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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2021-04-02 12:00

iasi
METOP-C IASI RADIANCES CHANNEL 241 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0114, expected range: 0.0202 0.0248
cris
NPP CRIS RADIANCES CHANNEL 110 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0159, expected range: 0.0252 0.0317
NOAA20 CRIS RADIANCES CHANNEL 84 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0636, expected range: 0.0741 0.0821
NOAA20 CRIS RADIANCES CHANNEL 141 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0167, expected range: -0.0139 -0.0110
NPP CRIS RADIANCES CHANNEL 83 : out of range
3 times in the last 10 days for at least one item
Severe: avg_biascorr=-0.0993, expected range: -0.0904 -0.0804
Radiosondes
LAND TEMP TEMPERATURE (K) 24688 PRESSURE LAYER 900-1200 (HPA) : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-9.7418, expected range: -26.7893 7.0712
Severely_persistent: rms_fgdepar=9.7418, expected range: 0.0000 26.6486
All LAND TEMP ALL LAYERS WMO BLOCK 76 : all data missing
Severely_persistent: obs_number=0, expected range: 6.95 398.05
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 76 : all data missing
Severely_persistent: obs_number=0, expected range: 37.77 269.37
All HIGH RESO SEA TEMP ALL LAYERS South Atlantic : all data missing
Severely_persistent: obs_number=0, expected range: 146.14 161.19
LAND TEMP Q (G/KG) 98433 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=6.2509, expected range: -3.5882 5.8198
Severe: rms_fgdepar=6.3002, expected range: 0.0000 5.2986
HIGH RESO LAND TEMP Q (G/KG) 91212 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=2.1182, expected range: 0.0000 0.7071
HIGH RESO LAND TEMP Q (G/KG) 59316 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=5.1933, expected range: 0.0000 1.7875
HIGH RESO LAND TEMP TEMPERATURE (K) 58633 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=6.1803, expected range: 0.4109 2.2058
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 57993 (2 pressure layers af : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=15.8219, expected range: 1.2472 4.0504
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 57993 PRESSURE LAYER 300-60 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=20.9307, expected range: -3.0365 10.1652
Severe: avg_pge=0.8458, expected range: -0.2507 0.4791
BUFR TEMP DESCENT Q (G/KG) PRESSURE LAYER 900-1200 (HPA) : missing
Severe: obs_number=0.0000, expected range: 0.0000 406.8761
LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=132.0000, expected range: 176.0317 245.4683
HIGH RESO LAND TEMP Q (G/KG) (2 pressure layers affected) : out of range
Considerable: obs_number=119.0000, expected range: 15.2070 69.9358
HIGH RESO LAND TEMP TEMPERATURE (K) (3 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=139.0000, expected range: 243.3347 338.1653
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
Considerable: obs_number=362.0000, expected range: 436.6728 472.8272
amdar
ADS-C WIND VECTOR DIFF (M/S) OTFKBNJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=27.6084, expected range: 0.0000 22.2171
ADS-C WIND VECTOR DIFF (M/S) IYFLFXRA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=27.5923, expected range: 0.0000 31.0489
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 01405 PRESSURE LAYER 600-900 : out of range
Severe: avg_pge=0.8522, expected range: -0.8014 0.7500
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : out of range
Considerable: obs_number=978.0000, expected range: 1210.8222 1523.6778
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 41718 PRESSURE LAYER 300-600 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8440, expected range: -0.8231 0.7500
LAND PILOT WIND VECTOR DIFF (M/S) 96011 PRESSURE LAYER 600-900 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8608, expected range: -1.1274 0.7500
LAND PILOT WIND VECTOR DIFF (M/S) 67002 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_fgdepar=22.1060, expected range: -0.2295 3.9927
Severe: avg_pge=0.8894, expected range: -0.1955 0.2770
LAND PILOT WIND VECTOR DIFF (M/S) 96109 PRESSURE LAYER 600-900 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8326, expected range: -0.6834 0.7500
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 18123 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8442, expected range: 0.7798 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 17928 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=552.0777, expected range: 0.0000 978.0736
Severely_persistent: avg_pge=0.8079, expected range: 0.3223 0.7500
MANUAL LAND SYNOP RH2M (%) 43021 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8974, expected range: -0.3345 0.7500
MANUAL LAND SYNOP RH2M (%) 42603 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=51.8603, expected range: -13.4936 73.7644
Severely_persistent: rms_fgdepar=51.8603, expected range: 0.0000 73.7644
Severely_persistent: avg_pge=1.0000, expected range: -1.7262 0.7500
MANUAL LAND SYNOP RH2M (%) 42473 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=52.5093, expected range: 3.3714 66.2752
Severely_persistent: rms_fgdepar=52.5093, expected range: 3.3714 66.2752
