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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-09-29 00:00

atms
NPP ATMS RADIANCES CHANNEL 12 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2741, expected range: -0.2092 -0.1651
NPP ATMS RADIANCES CHANNEL 9 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.5514, expected range: -0.4580 -0.4434
NOAA20 ATMS RADIANCES CHANNEL 12 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.3644, expected range: -0.3168 -0.2826
ssmis
DMSP-17 SSMIS RADIANCES CHANNEL 17 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-2.4235, expected range: -2.8179 -2.6872
gpsro
SPIRE LEMUR 3U GPSRO RISING HEIGHT 6-8 KM : out of range
Considerable: stdev_norm_fgdepar=0.5110, expected range: 0.0853 0.3360
COSMIC2-E3 GPSRO SETTING HEIGHT 48-50 KM : out of range
Slight: avg_norm_fgdepar=0.1276, expected range: -0.1108 0.0705
COSMIC2-E3 GPSRO RISING HEIGHT 38-40 KM : out of range
Slight: avg_norm_fgdepar=0.2707, expected range: -0.1633 0.1629
Atmospheric Motion Vector
HIMAWARI-8 AMV IR1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : out of range
Considerable: obs_number=2488.0000, expected range: 3519.7233 4458.7767
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1010-1011 (HPA) : out of range
11 times in the last 10 days for at least one item
Slight: avg_fgdepar=-4.1827, expected range: -3.3301 -3.3301
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1600-1601 (HPA) : out of range
7 times in the last 10 days for at least one item
Slight: stdev_fgdepar=3.4059, expected range: 2.8430 3.3217
Radiosondes
LAND TEMP WIND VECTOR DIFF (M/S) 36003 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=17.1047, expected range: 0.0000 6.9290
LAND TEMP Q (G/KG) 41256 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=5.7879, expected range: 0.0000 3.0844
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=550.0000, expected range: 450.6111 458.9444
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA : missing
1 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 94.4354 99.0646
HIGH RESO LAND TEMP Q (G/KG) 72597 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_fgdepar=8.1119, expected range: -2.1457 2.3021
Severe: rms_fgdepar=8.1119, expected range: 0.0681 1.5119
HIGH RESO LAND TEMP Q (G/KG) 94302 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=4.2862, expected range: 0.0000 2.1845
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=1.0277, expected range: 0.1838 0.4495
LAND TEMP Q (G/KG) (2 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=51.0000, expected range: 1.1698 11.0802
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
Considerable: rms_fgdepar=1.6833, expected range: 0.9592 1.4371
amdar
TAMDAR WIND VECTOR DIFF (M/S) 00005154 PRESSURE LAYER 0-300 (HPA) : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=20.1021, expected range: 11.7959 24.9237
WIGOS AMDAR WIND VECTOR DIFF (M/S) EZW13RZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.6948, expected range: 0.5532 6.4521
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : missing
6 times in the last 10 days for at least one item
Severely_persistent: obs_number=0.0000, expected range: 0.0000 975.8567
JAPANESE WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : missing
1 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 0.0000 551.8599
Severe: obs_number=0.0000, expected range: 0.0000 551.8599
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 48870 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_fgdepar=21.5391, expected range: -5.2731 17.4607
Severe: rms_fgdepar=21.5391, expected range: 0.0000 17.2266
LAND PILOT WIND VECTOR DIFF (M/S) 48870 (2 pressure layers affected) : out of range
Severe: avg_pge=0.8591, expected range: -0.6918 0.7500
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 17880 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=515.2135, expected range: 0.0000 1109.2028
Severely_persistent: avg_pge=0.8184, expected range: -0.2574 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71588 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=509.9314, expected range: 402.1994 587.0891
AUTOMATIC LAND SYNOP RH2M (%) 68471 : out of range
Severe: rms_fgdepar=36.4004, expected range: 0.0000 20.7198
AUTOMATIC LAND SYNOP RH2M (%) 35391 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=58.9221, expected range: -67.6459 110.0227
Severe: rms_fgdepar=58.9221, expected range: 0.0000 110.0227
Severe: avg_pge=0.9787, expected range: -2.0104 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83522 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8000, expected range: 0.5589 0.7500
BUFR LAND SYNOP RH2M (%) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=1776.0000, expected range: 1334.3418 1396.9916
Considerable: obs_number=1419.0000, expected range: 1067.2759 1154.9463
