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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2018-02-05 00:00

gpsro
All COSMIC-6 rising RO bending angles Missing
amdar
3LM1CIBA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=13, expected range: -0.33 8.50
G3SEESBA 146 Q (g/kg) 0 40000 : OutOfRange
Severely: avg(fg_depar)=0, expected range: -0.00 0.00
WVSIFABA 146 Temperature (k) 40000 70000 : OutOfRange
Severely: avg(fg_depar)=-2, expected range: -0.67 0.69
Severely: rms(fg_depar)=3, expected range: 0.00 1.56
FQDEOHBA 146 Temperature (k) 40000 70000 : OutOfRange
Severely: avg(fg_depar)=-1, expected range: -0.52 0.55
Severely: rms(fg_depar)=2, expected range: 0.00 1.18
UTJFGCRA 146 Temperature (k) 40000 70000 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.00 1.53
EU0860 146 Temperature (k) 70000 101325 : OutOfRange
Severely: avg(fg_depar)=-2, expected range: -1.29 0.98
Severely: rms(fg_depar)=5, expected range: 0.00 2.40
EU5002 146 Temperature (k) 70000 101325 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.07 1.76
CT4EOHBA 146 Temperature (k) 70000 101325 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.06 1.96
YQLIEWJA 146 Temperature (k) 70000 101325 : OutOfRange
Severely: avg(fg_depar)=6, expected range: -1.38 1.10
Severely: rms(fg_depar)=9, expected range: 0.00 2.30
3USUOGRA 146 Temperature (k) 70000 101325 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.02 1.95
QA2EOFZA 146 Q (g/kg) 70000 101325 : OutOfRange
Severely: avg(fg_depar)=0, expected range: -0.00 0.00
DIJX1DJA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
2 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=100, expected range: 0.00 70.00
4ICIELZA 146 Wind Vector difference (m/s) 0 40000 : OutOfRange
Considerably: freq(qc_pge)=75, expected range: 0.00 70.00
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
All TEMP Land Report Temperature (k) WMO BLOCK 65 70000 101325 Missing
European Wind Profiler Wind Vector difference (m/s) 03 0 40000 : OutOfRange
1 times in the last 10 days for at least one item
Slightly: count(*)=773, expected range: 800.00 2100.00
TEMP Land Report Temperature (k) WMO BLOCK 93 0 40000 : OutOfRange
1 times in the last 10 days for at least one item
Slightly: rms(fg_depar)=2, expected range: 0.00 1.99
TEMP Land Report Wind Vector difference (m/s) WMO BLOCK 93 0 40000 : OutOfRange
1 times in the last 10 days for at least one item
Slightly: avg(fg_depar)=6, expected range: 0.04 6.30
Slightly: rms(fg_depar)=8, expected range: 0.00 7.60
BUOYS
2301708 189 Surface pressure (Pa) : OutOfRange
5 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=51, expected range: 0.00 50.00
1700653 189 Surface pressure (Pa) : OutOfRange
1 times in the last 10 days for at least one item
Severely: rms(fg_depar)=122, expected range: 0.00 75.00
3201505 189 Surface pressure (Pa) : OutOfRange
Severely: avg(fg_depar)=172, expected range: -35.00 103.00
Severely: rms(fg_depar)=204, expected range: 0.00 101.00
4700555 189 Surface pressure (Pa) : OutOfRange
Severely: rms(fg_depar)=322, expected range: 0.00 193.00
4401565 189 Surface pressure (Pa) : OutOfRange
Severely: rms(fg_depar)=254, expected range: 0.00 149.00
4401558 189 Surface pressure (Pa) : OutOfRange
Severely: rms(fg_depar)=311, expected range: 0.00 156.00
1501512 189 Surface pressure (Pa) : OutOfRange
3 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=100, expected range: 0.00 70.00
metar
MGPB METAR Surface pressure (Pa) : OutOfRange
Severely: rms(fg_depar)=261, expected range: 0.00 173.00
CYHE METAR Surface pressure (Pa) : OutOfRange
Severely: rms(fg_depar)=391, expected range: 0.00 240.00
BIEG METAR Surface pressure (Pa) : OutOfRange
Severely: rms(fg_depar)=246, expected range: 0.00 162.00
LPMR METAR Surface pressure (Pa) : OutOfRange
