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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-08-11 12:00

gpsro
SENTINEL 6A GPSRO SETTING HEIGHT 4-6 KM : out of range
Severe: avg_norm_fgdepar=0.1859, expected range: -0.0275 0.0929
SENTINEL 6A GPSRO SETTING HEIGHT 8-10 KM : out of range
Severe: avg_norm_fgdepar=0.3596, expected range: -0.1157 0.1026
SPIRE LEMUR 3U GPSRO RISING (24 impact heights affected) : out of range
Slight: obs_number=3510.0000, expected range: 2012.8525 2791.9710
SENTINEL 6A GPSRO SETTING HEIGHT 2-4 KM : out of range
Slight: avg_norm_fgdepar=0.0394, expected range: -0.1545 -0.0130
SENTINEL 6A GPSRO SETTING HEIGHT 6-8 KM : out of range
Slight: avg_norm_fgdepar=0.2459, expected range: -0.0990 0.1521
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
Radiosondes
LAND TEMP Q (G/KG) 35700 PRESSURE LAYER 900-1200 (HPA) : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=7.5016, expected range: -5.8534 16.2949
Severely_persistent: rms_fgdepar=7.5672, expected range: 0.0000 15.3642
LAND TEMP TEMPERATURE (K) 29572 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=12.5678, expected range: -3.6968 5.2003
LAND TEMP TEMPERATURE (K) 29572 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=12.5678, expected range: 0.0000 10.5205
Severe: avg_pge=0.9062, expected range: -0.1601 0.4113
LAND TEMP Q (G/KG) 36872 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_fgdepar=8.8759, expected range: -3.1954 3.4494
Severe: rms_fgdepar=9.2335, expected range: 0.0000 3.8703
Severe: avg_pge=0.9441, expected range: -0.0164 0.0278
LAND TEMP WIND VECTOR DIFF (M/S) 17095 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=20.7378, expected range: 0.0000 8.0383
Severe: avg_pge=0.8049, expected range: -0.3195 0.5686
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
Severe: obs_number=764.0000, expected range: 853.2450 864.5050
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 20 : all data missing
Severe: obs_number=0, expected range: 134.54 163.12
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 46 : all data missing
Severe: obs_number=0, expected range: 256.65 324.85
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 83 : all data missing
Severe: obs_number=0, expected range: 51.21 116.79
HIGH RESO SEA TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=4.3210, expected range: 0.0000 1.4708
Severe: rms_fgdepar=4.8996, expected range: 0.0000 1.6643
All HIGH RESO SEA TEMP ALL LAYERS North East Pacific : all data missing
Severe: obs_number=0, expected range: 95.27 140.23
amdar
AMDAR WIND VECTOR DIFF (M/S) JP9Z5YVZ PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=16.3603, expected range: 0.0000 6.6411
TAMDAR WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : missing
1 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 0.0000 258.2130
WIGOS AMDAR Q (G/KG) JOHWUUBA PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-6.3326, expected range: -9.1721 5.4022
Severe: rms_fgdepar=6.4803, expected range: 0.0000 10.2119
ADS-C WIND VECTOR DIFF (M/S) QPNEILBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.3924, expected range: 0.6142 7.0697
ADS-C WIND VECTOR DIFF (M/S) EGUJ4NZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.0103, expected range: 0.0000 8.0964
prof
All EUROPEAN WIND PROFILER ALL LAYERS South West Pacific : all data missing
Severe: obs_number=0, expected range: 0.00 2457.72
All EUROPEAN WIND PROFILER ALL LAYERS West pacific Tropica : all data missing
Severe: obs_number=0, expected range: 0.00 2457.72
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 97072 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=15.8349, expected range: 0.3407 4.0418
Severe: avg_pge=0.8974, expected range: -0.4525 0.6578
synop
AUTOMATIC LAND SYNOP RH2M (%) 18156 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9956, expected range: -0.8512 0.7500
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=521.9679, expected range: 227.4334 722.6380
Severely_persistent: rms_fgdepar=521.9917, expected range: 226.7826 723.9198
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71387 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8060, expected range: 0.6425 0.7500
MANUAL LAND SYNOP Z (M) 38462 : out of range
Severe: avg_pge=0.9800, expected range: -1.4283 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42704 : out of range
Severe: rms_fgdepar=315.2852, expected range: 0.0000 155.4381
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 89564 : out of range
Severe: rms_fgdepar=413.4222, expected range: 0.0000 318.0532
