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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-06-16 00:00

amsua
METOP-B AMSUA ALL SKY RADIANCES CHANNEL 13 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1242, expected range: 0.1615 0.1962
METOP-C AMSUA ALL SKY RADIANCES CHANNEL 13 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.4179, expected range: -0.3521 -0.3267
mwhs2
FY-3C MWHS2 ALLSKY RADIANCES CHANNEL 12 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-1.2625, expected range: -1.4607 -1.3780
FY-3C MWHS2 ALLSKY RADIANCES CHANNEL 5 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.3112, expected range: -0.0481 0.1006
atms
NPP ATMS RADIANCES CHANNEL 18 : out of range
Severe: obs_number=290.0000, expected range: 0.0000 9.4520
NPP ATMS RADIANCES CHANNEL 19 : out of range
Severe: obs_number=290.0000, expected range: 0.0000 9.7180
NOAA20 ATMS RADIANCES CHANNEL 18 : out of range
Severe: obs_number=358.0000, expected range: 0.0000 11.5427
NOAA20 ATMS RADIANCES CHANNEL 19 : out of range
Severe: obs_number=359.0000, expected range: 0.0000 12.1138
gpsro
All TERRASAR-X GPSRO SETTING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 99.32 523.79
Geostationary CSR
HIMAWARI-8 AHI RADIANCES CHANNEL 3 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0980, expected range: 0.0200 0.0597
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 250-251 (HPA) : out of range
18 times in the last 10 days for at least one item
Slight: avg_fgdepar=-0.0134, expected range: -0.0991 -0.0991
Radiosondes
LAND TEMP TEMPERATURE (K) 32477 PRESSURE LAYER 0-300 (HPA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=14.0384, expected range: 0.0000 18.5211
LAND TEMP Q (G/KG) 38341 PRESSURE LAYER 900-1200 (HPA) : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=6.6874, expected range: 1.3112 10.8062
Severely_persistent: rms_fgdepar=6.7907, expected range: 1.4910 10.7468
LAND TEMP Q (G/KG) 61442 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=6.6903, expected range: 0.0000 12.2424
LAND TEMP Q (G/KG) 83525 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=5.2090, expected range: 0.0000 2.6431
HIGH RESO LAND TEMP Q (G/KG) 71836 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.4399, expected range: 0.0000 1.7040
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
Severe: obs_number=182.0000, expected range: 87.4645 94.5355
Severe: obs_number=182.0000, expected range: 87.8274 93.1726
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) (2 pressure layers affected) : out of range
Severe: obs_number=1399.0000, expected range: 22.8157 191.8611
ADS-C WIND VECTOR DIFF (M/S) 01CBZMBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=26.3677, expected range: 0.0000 9.1071
ADS-C WIND VECTOR DIFF (M/S) BU01OHJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.1208, expected range: 0.0000 13.2597
airep
AIREP WIND VECTOR DIFF (M/S) UAL44 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.5005, expected range: 0.0000 5.6298
synop
BUFR LAND SYNOP SURFACE PRESSURE (PA) 15270 : out of range
23 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8949, expected range: -1.3132 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41573 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=808.4884, expected range: 682.9940 978.1144
Severely_persistent: rms_fgdepar=808.5037, expected range: 681.5338 982.4979
MANUAL LAND SYNOP RH2M (%) 42103 : out of range
Severe: avg_fgdepar=50.6162, expected range: -8.0515 29.8982
Severe: rms_fgdepar=50.6750, expected range: 0.0000 32.2548
MANUAL LAND SYNOP RH2M (%) 42473 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=50.2898, expected range: -3.2443 61.4571
Severe: rms_fgdepar=50.2898, expected range: 0.0000 61.4571
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42101 : out of range
Severe: rms_fgdepar=355.4538, expected range: 0.0000 138.2164
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 87852 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=446.5083, expected range: 0.0000 200.6824
Severe: avg_pge=0.8667, expected range: -0.7324 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42103 : out of range
Severe: rms_fgdepar=321.2968, expected range: 0.0000 124.3706
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42398 : out of range
Severe: rms_fgdepar=415.1495, expected range: 0.0000 376.5376
Severe: avg_pge=0.8327, expected range: -0.0616 0.0700
MANUAL LAND SYNOP Z (M) 67743 : out of range
Severe: rms_fgdepar=196.9088, expected range: 0.0000 108.6789
BUFR LAND SYNOP RH2M (%) 60520 : out of range
Severe: avg_fgdepar=52.0950, expected range: -29.1088 42.7745
Severe: rms_fgdepar=52.0950, expected range: 0.0000 38.5912
BUFR LAND SYNOP RH2M (%) 42460 : out of range
Severe: avg_fgdepar=51.7998, expected range: -19.4400 30.4918
Severe: rms_fgdepar=51.7998, expected range: 0.0000 28.8697
Severe: avg_pge=0.9979, expected range: -0.0018 0.0085
BUFR LAND SYNOP SURFACE PRESSURE (PA) 60520 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=327.5903, expected range: 0.0000 295.3088
Severe: avg_pge=0.8655, expected range: 0.1980 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 42450 : out of range
Severe: avg_pge=0.8057, expected range: 0.6909 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 38262 : out of range
Severe: rms_fgdepar=372.4002, expected range: 0.0000 87.4392
Severe: avg_pge=0.8140, expected range: -0.5467 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 08025 : out of range
Severe: rms_fgdepar=372.9231, expected range: 0.0000 86.2137
BUFR LAND SYNOP SURFACE PRESSURE (PA) 60507 : out of range
Severe: avg_pge=0.8175, expected range: 0.2005 0.7500
