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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-08-11 12:00

iasi
METOP-A/IASI RADIANCES CHANNEL 2213 : out of range
Considerable: obs_number=9729.0000, expected range: 1637.9351 6624.0881
METOP-A/IASI RADIANCES (17 channels affected) : out of range
Considerable: obs_number=3998.0000, expected range: 0.0000 3093.7012
cris
NPP/CRIS RADIANCES (163 channels affected) : out of range
Severe: obs_number=14938.0000, expected range: 5941.5686 8397.4073
NPP/CRIS RADIANCES (21 channels affected) : out of range
Severe: avg_fgdepar=0.2091, expected range: -0.0527 0.0714
NPP/CRIS RADIANCES (27 channels affected) : out of range
Severe: stdev_fgdepar=3.3722, expected range: 0.1915 0.2784
ssmis
DMSP-17/SSMIS RADIANCES (17 channels affected) : out of range
Considerable: obs_number=9957.0000, expected range: 11948.9102 14701.2520
Radiosondes
LAND TEMP TEMPERATURE (K) 30372 PRESSURE LAYER 900-1200 (HPA) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8010, expected range: -1.0635 0.7500
LAND TEMP TEMPERATURE (K) 29634 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=9.4953, expected range: 0.0000 3.5714
Severe: avg_pge=0.9022, expected range: -0.1543 0.2358
LAND TEMP TEMPERATURE (K) 37259 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=7.2448, expected range: 0.0000 3.1919
LAND TEMP WIND VECTOR DIFF (M/S) 23802 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=17.4503, expected range: 0.0000 11.4022
Severe: avg_pge=0.8759, expected range: -1.0125 0.7500
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
Severe: obs_number=370.0000, expected range: 451.0480 475.4226
HIGH RESO LAND TEMP Q (G/KG) 72451 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.2162, expected range: 0.0000 2.7795
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=263.0000, expected range: 320.2585 335.8592
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) YIZ123RA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=23.8228, expected range: 0.0000 13.9544
Severe: avg_pge=0.8689, expected range: -0.3387 0.5473
WIGOS AMDAR Q (G/KG) XWGY0OZA PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8611, expected range: -1.1874 0.7500
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 86260 : out of range
Severe: rms_fgdepar=572.2328, expected range: 0.0000 464.8071
Severe: avg_pge=0.8754, expected range: -0.8730 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 86221 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8950, expected range: -0.8412 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 76113 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8157, expected range: -0.6722 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42343 : out of range
Severe: rms_fgdepar=744.2856, expected range: 0.0000 322.8938
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42473 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=495.0331, expected range: 0.0000 302.0031
Severe: avg_pge=0.8786, expected range: -0.7379 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42834 : out of range
Severe: rms_fgdepar=406.6953, expected range: 0.0000 318.1210
Severe: avg_pge=0.8631, expected range: -1.0129 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 54725 : out of range
Severe: rms_fgdepar=329.6325, expected range: 0.0000 161.4536
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 62007 : out of range
Severe: avg_pge=0.8619, expected range: -1.0378 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83937 : out of range
Severe: rms_fgdepar=1013.3431, expected range: 0.0000 194.4839
Severe: avg_pge=0.9425, expected range: -0.6349 0.7133
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43058 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=769.6912, expected range: 0.0000 351.7263
Severe: avg_pge=0.9212, expected range: -1.2031 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42849 : out of range
Severe: rms_fgdepar=432.5769, expected range: 0.0000 382.8549
Severe: avg_pge=0.8533, expected range: -0.9052 0.7500
MANUAL LAND SYNOP RH2M (%) 43331 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9211, expected range: -1.1526 0.7500
MANUAL LAND SYNOP RH2M (%) 44336 : out of range
Severe: rms_fgdepar=25.2312, expected range: 0.0000 14.3755
MANUAL LAND SYNOP RH2M (%) 41739 : out of range
Severe: avg_pge=0.9749, expected range: -0.0570 0.0758
BUFR LAND SYNOP RH2M (%) 72688 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=32.1942, expected range: 0.0000 9.9669
BUFR LAND SYNOP RH2M (%) 81788 : out of range
Severe: avg_pge=0.8408, expected range: -0.6672 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
Considerable: obs_number=175.0000, expected range: 191.1447 238.3847
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) LF4J : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8355, expected range: 0.1406 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) ATVK : out of range
Severe: rms_fgdepar=313.2568, expected range: 0.0000 142.8271
SHIP SURFACE PRESSURE (PA) 9HA4800 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8114, expected range: -0.9411 0.7500
SHIP SURFACE PRESSURE (PA) 9HA4652 : out of range
Severe: avg_pge=0.9294, expected range: -1.0038 0.7500