Severe: avg_pge=0.8614, expected range: -1.2090 0.7500
MANUAL LAND SYNOP RH2M (%) 61043 : out of range
Severe: rms_fgdepar=30.2998, expected range: 0.0000 16.8615
Severe: rms_fgdepar=30.4478, expected range: 0.0000 16.6770
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48940 : out of range
Severe: rms_fgdepar=384.5077, expected range: 0.0000 309.8191
Severe: avg_pge=0.8069, expected range: -0.8058 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 16560 : out of range
Severe: rms_fgdepar=415.4815, expected range: 0.0000 97.8069
ship
SHIP SURFACE PRESSURE (PA) WTEK : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8304, expected range: -0.6141 0.7500
ABBREVIATED SHIP SURFACE PRESSURE (PA) WTEK : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8064, expected range: -0.4591 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7OJ3 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-971.6013, expected range: -1737.4733 1038.3037
Severely_persistent: rms_fgdepar=971.6013, expected range: 0.0000 1746.3064
Severely_persistent: avg_pge=0.9036, expected range: -1.3943 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7OJ5 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=1055.8666, expected range: 835.1153 1540.6818
Severely_persistent: rms_fgdepar=1055.8666, expected range: 835.6660 1542.2245
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) A8FG3 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8976, expected range: -0.6087 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) C6BQ4 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8734, expected range: -0.9124 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) ELDMMXN : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8277, expected range: -0.7451 0.7500
BUFR SHIP SYNOP RH2M (%) DCQN : out of range
Severe: rms_fgdepar=38.3312, expected range: 0.0000 29.2368
Severe: avg_pge=0.8769, expected range: -0.0171 0.0285
buoy
DRIBU WIND VECTOR DIFF (M/S) 23454 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8786, expected range: 0.0403 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4602500 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8048, expected range: -1.5742 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2301740 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=319.2197, expected range: 0.0000 74.1855
Severe: avg_pge=0.8137, expected range: -0.0915 0.1208
DRIFTING BUOYS SURFACE PRESSURE (PA) 1701618 : out of range
Severe: avg_pge=0.8194, expected range: -1.0210 0.7500
metar
METAR SURFACE PRESSURE (PA) EPNA : out of range
Severe: avg_fgdepar=-674.6721, expected range: -112.8739 152.8316
Severe: rms_fgdepar=676.1348, expected range: 0.0000 119.9717
Severe: avg_pge=0.8481, expected range: 0.0000 0.0000
METAR SURFACE PRESSURE (PA) ENVR : out of range
Severe: rms_fgdepar=420.4188, expected range: 0.0000 143.1570
METAR SURFACE PRESSURE (PA) VEJS : out of range
Severe: rms_fgdepar=518.5920, expected range: 0.0000 133.1676
snow
MANUAL LAND SYNOP SNOW (CM) 37552 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=66.0000, expected range: 6.1266 96.4984
Severely_persistent: rms_fgdepar=66.0000, expected range: 8.5388 96.3982
MANUAL LAND SYNOP SNOW (CM) 87803 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-55.3070, expected range: -74.3970 -48.3492
Severely_persistent: rms_fgdepar=55.3070, expected range: 48.3492 74.3970
BUFR LAND SYNOP SNOW (CM) 87803 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-55.3070, expected range: -74.2949 -47.5113
Severely_persistent: rms_fgdepar=55.3070, expected range: 47.5113 74.2949
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=-772.7266, expected range: -773.1027 -772.2870
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=772.7267, expected range: 772.2873 773.1026
t2m
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13CBF : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=16.9466, expected range: -17.2044 28.3605
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13CBF : out of range
13 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=17.0689, expected range: 0.0000 27.3512
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 68014 : out of range
Severe: avg_fgdepar=-12.1064, expected range: -10.3727 3.0091
Severe: rms_fgdepar=12.1064, expected range: 0.0000 10.5969
LAND TEMP 2M TEMPERATURE (K) 61052 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=12.5463, expected range: 0.0000 12.4922
rh2m
METAR RH2M (%) VEBI : out of range
Severe: rms_fgdepar=37.5480, expected range: 0.0000 18.1692