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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-08-09 00:00

cris
All NPP CRIS ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 14961.12 15882.11
atms
All NPP ATMS ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 11507.80 13938.98
Atmospheric Motion Vector
All AQUA MODIS CLEAR WV ALL LAYERS Global : all data missing
Severely_persistent: obs_number=0, expected range: 102.15 1108.46
All NPP VIIRS AMV IR ALL LAYERS Global : all data missing
Severely_persistent: obs_number=0, expected range: 136.73 1436.89
Radiosondes
LAND TEMP Q (G/KG) 35700 PRESSURE LAYER 900-1200 (HPA) : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=6.1780, expected range: -2.9673 12.1487
Severely_persistent: rms_fgdepar=6.8220, expected range: 0.0000 12.5567
LAND TEMP Q (G/KG) 38341 PRESSURE LAYER 900-1200 (HPA) : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=6.2546, expected range: 0.3222 10.4378
Severely_persistent: rms_fgdepar=6.2975, expected range: 0.3917 10.4318
LAND TEMP WIND VECTOR DIFF (M/S) 42701 PRESSURE LAYER 0-300 (HPA) : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=20.7717, expected range: -4.5975 42.2973
Severely_persistent: rms_fgdepar=22.0708, expected range: 0.0000 45.5392
All HIGH RESO LAND TEMP ALL LAYERS South pole : all data missing
Severely_persistent: obs_number=0, expected range: 67.09 460.70
LAND TEMP Q (G/KG) 41169 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=6.0532, expected range: 0.0000 6.7710
LAND TEMP TEMPERATURE (K) 17095 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=6.8463, expected range: 0.3770 1.5605
LAND TEMP TEMPERATURE (K) 76612 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=7.0399, expected range: 0.0069 3.1175
Severe: avg_pge=0.8569, expected range: -0.4282 0.7487
LAND TEMP WIND VECTOR DIFF (M/S) 42701 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_pge=0.8148, expected range: -0.3034 0.7500
All LAND TEMP ALL LAYERS WMO BLOCK 98 : all data missing
Severe: obs_number=0, expected range: 184.79 329.46
HIGH RESO LAND TEMP Q (G/KG) 03808 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.2413, expected range: 0.0000 1.5254
HIGH RESO SEA TEMP Q (G/KG) (2 pressure layers affected) : out of range
Severe: obs_number=190.0000, expected range: 276.1118 291.6382
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 900-1200 (HPA) : out of range
3 times in the last 10 days for at least one item
Considerable: rms_fgdepar=1.4678, expected range: 0.1121 1.0131
HIGH RESO SEA TEMP TEMPERATURE (K) (4 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=245.0000, expected range: 105.3751 131.9583
HIGH RESO SEA TEMP Q (G/KG) PRESSURE LAYER 900-1200 (HPA) : out of range
Slight: rms_fgdepar=1.1272, expected range: 0.0450 1.0912
amdar
WIGOS AMDAR Q (G/KG) GRBWUUZA PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=6.7587, expected range: 0.5019 7.8628
WIGOS AMDAR TEMPERATURE (K) EU1101 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=9.0877, expected range: 0.0000 6.1545
WIGOS AMDAR WIND VECTOR DIFF (M/S) NSEIR3RA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.1815, expected range: 0.0000 9.2375
airep
AIREP WIND VECTOR DIFF (M/S) ANZ945 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=30.0500, expected range: 0.0247 10.8362
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 42701 (2 pressure layers affected) : out of range
Severe: avg_fgdepar=24.3537, expected range: -10.7339 51.3672
Severe: rms_fgdepar=24.3537, expected range: 0.0000 54.7392
LAND PILOT WIND VECTOR DIFF (M/S) 42701 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_pge=0.8323, expected range: -0.7265 0.7500
LAND PILOT WIND VECTOR DIFF (M/S) 89664 PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=17.8626, expected range: 0.0000 15.6905
Severe: avg_pge=0.8883, expected range: -1.1234 0.7500
BUFR LAND PILOT WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : missing
Severe: obs_number=0.0000, expected range: 25.6492 160.3011
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 63533 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=500.0054, expected range: 305.1025 617.2027
Severely_persistent: rms_fgdepar=500.0054, expected range: 305.1035 617.2186
BUFR LAND SYNOP SURFACE PRESSURE (PA) 30673 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=359.8889, expected range: 0.0000 183.4453
Severely_persistent: avg_pge=0.8163, expected range: -0.4748 0.6185
BUFR LAND SYNOP SURFACE PRESSURE (PA) 42450 : out of range
Severe: rms_fgdepar=458.2417, expected range: 7.7260 73.5724
Severe: avg_pge=0.8912, expected range: -0.1697 0.1955
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71476 : out of range
Severe: avg_pge=0.8082, expected range: 0.0574 0.7500
BUFR LAND SYNOP RH2M (%) 95843 : out of range
Severe: rms_fgdepar=36.1727, expected range: 0.0000 16.7185
