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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2020-05-31 00:00

amsua
AQUA AMSUA RADIANCES (7 channels affected) : out of range
Considerable: obs_number=14918.0000, expected range: 16252.2023 20579.5477
iasi
METOP-B IASI RADIANCES (146 channels affected) : out of range
Severe: obs_number=15039.0000, expected range: 21614.9014 22221.8486
airs
AQUA AIRS RADIANCES (46 channels affected) : out of range
Considerable: obs_number=15813.0000, expected range: 18093.0098 19415.8652
mwhs
FY-3B MWHS RADIANCES CHANNEL 3 : out of range
Severe: obs_number=6245.0000, expected range: 16121.2011 19089.7989
FY-3B MWHS RADIANCES CHANNEL 4 : out of range
Severe: obs_number=6244.0000, expected range: 16129.7648 19119.2352
FY-3B MWHS RADIANCES CHANNEL 5 : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=4006.0000, expected range: 10298.6892 12519.3108
atms
NOAA20 ATMS RADIANCES CHANNEL 6 : out of range
1 times in the last 10 days for at least one item
Severe: avg_biascorr=0.2061, expected range: 0.2238 0.2438
NPP ATMS RADIANCES (11 channels affected) : out of range
Considerable: obs_number=13942.0000, expected range: 20309.2379 24521.7621
NOAA20 ATMS RADIANCES (11 channels affected) : out of range
Considerable: obs_number=15038.0000, expected range: 20246.6253 25202.2497
gpsro
All FY-3C GNOS RISING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 467.59 2312.99
All COSMIC2-E3 GPSRO RISING ALL HEIGHTS Global : all data missing
Severe: obs_number=0, expected range: 892.68 2197.79
All COSMIC2-E5 GPSRO RISING ALL HEIGHTS Global : all data missing
Severe: obs_number=0, expected range: 648.69 2312.93
All COSMIC2-E6 GPSRO RISING ALL HEIGHTS Global : all data missing
Severe: obs_number=0, expected range: 712.14 3225.89
TERRASAR-X GPSRO SETTING (9 impact heights affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=274.0000, expected range: 462.7367 1118.5750
METOP-C GRAS SETTING HEIGHT 14 : out of range
Slight: stdev_norm_fgdepar=1.3012, expected range: 0.9999 1.2318
Atmospheric Motion Vector
NOAA20 VIIRS-AMV IR WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
4 times in the last 10 days for at least one item
Considerable: obs_number=827.0000, expected range: 0.0000 475.1834
Radiosondes
LAND TEMP Q (G/KG) 98433 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.3908, expected range: 0.5031 1.3567
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 52267 (2 pressure layers af : out of range
Severe: rms_fgdepar=19.1856, expected range: 0.0000 6.8470
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 52267 PRESSURE LAYER 300-60 : out of range
Severe: avg_pge=0.8050, expected range: -0.5586 0.6728
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 51777 PRESSURE LAYER 300-60 : out of range
Severe: rms_fgdepar=20.4347, expected range: 0.0000 8.1588
HIGH RESO LAND TEMP TEMPERATURE (K) 51777 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=8.3684, expected range: 0.4763 2.3031
HIGH RESO LAND TEMP TEMPERATURE (K) 72597 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=8.8174, expected range: 0.1063 1.9272
Severe: avg_pge=0.8168, expected range: -0.0848 0.1283
HIGH RESO LAND TEMP TEMPERATURE (K) 52203 PRESSURE LAYER 900-1200 (HPA : out of range
Severe: rms_fgdepar=6.3275, expected range: 0.0000 3.1546
HIGH RESO LAND TEMP Q (G/KG) 91212 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=2.4919, expected range: 0.0000 0.9065
HIGH RESO LAND TEMP Q (G/KG) 72786 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.4700, expected range: 0.0000 1.3577
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
Severe: obs_number=332.0000, expected range: 460.9049 468.3451
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (2 pressure layers affected : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=89.0000, expected range: 162.5371 186.5741
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 900-1200 (HPA) : out of range
Considerable: obs_number=195.0000, expected range: 239.4306 290.0694
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) VJ3H1DBA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=29.2435, expected range: -0.3930 5.5300
Severe: rms_fgdepar=30.5337, expected range: 0.0000 6.2232
Severe: avg_pge=0.8837, expected range: -0.1300 0.1788
WIGOS AMDAR TEMPERATURE (K) PRESSURE LAYER 600-900 (HPA) : missing
Severe: obs_number=0.0000, expected range: 0.0000 326.9780
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 42348 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=15.8137, expected range: 0.0000 8.2063
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 60602 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8245, expected range: 0.6011 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 81982 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-522.8007, expected range: -872.3815 551.9019
Severely_persistent: rms_fgdepar=694.3290, expected range: -848.2212 1222.9771
AUTOMATIC LAND SYNOP RH2M (%) 68821 : out of range
