
gpsro
COSMIC2-E1 GPSRO SETTING HEIGHT 14-16 KM : out of range
Slight: stdev_norm_fgdepar=1.3006, expected range: 0.9968 1.2297
COSMIC2-E1 GPSRO SETTING HEIGHT 26-28 KM : out of range
Slight: stdev_norm_fgdepar=1.1835, expected range: 0.9290 1.1268
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1010-1011 (HPA) : out of range
13 times in the last 10 days for at least one item
Slight: avg_fgdepar=-4.0368, expected range: -3.3301 -3.3301
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1600-1601 (HPA) : out of range
7 times in the last 10 days for at least one item
Slight: stdev_fgdepar=3.3610, expected range: 2.8598 3.3217
Radiosondes
LAND TEMP TEMPERATURE (K) 40394 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.9056, expected range: -1.4341 0.7500
LAND TEMP Q (G/KG) 82332 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.5937, expected range: 0.6148 2.2396
LAND TEMP WIND VECTOR DIFF (M/S) 89512 PRESSURE LAYER 900-1200 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=19.7909, expected range: 0.0000 16.7320
Severe: avg_pge=0.8866, expected range: -0.6105 0.7500
HIGH RESO LAND TEMP TEMPERATURE (K) 60715 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=7.4259, expected range: 0.0000 2.2188
HIGH RESO LAND TEMP TEMPERATURE (K) (4 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=260.0000, expected range: 156.4763 173.2380
HIGH RESO LAND TEMP Q (G/KG) 72768 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.4974, expected range: 0.0000 1.2190
HIGH RESO LAND TEMP Q (G/KG) (2 pressure layers affected) : missing
Severe: obs_number=0.0000, expected range: 19.8590 221.4763
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA : out of range
Severe: obs_number=547.0000, expected range: 448.7137 461.7308
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HP : out of range
Severe: rms_fgdepar=9.0846, expected range: 1.1124 4.8289
HIGH RESO SEA TEMP TEMPERATURE (K) PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=3.3921, expected range: 0.0511 0.9219
Severe: rms_fgdepar=4.6573, expected range: 0.0511 0.9219
HIGH RESO SEA TEMP TEMPERATURE (K) ATGU3FT PRESSURE LAYER 300-600 (HPA : out of range
Severe: avg_fgdepar=12.8929, expected range: -1.2733 1.3590
Severe: rms_fgdepar=12.9336, expected range: 0.0000 1.9225
Severe: avg_pge=0.9295, expected range: -0.0288 0.0526
LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
Considerable: rms_fgdepar=2.1269, expected range: 1.3506 1.8438
amdar
TAMDAR WIND VECTOR DIFF (M/S) 00005154 PRESSURE LAYER 0-300 (HPA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=20.8761, expected range: 12.1131 25.4302
WIGOS AMDAR WIND VECTOR DIFF (M/S) DD5UILJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.4893, expected range: 0.0000 7.7414
WIGOS AMDAR WIND VECTOR DIFF (M/S) Y1LEIRBA PRESSURE LAYER 300-600 (HP : out of range
Severe: rms_fgdepar=15.1509, expected range: 0.0000 5.9934
Severe: avg_pge=0.8149, expected range: -0.0735 0.1029
WIGOS AMDAR WIND VECTOR DIFF (M/S) OV3IR4ZA PRESSURE LAYER 300-600 (HP : out of range
Severe: rms_fgdepar=15.8087, expected range: 0.0000 6.8975
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 06356 (2 pressure layers affe : out of range
Severe: avg_pge=0.8912, expected range: -0.8660 0.7500
JAPANESE WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : missing
3 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 0.0000 350.3864
Severe: obs_number=0.0000, expected range: 0.0000 350.3864
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 43333 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=21.7425, expected range: 0.0000 10.2312
synop
MANUAL LAND SYNOP RH2M (%) 64453 : out of range
Severe: rms_fgdepar=41.9886, expected range: 0.0000 9.6485
Severe: avg_pge=0.9976, expected range: 0.0011 0.0043
MANUAL LAND SYNOP RH2M (%) 62054 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8967, expected range: -0.4394 0.5423
MANUAL LAND SYNOP RH2M (%) 44284 : out of range
Severe: rms_fgdepar=31.8404, expected range: 0.0000 16.8751
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 62420 : out of range
Severe: rms_fgdepar=558.5217, expected range: 0.0000 126.1637
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40872 : out of range
Severe: rms_fgdepar=543.9667, expected range: 0.0000 78.9372
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 62414 : out of range
Severe: rms_fgdepar=330.6131, expected range: 0.0000 118.8920
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42634 : out of range
Severe: rms_fgdepar=516.1085, expected range: 0.0000 71.8641
