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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2020-06-03 00:00

cris
NOAA20 CRIS RADIANCES CHANNEL 88 : out of range
Considerable: obs_number=1644.0000, expected range: 806.5905 1435.4095
saphir
All MEGHA-TROPIQUES SAPHIR ALLSKY ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 25101.65
mwhs
All FY-3B MWHS ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 3711.08 30092.68
gpsro
All FY-3C GNOS RISING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 467.59 2312.99
SPIRE LEMUR 3U GPSRO RISING HEIGHT 3 : out of range
Considerable: stdev_norm_fgdepar=0.3585, expected range: 0.0860 0.2528
Atmospheric Motion Vector
METEOSAT-8 AMV VIS2 WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HP : out of range
Considerable: stdev_fgdepar=1.1217, expected range: 0.8887 1.0366
Radiosondes
LAND TEMP TEMPERATURE (K) 23933 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_fgdepar=-9.4141, expected range: -0.6542 1.3412
Severe: rms_fgdepar=9.5671, expected range: 0.0000 2.2620
Severe: avg_pge=0.9021, expected range: -0.1315 0.1882
LAND TEMP Q (G/KG) 41316 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=6.1057, expected range: -6.0694 6.1985
Severe: rms_fgdepar=6.1114, expected range: 0.0000 2.6534
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=264.0000, expected range: 191.4535 204.5465
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 61 : all data missing
Severe: obs_number=0, expected range: 49.78 724.56
HIGH RESO SEA TEMP Q (G/KG) (4 pressure layers affected) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=204.0000, expected range: 129.7978 136.8689
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=58.0000, expected range: 162.5999 253.9001
LAND TEMP WIND VECTOR DIFF (M/S) (3 pressure layers affected) : out of range
Considerable: obs_number=180.0000, expected range: 406.6329 795.3671
LAND TEMP Q (G/KG) (2 pressure layers affected) : out of range
Considerable: obs_number=83.0000, expected range: 169.9762 308.0238
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (4 pressure layers affected : out of range
3 times in the last 10 days for at least one item
Considerable: obs_number=149.0000, expected range: 229.4863 294.5137
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=56.0000, expected range: 63.1667 68.1667
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) NXOGUUBA PRESSURE LAYER 900-1200 (H : out of range
Severe: rms_fgdepar=16.0383, expected range: 0.0000 8.4718
WIGOS AMDAR WIND VECTOR DIFF (M/S) DJMWUWRA PRESSURE LAYER 900-1200 (H : out of range
Severe: avg_fgdepar=22.4384, expected range: -0.5959 4.8323
Severe: rms_fgdepar=22.5851, expected range: 0.0000 5.1600
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 600-900 (HPA) : out of range
Considerable: obs_number=3877.0000, expected range: 1055.1048 2424.6452
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 97260 (2 pressure layers affected) : out of range
Severe: avg_pge=0.8619, expected range: -0.7557 0.7500
LAND PILOT WIND VECTOR DIFF (M/S) (3 pressure layers affected) : out of range
Considerable: obs_number=89.0000, expected range: 219.3462 349.1538
LAND PILOT WIND VECTOR DIFF (M/S) (4 pressure layers affected) : out of range
Considerable: obs_number=93.0000, expected range: 212.5397 392.4603
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 60602 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8188, expected range: 0.5652 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 23471 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=556.0806, expected range: -587.1631 841.7393
Severely_persistent: avg_pge=0.8631, expected range: -0.9821 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 35182 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9443, expected range: -0.9350 0.7500
MANUAL LAND SYNOP RH2M (%) 41700 : out of range
Severe: avg_pge=0.9554, expected range: -0.4088 0.5313
MANUAL LAND SYNOP RH2M (%) 95362 : out of range
Severe: rms_fgdepar=42.7312, expected range: 0.0000 19.2462
Severe: avg_pge=0.9325, expected range: 0.0004 0.0057
MANUAL LAND SYNOP RH2M (%) 42855 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9877, expected range: -0.3198 0.3967
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 38750 : out of range
Severe: avg_fgdepar=522.2254, expected range: -238.4713 210.3134
Severe: rms_fgdepar=522.6826, expected range: 0.0000 200.8120
Severe: avg_pge=0.8871, expected range: -0.4858 0.6901
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 60531 : out of range
Severe: rms_fgdepar=385.7428, expected range: 0.0000 89.9358