Severe: avg_fgdepar=61.2162, expected range: -54.0580 73.6546
Severe: rms_fgdepar=61.2162, expected range: 0.0000 65.6115
Severe: avg_pge=0.9982, expected range: -0.0791 0.1034
AUTOMATIC LAND SYNOP RH2M (%) 68839 : out of range
Severe: avg_fgdepar=57.9097, expected range: -33.2110 48.1288
Severe: rms_fgdepar=57.9097, expected range: 0.0000 39.5861
Severe: avg_pge=0.9763, expected range: -0.5953 0.6936
MANUAL LAND SYNOP RH2M (%) 60580 : out of range
Severe: rms_fgdepar=38.6041, expected range: 0.0000 9.1547
MANUAL LAND SYNOP RH2M (%) 38911 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8538, expected range: -0.8239 0.7500
MANUAL LAND SYNOP RH2M (%) 40265 : out of range
Severe: rms_fgdepar=31.2202, expected range: 0.0000 12.3803
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40930 : out of range
Severe: avg_fgdepar=-744.7666, expected range: -590.5297 188.3445
Severe: rms_fgdepar=744.7666, expected range: 0.0000 389.6717
Severe: avg_pge=0.8810, expected range: -0.1852 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42441 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8460, expected range: -1.4155 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42803 : out of range
Severe: rms_fgdepar=332.2530, expected range: 0.0000 153.4240
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 67283 : out of range
Severe: rms_fgdepar=364.8333, expected range: 0.0000 203.3308
Severe: avg_pge=0.8001, expected range: -0.7350 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42174 : out of range
Severe: avg_fgdepar=-659.9142, expected range: -229.2170 92.8858
Severe: rms_fgdepar=659.9142, expected range: 0.0000 229.2170
Severe: avg_pge=0.9157, expected range: -0.7887 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 86255 : out of range
Severe: rms_fgdepar=337.4011, expected range: 0.0000 243.3843
Severe: avg_pge=0.8364, expected range: -0.7566 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42367 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=306.0761, expected range: 0.0000 123.8860
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43359 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8553, expected range: -0.7575 0.7500
BUFR LAND SYNOP RH2M (%) 72371 : out of range
Severe: rms_fgdepar=39.5117, expected range: 0.0000 5.1539
Severe: avg_pge=0.9535, expected range: 0.0022 0.0030
BUFR LAND SYNOP RH2M (%) 72672 : out of range
Severe: rms_fgdepar=38.4434, expected range: 0.0000 12.2467
BUFR LAND SYNOP RH2M (%) 72464 : out of range
Severe: avg_fgdepar=53.5402, expected range: -12.1253 12.6348
Severe: rms_fgdepar=53.5402, expected range: -12.1779 18.1977
BUFR LAND SYNOP RH2M (%) 08397 : out of range
Severe: avg_pge=0.8536, expected range: -0.5570 0.6714
BUFR LAND SYNOP SURFACE PRESSURE (PA) 23975 : out of range
Severe: rms_fgdepar=546.0271, expected range: 0.0000 222.1503
BUFR LAND SYNOP SURFACE PRESSURE (PA) 30028 : out of range
Severe: avg_fgdepar=-556.2885, expected range: -98.4086 94.6083
Severe: rms_fgdepar=730.8782, expected range: 0.0000 131.6676
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9V2734 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=20.3567, expected range: -12.6260 37.3873
Severely_persistent: rms_fgdepar=20.3567, expected range: 0.0000 37.6721
Severely_persistent: avg_pge=0.9112, expected range: 0.1363 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) TBWUK48 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8144, expected range: -0.4356 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) PCHF : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=31.7806, expected range: -4.4256 23.4721
Severely_persistent: rms_fgdepar=31.7806, expected range: 0.0000 23.9483
Severely_persistent: avg_pge=0.9479, expected range: 0.3257 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OYIK2 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=571.3420, expected range: 424.6927 797.6112
Severely_persistent: rms_fgdepar=572.7234, expected range: 424.5862 798.2104
Severely_persistent: avg_pge=0.8153, expected range: -0.1196 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRQK3 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-563.0931, expected range: -757.6436 -420.0241
Severely_persistent: rms_fgdepar=635.6737, expected range: 403.3452 786.1224
Severely_persistent: avg_pge=0.8522, expected range: 0.7753 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) S6DU6 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=694.3455, expected range: 384.3298 788.9331
Severely_persistent: rms_fgdepar=694.3455, expected range: 384.3298 788.9331
Severely_persistent: avg_pge=0.8496, expected range: 0.6579 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) UCQX : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=1011.6310, expected range: -212.9236 1929.9600
Severely_persistent: rms_fgdepar=1011.8277, expected range: 0.0000 1927.1063
SHIP SURFACE PRESSURE (PA) V7DR9 : out of range
Severe: rms_fgdepar=588.1050, expected range: 0.0000 299.9925
