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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-08-12 00:00

amsua
NOAA-19 AMSUA ALL SKY RADIANCES CHANNEL 8 : out of range
Severe: avg_biascorr=0.0160, expected range: -0.5660 -0.2586
cris
All NPP CRIS ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 14984.67 15837.75
atms
All NPP ATMS ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 11483.33 13968.73
gpsro
SPIRE LEMUR 3U GPSRO SETTING (24 impact heights affected) : out of range
Slight: obs_number=4840.0000, expected range: 2944.3058 4199.6942
Atmospheric Motion Vector
All AQUA MODIS CLEAR WV ALL LAYERS Global : all data missing
Severely_persistent: obs_number=0, expected range: 90.93 1081.28
All NPP VIIRS AMV IR ALL LAYERS Global : all data missing
Severely_persistent: obs_number=0, expected range: 203.07 1462.57
GOES-16 AMV CLOUDY WV3 WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HP : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=2297.0000, expected range: 1193.6222 1643.1278
Radiosondes
LAND TEMP Q (G/KG) 35700 PRESSURE LAYER 900-1200 (HPA) : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=6.0278, expected range: -2.1290 11.4015
Severely_persistent: rms_fgdepar=6.5589, expected range: 0.0000 11.8842
LAND TEMP WIND VECTOR DIFF (M/S) 42701 PRESSURE LAYER 0-300 (HPA) : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8147, expected range: 0.2643 0.7500
LAND TEMP Q (G/KG) 41024 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=8.7079, expected range: -5.1510 6.9763
Severe: rms_fgdepar=9.6135, expected range: 0.0000 7.0871
LAND TEMP TEMPERATURE (K) 22271 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=8.3681, expected range: 0.0000 3.2933
LAND TEMP TEMPERATURE (K) 29839 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=8.1555, expected range: 0.0000 5.9576
Severe: avg_pge=0.8902, expected range: -0.5937 0.7500
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=3.2622, expected range: 0.7398 1.8942
HIGH RESO LAND TEMP Q (G/KG) 71081 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.0667, expected range: 0.0000 0.8281
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 300-600 (HPA) : out of range
Severe: obs_number=174.0000, expected range: 89.9049 97.3451
HIGH RESO LAND TEMP TEMPERATURE (K) 57494 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=6.5012, expected range: 0.2799 1.9071
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (2 pressure layers affected : out of range
Severe: obs_number=553.0000, expected range: 444.1359 461.8641
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 42 : all data missing
Severe: obs_number=0, expected range: 0.00 314.41
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 46 : all data missing
Severe: obs_number=0, expected range: 105.63 756.73
All HIGH RESO SEA TEMP ALL LAYERS North East Pacific : all data missing
Severe: obs_number=0, expected range: 31.65 297.57
All BUFR TEMP DESCENT ALL LAYERS North Atlantic : all data missing
Severe: obs_number=0, expected range: 125.76 241.74
All BUFR TEMP DESCENT ALL LAYERS North pole : all data missing
Severe: obs_number=0, expected range: 153.86 203.14
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (3 pressure layers affected : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=566.0000, expected range: 659.3889 681.0556
amdar
AMDAR TEMPERATURE (K) 00040339 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=8.3836, expected range: 0.0000 7.6866
Severe: avg_pge=0.8606, expected range: -0.2947 0.7500
ADS-C WIND VECTOR DIFF (M/S) 0CU015BA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=17.0017, expected range: 0.7867 6.0540
prof
All EUROPEAN WIND PROFILER ALL LAYERS South West Pacific : all data missing
Severe: obs_number=0, expected range: 0.00 754.57
All EUROPEAN WIND PROFILER ALL LAYERS West pacific Tropica : all data missing
Severe: obs_number=0, expected range: 0.00 754.57
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 42701 PRESSURE LAYER 0-300 (HPA) : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=27.1452, expected range: 9.1422 37.2006
Severely_persistent: rms_fgdepar=28.3436, expected range: 7.8730 39.8252
Severely_persistent: avg_pge=0.8553, expected range: 0.4675 0.7500
synop
AUTOMATIC LAND SYNOP RH2M (%) 68493 : out of range
Severe: avg_pge=0.8834, expected range: -0.0282 0.0420
MANUAL LAND SYNOP RH2M (%) 68512 : out of range
Severe: rms_fgdepar=45.3584, expected range: 0.0000 20.7583
MANUAL LAND SYNOP RH2M (%) 60557 : out of range
Severe: rms_fgdepar=35.4689, expected range: 0.0000 19.8722
Severe: rms_fgdepar=38.1137, expected range: 0.0000 17.8634
MANUAL LAND SYNOP RH2M (%) 60549 : out of range
Severe: rms_fgdepar=37.8755, expected range: 0.0000 12.0357
BUFR LAND SYNOP Z (M) 56172 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9587, expected range: -0.4440 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48921 : out of range
Severe: rms_fgdepar=340.1132, expected range: 0.0000 147.4520
Severe: avg_pge=0.8151, expected range: -0.3579 0.4907
BUFR LAND SYNOP SURFACE PRESSURE (PA) 42871 : out of range