Severely: rms(fg_depar)=185, expected range: 0.00 99.00
DAAS METAR Surface pressure (Pa) : OutOfRange
1 times in the last 10 days for at least one item
Severely: rms(fg_depar)=181, expected range: 0.00 104.00
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)=52, expected range: 0.00 50.00
ship
C6FW2 SHIP Report Surface pressure (Pa) : OutOfRange
8 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=72, expected range: 0.00 50.00
C6BR3 SHIP Report Surface pressure (Pa) : OutOfRange
2 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=86, expected range: 0.00 50.00
VRKX8 SHIP Report Surface pressure (Pa) : OutOfRange
15 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=98, expected range: 0.00 50.00
SMLQ Automatic SHIP Report Surface pressure (Pa) : OutOfRange
5 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=56, expected range: 0.00 50.00
SBPR Automatic SHIP Report Surface pressure (Pa) : OutOfRange
9 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=93, expected range: 0.00 50.00
9V9040 SHIP Report Wind Vector difference (m/s) : OutOfRange
8 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=100, expected range: 0.00 70.00
44037 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)=75, expected range: 0.00 70.00
BATFR09 Automatic SHIP Report Wind Vector difference (m/s) : OutOfRange
Considerably: freq(qc_pge)=80, expected range: 0.00 70.00
synop
63402 SYNOP Surface pressure (Pa) : OutOfRange
6 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)=54, expected range: 0.00 50.00
08486 170 Surface pressure (Pa) : OutOfRange
6 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=55, expected range: 0.00 50.00
71180 170 Surface pressure (Pa) : OutOfRange
Considerably: freq(qc_pge)=75, expected range: 0.00 70.00
08271 170 Surface pressure (Pa) : OutOfRange
6 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=100, expected range: 0.00 70.00
01203 170 Surface pressure (Pa) : OutOfRange
Considerably: freq(qc_pge)=83, expected range: 0.00 70.00
86185 SYNOP Surface pressure (Pa) : OutOfRange
1 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=75, expected range: 0.00 70.00
Radiosondes
SOCR3 TEMP SHIP Report U10m (m/s) 70000 101325 : OutOfRange
12 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=88, expected range: 0.00 50.00
SOCR3 TEMP SHIP Report V10m (m/s) 70000 101325 : OutOfRange
12 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
7 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
7 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=89, expected range: 0.00 50.00
01004 109 Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=8, expected range: 0.81 4.80
Severely: rms(fg_depar)=9, expected range: 1.04 5.70
04320 109 Temperature (k) 0 40000 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.10 1.47
01004 109 Temperature (k) 0 40000 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.06 1.48
32477 TEMP Land Report Temperature (k) 0 40000 : OutOfRange
Severely: rms(fg_depar)=7, expected range: 0.00 4.10
98618 TEMP Land Report Temperature (k) 0 40000 : OutOfRange
Severely: avg(fg_depar)=11, expected range: -0.75 1.63
Severely: rms(fg_depar)=13, expected range: 0.00 3.60
04339 109 Q (g/kg) 0 40000 : OutOfRange
Severely: rms(fg_depar)=0, expected range: 0.00 0.00
78397 TEMP Land Report Temperature (k) 40000 70000 : OutOfRange
Severely: rms(fg_depar)=3, expected range: 0.00 2.30
72210 109 Temperature (k) 70000 101325 : OutOfRange
Severely: rms(fg_depar)=3, expected range: 0.00 1.81
72210 109 Temperature (k) 40000 70000 : OutOfRange
Considerably: freq(qc_pge)=100, expected range: 0.00 70.00
29572 TEMP Land Report Temperature (k) 40000 70000 : OutOfRange
1 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=75, expected range: 0.00 70.00