Severe: avg_pge=0.8540, expected range: 0.0000 0.0000
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 37871 : out of range
Severe: rms_fgdepar=393.3154, expected range: 0.0000 178.6568
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43012 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=531.6738, expected range: -778.5639 704.2565
Severe: rms_fgdepar=531.6738, expected range: 0.0000 627.6468
Severe: avg_pge=0.8590, expected range: -0.9979 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 36535 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=414.6261, expected range: 0.0000 203.8208
Severe: avg_pge=0.8559, expected range: -0.2633 0.3832
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40646 : out of range
Severe: rms_fgdepar=366.3607, expected range: 0.0000 188.8416
Severe: avg_pge=0.8254, expected range: -1.0678 0.7500
BUFR LAND SYNOP RH2M (%) 72644 : out of range
Severe: rms_fgdepar=48.4432, expected range: 0.0000 31.8163
Severe: avg_pge=0.9878, expected range: -0.0411 0.0533
BUFR LAND SYNOP RH2M (%) 34186 : out of range
Severe: rms_fgdepar=32.2899, expected range: 0.0000 13.2930
BUFR LAND SYNOP SURFACE PRESSURE (PA) 72640 : out of range
Severe: rms_fgdepar=322.4676, expected range: 0.0000 136.9765
BUFR LAND SYNOP SURFACE PRESSURE (PA) 95881 : out of range
Severe: rms_fgdepar=474.9254, expected range: 0.0000 114.7686
Severe: avg_pge=0.8765, expected range: -0.4820 0.6153
BUFR LAND SYNOP SURFACE PRESSURE (PA) 72502 : out of range
Severe: rms_fgdepar=529.9587, expected range: 0.0000 76.3540
BUFR LAND SYNOP SURFACE PRESSURE (PA) 72543 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=362.4838, expected range: 0.0000 173.3771
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94654 : out of range
Severe: rms_fgdepar=350.5124, expected range: 0.0000 75.3570
Severe: avg_pge=0.8692, expected range: -0.8420 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 30028 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=686.8080, expected range: 0.0000 156.7038
BUFR LAND SYNOP Z (M) : out of range
Considerable: obs_number=204.0000, expected range: 152.5095 182.2405
Considerable: obs_number=104.0000, expected range: 69.4315 86.3463
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) TBWUK48 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8237, expected range: 0.0718 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) PCHF : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8959, expected range: 0.5048 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OYIK2 : out of range
26 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=703.0359, expected range: 388.7715 799.1123
Severely_persistent: rms_fgdepar=703.0359, expected range: 389.3263 799.3228
Severely_persistent: avg_pge=0.8308, expected range: 0.0636 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRDJ3 : out of range
25 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-521.5893, expected range: -680.5435 -314.2643
Severely_persistent: rms_fgdepar=523.4857, expected range: 313.3290 682.4043
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRQK3 : out of range
33 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-611.9326, expected range: -788.1610 -403.6910
Severely_persistent: rms_fgdepar=614.5237, expected range: 407.9448 800.1300
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRMO4 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-583.4928, expected range: -637.3059 -425.7524
Severely_persistent: rms_fgdepar=583.4928, expected range: 425.7524 637.3059
BUFR SHIP SYNOP SURFACE PRESSURE (PA) S6DU6 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=645.5381, expected range: 346.5033 869.0539
Severely_persistent: rms_fgdepar=645.5381, expected range: 346.6013 869.6100
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7CS8 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=601.8900, expected range: 47.7748 836.7401
Severely_persistent: rms_fgdepar=601.8900, expected range: 47.7748 836.7401
Severely_persistent: avg_pge=0.8199, expected range: 0.2793 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) UCQX : out of range
26 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=1300.4214, expected range: -0.0349 1840.2826
Severely_persistent: rms_fgdepar=1300.5089, expected range: 6.4035 1836.4033
Severely_persistent: avg_pge=0.9203, expected range: 0.6362 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V9373 : out of range
Severe: avg_fgdepar=551.6835, expected range: 169.3990 662.8147
Severe: rms_fgdepar=551.6835, expected range: 174.9898 663.1215
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3EKU3 : out of range