Slight: obs_number=8787.0000, expected range: 9209.1055 10000.5195
Slight: obs_number=56167.0000, expected range: 94690.6390 109255.4860
BUFR LAND SYNOP RH2M (%) 64601 : out of range
Severe: rms_fgdepar=47.1329, expected range: 0.0000 9.7487
Severe: avg_pge=0.9994, expected range: 0.0015 0.0038
BUFR LAND SYNOP RH2M (%) 42851 : out of range
Severe: rms_fgdepar=37.8590, expected range: 0.0000 19.8088
Severe: avg_pge=0.9991, expected range: -0.0060 0.0132
BUFR LAND SYNOP RH2M (%) _17040E1 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9141, expected range: -1.8573 0.7500
BUFR LAND SYNOP RH2M (%) 35294 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=35.0345, expected range: 0.0000 17.8952
BUFR LAND SYNOP RH2M (%) 62306 : out of range
Severe: rms_fgdepar=33.2783, expected range: 0.0000 13.2052
BUFR LAND SYNOP RH2M (%) 94636 : out of range
Severe: rms_fgdepar=45.0149, expected range: 0.0000 26.2802
Severe: avg_pge=0.9739, expected range: -0.0057 0.0144
BUFR LAND SYNOP RH2M (%) 95627 : out of range
Severe: rms_fgdepar=41.1144, expected range: 0.0000 33.9067
Severe: avg_pge=0.9529, expected range: -0.0278 0.0475
BUFR LAND SYNOP RH2M (%) 36397 : out of range
Severe: rms_fgdepar=42.6095, expected range: 0.0000 16.2953
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=490.0000, expected range: 294.4805 316.5195
BUFR LAND SYNOP SURFACE PRESSURE (PA) 72211 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=537.0223, expected range: -169.3830 -72.2805
Severe: rms_fgdepar=549.7068, expected range: 77.4899 169.3081
BUFR LAND SYNOP SURFACE PRESSURE (PA) 60545 : out of range
Severe: rms_fgdepar=682.9574, expected range: 0.0000 85.2196
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) YBBQ2 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=792.0265, expected range: 353.5635 1207.4265
Severely_persistent: rms_fgdepar=793.8424, expected range: 314.1976 1261.0998
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VABC : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=547.3045, expected range: -2047.6937 2841.3401
Severely_persistent: rms_fgdepar=547.3264, expected range: 0.0000 2022.4633
Severely_persistent: avg_pge=0.8136, expected range: -0.5756 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) 63059 : out of range
Severe: rms_fgdepar=479.1247, expected range: 0.0000 116.3481
Severe: avg_pge=0.8748, expected range: -0.2121 0.2901
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HA4612 : out of range
Severe: avg_fgdepar=831.8123, expected range: -574.8286 1065.6896
Severe: rms_fgdepar=831.8123, expected range: 0.0000 1003.9821
Severe: avg_pge=0.8853, expected range: -1.1284 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) CFK5152 : out of range
Severe: avg_fgdepar=-858.5564, expected range: -155.4404 656.1333
Severe: rms_fgdepar=957.5610, expected range: 0.0000 748.3677
Severe: avg_pge=0.8789, expected range: -0.8344 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HA5028 : out of range
Severe: avg_fgdepar=-1070.8563, expected range: -728.4675 757.8120
Severe: rms_fgdepar=1071.0544, expected range: 0.0000 813.9509
Severe: avg_pge=0.9184, expected range: -1.3303 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRSJ8 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-622.8284, expected range: -662.8887 -493.3652
Severe: rms_fgdepar=622.8284, expected range: 487.3978 656.1404
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7TN8 : out of range
Severe: avg_fgdepar=682.0948, expected range: -374.6870 476.2213
Severe: rms_fgdepar=910.4891, expected range: 0.0000 302.9987
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6WN8 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=600.4777, expected range: -1493.6423 1705.2979
Severe: rms_fgdepar=600.4777, expected range: 0.0000 1386.1534
Severe: avg_pge=0.8324, expected range: -1.2648 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRRX9 : out of range
Severe: rms_fgdepar=395.1131, expected range: 0.0000 186.2036
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WMCU : out of range
Severe: rms_fgdepar=357.5926, expected range: 0.0000 154.9708
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 4802594 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=459.1631, expected range: 0.0000 367.5428
Severely_persistent: avg_pge=0.8707, expected range: -1.0987 0.7500
MOORED BUOYS WIND VECTOR DIFF (M/S) 6100198 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=15.4684, expected range: 0.0000 11.2619
Severe: avg_pge=0.9142, expected range: -0.9757 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4401572 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=613.4802, expected range: -619.0060 659.8900
Severe: rms_fgdepar=616.7855, expected range: 0.0000 670.7504
Severe: avg_pge=0.9050, expected range: -1.1647 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4802599 : out of range
Severe: rms_fgdepar=393.1541, expected range: 0.0000 117.8219
