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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-08-04 12:00

cris
All NPP CRIS ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 14946.05 15900.95
atms
All NPP ATMS ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 11457.54 14022.50
ssmis
DMSP-18 SSMIS RADIANCES CHANNEL 10 : out of range
26 times in the last 10 days for at least one item
Severely_persistent: stdev_norm_fgdepar=0.4067, expected range: -0.0340 0.0973
Slight: stdev_norm_fgdepar=0.6494, expected range: 0.5874 0.5874
DMSP-17 SSMIS RADIANCES (5 channels affected) : out of range
10 times in the last 10 days for at least one item
Slight: stdev_norm_fgdepar=0.6046, expected range: 0.4890 0.4890
DMSP-18 SSMIS RADIANCES CHANNEL 9 : out of range
24 times in the last 10 days for at least one item
Slight: stdev_norm_fgdepar=0.6087, expected range: 0.5113 0.5113
DMSP-18 SSMIS RADIANCES CHANNEL 11 : out of range
20 times in the last 10 days for at least one item
Slight: stdev_norm_fgdepar=0.6992, expected range: 0.6393 0.6393
Atmospheric Motion Vector
All AQUA MODIS CLEAR WV ALL LAYERS Global : all data missing
Severely_persistent: obs_number=0, expected range: 54.36 1137.19
All NPP VIIRS AMV IR ALL LAYERS Global : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 1577.61
Radiosondes
LAND TEMP Q (G/KG) 38341 PRESSURE LAYER 900-1200 (HPA) : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=8.2501, expected range: -6.4631 21.1642
Severely_persistent: rms_fgdepar=8.2501, expected range: 0.0000 21.1881
LAND TEMP Q (G/KG) 36872 PRESSURE LAYER 900-1200 (HPA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=9.3021, expected range: -7.9743 14.5443
Severely_persistent: rms_fgdepar=9.4381, expected range: 0.0000 12.6393
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 20 : all data missing
Severely_persistent: obs_number=0, expected range: 125.99 184.51
All HIGH RESO SEA TEMP ALL LAYERS North West Pacific : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 290.88
LAND TEMP WIND VECTOR DIFF (M/S) 61052 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=18.3655, expected range: 1.5824 5.8232
LAND TEMP WIND VECTOR DIFF (M/S) 83928 (3 pressure layers affected) : out of range
Severe: rms_fgdepar=18.1984, expected range: 0.0000 9.3944
All LAND TEMP ALL LAYERS WMO BLOCK 96 : all data missing
Severe: obs_number=0, expected range: 144.99 385.76
All LAND TEMP ALL LAYERS WMO BLOCK 97 : all data missing
Severe: obs_number=0, expected range: 39.87 332.63
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : missing
Severe: obs_number=0.0000, expected range: 13.3622 362.2376
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 88 : all data missing
Severe: obs_number=0, expected range: 51.26 221.24
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: rms_fgdepar=4.4373, expected range: 0.1870 2.9394
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
Considerable: obs_number=259.0000, expected range: 165.2369 186.3187
amdar
WIGOS AMDAR Q (G/KG) BSTXQVBA PRESSURE LAYER 900-1200 (HPA) : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-8.6712, expected range: -10.6919 0.3865
Severely_persistent: rms_fgdepar=8.6720, expected range: 0.6558 10.4698
Severely_persistent: avg_pge=0.8858, expected range: -0.8067 0.7500
AMDAR WIND VECTOR DIFF (M/S) ANZ282 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.0385, expected range: 0.0000 7.9670
WIGOS AMDAR TEMPERATURE (K) V43EISRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=6.9386, expected range: 0.0000 2.3295
Severe: avg_pge=0.8446, expected range: -0.0408 0.0460
WIGOS AMDAR TEMPERATURE (K) TZ5WX0RA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=8.7027, expected range: 0.0000 4.3584
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU1407 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=21.3651, expected range: 0.0000 7.0734
WIGOS AMDAR WIND VECTOR DIFF (M/S) WCHBA4JA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.3558, expected range: 0.5144 7.1372
WIGOS AMDAR WIND VECTOR DIFF (M/S) R45ENWJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.6551, expected range: 0.0000 8.8753
WIGOS AMDAR WIND VECTOR DIFF (M/S) ACJITWJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=20.2109, expected range: 0.0000 5.8343
WIGOS AMDAR WIND VECTOR DIFF (M/S) G2Y1YLRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.2355, expected range: 0.7855 6.2569
WIGOS AMDAR WIND VECTOR DIFF (M/S) V43EISRA PRESSURE LAYER 0-300 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=21.5428, expected range: -37.2766 49.5196
Severe: rms_fgdepar=21.5907, expected range: -36.8117 49.4220
Severe: avg_pge=0.8705, expected range: -1.0801 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) UGVEOFZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.4274, expected range: 0.5611 7.0855
