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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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

iasi
All METOP-A/IASI RADIANCES ALL CHANNELS Missing
METOP-B/IASI RADIANCES (31 channels affected) : out of range
Severe: stdev_fgdepar=0.4812, expected range: 0.2752 0.4101
METOP-B/IASI RADIANCES CHANNEL 3093 : out of range
2 times in the last 10 days for at least one item
Considerable: avg_biascorr=0.4062, expected range: 0.0493 0.3210
METOP-B/IASI RADIANCES CHANNEL 3322 : out of range
1 times in the last 10 days for at least one item
Considerable: avg_biascorr=0.2717, expected range: -0.1035 0.1941
cris
NPP/CRIS RADIANCES CHANNEL 195 : out of range
1 times in the last 10 days for at least one item
Severe: avg_biascorr=-0.1884, expected range: -0.1785 -0.1636
mwhs2
ALLSKY FY-3C/MWHS2 RADIANCES CHANNEL 1 : out of range
Slight: obs_number=20662.0000, expected range: 22246.0136 36206.4864
ALLSKY FY-3C/MWHS2 RADIANCES CHANNEL 14 : out of range
Slight: obs_number=20607.0000, expected range: 22101.2771 35979.3896
ALLSKY FY-3C/MWHS2 RADIANCES CHANNEL 15 : out of range
Slight: obs_number=20548.0000, expected range: 22053.5285 35895.1382
Atmospheric Motion Vector
GOES-16/AMV VIS1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HPA) : out of range
Considerable: obs_number=14972.0000, expected range: 17002.1632 23038.2579
GOES-16/AMV CLOUDY WV3 WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 ( : out of range
1 times in the last 10 days for at least one item
Slight: avg_fgdepar=4.2180, expected range: 2.1309 3.9211
resat
AURA/OMI OZONE, TOP PRESSURE LAYER 0-1 (HPA) : out of range
3 times in the last 10 days for at least one item
Considerable: obs_number=12798.0000, expected range: 16842.2872 24546.2917
Radiosondes
LAND TEMP TEMPERATURE (K) 30372 PRESSURE LAYER 900-1200 (HPA) : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9113, expected range: -1.0381 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 21432 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=16.0251, expected range: 0.0000 6.8849
LAND TEMP WIND VECTOR DIFF (M/S) 32150 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=17.6692, expected range: 0.0000 7.4410
Severe: avg_pge=0.8826, expected range: -0.6032 0.7500
LAND TEMP TEMPERATURE (K) 34172 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.1349, expected range: 0.0000 5.0968
Severe: avg_pge=0.8885, expected range: -0.4425 0.7500
LAND TEMP TEMPERATURE (K) 36003 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=9.2554, expected range: 0.0000 5.5228
Severe: avg_pge=0.9096, expected range: -1.0817 0.7500
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
Severe: obs_number=96.0000, expected range: 156.0499 209.7001
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 68842 PRESSURE LAYER 900-12 : out of range
Severe: rms_fgdepar=15.4423, expected range: 0.0000 8.1844
HIGH RESO SEA TEMP Q (G/KG) PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Considerable: rms_fgdepar=0.0222, expected range: 0.0000 0.0145
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) SCVIR3JA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.6987, expected range: 0.0000 7.6421
WIGOS AMDAR WIND VECTOR DIFF (M/S) TGEYR3JA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.9149, expected range: 0.0000 8.6912
WIGOS AMDAR WIND VECTOR DIFF (M/S) SGEUIJZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.9938, expected range: 0.0000 7.4774
WIGOS AMDAR WIND VECTOR DIFF (M/S) M0FKJHBA PRESSURE LAYER 900-1200 (H : out of range
Severe: rms_fgdepar=16.4646, expected range: 0.0000 7.7434
WIGOS AMDAR WIND VECTOR DIFF (M/S) F5V0GBZA PRESSURE LAYER 900-1200 (H : out of range
Severe: rms_fgdepar=15.9261, expected range: 0.0000 7.6304
WIGOS AMDAR WIND VECTOR DIFF (M/S) Z4B0JFZA PRESSURE LAYER 900-1200 (H : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=18.2763, expected range: 0.0000 7.5109
WIGOS AMDAR Q (G/KG) 3OXWUWJA PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_pge=0.8323, expected range: -0.3588 0.5842
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 96607 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_pge=0.8211, expected range: -0.9186 0.7500
synop
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71750 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=282.5277, expected range: 0.0000 237.6118
