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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2020-01-14 00:00

amsua
NOAA-18 AMSUA RADIANCES CHANNEL 6 : out of range
Severe: avg_fgdepar=0.1068, expected range: -0.0207 0.0455
Considerable: stdev_fgdepar=0.1734, expected range: 0.1455 0.1667
METOP-A AMSUA RADIANCES CHANNEL 10 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-0.0862, expected range: -0.0118 0.0288
METOP-A AMSUA RADIANCES CHANNEL 11 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-0.0972, expected range: -0.0425 0.0649
NOAA-18 AMSUA RADIANCES CHANNEL 11 : out of range
Considerable: stdev_fgdepar=0.2725, expected range: 0.2335 0.2597
NOAA-18 AMSUA RADIANCES (6 channels affected) : out of range
Considerable: avg_biascorr=-0.4244, expected range: -0.5921 -0.4799
iasi
METOP-A IASI RADIANCES (419 channels affected) : out of range
Severe: obs_number=88438.0000, expected range: 123709.1143 126308.7429
METOP-B IASI RADIANCES (389 channels affected) : out of range
Severe: obs_number=15450.0000, expected range: 22595.5740 22889.7117
METOP-C IASI RADIANCES (389 channels affected) : out of range
Severe: obs_number=14900.0000, expected range: 22514.9697 22981.1731
METOP-C IASI RADIANCES CHANNEL 272 : out of range
Slight: stdev_fgdepar=0.2720, expected range: 0.2389 0.2591
METOP-C IASI RADIANCES CHANNEL 273 : out of range
Slight: stdev_fgdepar=0.2526, expected range: 0.2280 0.2493
METOP-C IASI RADIANCES CHANNEL 284 : out of range
Slight: stdev_fgdepar=0.2535, expected range: 0.2285 0.2483
METOP-C IASI RADIANCES CHANNEL 286 : out of range
Slight: stdev_fgdepar=0.2500, expected range: 0.2240 0.2432
METOP-C IASI RADIANCES CHANNEL 329 : out of range
Slight: stdev_fgdepar=0.2459, expected range: 0.2272 0.2439
METOP-C IASI RADIANCES CHANNEL 341 : out of range
Slight: stdev_fgdepar=0.2579, expected range: 0.2391 0.2554
METOP-C IASI RADIANCES CHANNEL 352 : out of range
Slight: stdev_fgdepar=0.2680, expected range: 0.2354 0.2645
cris
NPP CRIS RADIANCES CHANNEL 143 : out of range
Considerable: avg_biascorr=0.0341, expected range: 0.0362 0.0445
NOAA20 CRIS RADIANCES CHANNEL 132 : out of range
Considerable: avg_fgdepar=0.0012, expected range: 0.0084 0.0315
NOAA20 CRIS RADIANCES CHANNEL 1165 : out of range
Slight: stdev_fgdepar=1.3037, expected range: 1.0763 1.2745
NOAA20 CRIS RADIANCES CHANNEL 1174 : out of range
Slight: stdev_fgdepar=1.3422, expected range: 1.1468 1.3207
NOAA20 CRIS RADIANCES CHANNEL 1208 : out of range
Slight: stdev_fgdepar=1.3486, expected range: 1.1431 1.3152
NOAA20 CRIS RADIANCES CHANNEL 1221 : out of range
Slight: stdev_fgdepar=1.2200, expected range: 1.0348 1.1955
NOAA20 CRIS RADIANCES CHANNEL 1234 : out of range
Slight: stdev_fgdepar=1.2826, expected range: 1.0932 1.2620
NOAA20 CRIS RADIANCES CHANNEL 1237 : out of range
Slight: stdev_fgdepar=1.3580, expected range: 1.1533 1.3307
NOAA20 CRIS RADIANCES CHANNEL 1277 : out of range
Slight: stdev_fgdepar=1.3117, expected range: 1.1169 1.2764
gpsro
METOP-C GRAS SETTING (24 impact heights affected) : out of range
Severe: obs_number=780.0000, expected range: 1301.3415 1961.2299
METOP-A GRAS SETTING (24 impact heights affected) : out of range
Considerable: obs_number=877.0000, expected range: 1309.4871 2016.0843
METOP-B GRAS SETTING (24 impact heights affected) : out of range
Considerable: obs_number=936.0000, expected range: 1349.9726 2015.1703
METOP-A GRAS SETTING HEIGHT 7 : out of range
Slight: stdev_norm_fgdepar=0.8387, expected range: 0.8670 1.1208
Atmospheric Motion Vector
All METEOSAT-11 AMV IR3 ALL LAYERS Global : all data missing
Severe: obs_number=0, expected range: 489.48 3850.23
NOAA-19 AVHRR IR WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : out of range
Considerable: stdev_press=48.6475, expected range: 59.6491 93.7823
METOP-B AMV IR WIND VECTOR DIFF (M/S) (2 pressure layers affected) : out of range
Slight: stdev_press=66.1135, expected range: 68.4372 86.2207
METOP-C/AMV IR WIND VECTOR DIFF (M/S) PRESSURE LAYER 600-900 (HPA) : out of range
Slight: obs_number=809.0000, expected range: 395.9866 770.5848
Geostationary CSR
METEOSAT-8 SEVIRI RADIANCES CHANNEL 2 : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=50037.0000, expected range: 26879.3128 38085.4015
METEOSAT-8 SEVIRI RADIANCES CHANNEL 3 : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=27897.0000, expected range: 13024.6813 21150.4615
All METEOSAT-11 SEVIRI ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 30965.83 44089.74
Radiosondes
LAND TEMP TEMPERATURE (K) 30758 PRESSURE LAYER 900-1200 (HPA) : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8209, expected range: 0.2828 0.7500
All HIGH RESO SEA TEMP ALL LAYERS Tropics : all data missing
Severely_persistent: obs_number=0, expected range: 84.31 123.69
All HIGH RESO SEA TEMP ALL LAYERS Alantic Tropical are : all data missing
