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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-08-05 00:00

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-17 SSMIS RADIANCES CHANNEL 10 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: stdev_norm_fgdepar=0.7076, expected range: 0.0296 0.0848
DMSP-18 SSMIS RADIANCES CHANNEL 11 : out of range
21 times in the last 10 days for at least one item
Severely_persistent: avg_norm_fgdepar=-0.0998, expected range: -0.0161 0.0079
Slight: stdev_norm_fgdepar=0.7083, expected range: 0.6393 0.6393
DMSP-18 SSMIS RADIANCES CHANNEL 10 : out of range
27 times in the last 10 days for at least one item
Severely_persistent: stdev_norm_fgdepar=0.3657, expected range: -0.0320 0.0947
Slight: stdev_norm_fgdepar=0.6474, 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=0.5983, expected range: 0.4890 0.4890
DMSP-18 SSMIS RADIANCES CHANNEL 9 : out of range
25 times in the last 10 days for at least one item
Slight: stdev_norm_fgdepar=0.5936, expected range: 0.5113 0.5113
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) 35700 PRESSURE LAYER 900-1200 (HPA) : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=6.0689, expected range: -2.4428 12.0274
Severely_persistent: rms_fgdepar=6.2496, expected range: 0.0000 12.3996
LAND TEMP WIND VECTOR DIFF (M/S) 42701 PRESSURE LAYER 0-300 (HPA) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=26.8240, expected range: -10.9120 36.1214
Severely_persistent: rms_fgdepar=27.0146, expected range: 0.0000 39.1775
Severely_persistent: avg_pge=0.8446, expected range: -0.5364 0.7500
All HIGH RESO SEA TEMP ALL LAYERS North West Pacific : all data missing
Severely_persistent: obs_number=0, expected range: 100.05 129.55
LAND TEMP Q (G/KG) 96035 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=2.0643, expected range: 0.5935 1.4276
LAND TEMP TEMPERATURE (K) 21946 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=24.0486, expected range: -2.4630 0.6421
Severe: rms_fgdepar=24.0486, expected range: 0.0000 4.1108
Severe: avg_pge=0.8898, expected range: -0.2464 0.3754
HIGH RESO LAND TEMP Q (G/KG) 43371 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=6.4421, expected range: 0.0000 2.0500
HIGH RESO LAND TEMP Q (G/KG) 08383 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=5.7118, expected range: 0.0000 2.9400
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.1913, expected range: 0.0000 1.2147
Severe: rms_fgdepar=3.4541, expected range: 0.0000 1.4502
HIGH RESO LAND TEMP TEMPERATURE (K) 43371 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=6.8836, expected range: 0.0000 1.5069
All HIGH RESO LAND TEMP ALL LAYERS South pole : all data missing
Severe: obs_number=0, expected range: 73.21 360.52
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
Considerable: rms_fgdepar=2.7909, expected range: 0.0000 1.7507
amdar
WIGOS AMDAR Q (G/KG) BSTXQVBA PRESSURE LAYER 900-1200 (HPA) : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-6.9230, expected range: -9.9158 -0.3155
Severely_persistent: rms_fgdepar=6.9549, expected range: 0.9982 10.2125
AMDAR WIND VECTOR DIFF (M/S) AFR228 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=18.6977, expected range: 0.0000 9.2304
WIGOS AMDAR Q (G/KG) DVPUOFZA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=-7.1538, expected range: -6.4172 1.0873
Severe: rms_fgdepar=7.1538, expected range: 0.0000 6.8184
MODE-S WIND VECTOR DIFF (M/S) M3E798B PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=18.5315, expected range: 0.0000 4.4643
airep
AIREP WIND VECTOR DIFF (M/S) SIA401 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.5414, expected range: 1.0861 4.8437
AIREP WIND VECTOR DIFF (M/S) THY12E PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.3171, expected range: 0.0000 6.2330
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 01405 PRESSURE LAYER 300-600 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=38.9677, expected range: -5.4354 14.1288
Severe: rms_fgdepar=38.9677, expected range: 0.0000 14.6750
Severe: avg_pge=0.9242, expected range: -0.3202 0.6432
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 94926 PRESSURE LAYER 300-600 : out of range
Severe: avg_fgdepar=24.0435, expected range: -3.3400 17.5682
Severe: rms_fgdepar=24.7060, expected range: 0.0000 19.4910
Severe: avg_pge=0.8801, expected range: -0.4768 0.7500
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 89664 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=16.4643, expected range: 0.0000 11.0069
Severe: avg_pge=0.9019, expected range: -0.8940 0.7500
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 63533 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8570, expected range: -2.0034 0.7500
BUFR LAND SYNOP RH2M (%) 60253 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8166, expected range: -1.9645 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 60008 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8095, expected range: 0.4572 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 18156 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9999, expected range: -0.9635 0.7500
MANUAL LAND SYNOP RH2M (%) 40811 : out of range
Severe: rms_fgdepar=34.1304, expected range: 0.0000 25.2369
Severe: avg_pge=0.9706, expected range: -0.0889 0.1091
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 91629 : out of range
Severe: avg_pge=0.8436, expected range: -0.1665 0.7500
BUFR LAND SYNOP Z (M) 43356 : out of range
Severe: rms_fgdepar=90.9243, expected range: 0.0000 40.6356
BUFR LAND SYNOP RH2M (%) 72363 : out of range
Severe: rms_fgdepar=38.1589, expected range: 0.0000 16.7171