BUFR LAND SYNOP RH2M (%) 23518 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=46.5547, expected range: 0.0000 13.9482
All BUFR LAND SYNOP WMO BLOCK 98 : all data missing
Severe: obs_number=0, expected range: 78.92 88.83
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) ELDMMXN : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8929, expected range: -1.1069 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) A8PQ4 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=653.5090, expected range: -682.4311 1425.9221
Severely_persistent: rms_fgdepar=653.5090, expected range: 0.0000 1421.0131
Severely_persistent: avg_pge=0.8250, expected range: -0.6870 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) D5VT5 : out of range
36 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=668.7194, expected range: 32.0545 1617.6342
Severely_persistent: rms_fgdepar=704.3271, expected range: 39.7231 1613.3970
Severely_persistent: avg_pge=0.8500, expected range: 0.2860 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=539.9196, expected range: 170.9643 1000.9003
Severely_persistent: rms_fgdepar=539.9196, expected range: 170.9643 1000.9003
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6NR7 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=632.7942, expected range: -1307.0377 1503.5696
Severely_persistent: rms_fgdepar=638.9310, expected range: -983.2499 1357.8065
Severely_persistent: avg_pge=0.9067, expected range: -1.4268 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9VKU8 : out of range
24 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=1036.4868, expected range: 742.0071 1209.2022
Severely_persistent: rms_fgdepar=1037.0453, expected range: 742.5060 1209.1461
AUTOMATIC SHIP SURFACE PRESSURE (PA) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=646.0000, expected range: 809.3072 833.1634
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) ZCEE2 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=23.1839, expected range: -1.5344 7.5288
Severe: rms_fgdepar=23.1839, expected range: 0.0000 8.1837
Severe: avg_pge=0.8323, expected range: -0.7447 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V7010 : out of range
Severe: rms_fgdepar=590.5701, expected range: 0.0000 207.7654
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WDL2611 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=385.2880, expected range: 0.0000 141.9574
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7OJ5 : out of range
Severe: avg_fgdepar=1329.9684, expected range: 827.1738 1453.6864
Severe: rms_fgdepar=1329.9684, expected range: 821.9147 1461.6370
BUFR SHIP SYNOP SURFACE PRESSURE (PA) LAMG7 : out of range
Severe: rms_fgdepar=595.3664, expected range: 0.0000 354.3910
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V6949 : out of range
Severe: avg_fgdepar=723.3345, expected range: -303.4755 215.1529
Severe: rms_fgdepar=986.1436, expected range: 0.0000 272.3898
BUFR SHIP SYNOP SURFACE PRESSURE (PA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=502.6552, expected range: -962.2030 879.9572
Severe: rms_fgdepar=502.6552, expected range: 0.0000 809.7264
buoy
DRIBU WIND VECTOR DIFF (M/S) 23451 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9074, expected range: 0.1310 0.7500
DRIBU WIND VECTOR DIFF (M/S) 23454 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9039, expected range: -0.4695 0.7500
MOORED BUOYS WIND VECTOR DIFF (M/S) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=111.0000, expected range: 130.2720 133.5058
metar
METAR SURFACE PRESSURE (PA) FQTT : out of range
Severe: rms_fgdepar=325.7386, expected range: 0.0000 164.6864
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=-772.7459, expected range: -773.7067 -772.0523
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=772.7460, expected range: 772.0524 773.7067
t2m
METAR 2M TEMPERATURE (K) TISX : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=12.1063, expected range: 0.0000 17.4695
BUFR LAND SYNOP 2M TEMPERATURE (K) _MF1E194 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.9413, expected range: 0.6038 5.3366
BUFR LAND SYNOP 2M TEMPERATURE (K) 68176 : out of range
Severe: avg_fgdepar=-12.1105, expected range: -8.0147 4.0924
Severe: rms_fgdepar=12.1105, expected range: 0.0000 9.1107
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13CBF : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=19.1322, expected range: -4.1428 6.6929
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13CBF : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=19.1411, expected range: 0.0000 6.4652
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13CBF : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8017, expected range: -0.0991 0.3010
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 70316 : out of range
Severe: rms_fgdepar=39.8335, expected range: 0.0000 21.5031
MANUAL LAND SYNOP RH2M (%) 60550 : out of range
Severe: rms_fgdepar=30.3117, expected range: 0.0000 13.7601