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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2020-01-11 00:00

airs
AQUA AIRS RADIANCES CHANNEL 1794 : missing
5 times in the last 10 days for at least one item
Severely_persistent: obs_number=0.0000, expected range: 0.0000 22671.2589
mwhs2
FY-3D MWHS2 ALLSKY RADIANCES CHANNEL 5 : out of range
Slight: avg_norm_fgdepar=0.0877, expected range: -0.0289 0.0763
mwhs
All FY-3B MWHS ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 14309.84 20287.57
atms
NOAA20 ATMS RADIANCES CHANNEL 10 : out of range
Slight: avg_fgdepar=0.0449, expected range: 0.0049 0.0398
Radiosondes
LAND TEMP TEMPERATURE (K) 30758 PRESSURE LAYER 900-1200 (HPA) : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8988, expected range: -0.0609 0.7500
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 0-300 (HPA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: obs_number=198.0000, expected range: 298.9190 351.9560
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 85 : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 520.24
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 37 : all data missing
Severely_persistent: obs_number=0, expected range: 87.15 98.24
LAND TEMP WIND VECTOR DIFF (M/S) 41217 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=21.2419, expected range: 0.0000 4.7872
Severe: avg_pge=0.8563, expected range: -0.4035 0.5729
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Severe: obs_number=75.0000, expected range: 141.1941 168.4726
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 22 : all data missing
Severe: obs_number=0, expected range: 62.27 68.67
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 81 : all data missing
Severe: obs_number=0, expected range: 106.31 159.69
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
Considerable: obs_number=4918.0000, expected range: 2039.1439 4304.6209
HIGH RESO LAND TEMP TEMPERATURE (K) (3 pressure layers affected) : out of range
Considerable: obs_number=174.0000, expected range: 209.4321 335.7901
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
Considerable: obs_number=325.0000, expected range: 350.6003 426.9552
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
3 times in the last 10 days for at least one item
Considerable: obs_number=101.0000, expected range: 78.1877 94.3123
LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 600-900 (HPA) : out of range
2 times in the last 10 days for at least one item
Slight: obs_number=1951.0000, expected range: 2056.2011 2693.6812
amdar
WIGOS AMDAR TEMPERATURE (K) AR1UOGBA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.3626, expected range: 0.0000 1.9985
WIGOS AMDAR TEMPERATURE (K) OJFUNXBA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=8.4916, expected range: 0.0000 2.4682
WIGOS AMDAR WIND VECTOR DIFF (M/S) PYAEIERA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=20.5401, expected range: 0.0000 7.5973
WIGOS AMDAR WIND VECTOR DIFF (M/S) JH2YCURA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=22.8871, expected range: 0.0000 9.2237
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU1005 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=15.3475, expected range: 0.0000 6.1550
WIGOS AMDAR WIND VECTOR DIFF (M/S) GDWKJFBA PRESSURE LAYER 300-600 (HP : out of range
Severe: rms_fgdepar=16.5609, expected range: 0.0000 7.5015
WIGOS AMDAR WIND VECTOR DIFF (M/S) AR1UOGBA PRESSURE LAYER 300-600 (HP : out of range
Severe: rms_fgdepar=16.5526, expected range: 0.0000 8.7006
WIGOS AMDAR WIND VECTOR DIFF (M/S) ZMOBATBA PRESSURE LAYER 300-600 (HP : out of range
Severe: rms_fgdepar=22.4149, expected range: 0.0000 9.6301
Severe: avg_pge=0.8510, expected range: -0.4171 0.5197
WIGOS AMDAR WIND VECTOR DIFF (M/S) BR0UNVRA PRESSURE LAYER 300-600 (HP : out of range
Severe: rms_fgdepar=18.2973, expected range: 0.0000 7.3704
WIGOS AMDAR WIND VECTOR DIFF (M/S) TJDVJERA PRESSURE LAYER 600-900 (HP : out of range
Severe: rms_fgdepar=17.5607, expected range: 0.0000 8.5100
WIGOS AMDAR WIND VECTOR DIFF (M/S) OVI0S5ZA (2 pressure layers affecte : out of range
Severe: rms_fgdepar=16.6347, expected range: 0.0000 6.7305
WIGOS AMDAR WIND VECTOR DIFF (M/S) J2AEOFBA PRESSURE LAYER 900-1200 (H : out of range
Severe: rms_fgdepar=19.2064, expected range: 0.0000 6.2142
WIGOS AMDAR WIND VECTOR DIFF (M/S) L42AP1RA PRESSURE LAYER 900-1200 (H : out of range
Severe: rms_fgdepar=15.6984, expected range: 0.0000 7.0803
WIGOS AMDAR WIND VECTOR DIFF (M/S) W4CXLDRA PRESSURE LAYER 900-1200 (H : out of range
Severe: rms_fgdepar=15.1798, expected range: 0.0000 7.4654
airep
AIREP WIND VECTOR DIFF (M/S) SWR39 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=23.5039, expected range: 0.0000 6.7473
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) (2 pressure layers affected) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: obs_number=2472.0000, expected range: 834.3265 1737.9088
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 03969 PRESSURE LAYER 900-1200 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8511, expected range: -0.4798 0.7500
