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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-08-01 00:00

cris
All NPP CRIS ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 14897.63 15980.17
airs
AQUA AIRS RADIANCES (23 channels affected) : out of range
Slight: obs_number=9120.0000, expected range: 9811.2667 11147.2333
atms
All NPP ATMS ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 11689.75 14179.45
ssmis
DMSP-17 SSMIS RADIANCES (5 channels affected) : out of range
3 times in the last 10 days for at least one item
Slight: stdev_norm_fgdepar=0.1175, expected range: 0.4890 0.4890
DMSP-18 SSMIS RADIANCES CHANNEL 9 : out of range
17 times in the last 10 days for at least one item
Slight: stdev_norm_fgdepar=0.0770, expected range: 0.5113 0.5113
DMSP-18 SSMIS RADIANCES CHANNEL 10 : out of range
18 times in the last 10 days for at least one item
Slight: stdev_norm_fgdepar=0.0471, expected range: 0.5874 0.5874
DMSP-18 SSMIS RADIANCES CHANNEL 11 : out of range
13 times in the last 10 days for at least one item
Slight: stdev_norm_fgdepar=0.0317, 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: 176.19 2500.50
All NPP VIIRS AMV IR ALL LAYERS Global : all data missing
Severely_persistent: obs_number=0, expected range: 308.50 1542.91
Radiosondes
LAND TEMP Q (G/KG) 35700 PRESSURE LAYER 900-1200 (HPA) : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=7.1630, expected range: -3.7296 12.4343
Severely_persistent: rms_fgdepar=7.5274, expected range: 0.0000 13.0875
LAND TEMP TEMPERATURE (K) 37055 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=8.9208, expected range: 0.0000 2.2179
Severe: avg_pge=0.8577, expected range: -0.3762 0.6100
LAND TEMP TEMPERATURE (K) 24507 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=7.8899, expected range: 0.0000 2.5545
LAND TEMP WIND VECTOR DIFF (M/S) 42701 PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=22.2374, expected range: 0.0000 21.9195
LAND TEMP WIND VECTOR DIFF (M/S) 17220 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=16.9306, expected range: 0.0000 10.6067
Severe: avg_pge=0.8964, expected range: -0.4343 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 89512 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.8813, expected range: -0.6287 0.7500
LAND TEMP Q (G/KG) 37055 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=3.5408, expected range: 0.0000 1.0968
LAND TEMP Q (G/KG) 76644 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_pge=0.9952, expected range: -0.0211 0.0349
LAND TEMP Q (G/KG) 36872 PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=8.2654, expected range: 0.0943 6.8563
Severe: rms_fgdepar=8.2654, expected range: 0.0306 7.0153
Severe: avg_pge=0.9247, expected range: -0.0821 0.1138
All LAND TEMP ALL LAYERS WMO BLOCK 62 : all data missing
Severe: obs_number=0, expected range: 29.65 132.15
HIGH RESO LAND TEMP Q (G/KG) 50774 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=2.5853, expected range: 0.0000 1.4531
HIGH RESO LAND TEMP Q (G/KG) 50953 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=2.5498, expected range: 0.2464 1.4828
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=163.0000, expected range: 88.0349 96.8540
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 42 : all data missing
Severe: obs_number=0, expected range: 21.37 271.19
All HIGH RESO SEA TEMP ALL LAYERS North West Pacific : all data missing
Severe: obs_number=0, expected range: 99.46 131.97
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
2 times in the last 10 days for at least one item
Considerable: rms_fgdepar=2.0953, expected range: 0.1432 1.3688
amdar
WIGOS AMDAR Q (G/KG) BSTXQVBA PRESSURE LAYER 900-1200 (HPA) : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-6.0413, expected range: -10.0093 -0.2999
Severely_persistent: rms_fgdepar=6.2316, expected range: 0.7941 9.9011
WIGOS AMDAR TEMPERATURE (K) ZLK1T1ZA PRESSURE LAYER 900-1200 (HPA) : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8570, expected range: -1.2749 0.7500
ADS-C WIND VECTOR DIFF (M/S) OZOW5DJA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=25.2332, expected range: -6.3600 13.8654
Severe: rms_fgdepar=25.2332, expected range: 0.0000 13.8894
ADS-C WIND VECTOR DIFF (M/S) 4HBK4UZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=18.0304, expected range: 0.4712 6.9076
WIGOS AMDAR Q (G/KG) PRESSURE LAYER 900-1200 (HPA) : out of range
Slight: rms_fgdepar=2.8477, expected range: 1.4937 2.6657
prof
All EUROPEAN WIND PROFILER ALL LAYERS South West Pacific : all data missing
Severe: obs_number=0, expected range: 188.76 844.96
