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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-09-21 12:00

iasi
All METOP-A/IASI RADIANCES ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 26254.19
mhs
ALLSKY METOP-A/MHS RADIANCES (5 channels affected) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: obs_number=12633.0000, expected range: 22859.6109 34653.2224
saphir
All ALLSKY SAPHIR RADIANCES ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 1924.31 22270.48
gpsro
All TERRASAR-X SETTING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 1498.02
All TANDEM-X RISING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 1113.63
Atmospheric Motion Vector
GOES-16/AMV VIS1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Slight: obs_number=16306.0000, expected range: 17602.9406 23435.3927
Radiosondes
LAND TEMP TEMPERATURE (K) 43150 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=6.9914, expected range: 0.0000 2.4003
Severe: avg_pge=0.8874, expected range: -0.1710 0.2801
LAND TEMP TEMPERATURE (K) 24122 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=9.2733, expected range: 0.0000 4.6896
LAND TEMP TEMPERATURE (K) 34122 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.2712, expected range: 0.0000 4.4994
Severe: avg_pge=0.8587, expected range: -0.5781 0.7500
LAND TEMP Q (G/KG) 83827 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=4.2263, expected range: 0.0000 2.2294
LAND TEMP WIND VECTOR DIFF (M/S) 40754 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.8805, expected range: 1.6192 7.1042
LAND TEMP WIND VECTOR DIFF (M/S) 24122 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=30.7860, expected range: 0.0000 9.2597
LAND TEMP WIND VECTOR DIFF (M/S) 24122 PRESSURE LAYER 300-600 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8882, expected range: -0.6621 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 29862 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=17.5439, expected range: 0.0000 9.5448
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
Severe: avg_fgdepar=1.2007, expected range: -0.6243 0.4040
Severe: rms_fgdepar=2.2709, expected range: 0.0000 0.9468
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: rms_fgdepar=1.9960, expected range: 1.4492 1.7641
LAND TEMP TEMPERATURE (K) (4 pressure layers affected) : out of range
Considerable: obs_number=207.0000, expected range: 324.3001 545.9221
LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
Considerable: obs_number=58.0000, expected range: 129.7596 292.2404
LAND TEMP WIND VECTOR DIFF (M/S) (4 pressure layers affected) : out of range
Considerable: obs_number=251.0000, expected range: 360.8592 736.6964
HIGH RESO LAND TEMP Q (G/KG) (4 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=2396.0000, expected range: 1900.0101 2234.6565
HIGH RESO SEA TEMP Q (G/KG) PRESSURE LAYER 0-300 (HPA) : out of range
3 times in the last 10 days for at least one item
Slight: avg_fgdepar=-0.0080, expected range: -0.0063 0.0093
Slight: rms_fgdepar=0.0274, expected range: 0.0000 0.0208
amdar
WIGOS AMDAR TEMPERATURE (K) HL7716 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.8559, expected range: -0.4934 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) SWUJJLBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_pge=0.8211, expected range: -0.5619 0.7500
WIGOS AMDAR Q (G/KG) BWWUOGBA PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9801, expected range: -1.1537 0.7500
airep
AIREP WIND VECTOR DIFF (M/S) AAL1945 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=23.3906, expected range: 0.0000 8.0150
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) : out of range
7 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=107.3576, expected range: 32.5852 73.5641
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42711 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8710, expected range: -1.3930 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42523 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8020, expected range: -0.5552 0.7500
MANUAL LAND SYNOP RH2M (%) 40016 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9999, expected range: -0.4730 0.7500
MANUAL LAND SYNOP RH2M (%) 51777 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9958, expected range: -2.0040 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 81982 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8896, expected range: -0.8732 0.7500
