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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2018-02-04 12:00

gpsro
All COSMIC-1 setting RO bending angles Missing
All COSMIC-1 rising RO bending angles Missing
All COSMIC-6 rising RO bending angles Missing
amdar
0RPBPNBA 146 Temperature (k) 0 40000 : OutOfRange
Severely: avg(fg_depar)=-2, expected range: -1.15 1.23
Severely: rms(fg_depar)=3, expected range: 0.00 1.47
0UZUOGBA 146 Q (g/kg) 40000 70000 : OutOfRange
Severely: avg(fg_depar)=0, expected range: -0.00 0.00
DUKUOHBA 146 Temperature (k) 40000 70000 : OutOfRange
Severely: avg(fg_depar)=-1, expected range: -0.76 0.47
Severely: rms(fg_depar)=2, expected range: 0.00 1.30
D5DYWBJA 146 Temperature (k) 40000 70000 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.26 1.57
2CEUNVJA 146 Temperature (k) 40000 70000 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.00 1.56
M5B1CHZA 146 Temperature (k) 40000 70000 : OutOfRange
Severely: rms(fg_depar)=3, expected range: 0.00 1.42
OEGENVZA 146 Temperature (k) 40000 70000 : OutOfRange
Severely: rms(fg_depar)=3, expected range: 0.00 1.30
NI5UOFBA 146 Temperature (k) 70000 101325 : OutOfRange
Severely: rms(fg_depar)=3, expected range: 0.00 2.10
KYAYCIBA 146 Temperature (k) 70000 101325 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.09 1.81
STYIESBA 146 Temperature (k) 70000 101325 : OutOfRange
Severely: rms(fg_depar)=4, expected range: 0.00 2.30
BXAYQ2JA 146 Temperature (k) 70000 101325 : OutOfRange
Severely: rms(fg_depar)=3, expected range: 0.00 2.20
GLEHL5JA 146 Temperature (k) 70000 101325 : OutOfRange
Severely: rms(fg_depar)=3, expected range: 0.00 1.96
VLBIFAJA 146 Temperature (k) 70000 101325 : OutOfRange
Severely: rms(fg_depar)=3, expected range: 0.00 2.10
K4FWXFJA 146 Temperature (k) 70000 101325 : OutOfRange
Severely: rms(fg_depar)=4, expected range: 0.00 2.70
OP4UOGJA 146 Temperature (k) 70000 101325 : OutOfRange
Severely: rms(fg_depar)=3, expected range: 0.00 2.10
P3QUOGJA 146 Temperature (k) 70000 101325 : OutOfRange
Severely: rms(fg_depar)=3, expected range: 0.00 1.95
32SYO4RA 146 Temperature (k) 70000 101325 : OutOfRange
Severely: rms(fg_depar)=3, expected range: 0.00 2.10
ZMTEOGRA 146 Temperature (k) 70000 101325 : OutOfRange
Severely: rms(fg_depar)=3, expected range: 0.00 1.96
IH4KCORA 146 Temperature (k) 70000 101325 : OutOfRange
Severely: rms(fg_depar)=3, expected range: 0.00 1.89
RXQKP3ZA 146 Temperature (k) 70000 101325 : OutOfRange
Severely: rms(fg_depar)=3, expected range: 0.07 1.89
TXS0GCZA 146 Temperature (k) 70000 101325 : OutOfRange
Severely: avg(fg_depar)=-2, expected range: -1.12 1.41
32MEOEZA 146 Temperature (k) 70000 101325 : OutOfRange
Severely: rms(fg_depar)=3, expected range: 0.00 2.10
3VOYFRZA 146 Temperature (k) 70000 101325 : OutOfRange
Severely: rms(fg_depar)=3, expected range: 0.00 2.10
Atmospheric Motion Vector
AQUA IR 40000 70000 : OutOfRange
Slightly: avg(fg_depar)=-1, expected range: -1.18 1.05
In-Situ measurements
All European Wind Profiler Wind Vector difference (m/s) WMO BLOCK 11 0 400 Missing
All Moored Buoy Surface pressure (Pa) WMO BLOCK 32 0 0 Missing
All Moored Buoy Surface pressure (Pa) WMO BLOCK 51 0 0 Missing
AMDAR Temperature (k) North Pacific 70000 101325 : OutOfRange
Considerably: rms(fg_depar)=1, expected range: 0.62 1.21
European Wind Profiler Wind Vector difference (m/s) 03 0 40000 : OutOfRange
Slightly: count(*)=628, expected range: 850.00 2100.00
TEMP Land Report Temperature (k) WMO BLOCK 26 0 40000 : OutOfRange
Slightly: rms(fg_depar)=4, expected range: 0.00 4.00
TEMP Land Report Temperature (k) WMO BLOCK 78 0 40000 : OutOfRange
Slightly: rms(fg_depar)=1, expected range: 0.84 1.58
TEMP Land Report Wind Vector difference (m/s) 04 0 40000 : OutOfRange
Slightly: rms(fg_depar)=7, expected range: 0.30 7.30
BUOYS
2101581 189 Surface pressure (Pa) : OutOfRange
Severely: rms(fg_depar)=260, expected range: 0.00 140.00
5401589 189 Surface pressure (Pa) : OutOfRange
Severely: rms(fg_depar)=199, expected range: 0.00 127.00
1501512 189 Surface pressure (Pa) : OutOfRange