BUFR LAND SYNOP SURFACE PRESSURE (PA) 42662 : out of range
Severe: rms_fgdepar=363.4678, expected range: 0.0000 135.8981
Severe: avg_pge=0.8135, expected range: -0.6620 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71588 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-523.4035, expected range: -474.5045 -350.2614
Severe: rms_fgdepar=550.2765, expected range: 435.4366 530.6703
Severe: avg_pge=0.8472, expected range: 0.5406 0.7500
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3E3594 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8096, expected range: -0.2304 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) D5VT5 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=937.6057, expected range: -1051.8737 2219.0513
Severely_persistent: rms_fgdepar=937.6057, expected range: 0.0000 2041.1124
Severely_persistent: avg_pge=0.8934, expected range: -0.7240 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) ZCBU5 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=548.0143, expected range: -839.8771 1693.1566
Severely_persistent: rms_fgdepar=548.0143, expected range: 0.0000 1693.1566
Severely_persistent: avg_pge=0.8083, expected range: -0.6148 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6WK7 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-596.4456, expected range: -1590.9351 1546.7519
Severely_persistent: rms_fgdepar=596.4456, expected range: 0.0000 1145.1889
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9VKU8 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=986.0106, expected range: 613.6423 1289.3709
Severely_persistent: rms_fgdepar=986.0106, expected range: 614.6818 1289.2531
BUFR SHIP SYNOP SURFACE PRESSURE (PA) PJWM : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=791.2131, expected range: 169.1744 1116.2258
Severely_persistent: rms_fgdepar=791.2131, expected range: 169.1744 1116.2258
Severely_persistent: avg_pge=0.8625, expected range: 0.5535 0.7500
SHIP SURFACE PRESSURE (PA) WTEK : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8269, expected range: -1.2246 0.7500
ABBREVIATED SHIP SURFACE PRESSURE (PA) WTEK : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8482, expected range: -0.7881 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6XB4 : out of range
Severe: rms_fgdepar=376.7106, expected range: 0.0000 181.7026
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6ZS6 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=578.4197, expected range: -49.0986 596.1108
Severe: rms_fgdepar=578.4197, expected range: 0.0000 596.1108
Severe: avg_pge=0.8308, expected range: -0.4757 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WZE4539 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=755.2054, expected range: -130.0908 339.9182
Severe: rms_fgdepar=991.0770, expected range: 0.0000 398.2093
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HRJ9 : out of range
Severe: rms_fgdepar=389.5219, expected range: 0.0000 146.6997
buoy
DRIBU WIND VECTOR DIFF (M/S) 23454 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9020, expected range: -0.6139 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4701747 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=557.9222, expected range: -831.0845 1510.2744
Severely_persistent: rms_fgdepar=566.9459, expected range: 0.0000 1369.8076
Severely_persistent: avg_pge=0.8901, expected range: -0.7841 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 3301578 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=907.4343, expected range: -1018.5279 909.7607
Severely_persistent: rms_fgdepar=910.3046, expected range: -831.8257 1058.6140
Severely_persistent: avg_pge=0.9251, expected range: -1.5996 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5601692 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8011, expected range: -1.0685 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2300593 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8148, expected range: 0.6234 0.7500
metar
METAR SURFACE PRESSURE (PA) EGYE : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=531.1450, expected range: 0.0000 118.9484
snow
MANUAL LAND SYNOP SNOW (CM) 37552 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=64.0000, expected range: 6.4982 88.0351
Severely_persistent: rms_fgdepar=64.0000, expected range: 7.4266 88.3397
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: -773.7345 -772.0256
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: 772.0258 773.7344
t2m
METAR 2M TEMPERATURE (K) UGMS : out of range
20 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=12.1385, expected range: 9.0326 15.3259
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71983 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.1619, expected range: 0.0000 5.1941
MANUAL LAND SYNOP 2M TEMPERATURE (K) 36953 : out of range
Severe: rms_fgdepar=10.0089, expected range: 1.1185 5.7366
MANUAL LAND SYNOP 2M TEMPERATURE (K) 76658 : out of range
Severe: rms_fgdepar=12.4480, expected range: 0.0000 5.8619
METAR 2M TEMPERATURE (K) KLAF : out of range
Severe: rms_fgdepar=11.9430, expected range: 0.0000 4.5814
METAR 2M TEMPERATURE (K) KMUI : out of range
Severe: rms_fgdepar=10.8043, expected range: 0.1075 5.4642
LAND TEMP 2M TEMPERATURE (K) 62414 : out of range
Severe: avg_fgdepar=-12.3665, expected range: -2.2166 1.6229
Severe: rms_fgdepar=12.3665, expected range: 0.0000 1.8267
BUFR LAND SYNOP 2M TEMPERATURE (K) 30393 : out of range
Severe: rms_fgdepar=13.0351, expected range: 0.0000 3.9086
BUFR LAND SYNOP 2M TEMPERATURE (K) 76658 : out of range
Severe: rms_fgdepar=10.0162, expected range: 0.0000 4.9547