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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2020-01-12 12:00

amsua
METOP-C AMSUA RADIANCES (5 channels affected) : out of range
Considerable: obs_number=1296.0000, expected range: 1803.6296 3426.2528
Atmospheric Motion Vector
METEOSAT-11 AMV IR3 WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Slight: avg_press=228.1301, expected range: 210.6485 226.1823
Radiosondes
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: obs_number=361.0000, expected range: 446.4643 471.5357
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=3.6983, expected range: 1.1381 2.4519
LAND TEMP TEMPERATURE (K) 43599 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=8.2830, expected range: 0.6481 3.0350
LAND TEMP WIND VECTOR DIFF (M/S) 33791 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.8296, expected range: 0.0000 10.5241
Severe: avg_pge=0.8291, expected range: -0.3464 0.7500
LAND TEMP Q (G/KG) 72403 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.3648, expected range: 0.0000 1.1945
LAND TEMP Q (G/KG) 97014 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.5862, expected range: 0.0000 1.6316
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 27713 PRESSURE LAYER 900-12 : out of range
Severe: rms_fgdepar=20.4875, expected range: 0.0000 17.6824
Severe: avg_pge=0.8936, expected range: -1.3420 0.7500
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 0-300 (HPA) : missing
Severe: obs_number=0.0000, expected range: 59.7204 67.2796
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 22 : all data missing
Severe: obs_number=0, expected range: 66.00 66.00
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 29 : all data missing
Severe: obs_number=0, expected range: 0.00 290.28
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 82 : all data missing
Severe: obs_number=0, expected range: 0.00 479.09
amdar
WIGOS AMDAR TEMPERATURE (K) TPMKJGRA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.5853, expected range: 0.0000 2.5588
Severe: avg_pge=0.8231, expected range: -0.4019 0.6170
WIGOS AMDAR WIND VECTOR DIFF (M/S) IDSUIEZA PRESSURE LAYER 900-1200 (H : out of range
Severe: rms_fgdepar=16.0632, expected range: 0.0000 7.1732
airep
AIREP WIND VECTOR DIFF (M/S) ATC400 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=25.6454, expected range: 0.0000 22.0687
Severe: avg_pge=0.8256, expected range: -1.2163 0.7500
synop
BUFR LAND SYNOP RH2M (%) 81739 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=1.0000, expected range: -1.9054 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 70333 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8175, expected range: -0.1840 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24585 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8859, expected range: 0.0120 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 78896 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8391, expected range: 0.4258 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71648 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8940, expected range: -1.5956 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 89575 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9951, expected range: -1.3792 0.7500
MANUAL LAND SYNOP RH2M (%) 43177 : out of range
Severe: avg_pge=0.9791, expected range: -0.0265 0.0474
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42744 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=324.3532, expected range: 0.0000 156.0695
Severe: avg_pge=0.8093, expected range: -1.1320 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40664 : out of range
Severe: rms_fgdepar=993.5521, expected range: 0.0000 93.6073
Severe: avg_pge=0.9432, expected range: -0.1287 0.1471
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42935 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8041, expected range: -0.4257 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 37985 : out of range
Severe: rms_fgdepar=589.6720, expected range: 0.0000 138.3397
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42367 : out of range
Severe: rms_fgdepar=329.1971, expected range: 0.0000 273.5700
Severe: avg_pge=0.8190, expected range: -1.0665 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42177 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=650.4371, expected range: 0.0000 461.9807
Severe: avg_pge=0.9117, expected range: -1.3646 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 41678 : out of range
Severe: rms_fgdepar=389.6026, expected range: 0.0000 214.3402