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) MAOR4 : out of range
Severe: avg_pge=0.8777, expected range: -0.2396 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VRJH5 : out of range
Severe: avg_fgdepar=36.6830, expected range: -3.0297 6.5133
Severe: rms_fgdepar=36.6830, expected range: 0.0000 6.5133
Severe: avg_pge=0.9543, expected range: -0.8428 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OWSE2 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=684.0100, expected range: -126.4849 360.8760
Severe: rms_fgdepar=684.0100, expected range: 0.0000 320.1657
Severe: avg_pge=0.8490, expected range: -0.9236 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRLR2 : out of range
Severe: avg_fgdepar=-713.4266, expected range: -691.7774 526.6167
Severe: rms_fgdepar=718.8680, expected range: 79.4345 269.8778
Severe: avg_pge=0.8825, expected range: -0.3167 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) TCTX2 : out of range
Severe: avg_fgdepar=645.5926, expected range: 178.5985 621.3083
Severe: rms_fgdepar=645.5926, expected range: 183.4235 617.7636
Severe: avg_pge=0.8359, expected range: 0.5313 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRMO4 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-584.4327, expected range: -773.9789 -333.9377
Severe: rms_fgdepar=584.4327, expected range: 329.3750 723.1225
BUFR SHIP SYNOP SURFACE PRESSURE (PA) A8SZ4 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=302.2282, expected range: 0.0000 160.4915
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HA4999 : out of range
Severe: rms_fgdepar=499.9278, expected range: 0.0000 241.0243
BUFR SHIP SYNOP SURFACE PRESSURE (PA) CPR : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=580.6536, expected range: -370.2055 604.2122
Severe: rms_fgdepar=688.1866, expected range: 0.0000 514.7075
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 6100198 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8867, expected range: -0.3436 0.7500
MOORED BUOYS SURFACE PRESSURE (PA) 2200186 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8361, expected range: -0.8049 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1601700 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-696.3214, expected range: -859.6591 981.8828
Severely_persistent: rms_fgdepar=696.8327, expected range: 0.0000 1094.3130
Severely_persistent: avg_pge=0.9193, expected range: -1.2071 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6301676 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-626.1754, expected range: -311.9231 334.8361
Severely_persistent: rms_fgdepar=627.3698, expected range: 0.0000 325.8985
Severely_persistent: avg_pge=0.9146, expected range: -0.6926 0.7500
metar
METAR SURFACE PRESSURE (PA) SBUL : out of range
Severe: rms_fgdepar=382.6737, expected range: 0.0000 121.2098
snow
AUTOMATIC LAND SYNOP SNOW (CM) 01132 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=60.7232, expected range: 66.3759 77.8488
Severely_persistent: rms_fgdepar=60.7232, expected range: 66.3759 77.8488
MANUAL LAND SYNOP SNOW (CM) 11138 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=74.5612, expected range: 60.3940 96.6280
Severely_persistent: rms_fgdepar=74.5612, expected range: 60.3940 96.6280
BUFR LAND SYNOP SNOW (CM) 01361 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=106.4840, expected range: 96.7870 113.4126
Severely_persistent: rms_fgdepar=106.4840, expected range: 96.7893 113.4144
BUFR LAND SYNOP SNOW (CM) 01132 : out of range
36 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=62.3589, expected range: 69.0876 76.4215
Severely_persistent: rms_fgdepar=62.3805, expected range: 69.0994 76.4147
BUFR LAND SYNOP SNOW (CM) 01435 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=104.3764, expected range: 98.6153 116.3270
Severely_persistent: rms_fgdepar=104.3771, expected range: 98.6226 116.3258
BUFR LAND SYNOP SNOW (CM) 11138 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=75.3260, expected range: 61.6940 98.5039
Severely_persistent: rms_fgdepar=75.3260, expected range: 61.6940 98.5039
ROCOB TEMP SNOW (CM) 64301321 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=53.7378, expected range: 19.1414 60.3556
Severe: rms_fgdepar=53.7378, expected range: 19.1414 60.3556
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89625 : out of range
Severe: avg_est_pge=0.8224, expected range: 0.2375 1.0709
MANUAL LAND SYNOP 2M TEMPERATURE (K) 72464 : out of range
Severe: avg_fgdepar=-12.2489, expected range: -3.1558 3.2708
Severe: rms_fgdepar=12.2489, expected range: 0.0000 3.0304
Severe: avg_est_pge=0.8212, expected range: -0.2035 0.2843
METAR 2M TEMPERATURE (K) KIDA : out of range
Severe: rms_fgdepar=11.5144, expected range: 0.0000 6.0274
LAND TEMP 2M TEMPERATURE (K) 48565 : out of range
Severe: avg_fgdepar=-12.4307, expected range: -1.5936 4.3855
Severe: rms_fgdepar=12.4307, expected range: 0.0000 4.2300
rh2m
MANUAL LAND SYNOP RH2M (%) 42174 : out of range
Severe: rms_fgdepar=38.2526, expected range: 0.0000 21.0466