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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-09-18 12:00

amsua
METOP-A/AMSUA RADIANCES CHANNEL 11 : out of range
Considerable: stdev_fgdepar=0.3074, expected range: 0.2542 0.2906
iasi
All METOP-A/IASI RADIANCES ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 4425.81 28064.99
METOP-B/IASI RADIANCES (388 channels affected) : out of range
Severe: obs_number=17167.0000, expected range: 21484.7311 22908.6900
mhs
ALLSKY METOP-A/MHS RADIANCES (5 channels affected) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=17849.0000, expected range: 27004.7716 31492.2014
saphir
All ALLSKY SAPHIR RADIANCES ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 2128.29 22220.41
gpsro
All TERRASAR-X SETTING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 1409.56
All TANDEM-X RISING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 1134.90
resat
NOAA-19/SBUV OZONE, TOP PRESSURE LAYER 0-1 (HPA) : out of range
Considerable: obs_number=1900.0000, expected range: 2896.8438 5464.1832
Radiosondes
LAND TEMP TEMPERATURE (K) 37011 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=6.4215, expected range: 0.1828 2.4761
LAND TEMP TEMPERATURE (K) 17281 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8812, expected range: -0.7572 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 31770 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=19.5522, expected range: 0.0000 7.4445
LAND TEMP WIND VECTOR DIFF (M/S) 31770 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_pge=0.8698, expected range: -0.3656 0.5702
LAND TEMP WIND VECTOR DIFF (M/S) 53614 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=23.7866, expected range: 0.0000 10.2754
HIGH RESO LAND TEMP TEMPERATURE (K) (3 pressure layers affected) : out of range
Severe: obs_number=385.0000, expected range: 279.5113 294.5939
HIGH RESO LAND TEMP Q (G/KG) (4 pressure layers affected) : out of range
Severe: obs_number=234.0000, expected range: 193.6379 203.4732
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
Considerable: avg_fgdepar=2.1650, expected range: -1.0023 1.0063
amdar
AMDAR WIND VECTOR DIFF (M/S) AEA042 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.6352, expected range: 0.0000 9.1526
AMDAR WIND VECTOR DIFF (M/S) AEA058 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=18.6829, expected range: 0.0000 8.4121
AMDAR WIND VECTOR DIFF (M/S) AFZA55 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=18.4461, expected range: 0.0000 5.5188
WIGOS AMDAR TEMPERATURE (K) SL0071 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=6.0835, expected range: 0.0000 1.0656
WIGOS AMDAR TEMPERATURE (K) TJKYR3JA PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=8.5734, expected range: 0.0000 1.4957
Severe: avg_pge=0.8581, expected range: -0.0157 0.0172
WIGOS AMDAR TEMPERATURE (K) SL0093 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.2206, expected range: 0.0000 3.2245
WIGOS AMDAR WIND VECTOR DIFF (M/S) MAOFJLZA PRESSURE LAYER 600-900 (HP : out of range
Severe: rms_fgdepar=18.2819, expected range: 0.0000 5.9536
WIGOS AMDAR Q (G/KG) XWGY0OZA PRESSURE LAYER 900-1200 (HPA) : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9874, expected range: -0.9749 0.7500
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 06234 PRESSURE LAYER 300-600 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=21.9230, expected range: 0.0000 15.6869
Severe: avg_pge=0.8905, expected range: -0.9959 0.7500
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 97460 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=21.9168, expected range: 0.0000 8.5213
LAND PILOT WIND VECTOR DIFF (M/S) 68994 PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=15.2167, expected range: 0.0000 12.1843
Severe: avg_pge=0.8740, expected range: -1.0036 0.7500
BUFR LAND PILOT WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=7.3200, expected range: 1.6924 4.6594