BUFR LAND SYNOP RH2M (%) 81737 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9999, expected range: -1.1684 0.7500
BUFR LAND SYNOP RH2M (%) 02468 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9733, expected range: -1.7436 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 76220 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8707, expected range: -1.7998 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 86260 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8960, expected range: -1.2323 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 62212 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8690, expected range: -0.8213 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 58362 : out of range
Severe: rms_fgdepar=338.2044, expected range: 0.0000 136.9163
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=0.8719, expected range: -1.0184 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 82753 : out of range
Severe: rms_fgdepar=370.3125, expected range: 0.0000 163.6156
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 38974 : out of range
Severe: rms_fgdepar=611.1656, expected range: 0.0000 157.4510
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 37785 : out of range
Severe: rms_fgdepar=648.8912, expected range: 0.0000 322.9205
Severe: avg_pge=0.8607, expected range: -0.9787 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42577 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=460.2743, expected range: 0.0000 330.0622
Severe: avg_pge=0.8350, expected range: -1.1005 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42469 : out of range
Severe: rms_fgdepar=1034.0780, expected range: 0.0000 423.4485
Severe: avg_pge=0.9351, expected range: -0.9713 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43289 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8193, expected range: -1.3523 0.7500
MANUAL LAND SYNOP RH2M (%) 60360 : out of range
Severe: rms_fgdepar=39.4304, expected range: 0.0000 20.3308
Severe: avg_pge=0.9883, expected range: -0.0027 0.0092
MANUAL LAND SYNOP RH2M (%) 42393 : out of range
Severe: rms_fgdepar=39.9213, expected range: 0.0000 23.1180
Severe: avg_pge=0.9998, expected range: -0.0028 0.0098
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
Severe: avg_biascorr=743.3333, expected range: 174.9468 488.4250
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48064 : out of range
Severe: avg_pge=0.8220, expected range: -0.5106 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 27415 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8648, expected range: 0.2403 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48077 : out of range
Severe: avg_pge=0.8006, expected range: -1.0088 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 21608 : out of range
Severe: rms_fgdepar=541.5741, expected range: 0.0000 144.1912
BUFR LAND SYNOP RH2M (%) 07510 : out of range
Severe: rms_fgdepar=29.4760, expected range: 0.0000 16.3218
BUFR LAND SYNOP RH2M (%) 34772 : out of range
Severe: rms_fgdepar=23.5693, expected range: 0.0000 10.5039
BUFR LAND SYNOP RH2M (%) 71983 : out of range
Severe: rms_fgdepar=26.6240, expected range: 0.0000 14.7452
BUFR LAND SYNOP RH2M (%) 07335 : out of range
Severe: rms_fgdepar=18.6867, expected range: 0.0000 9.2046
ship
AUTOMATIC SHIP WIND VECTOR DIFF (M/S) 42013 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8744, expected range: -1.2074 0.7500
SHIP SURFACE PRESSURE (PA) 9V2779 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9040, expected range: -0.7294 0.7500
SHIP WIND VECTOR DIFF (M/S) DIXJ2 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8415, expected range: -0.0963 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) LF4J : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8406, expected range: 0.3082 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) AMOUK57 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=790.0772, expected range: 0.0000 260.0153
Severe: avg_pge=0.9285, expected range: -0.2878 0.5735
SHIP SURFACE PRESSURE (PA) 9HA4800 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8612, expected range: -1.3710 0.7500
SHIP SURFACE PRESSURE (PA) TBWUK32 : out of range
Severe: avg_pge=0.8895, expected range: -1.2630 0.7500
SHIP SURFACE PRESSURE (PA) 9V3533 : out of range
Severe: rms_fgdepar=464.7207, expected range: 0.0000 402.9584
