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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-04-16 00:00

cris
All NPP CrIS radiances Missing
NOAA-20 CrIS 614 radiances : OutOfRange
Slightly: avg(biascorr)=0, expected range: -0.22 -0.17
gpsro
All TANDEM-X rising RO bending angles Missing
All COSMIC-1 setting RO bending angles Missing
All COSMIC-1 rising RO bending angles Missing
All COSMIC-6 rising RO bending angles Missing
All TERRA-SAR-X setting RO bending angles Missing
ssmis
DMSP-17 SSMIS 5 allsky radiances : OutOfRange
1 times in the last 10 days for at least one item
Considerably: count(*)=20598, expected range: 23000.00 32000.00
DMSP-17 SSMIS 6 allsky radiances : OutOfRange
1 times in the last 10 days for at least one item
Considerably: count(*)=20741, expected range: 23000.00 32000.00
DMSP-17 SSMIS 7 allsky radiances : OutOfRange
1 times in the last 10 days for at least one item
Considerably: count(*)=20741, expected range: 23000.00 32000.00
DMSP-18 SSMIS 1 allsky radiances : OutOfRange
Considerably: count(*)=7834, expected range: 10400.00 16700.00
DMSP-18 SSMIS 6 allsky radiances : OutOfRange
Considerably: count(*)=13847, expected range: 17700.00 30000.00
DMSP-18 SSMIS 7 allsky radiances : OutOfRange
Considerably: count(*)=13617, expected range: 17400.00 29000.00
DMSP-18 SSMIS 9 allsky radiances : OutOfRange
Considerably: count(*)=10584, expected range: 13900.00 23000.00
DMSP-18 SSMIS 10 allsky radiances : OutOfRange
Considerably: count(*)=13795, expected range: 17700.00 29000.00
DMSP-18 SSMIS 11 allsky radiances : OutOfRange
Considerably: count(*)=13793, expected range: 17700.00 29000.00
DMSP-18 SSMIS 12 allsky radiances : OutOfRange
Considerably: count(*)=10769, expected range: 14100.00 23000.00
DMSP-18 SSMIS 13 allsky radiances : OutOfRange
Considerably: count(*)=10801, expected range: 14200.00 23000.00
DMSP-18 SSMIS 14 allsky radiances : OutOfRange
Considerably: count(*)=10776, expected range: 14100.00 23000.00
DMSP-18 SSMIS 15 allsky radiances : OutOfRange
Considerably: count(*)=10614, expected range: 14000.00 23000.00
DMSP-18 SSMIS 16 allsky radiances : OutOfRange
Considerably: count(*)=10689, expected range: 14000.00 23000.00
DMSP-18 SSMIS 17 allsky radiances : OutOfRange
Considerably: count(*)=10712, expected range: 14100.00 23000.00
DMSP-18 SSMIS 18 allsky radiances : OutOfRange
Considerably: count(*)=10767, expected range: 14100.00 23000.00
DMSP-17 SSMIS 1 allsky radiances : OutOfRange
2 times in the last 10 days for at least one item
Slightly: count(*)=9380, expected range: 10200.00 14700.00
DMSP-17 SSMIS 3 allsky radiances : OutOfRange
1 times in the last 10 days for at least one item
Slightly: count(*)=3980, expected range: 4300.00 7000.00
DMSP-17 SSMIS 8 allsky radiances : OutOfRange
2 times in the last 10 days for at least one item
Slightly: count(*)=13369, expected range: 15000.00 22000.00
DMSP-17 SSMIS 9 allsky radiances : OutOfRange
1 times in the last 10 days for at least one item
Slightly: count(*)=16153, expected range: 18000.00 26000.00
DMSP-17 SSMIS 10 allsky radiances : OutOfRange
1 times in the last 10 days for at least one item
Slightly: count(*)=24635, expected range: 26000.00 39000.00
DMSP-17 SSMIS 11 allsky radiances : OutOfRange
1 times in the last 10 days for at least one item
Slightly: count(*)=25891, expected range: 28000.00 41000.00
DMSP-17 SSMIS 12 allsky radiances : OutOfRange
2 times in the last 10 days for at least one item
Slightly: count(*)=13538, expected range: 15100.00 22000.00
DMSP-17 SSMIS 13 allsky radiances : OutOfRange
2 times in the last 10 days for at least one item
Slightly: count(*)=13576, expected range: 15200.00 22000.00
DMSP-17 SSMIS 14 allsky radiances : OutOfRange
2 times in the last 10 days for at least one item
Slightly: count(*)=13490, expected range: 15000.00 22000.00
DMSP-17 SSMIS 15 allsky radiances : OutOfRange
2 times in the last 10 days for at least one item
Slightly: count(*)=13418, expected range: 15000.00 22000.00
DMSP-17 SSMIS 16 allsky radiances : OutOfRange
2 times in the last 10 days for at least one item
Slightly: count(*)=13533, expected range: 15100.00 22000.00
DMSP-17 SSMIS 17 allsky radiances : OutOfRange
2 times in the last 10 days for at least one item
Slightly: count(*)=13491, expected range: 15100.00 22000.00
DMSP-17 SSMIS 18 allsky radiances : OutOfRange
2 times in the last 10 days for at least one item
Slightly: count(*)=13545, expected range: 15100.00 22000.00
DMSP-18 SSMIS 5 allsky radiances : OutOfRange
2 times in the last 10 days for at least one item
Slightly: avg(biascorr)=2, expected range: 2.50 3.10
amdar
EU0897 146 Q (g/kg) 40000 70000 : OutOfRange