2 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=100, expected range: 0.00 70.00
3301537 189 Surface pressure (Pa) : OutOfRange
1 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=83, expected range: 0.00 70.00
metar
SBCC METAR Surface pressure (Pa) : OutOfRange
Severely: rms(fg_depar)=347, expected range: 0.00 210.00
KQRH METAR Surface pressure (Pa) : OutOfRange
1 times in the last 10 days for at least one item
Severely: rms(fg_depar)=102, expected range: 0.00 55.00
KPIM METAR Surface pressure (Pa) : OutOfRange
Severely: rms(fg_depar)=131, expected range: 0.00 87.00
GUCY METAR Surface pressure (Pa) : OutOfRange
Severely: rms(fg_depar)=311, expected range: 0.00 102.00
pilot
42182 PILOT Wind Vector difference (m/s) 0 40000 : OutOfRange
5 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=54, expected range: 0.00 50.00
ship
D5DS3 SHIP Report Wind Vector difference (m/s) : OutOfRange
2 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=65, expected range: 0.00 50.00
C6FW2 SHIP Report Surface pressure (Pa) : OutOfRange
7 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=73, expected range: 0.00 50.00
C6BR3 SHIP Report Surface pressure (Pa) : OutOfRange
1 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=85, expected range: 0.00 50.00
ZDNC6 SHIP Report Surface pressure (Pa) : OutOfRange
2 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=100, expected range: 0.00 50.00
VRPY7 SHIP Report Surface pressure (Pa) : OutOfRange
3 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=72, expected range: 0.00 50.00
SMLQ Automatic SHIP Report Surface pressure (Pa) : OutOfRange
4 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=55, expected range: 0.00 50.00
SBPR Automatic SHIP Report Surface pressure (Pa) : OutOfRange
8 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=92, expected range: 0.00 50.00
9V9040 SHIP Report Wind Vector difference (m/s) : OutOfRange
7 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=72, expected range: 0.00 70.00
42365 Automatic SHIP Report Wind Vector difference (m/s) : OutOfRange
6 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=100, expected range: 0.00 70.00
PBAD SHIP Report Wind Vector difference (m/s) : OutOfRange
Considerably: freq(qc_pge)=75, expected range: 0.00 70.00
synop
17371 170 Surface pressure (Pa) : OutOfRange
16 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=75, expected range: 0.00 50.00
63402 SYNOP Surface pressure (Pa) : OutOfRange
5 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=100, expected range: 0.00 50.00
04126 170 Surface pressure (Pa) : OutOfRange
8 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=53, expected range: 0.00 50.00
17500 170 Surface pressure (Pa) : OutOfRange
1 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=83, expected range: 0.00 70.00
93831 170 Surface pressure (Pa) : OutOfRange
2 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=100, expected range: 0.00 70.00
62432 SYNOP Surface pressure (Pa) : OutOfRange
Considerably: freq(qc_pge)=75, expected range: 0.00 70.00
04166 170 Surface pressure (Pa) : OutOfRange
2 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=71, expected range: 0.00 70.00
Radiosondes
SOCR3 TEMP SHIP Report U10m (m/s) 70000 101325 : OutOfRange
11 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=88, expected range: 0.00 50.00
SOCRATES 111 U10m (m/s) 70000 101325 : OutOfRange
6 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=89, expected range: 0.00 50.00
SOCRATES 111 V10m (m/s) 70000 101325 : OutOfRange
6 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=89, expected range: 0.00 50.00
30372 TEMP Land Report Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=9, expected range: -0.61 5.60
30372 TEMP Land Report Temperature (k) 0 40000 : OutOfRange
Severely: avg(fg_depar)=-2, expected range: -1.21 1.31
96935 TEMP Land Report Q (g/kg) 0 40000 : OutOfRange
Severely: rms(fg_depar)=0, expected range: 0.00 0.00
78486 TEMP Land Report Temperature (k) 0 40000 : OutOfRange
Severely: avg(fg_depar)=3, expected range: -0.77 1.24
Severely: rms(fg_depar)=4, expected range: 0.37 2.10