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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2018-07-17 12:00

atms
NOAA-20 ATMS radiances 9 : OutOfRange
Slightly: count(*)=36975, expected range: 37000.00 38000.00
NOAA-20 ATMS radiances 10 : OutOfRange
Slightly: count(*)=36974, expected range: 37000.00 38000.00
NOAA-20 ATMS radiances 11 : OutOfRange
Slightly: count(*)=36968, expected range: 37000.00 38000.00
NOAA-20 ATMS radiances 12 : OutOfRange
Slightly: count(*)=36954, expected range: 37000.00 38000.00
NOAA-20 ATMS radiances 14 : OutOfRange
Slightly: count(*)=36969, expected range: 37000.00 38000.00
NOAA-20 ATMS radiances 15 : OutOfRange
Slightly: count(*)=36972, expected range: 37000.00 38000.00
gpsro
All COSMIC-6 setting RO bending angles Missing
amdar
KH4HX4BA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=7, expected range: 0.92 4.80
Severely: rms(fg_depar)=9, expected range: 0.96 5.70
SGFHLIBA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=8, expected range: 0.14 5.10
Severely: rms(fg_depar)=10, expected range: 0.16 6.00
J0AGUUBA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: rms(fg_depar)=9, expected range: 0.35 6.00
0VVYQ2JA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=8, expected range: 0.98 5.70
Severely: rms(fg_depar)=10, expected range: 0.84 6.90
HINEOFJA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: rms(fg_depar)=11, expected range: 0.00 7.50
YOSHOGJA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=8, expected range: 1.50 5.70
Severely: rms(fg_depar)=11, expected range: 1.18 7.10
M3KIR3RA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: rms(fg_depar)=10, expected range: 0.00 6.70
XVHYR3RA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=11, expected range: -1.43 6.80
Severely: rms(fg_depar)=14, expected range: 0.00 8.70
GQ0XL5RA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: rms(fg_depar)=9, expected range: 0.05 6.20
YCNEOGRA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=8, expected range: 0.12 5.70
Severely: rms(fg_depar)=10, expected range: 0.00 7.10
BLNHQVRA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: rms(fg_depar)=11, expected range: 0.00 7.50
4BLEOEZA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=10, expected range: 0.07 5.50
Severely: rms(fg_depar)=13, expected range: 0.07 6.40
N05ZXMZA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: rms(fg_depar)=11, expected range: 0.00 7.60
SL0010 146 Temperature (k) 0 40000 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.00 1.48
RAWHL5RA 146 Temperature (k) 0 40000 : OutOfRange
Severely: rms(fg_depar)=1, expected range: 0.00 0.89
IBYWUURA 146 Temperature (k) 0 40000 : OutOfRange
2 times in the last 10 days for at least one item
Severely: avg(fg_depar)=4, expected range: -0.76 0.71
Severely: rms(fg_depar)=4, expected range: 0.00 1.36
SL0010 146 Temperature (k) 40000 70000 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.11 1.40
HPVWUWBA 146 Temperature (k) 40000 70000 : OutOfRange
2 times in the last 10 days for at least one item
Severely: rms(fg_depar)=2, expected range: 0.00 1.74
0ETENVJA 146 Temperature (k) 40000 70000 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.00 1.36
IBYWUURA 146 Temperature (k) 40000 70000 : OutOfRange
2 times in the last 10 days for at least one item
Severely: avg(fg_depar)=2, expected range: -1.18 0.87
Severely: rms(fg_depar)=2, expected range: 0.00 1.42
CT4EOHBA 146 Temperature (k) 70000 101325 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.07 1.81
4FSJFLBA 146 Temperature (k) 70000 101325 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.13 1.76
HUTUILBA 146 Temperature (k) 70000 101325 : OutOfRange
Severely: rms(fg_depar)=3, expected range: 0.00 2.10
HPVWUWBA 146 Temperature (k) 0 40000 : OutOfRange
Considerably: freq(qc_pge)=92, expected range: 0.00 75.00
SKWEIJZA 146 Temperature (k) 70000 101325 : OutOfRange
Considerably: freq(qc_pge)=78, expected range: 0.00 75.00
In-Situ measurements
TEMP Land Report Wind Vector difference (m/s) WMO BLOCK 25 0 40000 : OutOfRange
Severely: rms(fg_depar)=6, expected range: 0.96 4.50
Considerably: avg(fg_depar)=4, expected range: 1.19 3.30
All European Wind Profiler Wind Vector difference (m/s) 08 0 40000 Missing
All Land Automatic Report Surface pressure (Pa) WMO BLOCK 70 0 0 Missing
All PILOT Wind Vector difference (m/s) WMO BLOCK 70 0 40000 Missing
All PILOT Wind Vector difference (m/s) WMO BLOCK 91 0 40000 Missing
SYNOP Surface pressure (Pa) WMO BLOCK 98 0 0 : OutOfRange
Considerably: rms(fg_depar)=121, expected range: 37.00 104.00
BUOYS
48769 Drifter Buoy Surface pressure (Pa) : OutOfRange
6 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=60, expected range: 0.00 50.00
4601592 189 Surface pressure (Pa) : OutOfRange
9 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=100, expected range: 0.00 75.00
metar
EPIR METAR Surface pressure (Pa) : OutOfRange
Severely: rms(fg_depar)=219, expected range: 0.00 133.00
ship
AWUU SHIP Report Wind Vector difference (m/s) : OutOfRange
Severely_persistent: freq(qc_pge)=90, expected range: 0.00 50.00
V7NG2 SHIP Report Surface pressure (Pa) : OutOfRange
6 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=51, expected range: 0.00 50.00
V7DR9 SHIP Report Surface pressure (Pa) : OutOfRange
5 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=80, expected range: 0.00 50.00
AWUU SHIP Report Surface pressure (Pa) : OutOfRange
4 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=65, expected range: 0.00 50.00
VOLG Automatic SHIP Report Wind Vector difference (m/s) : OutOfRange
2 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=100, expected range: 0.00 75.00
synop
68549 Land Automatic Report Surface pressure (Pa) : OutOfRange
11 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=69, expected range: 0.00 50.00
07487 Land Automatic Report Surface pressure (Pa) : OutOfRange
Considerably: freq(qc_pge)=83, expected range: 0.00 75.00
Radiosondes
25123 TEMP Land Report Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=10, expected range: -0.34 4.80
Severely: rms(fg_depar)=13, expected range: 0.00 5.30
32150 TEMP Land Report Wind Vector difference (m/s) 0 40000 : OutOfRange
Considerably: freq(qc_pge)=100, expected range: 0.00 75.00