SHIP SURFACE PRESSURE (PA) OXES2 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9135, expected range: -1.3848 0.7500
SHIP SURFACE PRESSURE (PA) S6AN5 : out of range
Severe: avg_pge=0.8015, expected range: -1.2948 0.7500
SHIP SURFACE PRESSURE (PA) VRBR8 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=588.7604, expected range: 0.0000 257.6094
Severe: avg_pge=0.8944, expected range: -0.8491 0.7500
SHIP SURFACE PRESSURE (PA) UBNY : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8087, expected range: -0.8334 0.7500
SHIP SURFACE PRESSURE (PA) BQHZ : out of range
Severe: rms_fgdepar=1136.5073, expected range: 0.0000 237.5291
Severe: avg_pge=0.9397, expected range: -0.6205 0.7500
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 1500001 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9155, expected range: 0.4803 0.7500
MOORED BUOYS WIND VECTOR DIFF (M/S) 5300056 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9076, expected range: 0.7356 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6400528 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=318.4882, expected range: -160.3110 228.9129
Severely_persistent: avg_pge=0.8236, expected range: -0.9330 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2201558 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8109, expected range: -1.4914 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1601579 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8192, expected range: 0.0239 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2201561 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8327, expected range: -1.2860 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5401582 : out of range
Severe: avg_pge=0.8102, expected range: -1.1011 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5501596 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=310.2217, expected range: 0.0000 150.8353
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
Severe: avg_biascorr=7.1889, expected range: 0.0000 0.0000
metar
AUTOMATIC METAR SURFACE PRESSURE (PA) : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-368.8889, expected range: 0.0000 0.0000
METAR SURFACE PRESSURE (PA) SBAF : out of range
Severe: rms_fgdepar=306.7076, expected range: 0.0000 140.6839
METAR SURFACE PRESSURE (PA) SBSM : out of range
Severe: rms_fgdepar=305.0358, expected range: 0.0000 163.1890
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89504 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8211, expected range: 0.7429 0.8932
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8234, expected range: 0.7022 0.9109
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89504 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8205, expected range: 0.7507 0.8970
BUFR LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8248, expected range: 0.7122 0.9063
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89734 : out of range
4 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8332, expected range: 0.5037 0.9941
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89625 : out of range
2 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8303, expected range: -0.3987 1.2841
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71918 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=9.3589, expected range: 0.2184 3.7615
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89828 : out of range
Severe: avg_est_pge=0.8171, expected range: -0.2711 1.1450
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89578 : out of range
4 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8423, expected range: 0.1405 1.1942
MANUAL LAND SYNOP 2M TEMPERATURE (K) 61257 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=8.7494, expected range: 0.0135 3.2899
METAR 2M TEMPERATURE (K) OIGK : out of range
3 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8284, expected range: 0.0606 1.1280
METAR 2M TEMPERATURE (K) OPTU : out of range
Severe: rms_fgdepar=8.7049, expected range: 0.8226 3.4778
LAND TEMP 2M TEMPERATURE (K) 56137 : out of range
4 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8404, expected range: -0.0636 1.2434
BUFR LAND SYNOP 2M TEMPERATURE (K) 08480 : out of range
Severe: rms_fgdepar=9.5147, expected range: 0.0000 5.4326
BUFR LAND SYNOP 2M TEMPERATURE (K) 08026 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=18.1787, expected range: 0.0966 5.1247
Severe: avg_est_pge=0.8407, expected range: -0.1400 0.4562
BUFR LAND SYNOP 2M TEMPERATURE (K) 89507 : out of range
Severe: avg_est_pge=0.8821, expected range: 0.2713 0.9671
BUFR LAND SYNOP 2M TEMPERATURE (K) 89828 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8178, expected range: -0.2748 1.1381
BUFR LAND SYNOP 2M TEMPERATURE (K) 89578 : out of range
4 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8409, expected range: 0.1465 1.1927
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 95296 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=31.0886, expected range: 0.0000 17.7060
MANUAL LAND SYNOP RH2M (%) 72688 : out of range
Severe: rms_fgdepar=33.8746, expected range: 0.0000 13.8521
LAND TEMP RH2M (%) 29862 : out of range
Severe: rms_fgdepar=30.8359, expected range: 0.0000 15.8023