Severe: rms_fgdepar=449.7090, expected range: 0.0000 190.0534
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7EQ4 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=662.1365, expected range: -164.4954 497.2239
Severe: rms_fgdepar=662.1365, expected range: 0.0000 497.2239
Severe: avg_pge=0.8359, expected range: -0.8386 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRPT5 : out of range
Severe: avg_fgdepar=543.6664, expected range: -477.5681 279.6528
Severe: rms_fgdepar=627.3865, expected range: 0.0000 336.8111
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7JD6 : out of range
Severe: avg_fgdepar=577.6705, expected range: -1117.2766 1440.5315
Severe: rms_fgdepar=577.6705, expected range: 0.0000 985.2140
Severe: avg_pge=0.8195, expected range: -0.7857 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) CFN6287 : out of range
Severe: rms_fgdepar=639.5207, expected range: 0.0000 400.5186
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WGEB : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=803.1536, expected range: -117.0452 360.9969
Severe: rms_fgdepar=803.1536, expected range: 0.0000 353.6430
Severe: avg_pge=0.8709, expected range: -1.2690 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WLMQ : out of range
Severe: avg_fgdepar=623.0045, expected range: -272.1776 551.4852
Severe: rms_fgdepar=623.0045, expected range: 0.0000 552.4296
Severe: avg_pge=0.8348, expected range: -0.9881 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) KGTX : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8026, expected range: 0.6196 0.7500
buoy
MOORED BUOYS SURFACE PRESSURE (PA) 2200186 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8367, expected range: -1.1383 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1601700 : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-555.6855, expected range: -1947.2161 1810.3948
Severely_persistent: rms_fgdepar=563.5006, expected range: 0.0000 1135.3654
DRIBU SURFACE PRESSURE (PA) 23491 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8220, expected range: -1.1280 0.7500
MOORED BUOYS SURFACE PRESSURE (PA) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=69.0000, expected range: 31.1535 52.8465
metar
METAR SURFACE PRESSURE (PA) OPPI : out of range
Severe: avg_fgdepar=527.1832, expected range: -243.9076 176.4791
Severe: rms_fgdepar=742.5891, expected range: 0.0000 154.7472
METAR SURFACE PRESSURE (PA) VAJJ : out of range
Severe: rms_fgdepar=346.3180, expected range: 0.0000 135.4028
METAR SURFACE PRESSURE (PA) CWWU : out of range
Severe: rms_fgdepar=393.2996, expected range: 0.0000 114.5936
snow
MANUAL LAND SYNOP SNOW (CM) 11138 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=82.2159, expected range: 64.5148 86.5409
Severely_persistent: rms_fgdepar=82.2159, expected range: 64.5148 86.5409
BUFR LAND SYNOP SNOW (CM) 01361 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=95.5000, expected range: 96.6780 113.8729
Severely_persistent: rms_fgdepar=95.5013, expected range: 96.6799 113.8740
BUFR LAND SYNOP SNOW (CM) 01435 : out of range
28 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=92.0997, expected range: 94.7938 117.5244
Severely_persistent: rms_fgdepar=92.1042, expected range: 94.7966 117.5269
BUFR LAND SYNOP SNOW (CM) 01346 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=84.9752, expected range: 85.9532 93.1743
Severely_persistent: rms_fgdepar=84.9805, expected range: 85.9524 93.1768
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=83.4338, expected range: 65.9497 87.3327
Severely_persistent: rms_fgdepar=83.4338, expected range: 65.9497 87.3327
AUTOMATIC LAND SYNOP SNOW (CM) 01361 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=95.0000, expected range: 94.1102 115.5101
Severe: rms_fgdepar=95.0000, expected range: 94.1102 115.5101
t2m
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89606 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8226, expected range: 0.3585 0.9743
LAND TEMP 2M TEMPERATURE (K) 83937 : out of range
Severe: avg_fgdepar=-15.9126, expected range: -5.1407 5.2160
Severe: rms_fgdepar=15.9126, expected range: 0.0000 4.6819
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=1696.0000, expected range: 1970.3910 2045.3590
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 37437 : out of range
Severe: rms_fgdepar=30.8989, expected range: 0.0000 10.0485
METAR RH2M (%) MMBT : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=38.2643, expected range: 0.0000 20.3594
AUTOMATIC LAND SYNOP RH2M (%) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=1604.0000, expected range: 1822.6391 1951.1109