Severe: rms_fgdepar=10.8982, expected range: 2.0104 5.4550
synop
MANUAL LAND SYNOP RH2M (%) 40016 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9992, expected range: -1.3049 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42711 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8066, expected range: -1.3389 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42523 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8883, expected range: -0.5367 0.7500
BUFR LAND SYNOP RH2M (%) 02468 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9499, expected range: -1.5600 0.7500
MANUAL LAND SYNOP Z (M) 38734 : out of range
Severe: avg_pge=0.9795, expected range: -0.7213 0.7500
MANUAL LAND SYNOP RH2M (%) 76040 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9995, expected range: -1.1538 0.7500
MANUAL LAND SYNOP RH2M (%) 13180 : out of range
Severe: rms_fgdepar=34.3716, expected range: 0.0000 14.5097
MANUAL LAND SYNOP RH2M (%) 43342 : out of range
Severe: rms_fgdepar=22.4992, expected range: 0.0000 12.5376
MANUAL LAND SYNOP RH2M (%) 83692 : out of range
Severe: rms_fgdepar=38.5341, expected range: 0.0000 34.1734
Severe: avg_pge=0.9769, expected range: -0.1016 0.1328
MANUAL LAND SYNOP RH2M (%) 60415 : out of range
Severe: rms_fgdepar=43.9568, expected range: 0.0000 18.2395
Severe: avg_pge=0.8635, expected range: -0.2438 0.2776
MANUAL LAND SYNOP RH2M (%) 38656 : out of range
Severe: rms_fgdepar=15.3743, expected range: 0.0000 8.5283
MANUAL LAND SYNOP RH2M (%) 72429 : out of range
Severe: rms_fgdepar=30.7109, expected range: 0.0000 12.5534
MANUAL LAND SYNOP RH2M (%) 42639 : out of range
Severe: rms_fgdepar=32.4425, expected range: 0.0000 24.4100
Severe: avg_pge=0.8906, expected range: -0.0098 0.0182
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 65460 : out of range
Severe: rms_fgdepar=696.5535, expected range: 0.0000 180.0993
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 13461 : out of range
Severe: rms_fgdepar=301.4620, expected range: 0.0000 97.9196
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42271 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8449, expected range: -1.4771 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 89571 : out of range
Severe: rms_fgdepar=382.5751, expected range: 0.0000 182.2270
Severe: avg_pge=0.8319, expected range: -0.4321 0.4927
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 62212 : out of range
Severe: avg_pge=0.8526, expected range: -0.8120 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 76412 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8305, expected range: -1.1339 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83186 : out of range
Severe: rms_fgdepar=405.7731, expected range: 0.0000 162.1315
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42367 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8385, expected range: -0.9847 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43289 : out of range
Severe: avg_pge=0.8007, expected range: -1.2778 0.7500
BUFR LAND SYNOP RH2M (%) 34560 : out of range
Severe: rms_fgdepar=29.2561, expected range: 0.0000 8.2248
BUFR LAND SYNOP RH2M (%) 34662 : out of range
Severe: rms_fgdepar=23.7273, expected range: 0.0000 12.6021
BUFR LAND SYNOP RH2M (%) 34644 : out of range
Severe: rms_fgdepar=26.6447, expected range: 0.0000 14.1761
BUFR LAND SYNOP RH2M (%) 34445 : out of range
Severe: rms_fgdepar=26.7371, expected range: 0.0000 14.7753
BUFR LAND SYNOP RH2M (%) 08055 : out of range
Severe: rms_fgdepar=23.2723, expected range: 0.0000 12.9407
BUFR LAND SYNOP RH2M (%) 81737 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=1.0000, expected range: -1.1213 0.7500
BUFR LAND SYNOP RH2M (%) 34357 : out of range
Severe: rms_fgdepar=23.9305, expected range: 0.0000 12.0857
BUFR LAND SYNOP RH2M (%) 34438 : out of range
Severe: rms_fgdepar=29.1067, expected range: 0.0000 13.9127
BUFR LAND SYNOP RH2M (%) 34609 : out of range
Severe: rms_fgdepar=23.5463, expected range: 0.0000 11.5853