Severe: avg_pge=0.8556, expected range: -0.9472 0.7500
SHIP SURFACE PRESSURE (PA) VRGW3 : out of range
Severe: avg_pge=0.8042, expected range: -0.4250 0.7500
SHIP WIND VECTOR DIFF (M/S) DHEK2 : out of range
Severe: rms_fgdepar=17.5834, expected range: 0.0000 10.4787
Severe: avg_pge=0.9186, expected range: -0.9232 0.7500
ABBREVIATED SHIP SURFACE PRESSURE (PA) 9HJC9 : out of range
Severe: rms_fgdepar=512.9650, expected range: 0.0000 383.0113
Severe: avg_pge=0.8884, expected range: -1.0939 0.7500
buoy
DRIBU WIND VECTOR DIFF (M/S) 53056 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9305, expected range: 0.7147 0.7500
MOORED BUOYS WIND VECTOR DIFF (M/S) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: obs_number=243.0000, expected range: 189.3844 197.1712
DRIFTING BUOYS SURFACE PRESSURE (PA) 4601633 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8436, expected range: -1.0598 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5301764 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9056, expected range: -1.4570 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1701536 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8995, expected range: -0.1084 0.7500
DRIBU WIND VECTOR DIFF (M/S) 23456 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9183, expected range: 0.7173 0.7500
MOORED BUOYS SURFACE PRESSURE (PA) 6101001 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8318, expected range: -0.6193 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 0022684 : out of range
Severe: rms_fgdepar=509.0379, expected range: 0.0000 332.7368
Severe: avg_pge=0.8557, expected range: -0.9444 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1301607 : out of range
Severe: rms_fgdepar=320.7723, expected range: 0.0000 101.4009
DRIFTING BUOYS SURFACE PRESSURE (PA) 2301607 : out of range
Severe: avg_pge=0.8104, expected range: -0.4373 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 0022959 : out of range
Severe: rms_fgdepar=311.4869, expected range: 0.0000 137.0820
DRIFTING BUOYS SURFACE PRESSURE (PA) 6203579 : out of range
Severe: rms_fgdepar=321.0678, expected range: 0.0000 138.6750
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
1 times in the last 10 days for at least one item
Considerable: rms_fgdepar=106.8628, expected range: 24.9183 75.7810
snow
BUFR LAND SYNOP SNOW (CM) : out of range
29 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=0.0154, expected range: -0.0061 0.0053
Severely_persistent: rms_fgdepar=0.7183, expected range: -0.1215 0.2030
Severely_persistent: obs_number=738.0000, expected range: 936.6925 1097.1964
MANUAL LAND SYNOP SNOW (CM) : out of range
Slight: avg_fgdepar=-62.6667, expected range: -47.1075 28.8519
t2m
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89504 : out of range
2 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8285, expected range: -0.2206 1.3553
MANUAL LAND SYNOP 2M TEMPERATURE (K) 40708 : out of range
Severe: rms_fgdepar=9.2658, expected range: 0.0000 4.7893
METAR 2M TEMPERATURE (K) RKPC : out of range
Severe: rms_fgdepar=7.8111, expected range: 0.5614 3.1733
METAR 2M TEMPERATURE (K) SKBG : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.7667, expected range: 0.0000 4.1044
METAR 2M TEMPERATURE (K) KDWH : out of range
Severe: rms_fgdepar=9.8612, expected range: 0.2146 5.1399
METAR 2M TEMPERATURE (K) KDVT : out of range
Severe: rms_fgdepar=9.0920, expected range: 0.0323 4.0298
LAND TEMP 2M TEMPERATURE (K) 72501 : out of range
2 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8067, expected range: -0.5492 1.0523
LAND TEMP 2M TEMPERATURE (K) 72376 : out of range
2 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8714, expected range: -0.3573 1.3317
LAND TEMP 2M TEMPERATURE (K) 56029 : out of range
3 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8722, expected range: -0.3047 1.3850
BUFR LAND SYNOP 2M TEMPERATURE (K) 89504 : out of range
2 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8018, expected range: -0.1992 1.3514
LAND TEMP 2M TEMPERATURE (K) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=76.0000, expected range: 83.7516 103.0052
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 40587 : out of range
Severe: rms_fgdepar=15.8282, expected range: 0.0000 7.4713
BUFR LAND SYNOP RH2M (%) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=204.0000, expected range: 301.7702 486.5982