Severely: rms(fg_depar)=0, expected range: 0.00 0.00
SYVGUURA 146 Temperature (k) 40000 70000 : OutOfRange
Severely: avg(fg_depar)=1, expected range: -1.21 0.58
Severely: rms(fg_depar)=2, expected range: 0.00 1.39
amsua
NOAA-15 AMSU-A 9 radiances : OutOfRange
10 times in the last 10 days for at least one item
Slightly: avg(biascorr)=0, expected range: 0.07 0.18
In-Situ measurements
All PILOT Wind Vector difference (m/s) WMO BLOCK 70 0 40000 Missing
All European Wind Profiler Wind Vector difference (m/s) 01 0 40000 Missing
All European Wind Profiler Wind Vector difference (m/s) 02 0 40000 Missing
TEMP Land Report Temperature (k) WMO BLOCK 47 0 40000 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.62 1.90
All TEMP Land Report Temperature (k) WMO BLOCK 38 40000 70000 Missing
All TEMP Land Report Temperature (k) WMO BLOCK 63 0 40000 Missing
All TEMP Land Report Temperature (k) WMO BLOCK 63 40000 70000 Missing
All TEMP Land Report Temperature (k) WMO BLOCK 76 0 40000 Missing
All TEMP Land Report Temperature (k) WMO BLOCK 76 40000 70000 Missing
All TEMP Land Report Temperature (k) WMO BLOCK 76 70000 101325 Missing
Land Automatic Report Surface pressure (Pa) 01 0 0 : OutOfRange
Slightly: count(*)=15, expected range: 3.50 14.80
TEMP Land Report Q (g/kg) WMO BLOCK 51 0 40000 : OutOfRange
Slightly: count(*)=18, expected range: 3.10 16.30
BUOYS
1601522 189 Surface pressure (Pa) : OutOfRange
19 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=98, expected range: 0.00 50.00
1501522 189 Surface pressure (Pa) : OutOfRange
Considerably: freq(qc_pge)=100, expected range: 0.00 75.00
metar
VABO METAR Surface pressure (Pa) : OutOfRange
1 times in the last 10 days for at least one item
Severely: avg(fg_depar)=232, expected range: -141.00 46.00
Severely: rms(fg_depar)=237, expected range: 0.30 143.00
KLSV METAR Surface pressure (Pa) : OutOfRange
1 times in the last 10 days for at least one item
Severely: rms(fg_depar)=310, expected range: 0.00 192.00
pilot
43369 PILOT Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=8, expected range: 1.90 6.00
Severely: rms(fg_depar)=10, expected range: 1.78 7.30
ship
VRRQ5 SHIP Report Surface pressure (Pa) : OutOfRange
6 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=71, expected range: 0.00 50.00
VRNS2 SHIP Report Wind Vector difference (m/s) : OutOfRange
6 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=69, expected range: 0.00 50.00
WDC7379 SHIP Report Wind Vector difference (m/s) : OutOfRange
4 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=92, expected range: 0.00 50.00
9V9404 SHIP Report Surface pressure (Pa) : OutOfRange
5 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=97, expected range: 0.00 50.00
WMKA SHIP Report Surface pressure (Pa) : OutOfRange
9 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=77, expected range: 0.00 50.00
YJUP4 Automatic SHIP Report Surface pressure (Pa) : OutOfRange
3 times in the last 10 days for at least one item
Severely_persistent: freq(qc_pge)=82, expected range: 0.00 50.00
V7AE7 SHIP Report Wind Vector difference (m/s) : OutOfRange
3 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=100, expected range: 0.00 75.00
CFL24 Automatic SHIP Report Wind Vector difference (m/s) : OutOfRange
Considerably: freq(qc_pge)=83, expected range: 0.00 75.00
AUCE Automatic SHIP Report Wind Vector difference (m/s) : OutOfRange
Considerably: freq(qc_pge)=100, expected range: 0.00 75.00
synop
86980 170 Surface pressure (Pa) : OutOfRange
Severely: rms(fg_depar)=144, expected range: 0.00 94.00
89662 Land Automatic Report Surface pressure (Pa) : OutOfRange
1 times in the last 10 days for at least one item
Considerably: freq(qc_pge)=90, expected range: 0.00 75.00
Radiosondes
31168 TEMP Land Report Wind Vector difference (m/s) 0 40000 : OutOfRange
Severely: avg(fg_depar)=8, expected range: 0.56 4.30
Severely: rms(fg_depar)=8, expected range: 0.62 5.00
47991 109 Q (g/kg) 0 40000 : OutOfRange
Severely: avg(fg_depar)=0, expected range: -0.00 0.00
47102 109 Temperature (k) 0 40000 : OutOfRange
Severely: rms(fg_depar)=11, expected range: 0.00 3.60
Severely: avg(fg_depar)=-5, expected range: -1.55 2.50
72293 109 Temperature (k) 0 40000 : OutOfRange
Severely: avg(fg_depar)=1, expected range: -0.34 0.97
72293 109 Temperature (k) 40000 70000 : OutOfRange
Severely: avg(fg_depar)=1, expected range: -0.56 1.04
Severely: rms(fg_depar)=2, expected range: 0.00 1.14
71802 109 Temperature (k) 0 40000 : OutOfRange
Severely: rms(fg_depar)=2, expected range: 0.56 1.86
89642 109 Q (g/kg) 40000 70000 : OutOfRange
Severely: rms(fg_depar)=0, expected range: 0.00 0.00