Severe: avg_pge=0.8035, expected range: -0.6964 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
Severe: obs_number=264.0000, expected range: 308.2418 326.7582
BUFR LAND SYNOP RH2M (%) 72440 : out of range
Severe: rms_fgdepar=42.1335, expected range: 0.0000 23.0090
BUFR LAND SYNOP RH2M (%) 72551 : out of range
Severe: rms_fgdepar=31.1939, expected range: 0.0000 17.7960
BUFR LAND SYNOP SURFACE PRESSURE (PA) 81002 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8238, expected range: -0.7463 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48952 : out of range
Severe: rms_fgdepar=564.2836, expected range: 0.0000 131.0372
Severe: avg_pge=0.9001, expected range: -0.3882 0.4472
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71484 : out of range
Severe: rms_fgdepar=343.0603, expected range: 0.0000 177.5945
BUFR LAND SYNOP SURFACE PRESSURE (PA) 04018 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=584.7200, expected range: 0.0000 119.3698
ship
SHIP SURFACE PRESSURE (PA) : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9060, expected range: -0.8582 0.7500
Severely_persistent: avg_pge=0.9060, expected range: -0.8720 0.7500
SHIP SURFACE PRESSURE (PA) A8OR8 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9060, expected range: -0.7396 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) EUCDE08 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8447, expected range: 0.4905 0.7500
SHIP SURFACE PRESSURE (PA) J8QY1 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8022, expected range: -0.9380 0.7500
All SHIP North West Pacific : all data missing
Severe: obs_number=0, expected range: 0.00 485.16
All ABBREVIATED SHIP North West Pacific : all data missing
Severe: obs_number=0, expected range: 37.01 149.33
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 4602502 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8891, expected range: -0.8362 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4401562 : out of range
Severe: rms_fgdepar=384.6861, expected range: 0.0000 177.1259
DRIFTING BUOYS SURFACE PRESSURE (PA) 6301682 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8793, expected range: -1.1834 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4401563 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=327.5681, expected range: 0.0000 185.9637
DRIFTING BUOYS SURFACE PRESSURE (PA) 7401507 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9097, expected range: -0.7959 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5601519 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=485.5836, expected range: 0.0000 184.8581
Severe: avg_pge=0.8546, expected range: -0.1891 0.2412
MOORED BUOYS SURFACE PRESSURE (PA) : out of range
3 times in the last 10 days for at least one item
Considerable: obs_number=78.0000, expected range: 86.5831 99.4169
metar
METAR SURFACE PRESSURE (PA) BIKF : out of range
Severe: rms_fgdepar=451.1747, expected range: 0.0000 185.8864
METAR SURFACE PRESSURE (PA) TNCM : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=319.4167, expected range: 3.9985 89.5639
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71001 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8640, expected range: -0.3725 1.4319
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71195 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8641, expected range: -0.3594 1.4377
MANUAL LAND SYNOP 2M TEMPERATURE (K) 44232 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8256, expected range: 0.6025 0.9249
LAND TEMP 2M TEMPERATURE (K) 56137 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8798, expected range: 0.4619 1.0776
LAND TEMP 2M TEMPERATURE (K) 56029 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8834, expected range: 0.6037 1.0572
BUFR LAND SYNOP 2M TEMPERATURE (K) 51542 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8705, expected range: 0.7795 0.9300
MANUAL LAND SYNOP 2M TEMPERATURE (K) 23635 : out of range
Severe: rms_fgdepar=11.5930, expected range: 0.0000 3.7119
MANUAL LAND SYNOP 2M TEMPERATURE (K) 44265 : out of range
3 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8249, expected range: 0.2947 1.0888
MANUAL LAND SYNOP 2M TEMPERATURE (K) 24967 : out of range
Severe: avg_est_pge=0.8072, expected range: -0.3569 1.1394
METAR 2M TEMPERATURE (K) CYDB : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8171, expected range: -0.5089 1.2576
METAR 2M TEMPERATURE (K) PHLI : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=11.2376, expected range: 0.0000 5.7561
MANUAL LAND SYNOP 2M TEMPERATURE (K) : out of range
Considerable: obs_number=365.0000, expected range: 392.5125 447.5986