Severe: avg_pge=0.8530, expected range: -0.1841 0.2206
metar
AUTOMATIC METAR SURFACE PRESSURE (PA) KLEE : out of range
Severe: rms_fgdepar=310.0276, expected range: 0.0000 101.7045
AUTOMATIC METAR SURFACE PRESSURE (PA) KPIE : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=435.3643, expected range: 0.0000 70.0720
AUTOMATIC METAR SURFACE PRESSURE (PA) KVDF : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=544.4894, expected range: -44.0953 109.5621
Severe: rms_fgdepar=557.9697, expected range: 0.0000 116.8101
AUTOMATIC METAR SURFACE PRESSURE (PA) KSEF : out of range
Severe: rms_fgdepar=471.7529, expected range: 0.0000 118.4454
AUTOMATIC METAR SURFACE PRESSURE (PA) KINF : out of range
Severe: rms_fgdepar=321.6656, expected range: 0.0000 107.4347
AUTOMATIC METAR SURFACE PRESSURE (PA) KSPG : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=421.9826, expected range: 10.8135 114.1326
AUTOMATIC METAR SURFACE PRESSURE (PA) KZPH : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=503.8745, expected range: -18.7431 110.0640
Severe: rms_fgdepar=518.3432, expected range: 0.0000 116.3908
AUTOMATIC METAR SURFACE PRESSURE (PA) KPCM : out of range
Severe: avg_fgdepar=636.8968, expected range: -4.2579 136.6685
Severe: rms_fgdepar=655.2148, expected range: 0.0000 146.6703
AUTOMATIC METAR SURFACE PRESSURE (PA) KISM : out of range
Severe: avg_fgdepar=511.1777, expected range: -40.7057 115.9165
Severe: rms_fgdepar=608.8769, expected range: 0.0000 131.1738
AUTOMATIC METAR SURFACE PRESSURE (PA) KSRQ : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=415.8767, expected range: 7.6579 138.8902
AUTOMATIC METAR SURFACE PRESSURE (PA) KBKV : out of range
Severe: rms_fgdepar=369.6700, expected range: 0.0000 97.9708
AUTOMATIC METAR SURFACE PRESSURE (PA) KCLW : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=399.3803, expected range: 0.0000 81.5629
AUTOMATIC METAR SURFACE PRESSURE (PA) KBOW : out of range
Severe: rms_fgdepar=384.8598, expected range: 0.0000 106.0902
snow
BUFR LAND SYNOP SNOW (CM) _MF1EB15 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-774.2120, expected range: -794.4859 -765.7538
BUFR LAND SYNOP SNOW (CM) _MF1EB15 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=774.2140, expected range: 766.0288 794.3049
BUFR LAND SYNOP SNOW (CM) _MI1F9AC : out of range
28 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=52.3333, expected range: 42.8740 62.4442
BUFR LAND SYNOP SNOW (CM) _MI1F9AC : out of range
28 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=52.3991, expected range: 44.1263 63.3724
BUFR LAND SYNOP SNOW (CM) : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-18.8368, expected range: -48.9850 -38.4062
Severe: rms_fgdepar=213.9929, expected range: 353.8918 398.7705
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71052 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.0448, expected range: -17.2204 -3.8446
Severely_persistent: rms_fgdepar=13.0683, expected range: 3.4874 17.8556
METAR 2M TEMPERATURE (K) KTLH : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.4827, expected range: -22.0651 -4.2466
Severely_persistent: rms_fgdepar=13.4827, expected range: 4.9923 21.7971
BUFR LAND SYNOP 2M TEMPERATURE (K) 71052 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-12.8840, expected range: -17.2774 -3.7006
Severely_persistent: rms_fgdepar=12.9018, expected range: 3.4421 17.7414
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 94619 : out of range
Severe: rms_fgdepar=11.6978, expected range: 0.5429 6.6350
MANUAL LAND SYNOP 2M TEMPERATURE (K) 42851 : out of range
Severe: avg_fgdepar=12.2726, expected range: 0.0023 4.2080
Severe: rms_fgdepar=12.2726, expected range: 0.0000 4.5270
MANUAL LAND SYNOP 2M TEMPERATURE (K) 62476 : out of range
Severe: avg_fgdepar=-19.8080, expected range: -4.4872 4.8213
Severe: rms_fgdepar=19.8080, expected range: 0.0408 3.6337
Severe: avg_est_pge=0.8083, expected range: -0.0824 0.1402
MANUAL LAND SYNOP 2M TEMPERATURE (K) 94619 : out of range
Severe: rms_fgdepar=12.2411, expected range: 0.0000 7.3809
METAR 2M TEMPERATURE (K) KSKF : out of range
Severe: avg_fgdepar=-18.2553, expected range: -3.0947 2.2838
Severe: rms_fgdepar=18.2553, expected range: 0.1091 3.1867
METAR 2M TEMPERATURE (K) MSSS : out of range
Severe: rms_fgdepar=12.7519, expected range: 0.1787 6.1088
BUFR LAND SYNOP 2M TEMPERATURE (K) 42851 : out of range
Severe: avg_fgdepar=12.2182, expected range: -0.0255 4.1355
Severe: rms_fgdepar=12.2182, expected range: 0.0000 4.5000
BUFR LAND SYNOP 2M TEMPERATURE (K) 62476 : out of range
Severe: avg_fgdepar=-19.8592, expected range: -4.5302 4.8365
Severe: rms_fgdepar=19.8592, expected range: 0.0758 3.6016
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=73686.0000, expected range: 142819.2282 150651.2718
Slight: obs_number=12337.0000, expected range: 12978.3330 13474.0420