BUFR LAND SYNOP RH2M (%) 71346 : out of range
Severe: rms_fgdepar=35.0933, expected range: 0.0000 16.9360
BUFR LAND SYNOP RH2M (%) 51156 : out of range
Severe: rms_fgdepar=43.4587, expected range: 0.0000 16.6349
BUFR LAND SYNOP RH2M (%) _170B147 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-58.7761, expected range: -123.4427 63.6961
BUFR LAND SYNOP RH2M (%) _170B147 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=58.7761, expected range: 0.0000 123.4427
BUFR LAND SYNOP RH2M (%) 36397 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=41.4221, expected range: 0.0000 16.3429
BUFR LAND SYNOP RH2M (%) 94498 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8234, expected range: -1.9422 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 60200 : out of range
Severe: rms_fgdepar=595.4135, expected range: 0.0000 232.0297
BUFR LAND SYNOP SURFACE PRESSURE (PA) 17510 : out of range
Severe: rms_fgdepar=343.9811, expected range: 0.0000 173.2788
BUFR LAND SYNOP SURFACE PRESSURE (PA) 33791 : out of range
Severe: rms_fgdepar=368.9791, expected range: 0.0000 62.7431
Severe: avg_pge=0.8027, expected range: -0.0972 0.1103
BUFR LAND SYNOP SURFACE PRESSURE (PA) 33135 : out of range
Severe: rms_fgdepar=354.9048, expected range: 0.0000 82.9709
Severe: avg_pge=0.8217, expected range: -0.0760 0.0863
BUFR LAND SYNOP SURFACE PRESSURE (PA) 22165 : out of range
Severe: rms_fgdepar=359.6594, expected range: 0.0000 91.2480
BUFR LAND SYNOP SURFACE PRESSURE (PA) 92076 : out of range
Severe: avg_fgdepar=-936.5932, expected range: -120.1000 116.5022
Severe: rms_fgdepar=936.5932, expected range: 0.0000 99.2546
Severe: avg_pge=0.9448, expected range: -0.3285 0.3996
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=201.0000, expected range: 379.6241 394.1537
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
Considerable: rms_fgdepar=162.0374, expected range: 40.2776 113.1314
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRSJ8 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-648.2148, expected range: -673.6713 -457.5211
Severely_persistent: rms_fgdepar=648.2208, expected range: 457.5916 675.3920
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VABC : out of range
23 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=670.8226, expected range: -2094.0598 2742.2460
Severely_persistent: rms_fgdepar=672.6254, expected range: 0.0000 1941.5106
Severely_persistent: avg_pge=0.8404, expected range: -0.7058 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) CQNL : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=520.4930, expected range: -1715.9704 1239.9871
Severely_persistent: rms_fgdepar=520.4930, expected range: 0.0000 1299.1960
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VRDW2 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8620, expected range: -0.7776 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) 63059 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=410.5871, expected range: 0.0000 176.7100
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WDF4831 : out of range
Severe: rms_fgdepar=551.0681, expected range: 0.0000 91.8278
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 2ICI4 : out of range
Severe: rms_fgdepar=426.3048, expected range: 0.0000 223.1767
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HA4455 : out of range
Severe: avg_fgdepar=605.9572, expected range: -472.1546 1009.2625
Severe: rms_fgdepar=755.0901, expected range: 0.0000 837.2014
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRGO8 : out of range
Severe: avg_fgdepar=592.2203, expected range: 182.7740 533.1437
Severe: rms_fgdepar=592.2203, expected range: 161.2769 559.2641
Severe: avg_pge=0.8002, expected range: 0.4431 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WMPP : out of range
Severe: rms_fgdepar=319.0975, expected range: 0.0000 75.8412
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 7KKU : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=506.2687, expected range: -546.1133 1170.9735
Severe: rms_fgdepar=506.2687, expected range: 0.0000 807.3297
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 7JJV : out of range
Severe: avg_fgdepar=-509.3642, expected range: -187.7326 202.0882
Severe: rms_fgdepar=510.1770, expected range: 0.0000 184.8593
Severe: avg_pge=0.8222, expected range: -0.1499 0.1656
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) WDM2180 : out of range
Severe: avg_fgdepar=23.9798, expected range: -3.2124 9.7906
Severe: rms_fgdepar=30.9143, expected range: 0.0000 10.0216
