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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-08-19 00:00

cris
NPP/CRIS RADIANCES (104 channels affected) : out of range
Severe: avg_biascorr=0.3729, expected range: 0.3521 0.3705
NPP/CRIS RADIANCES (132 channels affected) : out of range
Severe: obs_number=9099.0000, expected range: 6042.5001 6066.2761
NPP/CRIS RADIANCES (26 channels affected) : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=0.2049, expected range: -0.0527 0.0714
NPP/CRIS RADIANCES (23 channels affected) : out of range
1 times in the last 10 days for at least one item
Severe: stdev_fgdepar=2.1223, expected range: 0.3586 0.5682
Geostationary CSR
GOES-15/IMAGER RADIANCES CHANNEL 2 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: obs_number=123318.0000, expected range: 16819.7165 35723.7541
GOES-15/IMAGER RADIANCES CHANNEL 3 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: obs_number=40738.0000, expected range: 3131.2489 15634.5746
Radiosondes
LAND TEMP TEMPERATURE (K) 33345 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=6.1807, expected range: 0.0000 2.2327
Severe: avg_pge=0.8379, expected range: -0.2531 0.4793
LAND TEMP WIND VECTOR DIFF (M/S) 51076 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.5516, expected range: 0.0000 5.4541
LAND TEMP WIND VECTOR DIFF (M/S) 64400 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=15.8201, expected range: 0.0000 7.4684
Severe: avg_pge=0.8773, expected range: -0.4797 0.7500
HIGH RESO LAND TEMP TEMPERATURE (K) (4 pressure layers affected) : out of range
Severe: obs_number=193.0000, expected range: 282.4306 295.1944
HIGH RESO LAND TEMP Q (G/KG) (4 pressure layers affected) : out of range
Severe: obs_number=132.0000, expected range: 191.3195 203.7917
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (3 pressure layers affected : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=501.0000, expected range: 539.9848 634.2505
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Considerable: avg_fgdepar=0.0078, expected range: -0.0029 0.0035
amdar
WIGOS AMDAR TEMPERATURE (K) PMGEIRJA (2 pressure layers affected) : out of range
7 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=5.2521, expected range: 0.0000 1.3233
WIGOS AMDAR WIND VECTOR DIFF (M/S) MX0023 PRESSURE LAYER 600-900 (HPA) : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=50.1526, expected range: 0.6570 5.8981
Severe: avg_pge=0.9439, expected range: -0.2065 0.4325
WIGOS AMDAR TEMPERATURE (K) MX0023 PRESSURE LAYER 600-900 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=14.7306, expected range: 0.0000 2.2949
Severe: avg_pge=0.9064, expected range: -0.1270 0.2123
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 06234 PRESSURE LAYER 300-600 : out of range
Severe: rms_fgdepar=20.0331, expected range: 0.0000 6.7250
Severe: avg_pge=0.8854, expected range: -0.2306 0.3711
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 64400 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=15.8995, expected range: 0.0000 7.5122
Severe: avg_pge=0.8683, expected range: -0.7939 0.7500
synop
AUTOMATIC LAND SYNOP RH2M (%) 41301 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9985, expected range: -0.8458 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: obs_number=1412.0000, expected range: 2590.8264 3051.0625
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42711 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8624, expected range: -0.3788 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42078 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8001, expected range: -0.7687 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 81870 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=701.6067, expected range: 0.0000 162.8565
Severely_persistent: avg_pge=0.9423, expected range: -0.2133 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-1.6353, expected range: -0.3360 0.6542
Slight: rms_fgdepar=70.8552, expected range: 42.5415 68.1382
AUTOMATIC LAND SYNOP RH2M (%) : out of range
6 times in the last 10 days for at least one item
Severe: obs_number=440.0000, expected range: 881.9964 1063.7813
Severely_persistent: obs_number=276.0000, expected range: 1273.7624 1814.7781
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 89542 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=447.3741, expected range: 0.0000 327.2105
Severe: avg_pge=0.8766, expected range: -0.8321 0.7500
MANUAL LAND SYNOP RH2M (%) 41712 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8614, expected range: -0.8750 0.7500
MANUAL LAND SYNOP RH2M (%) 76423 : out of range
Severe: avg_pge=0.9878, expected range: -1.6653 0.7500
MANUAL LAND SYNOP RH2M (%) 76644 : out of range
Severe: avg_pge=0.9169, expected range: -0.4508 0.5104
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 62435 : out of range
Severe: rms_fgdepar=341.7425, expected range: 0.0000 141.6724