WIGOS AMDAR WIND VECTOR DIFF (M/S) 2EGXLIZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.0218, expected range: 0.0000 8.7390
WIGOS AMDAR WIND VECTOR DIFF (M/S) XIS2IPZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.1290, expected range: 0.0000 7.3810
WIGOS AMDAR WIND VECTOR DIFF (M/S) CWRFVSZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=26.8657, expected range: -3.4858 9.2112
Severe: rms_fgdepar=26.9874, expected range: 0.0000 10.1826
WIGOS AMDAR WIND VECTOR DIFF (M/S) 3YNHRVZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.7247, expected range: 0.0000 7.5936
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU1407 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_fgdepar=20.0869, expected range: -2.5574 6.9892
Severe: avg_pge=0.8401, expected range: -0.3301 0.5129
WIGOS AMDAR Q (G/KG) BPZGUWRA PRESSURE LAYER 900-1200 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-7.7541, expected range: -12.7512 11.1253
Severe: rms_fgdepar=7.7542, expected range: 0.0000 11.0554
Severe: avg_pge=0.9174, expected range: -1.1297 0.7500
WIGOS AMDAR Q (G/KG) GRBWUUZA PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-6.0320, expected range: -11.8850 4.6875
Severe: rms_fgdepar=6.0442, expected range: 0.0000 9.5163
ADS-C WIND VECTOR DIFF (M/S) GNKBWIBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=22.6696, expected range: 0.0000 12.4677
ADS-C WIND VECTOR DIFF (M/S) RSLICNRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.8610, expected range: 0.4033 6.7747
ADS-C WIND VECTOR DIFF (M/S) PB21SLZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=24.7464, expected range: 0.0000 9.2084
airep
AIREP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: rms_fgdepar=14.0101, expected range: 0.0000 8.3329
prof
All EUROPEAN WIND PROFILER ALL LAYERS South West Pacific : all data missing
Severe: obs_number=0, expected range: 0.00 1229.23
All EUROPEAN WIND PROFILER ALL LAYERS West pacific Tropica : all data missing
Severe: obs_number=0, expected range: 0.00 1229.23
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 42867 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=23.1629, expected range: 0.0000 6.0466
LAND PILOT WIND VECTOR DIFF (M/S) 83928 (3 pressure layers affected) : out of range
Severe: rms_fgdepar=18.1305, expected range: 0.6046 8.2840
synop
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71387 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8208, expected range: 0.5983 0.7500
BUFR LAND SYNOP RH2M (%) 41061 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=52.4986, expected range: -2.3250 27.6850
Severely_persistent: rms_fgdepar=53.2891, expected range: 0.0000 27.5560
Severely_persistent: avg_pge=1.0000, expected range: -1.1671 0.7500
AUTOMATIC LAND SYNOP Z (M) 11136 : out of range
Severe: rms_fgdepar=218.6990, expected range: 0.0000 152.3747
Severe: avg_pge=0.9837, expected range: -0.7740 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83522 : out of range
Severe: avg_pge=0.8007, expected range: 0.7036 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 37395 : out of range
Severe: rms_fgdepar=409.6837, expected range: 0.0000 230.3393
MANUAL LAND SYNOP RH2M (%) 62435 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=32.5413, expected range: 0.0000 8.9330
MANUAL LAND SYNOP RH2M (%) 66285 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9400, expected range: 0.4041 0.7500
MANUAL LAND SYNOP RH2M (%) 83916 : out of range
Severe: rms_fgdepar=44.9646, expected range: 0.0000 15.9952
MANUAL LAND SYNOP RH2M (%) 35699 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=35.2815, expected range: 0.0000 4.7851
BUFR LAND SYNOP SURFACE PRESSURE (PA) 44210 : out of range
Severe: rms_fgdepar=334.7152, expected range: 0.0000 160.4141
BUFR LAND SYNOP SURFACE PRESSURE (PA) 91682 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=456.9741, expected range: 0.0000 234.0450
Severe: avg_pge=0.8852, expected range: -0.7474 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=54.0000, expected range: 73.2222 76.5556
BUFR LAND SYNOP Z (M) 06615 : out of range
Severe: avg_pge=0.8330, expected range: -0.1004 0.7500
BUFR LAND SYNOP Z (M) 06685 : out of range
Severe: avg_pge=0.9324, expected range: -1.0170 0.7500
BUFR LAND SYNOP RH2M (%) 24644 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=32.3769, expected range: 0.0000 15.2851
BUFR LAND SYNOP RH2M (%) 51777 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9997, expected range: -1.8280 0.7500
BUFR LAND SYNOP RH2M (%) 23518 : out of range
Severe: rms_fgdepar=41.1151, expected range: 0.0000 33.0353
Severe: avg_pge=0.9988, expected range: -0.0802 0.1085
BUFR LAND SYNOP RH2M (%) 86638 : out of range
Severe: rms_fgdepar=33.0326, expected range: 9.0187 22.0345
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OXFU2 : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=554.6498, expected range: 270.1908 754.9894