All EUROPEAN WIND PROFILER ALL LAYERS West pacific Tropica : all data missing
Severe: obs_number=0, expected range: 188.76 844.96
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 42701 PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=23.7060, expected range: -5.0899 19.3880
Severe: rms_fgdepar=25.2010, expected range: 0.0000 18.8919
LAND PILOT WIND VECTOR DIFF (M/S) 98433 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=36.4080, expected range: -9.3001 17.4098
Severe: rms_fgdepar=36.4080, expected range: 0.0000 17.4098
Severe: avg_pge=0.9210, expected range: -0.8541 0.7500
LAND PILOT WIND VECTOR DIFF (M/S) 48453 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=21.2006, expected range: -4.5191 23.4704
Severe: rms_fgdepar=30.7261, expected range: 0.0000 28.0869
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 17952 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8198, expected range: -1.6114 0.7500
MANUAL LAND SYNOP RH2M (%) 62124 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9995, expected range: -1.8800 0.7500
BUFR LAND SYNOP RH2M (%) 60253 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9995, expected range: -1.7450 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 68403 : out of range
Severe: avg_fgdepar=53.0068, expected range: -27.9863 39.7437
Severe: rms_fgdepar=53.0068, expected range: 0.0000 20.1639
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 10007 : out of range
Severe: rms_fgdepar=344.4305, expected range: 0.0000 105.0118
Severe: avg_pge=0.9020, expected range: -0.8754 0.7500
MANUAL LAND SYNOP RH2M (%) 62011 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=52.9092, expected range: -32.5886 74.3605
Severe: rms_fgdepar=52.9092, expected range: 0.0000 74.3605
Severe: avg_pge=0.9993, expected range: -1.6927 0.7500
MANUAL LAND SYNOP RH2M (%) 67655 : out of range
Severe: rms_fgdepar=46.6043, expected range: 0.0000 13.9915
Severe: avg_pge=0.9411, expected range: 0.0015 0.0039
MANUAL LAND SYNOP RH2M (%) 38656 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=38.3227, expected range: 0.0000 15.8148
MANUAL LAND SYNOP RH2M (%) 60468 : out of range
Severe: rms_fgdepar=32.5945, expected range: 0.0000 13.7264
Severe: rms_fgdepar=31.4690, expected range: 0.0000 17.9636
MANUAL LAND SYNOP RH2M (%) 60559 : out of range
Severe: rms_fgdepar=31.8108, expected range: 0.0000 14.1442
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 63450 : out of range
Severe: rms_fgdepar=411.6078, expected range: 0.0000 188.7841
Severe: avg_pge=0.8105, expected range: 0.0000 0.0000
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 63331 : out of range
Severe: rms_fgdepar=334.0240, expected range: 0.0000 162.6367
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 63533 : out of range
Severe: rms_fgdepar=417.1320, expected range: -123.3203 183.3913
Severe: avg_pge=0.8365, expected range: -0.0719 0.0879
BUFR LAND SYNOP RH2M (%) 34401 : out of range
Severe: rms_fgdepar=32.6472, expected range: 0.0000 14.3781
BUFR LAND SYNOP RH2M (%) 72297 : out of range
Severe: rms_fgdepar=33.7735, expected range: 0.0000 19.8952
Severe: avg_pge=0.9935, expected range: -0.0087 0.0185
BUFR LAND SYNOP SURFACE PRESSURE (PA) 83825 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8038, expected range: -0.9797 0.7500
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V8585 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=692.3979, expected range: 523.1428 877.0154
Severely_persistent: rms_fgdepar=692.3979, expected range: 523.1428 877.0154
BUFR SHIP SYNOP SURFACE PRESSURE (PA) PJWM : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=807.8767, expected range: 184.2361 1141.8623
Severely_persistent: rms_fgdepar=807.8767, expected range: 184.2361 1141.8623
Severely_persistent: avg_pge=0.8766, expected range: 0.5669 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VRCF6 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8573, expected range: 0.2175 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) RCMSZ4L : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8714, expected range: -0.3241 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OXFU2 : out of range
Severe: avg_fgdepar=566.7304, expected range: 300.4101 629.4405
Severe: rms_fgdepar=567.4700, expected range: 301.9375 628.6667
Severe: avg_pge=0.8066, expected range: 0.6945 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3FLT5 : out of range
Severe: avg_pge=0.8041, expected range: -0.4639 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) D5VT5 : out of range
Severe: avg_fgdepar=770.6857, expected range: -1215.8809 1638.6088
Severe: rms_fgdepar=770.6857, expected range: 0.0000 1262.5017