Severely_persistent: avg_pge=0.8166, expected range: -1.3056 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 72672 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8599, expected range: -1.3858 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 60018 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=352.8866, expected range: 104.3091 305.9802
Severely_persistent: avg_pge=0.8840, expected range: 0.6538 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 68443 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=25.6521, expected range: 0.0000 7.0557
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 68933 : out of range
Severe: rms_fgdepar=384.9931, expected range: 0.0000 148.5010
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 68935 : out of range
Severe: rms_fgdepar=364.0259, expected range: 0.0000 130.8156
MANUAL LAND SYNOP RH2M (%) 76040 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8473, expected range: -0.7277 0.7500
MANUAL LAND SYNOP RH2M (%) 68442 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=27.9750, expected range: 0.0000 9.8170
MANUAL LAND SYNOP RH2M (%) 83182 : out of range
Severe: avg_pge=0.8514, expected range: -0.7004 0.7500
MANUAL LAND SYNOP RH2M (%) 67665 : out of range
Severe: rms_fgdepar=30.9364, expected range: 0.0000 13.7444
MANUAL LAND SYNOP RH2M (%) 43136 : out of range
Severe: rms_fgdepar=35.9878, expected range: 0.0000 30.9128
Severe: avg_pge=0.9571, expected range: -0.0136 0.0224
MANUAL LAND SYNOP RH2M (%) 42266 : out of range
Severe: avg_pge=0.9030, expected range: -0.0131 0.0227
MANUAL LAND SYNOP RH2M (%) 68438 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=24.9846, expected range: 0.0000 11.0951
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 62011 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=733.5718, expected range: 0.0000 323.5191
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 41992 : out of range
Severe: rms_fgdepar=410.4032, expected range: 0.0000 193.1501
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 89053 : out of range
Severe: rms_fgdepar=607.1740, expected range: 0.0000 223.0937
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83925 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=874.9937, expected range: 0.0000 315.0972
Severe: avg_pge=0.9306, expected range: -1.2542 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 41768 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=514.4983, expected range: 0.0000 255.1505
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83998 : out of range
Severe: rms_fgdepar=431.2847, expected range: 0.0000 354.5773
Severe: avg_pge=0.8541, expected range: -1.1464 0.7500
MANUAL LAND SYNOP Z (M) 56172 : out of range
Severe: avg_pge=0.9543, expected range: -0.2533 0.2972
BUFR LAND SYNOP RH2M (%) 72662 : out of range
Severe: avg_pge=0.9121, expected range: -0.0315 0.0470
BUFR LAND SYNOP RH2M (%) 72324 : out of range
Severe: rms_fgdepar=25.8116, expected range: 0.0000 13.3664
BUFR LAND SYNOP RH2M (%) 95774 : out of range
Severe: rms_fgdepar=15.9832, expected range: 0.0000 36.7560
BUFR LAND SYNOP SURFACE PRESSURE (PA) 72570 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8105, expected range: -0.6387 0.7500
ship
SHIP WIND VECTOR DIFF (M/S) VRKQ5 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8049, expected range: -0.3415 0.7500
ABBREVIATED SHIP SURFACE PRESSURE (PA) WTDF : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9126, expected range: -1.1908 0.7500
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=0.8619, expected range: 0.3121 0.7500
SHIP WIND VECTOR DIFF (M/S) VRJT8 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=15.9503, expected range: 0.0000 13.7182
Severe: avg_pge=0.9012, expected range: -0.2164 0.7500
SHIP SURFACE PRESSURE (PA) WL3972 : out of range
Severe: avg_pge=0.8142, expected range: -0.8937 0.7500
SHIP SURFACE PRESSURE (PA) 9V8503 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8217, expected range: -0.7556 0.7500
SHIP SURFACE PRESSURE (PA) C6DD6 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=631.5355, expected range: 0.0000 533.5923
Severe: avg_pge=0.9120, expected range: -0.3947 0.7500
SHIP SURFACE PRESSURE (PA) PBIG : out of range
Severe: rms_fgdepar=487.9624, expected range: 0.0000 242.2375
Severe: avg_pge=0.8677, expected range: -0.9385 0.7500
buoy
