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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2020-01-10 12:00

airs
AQUA AIRS RADIANCES CHANNEL 1794 : missing
4 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 0.0000 22671.2589
mwhs
All FY-3B MWHS ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 14344.90 20228.22
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_pge=0.8156, expected range: -0.8355 0.7500
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 84 : all data missing
Severely_persistent: obs_number=0, expected range: 101.72 147.88
LAND TEMP TEMPERATURE (K) 23205 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=11.6608, expected range: 0.0000 3.7244
Severe: avg_pge=0.8309, expected range: -0.2681 0.4257
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=3.3977, expected range: 0.3045 1.9382
LAND TEMP Q (G/KG) 38341 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.9298, expected range: -1.2284 0.7500
HIGH RESO LAND TEMP TEMPERATURE (K) (4 pressure layers affected) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=5166.0000, expected range: 2452.7278 3580.3310
HIGH RESO LAND TEMP Q (G/KG) (2 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=480.0000, expected range: 580.0569 664.7666
Severe: obs_number=397.0000, expected range: 478.9260 573.5184
Considerable: obs_number=262.0000, expected range: 282.7165 359.2835
HIGH RESO LAND TEMP Q (G/KG) 87344 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=2.3698, expected range: 0.0000 1.3453
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
3 times in the last 10 days for at least one item
Severe: obs_number=195.0000, expected range: 256.0240 268.2113
Severe: obs_number=286.0000, expected range: 482.8986 565.4543
Considerable: obs_number=91.0000, expected range: 215.1047 551.1175
LAND TEMP WIND VECTOR DIFF (M/S) (4 pressure layers affected) : out of range
4 times in the last 10 days for at least one item
Considerable: obs_number=1608.0000, expected range: 2299.2160 3235.3395
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=153.0000, expected range: 158.9093 182.4240
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) DIJX1DJA PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=21.4878, expected range: 0.0000 12.5367
Severe: avg_pge=0.8707, expected range: -0.4791 0.6116
WIGOS AMDAR WIND VECTOR DIFF (M/S) I03YR3JA PRESSURE LAYER 300-600 (HP : out of range
Severe: rms_fgdepar=16.3397, expected range: 0.0000 7.9221
WIGOS AMDAR WIND VECTOR DIFF (M/S) UPOYR3ZA PRESSURE LAYER 300-600 (HP : out of range
Severe: rms_fgdepar=19.3035, expected range: 0.0000 9.2102
WIGOS AMDAR WIND VECTOR DIFF (M/S) TWRTPMBA PRESSURE LAYER 600-900 (HP : out of range
Severe: rms_fgdepar=15.6617, expected range: 0.0000 8.1286
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) (2 pressure layers affected) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: obs_number=2440.0000, expected range: 1259.8935 1369.7731
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 94693 PRESSURE LAYER 600-900 : out of range
Severe: rms_fgdepar=17.8940, expected range: 0.0000 12.4834
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 94693 (2 pressure layers affe : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9066, expected range: -0.8490 0.7500
pilot
BUFR LAND PILOT 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=234.0000, expected range: 15.8378 179.5740
synop
BUFR LAND SYNOP RH2M (%) 81739 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9731, expected range: -1.6844 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=0.8711, expected range: -0.0985 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 56946 : out of range
27 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8972, expected range: -1.3968 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 72386 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8039, expected range: 0.6753 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 04077 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=467.7292, expected range: 0.0000 254.8260
Severely_persistent: avg_pge=0.9060, expected range: -0.4332 0.5814
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=0.8928, expected range: -1.1606 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 89575 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9912, expected range: -1.2000 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=105.0000, expected range: 270.5389 343.4611
MANUAL LAND SYNOP RH2M (%) 63471 : out of range
Severe: avg_pge=0.8105, expected range: -0.9632 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83971 : out of range
Severe: rms_fgdepar=326.7788, expected range: 0.0000 124.2012
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 62212 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8180, expected range: -0.1844 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83952 : out of range
Severe: rms_fgdepar=325.3257, expected range: 0.0000 145.2487
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=0.8734, expected range: -0.5740 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 76323 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=489.0260, expected range: 0.0000 192.9039
Severe: avg_pge=0.8190, expected range: -0.8107 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 76773 : out of range
Severe: rms_fgdepar=783.2895, expected range: 0.0000 170.0194
Severe: avg_pge=0.9025, expected range: -0.7531 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 78767 : out of range
Severe: rms_fgdepar=303.9548, expected range: 0.0000 109.6085
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83967 : out of range
Severe: rms_fgdepar=328.9054, expected range: 0.0000 111.0689
BUFR LAND SYNOP RH2M (%) 01440 : out of range