Severely_persistent: obs_number=0, expected range: 84.31 123.69
LAND TEMP TEMPERATURE (K) 60155 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.9034, expected range: 0.0000 4.1895
LAND TEMP TEMPERATURE (K) 44373 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_pge=0.8931, expected range: -0.2529 0.6639
LAND TEMP TEMPERATURE (K) 30230 PRESSURE LAYER 900-1200 (HPA) : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.8332, expected range: 0.0000 3.1255
Severe: avg_pge=0.8948, expected range: -0.7501 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 42220 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=19.3155, expected range: 0.1015 12.8896
Severe: avg_pge=0.8205, expected range: -0.5465 0.7500
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 56146 PRESSURE LAYER 0-300 : out of range
Severe: rms_fgdepar=28.1333, expected range: 0.0000 18.8947
Severe: avg_pge=0.8104, expected range: -0.2773 0.6303
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=74.0000, expected range: 114.0936 150.4778
HIGH RESO LAND TEMP Q (G/KG) (4 pressure layers affected) : out of range
Severe: obs_number=269.0000, expected range: 325.5856 339.6644
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=418.0000, expected range: 461.9766 498.8806
Severe: obs_number=331.0000, expected range: 258.6442 267.6415
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 67 : all data missing
Severe: obs_number=0, expected range: 52.82 169.51
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 95 : all data missing
Severe: obs_number=0, expected range: 90.83 156.17
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU4994 PRESSURE LAYER 300-600 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=25.9458, expected range: 0.0574 6.8744
Severe: avg_pge=0.8802, expected range: -0.1987 0.3683
WIGOS AMDAR WIND VECTOR DIFF (M/S) JMTL3SZA PRESSURE LAYER 900-1200 (H : out of range
Severe: rms_fgdepar=26.3371, expected range: 0.0000 9.1315
Severe: avg_pge=0.9183, expected range: -0.8346 0.7500
WIGOS AMDAR TEMPERATURE (K) EU4994 PRESSURE LAYER 300-600 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=11.0108, expected range: 0.0000 1.7643
Severe: avg_pge=0.9023, expected range: -0.0514 0.0637
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 02840 PRESSURE LAYER 300-600 : out of range
Severe: rms_fgdepar=17.8110, expected range: 0.0000 8.0288
Severe: avg_pge=0.8467, expected range: -0.3950 0.5566
synop
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24585 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8217, expected range: 0.5076 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71648 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9009, expected range: -1.5253 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 71766 : out of range
Severe: rms_fgdepar=30.7502, expected range: 0.0000 13.3151
MANUAL LAND SYNOP RH2M (%) 64700 : out of range
Severe: rms_fgdepar=54.1944, expected range: 0.0000 38.0387
Severe: avg_pge=0.9975, expected range: -0.0365 0.0574
MANUAL LAND SYNOP RH2M (%) 76040 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9142, expected range: -1.4491 0.7500
MANUAL LAND SYNOP RH2M (%) 42415 : out of range
Severe: rms_fgdepar=39.3004, expected range: 0.0000 21.8482
MANUAL LAND SYNOP RH2M (%) 87715 : out of range
Severe: rms_fgdepar=42.8175, expected range: 0.0000 18.7127
MANUAL LAND SYNOP RH2M (%) 87506 : out of range
Severe: rms_fgdepar=48.8002, expected range: 0.0000 23.3735
Severe: avg_pge=0.9992, expected range: -0.0084 0.0175
MANUAL LAND SYNOP RH2M (%) 64706 : out of range
Severe: avg_pge=0.9711, expected range: -0.4222 0.6244
MANUAL LAND SYNOP RH2M (%) 64708 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8238, expected range: -1.1662 0.7500
MANUAL LAND SYNOP RH2M (%) 42459 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9968, expected range: -1.5437 0.7500
MANUAL LAND SYNOP RH2M (%) : out of range
4 times in the last 10 days for at least one item
Severe: obs_number=59.0000, expected range: 69.2024 77.0198
MANUAL LAND SYNOP Z (M) 41508 : out of range
Severe: rms_fgdepar=182.1999, expected range: 316.5495 403.6797
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 41600 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=813.4159, expected range: 0.0000 588.8139
Severe: avg_pge=0.9204, expected range: -1.1896 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 60220 : out of range
Severe: rms_fgdepar=414.9078, expected range: 0.0000 60.6746
Severe: avg_pge=0.8452, expected range: -0.9558 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 44212 : out of range
Severe: rms_fgdepar=415.4363, expected range: 2.8926 95.0581
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 67225 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8979, expected range: -0.4721 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 41685 : out of range