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 96207 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=17.3474, expected range: 0.0000 10.3645
Severe: avg_pge=0.8539, expected range: -0.5024 0.7500
synop
MANUAL LAND SYNOP RH2M (%) 76040 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9655, expected range: -1.0935 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24585 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8753, expected range: 0.2463 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 56946 : out of range
26 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8873, expected range: -1.1586 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 72386 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8002, expected range: 0.6952 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 78896 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8204, expected range: 0.3240 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=0.8974, expected range: -1.1781 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 60691 : out of range
Severe: rms_fgdepar=37.3851, expected range: 0.0000 18.2998
Severe: rms_fgdepar=30.5159, expected range: 0.0000 13.3397
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) : out of range
3 times in the last 10 days for at least one item
Severe: obs_number=122.0000, expected range: 256.0377 383.9623
MANUAL LAND SYNOP RH2M (%) 40016 : out of range
Severe: rms_fgdepar=36.1560, expected range: 0.0000 16.2217
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43241 : out of range
Severe: avg_pge=0.8613, expected range: -0.7172 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40606 : out of range
Severe: avg_pge=0.8242, expected range: -0.9735 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 91648 : out of range
Severe: rms_fgdepar=514.8210, expected range: 0.0000 367.2749
Severe: avg_pge=0.8803, expected range: -1.2192 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 63478 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8081, expected range: -0.9650 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40809 : out of range
Severe: rms_fgdepar=659.6808, expected range: 0.0000 198.6180
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43029 : out of range
Severe: avg_pge=0.8362, expected range: -0.8156 0.7500
BUFR LAND SYNOP RH2M (%) 70361 : out of range
Severe: avg_pge=0.9248, expected range: -0.2037 0.2308
BUFR LAND SYNOP RH2M (%) 94633 : out of range
Severe: avg_pge=0.8293, expected range: -1.5185 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 72250 : out of range
Severe: rms_fgdepar=392.7736, expected range: 0.0000 100.8786
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71021 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8769, expected range: -1.2674 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 14544 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8047, expected range: -0.2437 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 04208 : out of range
Severe: rms_fgdepar=316.6191, expected range: 0.0000 174.4187
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24588 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8274, expected range: -0.0382 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 04339 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=319.6073, expected range: 0.0000 157.4588
ship
SHIP WIND VECTOR DIFF (M/S) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: obs_number=15.0000, expected range: 500.0469 1027.1754
SHIP SURFACE PRESSURE (PA) : out of range
12 times in the last 10 days for at least one item
Severely_persistent: obs_number=16.0000, expected range: 715.6808 1352.3192
Severely_persistent: avg_fgdepar=412.0616, expected range: -99.5194 98.1017
Severely_persistent: rms_fgdepar=524.2741, expected range: 51.6260 279.2972
Severely_persistent: avg_fgdepar=234.5469, expected range: -66.9232 83.1688
Severely_persistent: rms_fgdepar=385.2220, expected range: 86.6491 240.5930
Severely_persistent: avg_fgdepar=736.2044, expected range: -239.7028 242.8583
Severely_persistent: rms_fgdepar=736.2044, expected range: 0.0000 455.3742
Severely_persistent: avg_pge=0.9085, expected range: -0.4606 0.7500
Severely_persistent: obs_number=2.0000, expected range: 146.6875 324.1875
Severely_persistent: rms_fgdepar=736.2044, expected range: 0.0000 631.5816
Severely_persistent: avg_pge=0.9085, expected range: -0.6862 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: obs_number=3576.0000, expected range: 369.3058 620.1942
Severely_persistent: obs_number=1152.0000, expected range: 216.0505 433.9495
Severely_persistent: obs_number=1754.0000, expected range: 361.6576 608.4535
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) MERFR14 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8269, expected range: -0.6647 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) EUCDE08 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8079, expected range: -0.0248 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) LF8A : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9441, expected range: -0.8975 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) LF4X : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8599, expected range: -0.8980 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) : out of range