MANUAL LAND SYNOP RH2M (%) 42674 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9996, expected range: -0.4831 0.7500
MANUAL LAND SYNOP RH2M (%) 42176 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9310, expected range: -1.3867 0.7500
MANUAL LAND SYNOP RH2M (%) 42177 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9998, expected range: -1.3995 0.7500
MANUAL LAND SYNOP RH2M (%) 42387 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=65.1808, expected range: 11.9894 82.6342
Severely_persistent: rms_fgdepar=65.1808, expected range: 11.9894 82.6342
MANUAL LAND SYNOP RH2M (%) 42709 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=50.4532, expected range: 15.8413 67.8627
Severely_persistent: rms_fgdepar=50.4532, expected range: 15.8413 67.8627
Severely_persistent: avg_pge=0.9951, expected range: -0.0516 0.7500
MANUAL LAND SYNOP RH2M (%) 42459 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=54.8554, expected range: 14.7695 80.4727
Severely_persistent: rms_fgdepar=54.8554, expected range: 14.7695 80.4727
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42177 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8483, expected range: -1.8066 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42468 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8532, expected range: -1.7580 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42469 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-829.9396, expected range: -1182.7403 1021.7223
Severely_persistent: rms_fgdepar=829.9396, expected range: -889.0260 1133.6680
Severely_persistent: avg_pge=0.9244, expected range: -1.3246 0.7500
All MANUAL LAND SYNOP WMO BLOCK 76 : all data missing
Severely_persistent: obs_number=0, expected range: 98.25 166.25
BUFR LAND SYNOP SURFACE PRESSURE (PA) 29471 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=861.6974, expected range: -797.9273 994.5576
Severely_persistent: avg_pge=0.9308, expected range: -1.3269 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 13464 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8380, expected range: -1.6179 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 89564 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=338.3019, expected range: 0.0000 258.0179
Severe: avg_pge=0.8697, expected range: -0.8003 0.7500
MANUAL LAND SYNOP RH2M (%) 62120 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9323, expected range: -1.6343 0.7500
MANUAL LAND SYNOP RH2M (%) 42101 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9802, expected range: -0.6045 0.7500
MANUAL LAND SYNOP RH2M (%) 42731 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9922, expected range: -1.7212 0.7500
MANUAL LAND SYNOP RH2M (%) 42506 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9971, expected range: -1.4592 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42860 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8484, expected range: -1.0628 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 67341 : out of range
Severe: rms_fgdepar=368.7973, expected range: 0.0000 78.8864
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 63674 : out of range
Severe: rms_fgdepar=406.5969, expected range: 0.0000 159.0003
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42395 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=459.2895, expected range: 0.0000 266.8875
Severe: avg_pge=0.8711, expected range: -0.9975 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 82976 : out of range
Severe: rms_fgdepar=419.1034, expected range: 19.7898 183.8888
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43289 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=556.2443, expected range: -1028.1973 1408.5027
Severe: rms_fgdepar=556.2443, expected range: 0.0000 1265.1361
Severe: avg_pge=0.8825, expected range: -1.5393 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40689 : out of range
Severe: avg_fgdepar=1048.0281, expected range: -58.3984 245.0635
Severe: rms_fgdepar=1048.0281, expected range: 0.0000 245.0635
Severe: avg_pge=0.9437, expected range: -0.9497 0.7500
BUFR LAND SYNOP RH2M (%) 86786 : out of range
Severe: avg_pge=0.8863, expected range: -0.3233 0.6049
BUFR LAND SYNOP SURFACE PRESSURE (PA) 29581 : out of range
Severe: rms_fgdepar=645.2283, expected range: 0.0000 85.8693
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=2067.0000, expected range: 2737.4801 2793.2699
Considerable: obs_number=420.0000, expected range: 463.0902 536.6598
AUTOMATIC LAND SYNOP RH2M (%) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=70.0000, expected range: 40.9252 52.5748
Considerable: obs_number=86.0000, expected range: 35.4495 54.3005
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9HA5074 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8043, expected range: 0.2428 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) V7KD8 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=26.0352, expected range: -20.3905 73.9195
Severely_persistent: rms_fgdepar=26.0352, expected range: 0.0000 73.9195
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VRNL8 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8433, expected range: -0.8311 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HA3373 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=540.6829, expected range: 0.0000 2228.9894