Severe: rms_fgdepar=468.1839, expected range: 0.0000 264.0437
BUFR LAND SYNOP SURFACE PRESSURE (PA) 38002 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=577.9375, expected range: 0.0000 202.4725
BUFR LAND SYNOP SURFACE PRESSURE (PA) 67323 : out of range
Severe: rms_fgdepar=351.8299, expected range: 0.0000 97.4045
Severe: avg_pge=0.8227, expected range: 0.0000 0.0000
BUFR LAND SYNOP RH2M (%) 16632 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=30.0754, expected range: 0.0000 12.7216
ship
SHIP SURFACE PRESSURE (PA) WTEK : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=568.0299, expected range: -1554.9713 1032.9158
Severely_persistent: rms_fgdepar=571.9512, expected range: 0.0000 1320.5479
Severely_persistent: avg_pge=0.8884, expected range: -0.8595 0.7500
ABBREVIATED SHIP SURFACE PRESSURE (PA) WTEK : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=553.3240, expected range: -1502.1704 1021.2389
Severely_persistent: rms_fgdepar=556.9153, expected range: 0.0000 1141.0073
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7OJ3 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-746.0117, expected range: -1228.2471 695.6003
Severely_persistent: rms_fgdepar=762.9711, expected range: 0.0000 1250.0111
Severely_persistent: avg_pge=0.8750, expected range: -1.5705 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 2EIF7 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=501.8638, expected range: 123.0988 963.5368
Severely_persistent: rms_fgdepar=501.8638, expected range: 123.0988 963.5368
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) ZCEE2 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8584, expected range: -0.8776 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) ELDMMXN : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8087, expected range: -0.5264 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V7980 : out of range
Severe: avg_fgdepar=570.0735, expected range: -836.1699 1010.6955
Severe: rms_fgdepar=570.0735, expected range: 0.0000 761.7466
Severe: avg_pge=0.8112, expected range: -1.1665 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OXSQ2 : out of range
Severe: avg_fgdepar=532.0933, expected range: -47.7407 792.8309
Severe: rms_fgdepar=532.0933, expected range: 0.0000 796.3282
Severe: avg_pge=0.8130, expected range: 0.0410 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OWUQ2 : out of range
Severe: avg_fgdepar=525.7563, expected range: -522.4543 707.6418
Severe: rms_fgdepar=525.7563, expected range: -448.7927 658.8200
Severe: avg_pge=0.8113, expected range: -1.1901 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) ZCBD3 : out of range
Severe: avg_fgdepar=572.1401, expected range: -229.5054 411.4726
Severe: rms_fgdepar=572.1401, expected range: 0.0000 570.3480
Severe: avg_pge=0.8263, expected range: -0.6169 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7OJ4 : out of range
Severe: avg_fgdepar=-515.3317, expected range: -702.6436 -254.1059
Severe: rms_fgdepar=515.3317, expected range: 254.1059 702.6436
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3ETR7 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=644.2977, expected range: -638.4135 1260.0188
Severe: rms_fgdepar=644.2977, expected range: 0.0000 1278.5983
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) C6SI4 : out of range
Severe: rms_fgdepar=22.1779, expected range: 0.0000 25.0761
Severe: avg_pge=0.8400, expected range: -0.6453 0.7500
buoy
DRIBU WIND VECTOR DIFF (M/S) 23454 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8671, expected range: 0.5925 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1501741 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-612.7406, expected range: -1970.8158 1794.9120
Severely_persistent: rms_fgdepar=622.5330, expected range: 0.0000 1211.6316
DRIFTING BUOYS SURFACE PRESSURE (PA) 2301740 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=387.2041, expected range: 0.3774 62.8611
DRIFTING BUOYS SURFACE PRESSURE (PA) 1701618 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8068, expected range: -1.0210 0.7500
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=-772.8858, expected range: -773.0631 -772.2905
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=772.8858, expected range: 772.2908 773.0629
t2m
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13CBF : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=15.9836, expected range: -16.7507 28.6621
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13CBF : out of range
15 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=16.0592, expected range: 0.0000 27.7036
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 55472 : out of range
Severe: avg_fgdepar=12.2424, expected range: 3.5388 14.7829
Severe: rms_fgdepar=12.2424, expected range: 3.5388 14.7829
rh2m
MANUAL LAND SYNOP RH2M (%) 07010 : out of range
Severe: rms_fgdepar=38.2182, expected range: 0.0000 19.9360
METAR RH2M (%) SBCJ : out of range
Severe: rms_fgdepar=32.0721, expected range: 4.0237 19.5767
BUFR LAND SYNOP RH2M (%) 08575 : out of range
Severe: rms_fgdepar=39.2366, expected range: 0.0000 21.8978