Severely_persistent: rms_fgdepar=555.0781, expected range: 269.7439 755.9022
Severely_persistent: avg_pge=0.8145, expected range: 0.6963 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) D5VT5 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=983.9626, expected range: -1120.2349 2252.5709
Severely_persistent: rms_fgdepar=983.9626, expected range: 0.0000 2073.1598
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V9268 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=562.2899, expected range: -953.7424 1458.8852
Severely_persistent: rms_fgdepar=562.2899, expected range: 0.0000 1020.7197
Severely_persistent: avg_pge=0.8215, expected range: -0.5506 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9VKU8 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=965.1948, expected range: 577.0333 1326.2477
Severely_persistent: rms_fgdepar=965.1948, expected range: 578.4471 1325.6997
BUFR SHIP SYNOP SURFACE PRESSURE (PA) PJWM : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=768.2414, expected range: 174.1036 1133.4938
Severely_persistent: rms_fgdepar=768.2414, expected range: 174.1036 1133.4938
Severely_persistent: avg_pge=0.8761, expected range: 0.5646 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VRCF6 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8948, expected range: 0.5008 0.7500
ABBREVIATED SHIP SURFACE PRESSURE (PA) WTEK : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8285, expected range: -0.6990 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) YBBQ2 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=592.7966, expected range: -403.6699 1314.8613
Severe: rms_fgdepar=592.7966, expected range: 0.0000 1292.2358
Severe: avg_pge=0.8345, expected range: -0.8499 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRNU9 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=1194.7653, expected range: 883.7483 1468.0284
Severe: rms_fgdepar=1194.7653, expected range: 891.8925 1462.1152
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) YBBQ2 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8874, expected range: -0.0430 0.7500
buoy
DRIBU WIND VECTOR DIFF (M/S) 23451 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8927, expected range: 0.1664 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5401633 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8589, expected range: -1.0430 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 3301578 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8159, expected range: -1.5244 0.7500
MOORED BUOYS WIND VECTOR DIFF (M/S) : out of range
Considerable: obs_number=118.0000, expected range: 129.9689 133.7153
metar
METAR SURFACE PRESSURE (PA) FZQA : out of range
Severe: rms_fgdepar=445.4134, expected range: 0.0000 169.4868
METAR SURFACE PRESSURE (PA) KGYR : out of range
Severe: rms_fgdepar=390.3943, expected range: 0.0000 185.3123
AUTOMATIC METAR SURFACE PRESSURE (PA) KEED : out of range
Severe: rms_fgdepar=343.6763, expected range: 0.0000 190.4454
AUTOMATIC METAR SURFACE PRESSURE (PA) KBLH : out of range
Severe: rms_fgdepar=311.7290, expected range: 0.0000 140.8139
snow
MANUAL LAND SYNOP SNOW (CM) 87803 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-64.1303, expected range: -74.3656 -59.5182
Severely_persistent: rms_fgdepar=64.1303, expected range: 59.5182 74.3656
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=-772.6550, expected range: -773.7147 -772.0082
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=772.6551, expected range: 772.0084 773.7146
BUFR LAND SYNOP SNOW (CM) 87803 : out of range
Severe: avg_fgdepar=-64.1303, expected range: -78.1101 -57.1692
Severe: rms_fgdepar=64.1303, expected range: 57.0740 75.1211
t2m
METAR 2M TEMPERATURE (K) UGMS : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=13.2674, expected range: 8.7231 14.8262
Severely_persistent: rms_fgdepar=13.3365, expected range: 8.9652 14.7969
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 41250 : out of range
Severe: rms_fgdepar=10.0826, expected range: 0.0000 3.7250
MANUAL LAND SYNOP 2M TEMPERATURE (K) 36897 : out of range
Severe: rms_fgdepar=12.0773, expected range: 0.0000 12.9264
MANUAL LAND SYNOP 2M TEMPERATURE (K) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=212.0000, expected range: 265.1045 273.1955
METAR 2M TEMPERATURE (K) KIFP : out of range
Severe: rms_fgdepar=10.3898, expected range: 0.3463 4.7358
BUFR LAND SYNOP 2M TEMPERATURE (K) 24691 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-14.1987, expected range: -11.3473 9.5829
Severe: rms_fgdepar=14.3109, expected range: 0.0000 12.3733
rh2m
METAR RH2M (%) UAKK : out of range
Severe: rms_fgdepar=32.2200, expected range: 2.7327 19.0298
MANUAL LAND SYNOP RH2M (%) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=210.0000, expected range: 258.7262 274.1159