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9HA3182 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9019, expected range: 0.5211 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7UX2 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=529.4283, expected range: 0.0000 1690.9563
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRTW3 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8415, expected range: -0.8414 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3FSA9 : out of range
27 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-603.0415, expected range: -1437.9119 541.8552
Severely_persistent: rms_fgdepar=603.0415, expected range: 0.0000 1436.5679
Severely_persistent: avg_pge=0.8615, expected range: 0.1388 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) H9LE : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=664.6520, expected range: -1135.7064 1578.6985
Severely_persistent: rms_fgdepar=664.6520, expected range: -1135.7064 1578.6985
Severely_persistent: avg_pge=0.8442, expected range: -1.7834 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) D5NK2 : out of range
Severe: avg_fgdepar=21.1911, expected range: -2.6436 21.4992
Severe: rms_fgdepar=21.1911, expected range: 0.0000 21.4992
Severe: avg_pge=0.9068, expected range: -0.1327 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) DIGX2 : out of range
Severe: avg_fgdepar=45.7811, expected range: -1.8318 7.7652
Severe: rms_fgdepar=45.7811, expected range: 0.0000 8.2191
Severe: avg_pge=0.9593, expected range: -0.7439 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) V7QJ3 : out of range
Severe: rms_fgdepar=17.7414, expected range: 0.0000 12.4211
Severe: avg_pge=0.9055, expected range: -1.0982 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) S6AN5 : out of range
Severe: rms_fgdepar=340.2284, expected range: 0.0000 186.3572
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7UU7 : out of range
Severe: avg_fgdepar=-514.5184, expected range: -318.5467 458.3230
Severe: rms_fgdepar=514.5184, expected range: 0.0000 372.0689
Severe: avg_pge=0.8390, expected range: -0.3825 0.4898
buoy
MOORED BUOYS SURFACE PRESSURE (PA) 4600082 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8216, expected range: -1.5058 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 3301510 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=431.6783, expected range: 0.0000 160.1682
Severe: avg_pge=0.8222, expected range: -0.6601 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 3301611 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-539.4762, expected range: -102.2963 61.0917
Severe: rms_fgdepar=548.6966, expected range: 0.0000 120.0529
Severe: avg_pge=0.9067, expected range: -0.3506 0.4323
metar
METAR SURFACE PRESSURE (PA) HTDO : out of range
Severe: rms_fgdepar=526.1767, expected range: 2.3970 141.5656
METAR SURFACE PRESSURE (PA) KATW : out of range
Severe: rms_fgdepar=335.5907, expected range: 0.0000 118.8601
AUTOMATIC METAR SURFACE PRESSURE (PA) NZCM : out of range
Severe: rms_fgdepar=421.0717, expected range: 0.0000 240.1859
snow
BUFR LAND SYNOP SNOW (CM) _MI1BC83 : out of range
34 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=56.6667, expected range: 43.6700 60.8800
BUFR LAND SYNOP SNOW (CM) _MI1BC83 : out of range
34 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=57.4514, expected range: 44.6438 62.3864
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=-772.8368, expected range: -775.0221 -771.5973
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=772.8368, expected range: 771.5973 775.0223
BUFR LAND SYNOP SNOW (CM) _MI1067E : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=57.5849, expected range: 50.9231 61.3068
BUFR LAND SYNOP SNOW (CM) _MI1067E : out of range
38 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=58.1413, expected range: 51.7153 61.5488
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-12.9416, expected range: -18.4050 -3.2608
Severely_persistent: rms_fgdepar=12.9425, expected range: 3.3616 18.4904
BUFR LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-12.9294, expected range: -18.6175 -3.2031
Severely_persistent: rms_fgdepar=12.9307, expected range: 3.3041 18.6980
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-19.9434, expected range: -21.3431 -13.5887
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
20 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=19.9434, expected range: 13.6339 21.3352
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
28 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-18.0279, expected range: -21.9538 -12.5654
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
28 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=18.0682, expected range: 12.6273 21.9832
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 60723 : out of range
Severe: avg_fgdepar=12.7180, expected range: -8.1380 6.4546
Severe: rms_fgdepar=12.7180, expected range: 0.0000 6.1209
MANUAL LAND SYNOP 2M TEMPERATURE (K) 67743 : out of range
Severe: avg_fgdepar=14.6196, expected range: -3.1145 2.9106
Severe: rms_fgdepar=14.6196, expected range: 0.0000 2.9291
MANUAL LAND SYNOP 2M TEMPERATURE (K) 14317 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=11.1681, expected range: 0.2378 3.0240
METAR 2M TEMPERATURE (K) RKSG : out of range
Severe: avg_fgdepar=-14.2876, expected range: -2.8318 2.5220
Severe: rms_fgdepar=14.2876, expected range: 0.1571 5.5312
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI15B3B : out of range
Severe: rms_fgdepar=10.1695, expected range: 1.0424 5.5752
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 72514 : out of range
Severe: rms_fgdepar=36.4002, expected range: 0.0000 17.2968
AUTOMATIC LAND SYNOP RH2M (%) 07037 : out of range
Severe: rms_fgdepar=33.2003, expected range: 0.0000 18.4647