BUFR LAND SYNOP SURFACE PRESSURE (PA) 72570 : out of range
Severe: avg_pge=0.8109, expected range: -1.4518 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 61461 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8494, expected range: -0.8231 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 95881 : out of range
Severe: rms_fgdepar=773.0634, expected range: 0.0000 243.9107
Severe: avg_pge=0.9358, expected range: -0.8278 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48037 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8282, expected range: -1.0345 0.7500
MANUAL LAND SYNOP Z (M) : out of range
Slight: obs_number=78.0000, expected range: 51.2624 73.2082
ship
AUTOMATIC SHIP SURFACE PRESSURE (PA) 44058 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8295, expected range: 0.7063 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) LF4J : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8655, expected range: 0.3022 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) 41048 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=944.5511, expected range: 0.0000 141.1360
SHIP SURFACE PRESSURE (PA) 9HA4800 : out of range
Severe: avg_pge=0.8083, expected range: -1.3300 0.7500
SHIP SURFACE PRESSURE (PA) 2ICJ5 : out of range
Severe: rms_fgdepar=357.5201, expected range: 0.0000 158.5560
SHIP SURFACE PRESSURE (PA) VRPJ6 : out of range
Severe: avg_pge=0.8006, expected range: -0.8561 0.7500
SHIP SURFACE PRESSURE (PA) PBCO : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8995, expected range: -0.6396 0.7500
SHIP SURFACE PRESSURE (PA) UAEV : out of range
Severe: avg_pge=0.8773, expected range: -1.0790 0.7500
SHIP WIND VECTOR DIFF (M/S) 2ICJ5 : out of range
Severe: rms_fgdepar=21.7334, expected range: 0.0000 10.2492
Severe: avg_pge=0.8470, expected range: -0.8721 0.7500
buoy
MOORED BUOYS SURFACE PRESSURE (PA) 6101001 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8058, expected range: -0.6317 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-34.4681, expected range: -4.7655 5.2039
DRIFTING BUOYS SURFACE PRESSURE (PA) 4601633 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8897, expected range: -1.1369 0.7500
DRIBU WIND VECTOR DIFF (M/S) 53056 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9200, expected range: 0.7161 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4801655 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=327.5621, expected range: 0.0000 185.1102
metar
METAR SURFACE PRESSURE (PA) VECX : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8079, expected range: -0.8797 0.7500
AUTOMATIC METAR SURFACE PRESSURE (PA) : out of range
Severe: avg_biascorr=130.0000, expected range: 0.0000 0.0000
snow
MANUAL LAND SYNOP SNOW (CM) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=3.6758, expected range: -0.6239 0.8187
t2m
MANUAL LAND SYNOP 2M TEMPERATURE (K) 40690 : out of range
Severe: rms_fgdepar=11.9624, expected range: 1.1793 6.7439
MANUAL LAND SYNOP 2M TEMPERATURE (K) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=230.0000, expected range: 232.0000 232.0000
METAR 2M TEMPERATURE (K) KMOD : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=9.5556, expected range: 1.4960 4.9750
METAR 2M TEMPERATURE (K) KGGG : out of range
Severe: rms_fgdepar=7.0319, expected range: 1.2858 4.5264
METAR 2M TEMPERATURE (K) LTFJ : out of range
Severe: rms_fgdepar=10.9786, expected range: 0.1975 3.2219
LAND TEMP 2M TEMPERATURE (K) 71802 : out of range
Severe: rms_fgdepar=13.7237, expected range: 0.0000 2.3125
Severe: avg_est_pge=0.8743, expected range: -0.1615 0.2494
LAND TEMP 2M TEMPERATURE (K) 72582 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8437, expected range: -0.2625 1.2516
LAND TEMP 2M TEMPERATURE (K) 56137 : out of range
3 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8312, expected range: -0.0245 1.1506
rh2m
MANUAL LAND SYNOP RH2M (%) 34644 : out of range
Severe: rms_fgdepar=30.5865, expected range: 0.0000 15.4144