Severe: rms_fgdepar=36.9189, expected range: 0.0000 11.4889
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71021 : out of range
Severe: avg_pge=0.8304, expected range: -0.9932 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94116 : out of range
Severe: rms_fgdepar=327.6997, expected range: 0.0000 152.7016
BUFR LAND SYNOP SURFACE PRESSURE (PA) 04166 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8135, expected range: -0.4476 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94866 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8923, expected range: -0.9886 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 30127 : out of range
Severe: rms_fgdepar=686.2660, expected range: 0.0000 115.0352
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24588 : out of range
Severe: avg_pge=0.8332, expected range: -0.1904 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 04339 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=417.6183, expected range: 0.0000 165.3898
Severe: avg_pge=0.8911, expected range: -0.3200 0.4850
AUTOMATIC LAND SYNOP RH2M (%) : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=319.0000, expected range: 353.0496 431.2838
Severe: obs_number=126.0000, expected range: 300.5953 458.5714
MANUAL LAND SYNOP RH2M (%) : out of range
Considerable: obs_number=90.0000, expected range: 108.5643 154.1726
ship
SHIP SURFACE PRESSURE (PA) : out of range
9 times in the last 10 days for at least one item
Severely_persistent: obs_number=16.0000, expected range: 705.4750 1369.6601
Severely_persistent: avg_fgdepar=212.1908, expected range: -65.8335 82.2359
Severely_persistent: rms_fgdepar=363.9738, expected range: 87.2703 239.5856
Severely_persistent: avg_fgdepar=516.8199, expected range: -242.9196 242.8566
Severely_persistent: rms_fgdepar=516.8199, expected range: 0.0000 451.4751
Severely_persistent: avg_pge=0.8681, expected range: -0.3346 0.7500
Severely_persistent: rms_fgdepar=499.0451, expected range: 20.4782 288.8275
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) EUCDE08 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8539, expected range: -0.0975 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=0.9191, expected range: -0.9017 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=0.8803, expected range: -0.0120 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) : out of range
3 times in the last 10 days for at least one item
Severely_persistent: obs_number=410.0000, expected range: 0.0000 176.5451
Severely_persistent: obs_number=554.0000, expected range: 74.6847 293.5855
Severely_persistent: rms_fgdepar=192.6301, expected range: 9.8674 97.3647
Severe: obs_number=6780.0000, expected range: 1083.0010 1417.8099
Severe: obs_number=2939.0000, expected range: 411.7489 941.6024
Severe: rms_fgdepar=218.7462, expected range: 0.0000 123.1701
Severe: rms_fgdepar=222.6765, expected range: 0.0000 118.9970
Severe: obs_number=4393.0000, expected range: 1051.0194 1385.8455
Considerable: rms_fgdepar=219.7734, expected range: 0.0000 134.0093
AUTOMATIC SHIP SURFACE PRESSURE (PA) : out of range
3 times in the last 10 days for at least one item
Severe: obs_number=773.0000, expected range: 1955.8894 2488.6369
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) MERFR14 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8741, expected range: -0.6659 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-521.6816, expected range: -228.2074 213.7556
Severely_persistent: rms_fgdepar=588.6125, expected range: 0.0000 515.0232
Severely_persistent: avg_pge=0.8140, expected range: -0.6228 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4401563 : out of range
Severe: rms_fgdepar=448.6334, expected range: 0.0000 223.1593
DRIFTING BUOYS SURFACE PRESSURE (PA) 4700546 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8140, expected range: -1.2847 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6203576 : out of range
Severe: rms_fgdepar=342.5201, expected range: 0.0000 192.0992
metar
METAR SURFACE PRESSURE (PA) GOSP : out of range
Severe: rms_fgdepar=301.4759, expected range: 0.0000 150.0094
METAR SURFACE PRESSURE (PA) KRHV : out of range
Severe: rms_fgdepar=362.7455, expected range: 0.0000 162.2453
snow
MANUAL LAND SYNOP SNOW (CM) 71951 : out of range
Severe: rms_fgdepar=18.4359, expected range: 0.0000 7.9719
BUFR LAND SYNOP SNOW (CM) 02801 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=16.8526, expected range: 0.0000 7.3542
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=0.8229, expected range: 0.4903 1.0579
LAND TEMP 2M TEMPERATURE (K) 56046 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8327, expected range: 0.1606 1.2601
BUFR LAND SYNOP 2M TEMPERATURE (K) 51542 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8078, expected range: 0.4235 1.1552
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71001 : out of range
2 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8091, expected range: -0.2705 1.3142
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71195 : out of range
2 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8182, expected range: -0.2641 1.3148
AUTOMATIC 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=0.8106, expected range: -0.1879 1.2182
METAR 2M TEMPERATURE (K) PHLI : out of range
Severe: rms_fgdepar=11.5073, expected range: 0.1159 3.8566
BUFR LAND SYNOP 2M TEMPERATURE (K) 71977 : out of range
Severe: avg_est_pge=0.8106, expected range: -0.1827 1.2144
MANUAL LAND SYNOP 2M TEMPERATURE (K) : out of range
4 times in the last 10 days for at least one item
Considerable: obs_number=233.0000, expected range: 80.1671 180.8884
rh2m
BUFR LAND SYNOP RH2M (%) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=91.0000, expected range: 153.8089 200.5800