Severe: rms_fgdepar=513.3981, expected range: 0.0000 216.0243
Severe: avg_pge=0.8255, expected range: -0.5158 0.6487
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42948 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8352, expected range: -0.8201 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 41678 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8332, expected range: -1.1652 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40629 : out of range
Severe: rms_fgdepar=552.7122, expected range: 0.0000 413.8409
Severe: avg_pge=0.9015, expected range: -1.3647 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 41739 : out of range
Severe: rms_fgdepar=393.6433, expected range: 0.0000 208.5329
Severe: avg_pge=0.8171, expected range: -0.4735 0.7500
BUFR LAND SYNOP RH2M (%) 06750 : out of range
Severe: avg_pge=0.9822, expected range: -0.1359 0.1899
BUFR LAND SYNOP RH2M (%) 41114 : out of range
Severe: avg_pge=0.8561, expected range: -0.0374 0.0506
BUFR LAND SYNOP RH2M (%) 06785 : out of range
Severe: avg_pge=0.8530, expected range: -0.0655 0.0874
BUFR LAND SYNOP RH2M (%) 10747 : out of range
Severe: rms_fgdepar=45.1385, expected range: 0.0000 24.5321
BUFR LAND SYNOP Z (M) 56374 : out of range
Severe: avg_pge=0.9990, expected range: -0.7961 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71883 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=355.1010, expected range: 0.0000 201.8902
Severe: avg_pge=0.8178, expected range: -0.3420 0.5395
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24918 : out of range
Severe: rms_fgdepar=352.1708, expected range: 0.0000 149.3334
ship
SHIP SURFACE PRESSURE (PA) : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9188, expected range: -0.9354 0.7500
Severely_persistent: avg_pge=0.9188, expected range: -1.0891 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) MERFR14 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8812, expected range: -0.4399 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) LF4X : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8554, expected range: -0.4199 0.7500
All AUTOMATIC SHIP East pacific Tropica : all data missing
Severe: obs_number=0, expected range: 48.11 60.09
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 5601519 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8345, expected range: -1.3915 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6202671 : out of range
Severe: rms_fgdepar=1007.9844, expected range: 0.0000 395.1821
Severe: avg_pge=0.8113, expected range: -0.7613 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4401573 : out of range
Severe: rms_fgdepar=993.7046, expected range: 0.0000 186.4697
Severe: avg_pge=0.9469, expected range: -0.4193 0.6127
DRIFTING BUOYS SURFACE PRESSURE (PA) 7401507 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8081, expected range: -0.7984 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2101617 : out of range
Severe: rms_fgdepar=325.3088, expected range: 0.0000 104.5152
metar
METAR SURFACE PRESSURE (PA) UBEE : out of range
Severe: rms_fgdepar=360.7644, expected range: 0.0000 92.1432
t2m
MANUAL LAND SYNOP 2M TEMPERATURE (K) 24076 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8102, expected range: 0.4998 1.0161
LAND TEMP 2M TEMPERATURE (K) 30372 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8687, expected range: 0.0870 1.3514
LAND TEMP 2M TEMPERATURE (K) 30758 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8061, expected range: 0.5527 0.9154
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 06785 : out of range
Severe: avg_est_pge=0.8168, expected range: 0.0664 0.9208
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 01017 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.9848, expected range: 0.0000 4.6878
MANUAL LAND SYNOP 2M TEMPERATURE (K) 60220 : out of range
Severe: rms_fgdepar=11.3359, expected range: 0.0000 3.2610
MANUAL LAND SYNOP 2M TEMPERATURE (K) 23503 : out of range
Severe: rms_fgdepar=10.7754, expected range: 0.0000 2.7600
MANUAL LAND SYNOP 2M TEMPERATURE (K) 94834 : out of range
Severe: rms_fgdepar=10.0712, expected range: 0.0000 5.6757
MANUAL LAND SYNOP 2M TEMPERATURE (K) 22127 : out of range
Severe: rms_fgdepar=11.8742, expected range: 0.0000 5.5944
METAR 2M TEMPERATURE (K) KTCL : out of range
Severe: rms_fgdepar=12.3056, expected range: 0.8592 4.1369
rh2m
MANUAL LAND SYNOP RH2M (%) 60520 : out of range
Severe: rms_fgdepar=33.0008, expected range: 0.0000 18.6237
MANUAL LAND SYNOP RH2M (%) 60481 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=34.7597, expected range: 0.0000 14.1912
AUTOMATIC LAND SYNOP RH2M (%) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=71.0000, expected range: 75.2356 91.5144