Severe: avg_pge=0.8654, expected range: -1.0194 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 2EIF7 : out of range
Severe: avg_fgdepar=503.5366, expected range: 136.4109 925.9576
Severe: rms_fgdepar=503.5366, expected range: 136.4109 925.9576
BUFR SHIP SYNOP SURFACE PRESSURE (PA) H3BL : out of range
Severe: avg_fgdepar=-549.9888, expected range: -208.9285 488.8149
Severe: rms_fgdepar=832.3603, expected range: 0.0000 443.4643
BUFR SHIP SYNOP SURFACE PRESSURE (PA) KABL : out of range
Severe: rms_fgdepar=459.6854, expected range: 0.0000 90.8099
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) MLTH5 : out of range
Severe: rms_fgdepar=15.0281, expected range: -8.9936 13.2996
Severe: avg_pge=0.8857, expected range: -0.5054 0.6424
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) V7A4867 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8759, expected range: 0.4409 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 5401633 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8417, expected range: -1.0665 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1401817 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8516, expected range: -0.5328 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6301679 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8439, expected range: -1.4317 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
Severe: obs_number=4563.0000, expected range: 10353.4766 11082.8984
Severe: obs_number=1028.0000, expected range: 2350.4319 2489.0681
Severe: obs_number=151.0000, expected range: 522.3424 602.2458
Severe: obs_number=272.0000, expected range: 929.9723 1068.6159
Severe: obs_number=288.0000, expected range: 717.1071 787.1429
Severe: obs_number=657.0000, expected range: 1533.2542 1707.1208
Severe: obs_number=126.0000, expected range: 430.1564 489.3731
Considerable: obs_number=1725.0000, expected range: 2920.5341 3248.8777
DRIFTING BUOYS SURFACE PRESSURE (PA) 4402612 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8675, expected range: -1.1247 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5501667 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-656.7173, expected range: -444.4245 442.2915
Severe: rms_fgdepar=656.7839, expected range: -350.3119 500.0106
Severe: avg_pge=0.9154, expected range: -0.7035 0.7500
snow
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=-773.0371, expected range: -774.2557 -771.5550
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=773.0371, expected range: 771.5551 774.2557
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-16.3534, expected range: -12.4180 -4.2764
Severely_persistent: rms_fgdepar=16.3774, expected range: 4.3471 12.5893
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89004 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-16.9427, expected range: -25.6911 17.9640
Severely_persistent: rms_fgdepar=16.9427, expected range: -13.5985 24.1592
BUFR LAND SYNOP 2M TEMPERATURE (K) 89004 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-17.0027, expected range: -27.0705 17.0106
Severely_persistent: rms_fgdepar=17.0027, expected range: 0.0000 24.9779
BUFR LAND SYNOP 2M TEMPERATURE (K) 78896 : out of range
21 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-18.5982, expected range: -23.1989 -1.7313
Severely_persistent: rms_fgdepar=18.6312, expected range: 3.0546 22.9775
BUFR LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-16.3724, expected range: -12.4175 -4.3851
Severely_persistent: rms_fgdepar=16.3978, expected range: 4.4587 12.5834
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89578 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-18.2907, expected range: -7.9918 7.2809
Severe: rms_fgdepar=18.2908, expected range: 0.0000 7.0780
METAR 2M TEMPERATURE (K) SBSM : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=15.1740, expected range: -2.5182 2.3862
Severe: rms_fgdepar=16.7956, expected range: 0.0073 4.2141
METAR 2M TEMPERATURE (K) MMIO : out of range
Severe: rms_fgdepar=12.2518, expected range: 0.0000 13.6590
METAR 2M TEMPERATURE (K) FNCT : out of range
Severe: rms_fgdepar=10.2545, expected range: 0.0000 3.5426
LAND TEMP 2M TEMPERATURE (K) 71907 : out of range
Severe: avg_fgdepar=16.8008, expected range: -3.8265 5.2517
Severe: rms_fgdepar=16.8008, expected range: 0.0000 4.9726
BUFR LAND SYNOP 2M TEMPERATURE (K) 89578 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-18.3759, expected range: -8.0113 7.1867
Severe: rms_fgdepar=18.3760, expected range: 0.0000 7.1133
rh2m
MANUAL LAND SYNOP RH2M (%) 17050 : out of range
Severe: rms_fgdepar=31.0734, expected range: 0.0000 14.3311