4 times in the last 10 days for at least one item
Severely_persistent: obs_number=6783.0000, expected range: 1083.0997 1415.4559
Severely_persistent: obs_number=2950.0000, expected range: 407.8735 944.6821
Severely_persistent: obs_number=446.0000, expected range: 0.0000 177.5356
Severely_persistent: obs_number=623.0000, expected range: 76.7849 293.1040
Severely_persistent: rms_fgdepar=163.0117, expected range: 10.5614 95.8797
Severely_persistent: obs_number=4386.0000, expected range: 1051.1137 1383.4974
Severe: obs_number=2010.0000, expected range: 0.0000 196.9945
Considerable: rms_fgdepar=228.8985, expected range: 0.0000 149.5730
Considerable: rms_fgdepar=228.8985, expected range: 0.0000 149.6738
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=0.9479, expected range: 0.7538 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) : out of range
4 times in the last 10 days for at least one item
Severe: obs_number=771.0000, expected range: 1957.8521 2482.5803
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 4602502 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8639, expected range: -1.7214 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101720 : out of range
Severe: rms_fgdepar=300.5194, expected range: 0.0000 149.0290
DRIFTING BUOYS SURFACE PRESSURE (PA) 3401558 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=335.8076, expected range: 0.0000 173.8445
metar
METAR SURFACE PRESSURE (PA) OIMB : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=578.9742, expected range: 0.0000 165.6905
METAR SURFACE PRESSURE (PA) FZIC : out of range
Severe: rms_fgdepar=570.9026, expected range: 0.0000 307.7522
Severe: avg_pge=0.8038, expected range: -0.6778 0.7500
METAR SURFACE PRESSURE (PA) OIAH : out of range
Severe: rms_fgdepar=379.8681, expected range: 0.0000 188.4576
AUTOMATIC METAR SURFACE PRESSURE (PA) KDEC : out of range
Severe: rms_fgdepar=349.9301, expected range: 0.0000 102.4085
AUTOMATIC METAR SURFACE PRESSURE (PA) KJEF : out of range
Severe: rms_fgdepar=352.9416, expected range: 0.0000 102.7559
AUTOMATIC METAR SURFACE PRESSURE (PA) KMDH : out of range
Severe: rms_fgdepar=306.3400, expected range: 0.0000 152.4814
AUTOMATIC METAR SURFACE PRESSURE (PA) KALN : out of range
Severe: rms_fgdepar=357.2040, expected range: 0.0000 117.7846
AUTOMATIC METAR SURFACE PRESSURE (PA) KCPS : out of range
Severe: rms_fgdepar=442.9866, expected range: 0.0000 137.2399
AUTOMATIC METAR SURFACE PRESSURE (PA) KSUS : out of range
Severe: rms_fgdepar=422.7342, expected range: 0.0000 172.2230
snow
MANUAL LAND SYNOP SNOW (CM) 71951 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=24.3258, expected range: 0.0000 7.9341
t2m
MANUAL LAND SYNOP 2M TEMPERATURE (K) 36259 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8216, expected range: 0.5002 1.0573
LAND TEMP 2M TEMPERATURE (K) 30372 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8236, expected range: 0.6863 0.9884
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02161 : out of range
Severe: rms_fgdepar=11.3998, expected range: 0.0000 6.0762
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71977 : out of range
2 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8266, expected range: -0.1915 1.2397
MANUAL LAND SYNOP 2M TEMPERATURE (K) 21821 : out of range
Severe: rms_fgdepar=11.1273, expected range: 0.0000 6.3003
MANUAL LAND SYNOP 2M TEMPERATURE (K) 17285 : out of range
2 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8143, expected range: -0.2999 0.8553
MANUAL LAND SYNOP 2M TEMPERATURE (K) 84117 : out of range
Severe: rms_fgdepar=19.1957, expected range: 0.0000 3.9904
Severe: avg_est_pge=0.8498, expected range: -0.1978 0.2825
MANUAL LAND SYNOP 2M TEMPERATURE (K) 24477 : out of range
4 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8224, expected range: 0.1273 1.1800
METAR 2M TEMPERATURE (K) PHLI : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=12.7018, expected range: 0.1443 3.8581
METAR 2M TEMPERATURE (K) LIPU : out of range
Severe: rms_fgdepar=13.4330, expected range: 0.0000 4.4316
LAND TEMP 2M TEMPERATURE (K) 29572 : out of range
Severe: avg_est_pge=0.8460, expected range: -0.5470 1.2862
LAND TEMP 2M TEMPERATURE (K) 30758 : out of range
2 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8380, expected range: 0.3132 1.0798
BUFR LAND SYNOP 2M TEMPERATURE (K) 71977 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8265, expected range: -0.1865 1.2359
rh2m
MANUAL LAND SYNOP RH2M (%) 29752 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=32.5798, expected range: 0.0000 15.6542
BUFR LAND SYNOP RH2M (%) : out of range
3 times in the last 10 days for at least one item
Severe: obs_number=85.0000, expected range: 147.8835 204.9060
AUTOMATIC LAND SYNOP RH2M (%) : out of range
3 times in the last 10 days for at least one item
Considerable: obs_number=151.0000, expected range: 287.9896 471.3262