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6TQ6 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-618.2085, expected range: -769.5662 -586.9301
Severely_persistent: rms_fgdepar=618.8218, expected range: 587.0771 770.2019
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) C6SE5 : out of range
Severe: rms_fgdepar=18.9023, expected range: 0.0000 8.9076
Severe: avg_pge=0.9148, expected range: -0.9114 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) A8KC6 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=20.9166, expected range: -4.5631 10.3613
Severe: rms_fgdepar=20.9166, expected range: 0.0000 12.4939
Severe: avg_pge=0.9145, expected range: -1.1661 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) HPUO : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8958, expected range: -1.2996 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRCC8 : out of range
Severe: rms_fgdepar=513.2887, expected range: 0.0000 515.9603
BUFR SHIP SYNOP SURFACE PRESSURE (PA) PDAN : out of range
Severe: rms_fgdepar=468.5303, expected range: 0.0000 106.7512
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 5102792 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8227, expected range: 0.7721 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6202694 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-535.5693, expected range: -1134.2248 750.9884
Severely_persistent: rms_fgdepar=536.3577, expected range: 0.0000 1094.2211
DRIFTING BUOYS SURFACE PRESSURE (PA) 5102720 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=334.2786, expected range: 0.0000 151.7271
DRIFTING BUOYS SURFACE PRESSURE (PA) 1501743 : out of range
Severe: rms_fgdepar=378.6064, expected range: 0.0000 75.3112
metar
METAR SURFACE PRESSURE (PA) FKKD : out of range
Severe: rms_fgdepar=316.1729, expected range: 0.0000 164.6020
snow
AUTOMATIC LAND SYNOP SNOW (CM) 71743 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-78.4877, expected range: -79.8202 -69.4911
Severely_persistent: rms_fgdepar=78.4877, expected range: 69.4911 79.8202
AUTOMATIC LAND SYNOP SNOW (CM) 71576 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-58.4072, expected range: -58.9783 -56.4128
Severely_persistent: rms_fgdepar=58.4072, expected range: 56.4128 58.9783
MANUAL LAND SYNOP SNOW (CM) 71816 : out of range
28 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-65.3836, expected range: -66.1373 -46.8633
Severely_persistent: rms_fgdepar=65.3888, expected range: 46.8695 66.1363
BUFR LAND SYNOP SNOW (CM) 01091 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-54.3090, expected range: -103.5288 -35.2018
Severely_persistent: rms_fgdepar=54.3549, expected range: 35.1980 103.5400
BUFR LAND SYNOP SNOW (CM) 01192 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-76.8555, expected range: -80.3121 -61.5617
Severely_persistent: rms_fgdepar=76.8556, expected range: 61.5548 80.3245
BUFR LAND SYNOP SNOW (CM) 71816 : out of range
28 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-65.4163, expected range: -65.9973 -46.8857
Severely_persistent: rms_fgdepar=65.4218, expected range: 46.8922 65.9962
BUFR LAND SYNOP SNOW (CM) 01036 : out of range
36 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-54.8946, expected range: -87.1907 -42.3212
Severely_persistent: rms_fgdepar=54.8984, expected range: 42.3044 87.2463
AUTOMATIC LAND SYNOP SNOW (CM) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=109.4978, expected range: 94.7010 101.1888
t2m
MANUAL LAND SYNOP 2M TEMPERATURE (K) 25700 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-12.8723, expected range: -14.1731 11.2815
Severely_persistent: rms_fgdepar=13.2536, expected range: 0.0000 12.6890
BUFR LAND SYNOP 2M TEMPERATURE (K) 25700 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-12.9357, expected range: -14.2477 11.2506
Severely_persistent: rms_fgdepar=13.3178, expected range: 0.0000 12.7809
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 16618 : out of range
Severe: rms_fgdepar=11.8114, expected range: 0.0000 4.0449
MANUAL LAND SYNOP 2M TEMPERATURE (K) 25707 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=11.0437, expected range: 1.7169 5.8029
METAR 2M TEMPERATURE (K) UHMA : out of range
Severe: avg_fgdepar=15.8952, expected range: -3.5778 6.0553
Severe: rms_fgdepar=16.0013, expected range: 0.0000 9.0930
METAR 2M TEMPERATURE (K) KFCS : out of range
Severe: avg_fgdepar=12.2570, expected range: -5.5455 11.3686
Severe: rms_fgdepar=12.4191, expected range: 0.0000 12.5117
LAND TEMP 2M TEMPERATURE (K) 61660 : out of range
Severe: avg_fgdepar=-13.5316, expected range: -12.4930 6.4374
Severe: rms_fgdepar=13.5316, expected range: 0.0000 11.9802
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
3 times in the last 10 days for at least one item
Considerable: obs_number=2779.0000, expected range: 3559.1259 3916.0963
rh2m
All BUFR LAND SYNOP WMO BLOCK 76 : all data missing
Severely_persistent: obs_number=0, expected range: 28.95 276.19
BUFR LAND SYNOP RH2M (%) : out of range
3 times in the last 10 days for at least one item
Considerable: obs_number=2769.0000, expected range: 3413.1907 4002.8093