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 6100198 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9121, expected range: -1.1261 0.7500
All MOORED BUOYS WMO BLOCK 22 : all data missing
Severe: obs_number=0, expected range: 116.73 162.82
DRIFTING BUOYS SURFACE PRESSURE (PA) 6203843 : out of range
Severe: rms_fgdepar=473.7940, expected range: 0.0000 354.6122
Severe: avg_pge=0.8823, expected range: -1.0191 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4201704 : out of range
Severe: rms_fgdepar=302.5030, expected range: 0.0000 77.1132
metar
METAR SURFACE PRESSURE (PA) GMFB : out of range
Severe: avg_fgdepar=529.5435, expected range: -124.5041 181.2595
Severe: rms_fgdepar=711.7552, expected range: 0.0000 140.7814
METAR SURFACE PRESSURE (PA) MDPC : out of range
Severe: rms_fgdepar=366.3119, expected range: 0.0000 126.4145
METAR SURFACE PRESSURE (PA) KSSC : out of range
Severe: avg_fgdepar=-588.2412, expected range: -118.7178 79.2783
Severe: rms_fgdepar=595.0997, expected range: 0.0000 110.4794
Severe: avg_pge=0.8630, expected range: -0.0369 0.0449
METAR SURFACE PRESSURE (PA) EIME : out of range
Severe: rms_fgdepar=410.0947, expected range: 3.1713 66.2963
METAR SURFACE PRESSURE (PA) SKBQ : out of range
Severe: rms_fgdepar=328.0249, expected range: 0.0000 158.0621
METAR SURFACE PRESSURE (PA) KTIX : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=336.6825, expected range: 0.0000 117.5791
AUTOMATIC METAR SURFACE PRESSURE (PA) KHXD : out of range
Severe: rms_fgdepar=308.5291, expected range: 0.0000 120.8498
AUTOMATIC METAR SURFACE PRESSURE (PA) K11R : out of range
Severe: rms_fgdepar=322.7871, expected range: 0.0000 122.4340
gbrad
All GROUND-BASED RADAR Global : all data missing
Severe: obs_number=0, expected range: 76.73 2834.19
snow
BUFR LAND SYNOP SNOW (CM) _MI1F9AC : out of range
28 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=53.7391, expected range: 41.4889 62.0236
BUFR LAND SYNOP SNOW (CM) _MI1F9AC : out of range
28 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=54.2402, expected range: 43.4717 62.3975
BUFR LAND SYNOP SNOW (CM) : out of range
6 times in the last 10 days for at least one item
Slight: avg_fgdepar=-35.4871, expected range: -48.7819 -38.6408
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71052 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-12.9212, expected range: -18.2815 -3.1435
Severely_persistent: rms_fgdepar=12.9934, expected range: 2.9087 18.7572
BUFR LAND SYNOP 2M TEMPERATURE (K) 71052 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-12.7724, expected range: -18.5510 -2.9449
Severely_persistent: rms_fgdepar=12.8787, expected range: 2.7722 18.9166
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89262 : out of range
Severe: avg_fgdepar=-13.4615, expected range: -5.5172 4.3378
Severe: rms_fgdepar=13.7081, expected range: 0.0000 7.1688
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 52495 : out of range
Severe: avg_fgdepar=12.3656, expected range: -16.8222 20.6068
Severe: rms_fgdepar=12.3656, expected range: 0.0000 13.6233
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=5.7111, expected range: 3.4507 4.3355
MANUAL LAND SYNOP 2M TEMPERATURE (K) 64453 : out of range
Severe: rms_fgdepar=10.2491, expected range: 0.0000 3.4560
MANUAL LAND SYNOP 2M TEMPERATURE (K) 71965 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=12.1225, expected range: -4.4161 14.4270
Severe: rms_fgdepar=12.1748, expected range: 0.0000 12.4080
MANUAL LAND SYNOP 2M TEMPERATURE (K) 42177 : out of range
Severe: rms_fgdepar=10.9259, expected range: 0.0000 4.3225
BUFR LAND SYNOP 2M TEMPERATURE (K) 89262 : out of range
Severe: avg_fgdepar=-13.1184, expected range: -5.9050 4.4092
Severe: rms_fgdepar=13.3449, expected range: 0.0000 6.8109
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13804 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-18.8288, expected range: -47.2095 37.2367
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13804 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=18.8288, expected range: 7.2581 23.7263
BUFR LAND SYNOP 2M TEMPERATURE (K) 71965 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=12.2805, expected range: -4.0337 14.2329
Severe: rms_fgdepar=12.3368, expected range: 0.0000 12.2435
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=223.0000, expected range: 390.5588 425.1912
rh2m
MANUAL LAND SYNOP RH2M (%) 94360 : out of range
Severe: rms_fgdepar=33.5380, expected range: 0.0000 18.7174
BUFR LAND SYNOP RH2M (%) 76750 : out of range
Severe: rms_fgdepar=35.7409, expected range: 0.0000 15.7669