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 60417 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8364, expected range: 0.2968 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42027 : out of range
Severe: rms_fgdepar=315.7568, expected range: 0.0000 136.5482
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42237 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=457.8885, expected range: 0.0000 248.7011
BUFR LAND SYNOP RH2M (%) 27532 : out of range
Severe: rms_fgdepar=27.1978, expected range: 0.0000 15.3450
BUFR LAND SYNOP RH2M (%) 72234 : out of range
Severe: rms_fgdepar=39.3529, expected range: 0.0000 28.3853
Severe: avg_pge=0.9849, expected range: -0.1498 0.1755
BUFR LAND SYNOP RH2M (%) 16084 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8632, expected range: -1.4926 0.7500
BUFR LAND SYNOP RH2M (%) 94318 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9941, expected range: -1.6364 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 22671 : out of range
Severe: rms_fgdepar=426.9626, expected range: 0.0000 87.4194
BUFR LAND SYNOP SURFACE PRESSURE (PA) 61995 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9306, expected range: -0.3660 0.7500
ship
AUTOMATIC SHIP WIND VECTOR DIFF (M/S) 62140 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8834, expected range: -1.3948 0.7500
SHIP SURFACE PRESSURE (PA) D5KR2 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8114, expected range: -1.0474 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) LF4J : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9067, expected range: 0.0786 0.7500
SHIP WIND VECTOR DIFF (M/S) RJZUUNR : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=19.8304, expected range: 0.0000 12.8849
Severe: avg_pge=0.9160, expected range: -0.9979 0.7500
SHIP SURFACE PRESSURE (PA) S6AN5 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8699, expected range: -1.1889 0.7500
SHIP SURFACE PRESSURE (PA) 9HOB8 : out of range
Severe: rms_fgdepar=819.9103, expected range: 0.0000 566.5312
Severe: avg_pge=0.9223, expected range: -0.9254 0.7500
ABBREVIATED SHIP SURFACE PRESSURE (PA) V7PQ5 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8467, expected range: -0.6639 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 1400511 : out of range
Severe: rms_fgdepar=339.2847, expected range: 0.0000 247.5226
Severe: avg_pge=0.8059, expected range: -0.3575 0.6610
metar
AUTOMATIC METAR SURFACE PRESSURE (PA) : out of range
Severe: avg_biascorr=0.0000, expected range: -158.0803 -75.7113
AUTOMATIC METAR SURFACE PRESSURE (PA) KHYS : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=624.0218, expected range: 0.0000 296.0284
snow
BUFR LAND SYNOP SNOW (CM) : out of range
Severe: rms_fgdepar=0.0293, expected range: 46.1588 106.4748
Slight: avg_fgdepar=0.0002, expected range: -3.3312 -0.3266
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02791 : out of range
Severe: rms_fgdepar=7.2987, expected range: 0.0000 3.7259
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89004 : out of range
Severe: rms_fgdepar=14.0164, expected range: 0.0000 5.2286
Severe: avg_est_pge=0.8412, expected range: -0.3216 0.6194
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 60015 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.1501, expected range: 0.0000 3.2772
MANUAL LAND SYNOP 2M TEMPERATURE (K) 61600 : out of range
Severe: rms_fgdepar=8.5007, expected range: 0.0000 2.6465
MANUAL LAND SYNOP 2M TEMPERATURE (K) 72432 : out of range
Severe: rms_fgdepar=8.0980, expected range: 0.0000 2.3671
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89004 : out of range
Severe: rms_fgdepar=14.7239, expected range: 0.0000 5.0026
Severe: avg_est_pge=0.8498, expected range: -0.3635 0.6307
MANUAL LAND SYNOP 2M TEMPERATURE (K) 67324 : out of range
Severe: rms_fgdepar=7.5785, expected range: 0.0000 3.2411
MANUAL LAND SYNOP 2M TEMPERATURE (K) 83054 : out of range
Severe: rms_fgdepar=8.2920, expected range: 0.0000 3.9224
MANUAL LAND SYNOP 2M TEMPERATURE (K) 60015 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.0934, expected range: 0.0000 2.4647
MANUAL LAND SYNOP 2M TEMPERATURE (K) 40265 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.6435, expected range: 0.0000 3.3898
METAR 2M TEMPERATURE (K) KRVS : out of range
Severe: rms_fgdepar=7.4427, expected range: 0.4247 4.3843
METAR 2M TEMPERATURE (K) KEVV : out of range
Severe: rms_fgdepar=8.4373, expected range: 0.9575 4.0390
LAND TEMP 2M TEMPERATURE (K) 64400 : out of range
Severe: rms_fgdepar=9.9953, expected range: 0.0000 3.2267
Severe: avg_est_pge=0.8291, expected range: -0.3128 0.5233
LAND TEMP 2M TEMPERATURE (K) 72340 : out of range
Severe: rms_fgdepar=7.6810, expected range: 0.0000 3.1664
LAND TEMP 2M TEMPERATURE (K) 30557 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8152, expected range: 0.1292 1.0966
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 08232 : out of range
Severe: rms_fgdepar=36.4309, expected range: 0.0000 19.9004