MOORED BUOYS SURFACE PRESSURE (PA) : out of range
9 times in the last 10 days for at least one item
Severely_persistent: obs_number=108.0000, expected range: 117.6235 125.2954
DRIFTING BUOYS SURFACE PRESSURE (PA) 2501540 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8963, expected range: -1.4608 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101713 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=441.0739, expected range: 0.0000 138.7520
Severely_persistent: avg_pge=0.8666, expected range: -0.8554 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2301788 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8498, expected range: -1.5790 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6202672 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8736, expected range: -1.4860 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2201555 : out of range
Severe: rms_fgdepar=652.6495, expected range: 0.0000 201.3439
Severe: avg_pge=0.8772, expected range: -0.4260 0.6611
DRIFTING BUOYS SURFACE PRESSURE (PA) 2501665 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=389.5174, expected range: 0.0000 203.7493
DRIFTING BUOYS SURFACE PRESSURE (PA) 4700546 : out of range
Severe: rms_fgdepar=367.8886, expected range: 0.0000 140.3051
DRIFTING BUOYS SURFACE PRESSURE (PA) 1601527 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8747, expected range: -1.0947 0.7500
metar
AUTOMATIC METAR SURFACE PRESSURE (PA) KUTA : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=769.0924, expected range: 0.0000 187.1835
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89578 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8216, expected range: 0.7289 0.9452
LAND TEMP 2M TEMPERATURE (K) 72376 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8062, expected range: 0.2200 1.1319
LAND TEMP 2M TEMPERATURE (K) 56137 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8051, expected range: 0.6568 0.9981
LAND TEMP 2M TEMPERATURE (K) 56029 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8523, expected range: 0.6635 0.9975
BUFR LAND SYNOP 2M TEMPERATURE (K) 89578 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8223, expected range: 0.7290 0.9458
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 72566 : out of range
Severe: rms_fgdepar=10.8213, expected range: 0.0000 5.8508
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 72666 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.7983, expected range: 0.0000 5.0091
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71137 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=12.5076, expected range: 0.0000 7.0866
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71747 : out of range
Severe: rms_fgdepar=7.5128, expected range: 0.0000 3.8488
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 72777 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=9.6693, expected range: 0.0000 4.2090
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 72768 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=9.8475, expected range: 0.0000 3.5537
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89059 : out of range
Severe: rms_fgdepar=9.3029, expected range: 0.0000 4.3965
MANUAL LAND SYNOP 2M TEMPERATURE (K) 23741 : out of range
Severe: rms_fgdepar=7.3755, expected range: 0.0000 3.8523
MANUAL LAND SYNOP 2M TEMPERATURE (K) 67971 : out of range
Severe: rms_fgdepar=10.6073, expected range: 0.0000 5.0877
MANUAL LAND SYNOP 2M TEMPERATURE (K) 83925 : out of range
Severe: rms_fgdepar=7.6682, expected range: 0.0000 4.2019
MANUAL LAND SYNOP 2M TEMPERATURE (K) 23847 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.1135, expected range: 0.0000 3.7303
MANUAL LAND SYNOP 2M TEMPERATURE (K) 23849 : out of range
Severe: rms_fgdepar=8.9836, expected range: 0.0000 3.1467
METAR 2M TEMPERATURE (K) MPPA : out of range
Severe: rms_fgdepar=8.1207, expected range: 0.0000 4.6046
METAR 2M TEMPERATURE (K) UGMS : out of range
4 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8261, expected range: 0.1562 1.1092
METAR 2M TEMPERATURE (K) KRSW : out of range
Severe: rms_fgdepar=7.0382, expected range: 0.3672 3.6423
LAND TEMP 2M TEMPERATURE (K) 72662 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8554, expected range: -0.5935 1.2422
BUFR LAND SYNOP 2M TEMPERATURE (K) 04169 : out of range
Severe: rms_fgdepar=7.7128, expected range: 0.0000 3.9429