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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-10-06 12:00

Radiosondes
LAND TEMP Q (G/KG) 30054 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.6154, expected range: 0.0000 1.4498
Severe: avg_pge=0.8566, expected range: -0.0031 0.0110
LAND TEMP WIND VECTOR DIFF (M/S) 50953 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.8386, expected range: 0.0000 5.4408
LAND TEMP TEMPERATURE (K) 30054 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=11.9575, expected range: 0.0000 2.5342
Severe: avg_pge=0.9014, expected range: -0.2261 0.3177
LAND TEMP TEMPERATURE (K) 24688 PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9123, expected range: -1.4006 0.7500
All HIGH RESO LAND TEMP TEMPERATURE (K) ALL LAYERS WMO BLOCK 27 : all data missing
Severe: obs_number=0, expected range: 0.00 436.91
amdar
WIGOS AMDAR TEMPERATURE (K) MZXYCOZA (3 pressure layers affected) : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8963, expected range: -1.7726 0.7500
WIGOS AMDAR TEMPERATURE (K) CVCEISJA PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=6.2100, expected range: 0.0000 1.5736
WIGOS AMDAR WIND VECTOR DIFF (M/S) XIZX1KBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_pge=0.8298, expected range: -0.6992 0.7500
WIGOS AMDAR Q (G/KG) DGNXL5RA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.9648, expected range: -1.5135 0.7500
airep
AIREP WIND VECTOR DIFF (M/S) AAL663 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.3940, expected range: 0.0000 8.2696
Severe: avg_pge=0.8052, expected range: -0.2281 0.2837
AIREP WIND VECTOR DIFF (M/S) AAL693 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=24.1261, expected range: 0.0000 9.0935
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42523 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8302, expected range: -0.8217 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 27415 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8646, expected range: -0.0486 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 78896 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9000, expected range: -1.0490 0.7500
BUFR LAND SYNOP RH2M (%) 81788 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=1.0000, expected range: -1.1770 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 89879 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=793.3228, expected range: 0.0000 343.4500
Severe: avg_pge=0.9444, expected range: -1.1982 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 68541 : out of range
Severe: rms_fgdepar=23.2053, expected range: 0.0000 5.9969
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 76220 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8740, expected range: -1.7187 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 37801 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8206, expected range: -1.0543 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42812 : out of range
Severe: rms_fgdepar=428.5206, expected range: 0.0000 340.2231
Severe: avg_pge=0.8165, expected range: -1.0831 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42143 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8470, expected range: -1.1992 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 76683 : out of range
Severe: rms_fgdepar=300.6707, expected range: 0.0000 97.1910
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83844 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=498.8581, expected range: 0.0000 390.8178
Severe: avg_pge=0.8341, expected range: -0.6093 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 37717 : out of range
Severe: rms_fgdepar=581.3131, expected range: 0.0000 228.7643
Severe: avg_pge=0.8724, expected range: -0.4330 0.5748
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 37897 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=547.6768, expected range: 0.0000 327.1115
Severe: avg_pge=0.8625, expected range: -0.7052 0.7500
MANUAL LAND SYNOP RH2M (%) 76040 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9994, expected range: -1.3233 0.7500
MANUAL LAND SYNOP RH2M (%) 17280 : out of range
Severe: rms_fgdepar=19.5367, expected range: 0.0000 8.1636
MANUAL LAND SYNOP RH2M (%) 76113 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=52.3536, expected range: 0.0000 44.8192
Severe: avg_pge=0.9997, expected range: -1.1508 0.7500
MANUAL LAND SYNOP RH2M (%) 62014 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9840, expected range: -1.0377 0.7500
MANUAL LAND SYNOP RH2M (%) 42174 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9985, expected range: -1.3884 0.7500
MANUAL LAND SYNOP RH2M (%) 43355 : out of range
Severe: avg_pge=0.9680, expected range: -0.7918 0.7500
MANUAL LAND SYNOP RH2M (%) 42876 : out of range
Severe: avg_pge=0.9714, expected range: -0.0222 0.0350
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94866 : out of range
Severe: rms_fgdepar=447.5768, expected range: 0.0000 85.7312
Severe: avg_pge=0.8969, expected range: -0.1341 0.1609
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48037 : out of range
Severe: avg_pge=0.8386, expected range: -1.0425 0.7500
BUFR LAND SYNOP RH2M (%) 95774 : out of range
Severe: avg_pge=0.8145, expected range: -0.0079 0.0157
BUFR LAND SYNOP RH2M (%) 94776 : out of range
Severe: rms_fgdepar=42.8598, expected range: 0.0000 34.1023
Severe: avg_pge=0.9942, expected range: -0.0054 0.0135
ship
SHIP SURFACE PRESSURE (PA) 9V9450 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8523, expected range: -0.9425 0.7500
SHIP SURFACE PRESSURE (PA) OXSQ2 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8180, expected range: -1.3174 0.7500
AUTOMATIC SHIP SURFACE PRESSURE (PA) EUCDE22 : out of range
Severe: rms_fgdepar=302.8389, expected range: 0.0000 188.5099
Severe: avg_pge=0.8143, expected range: -0.3324 0.4880
SHIP SURFACE PRESSURE (PA) VRDJ3 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8586, expected range: -1.0769 0.7500
SHIP SURFACE PRESSURE (PA) ZCDD6 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8609, expected range: -1.2732 0.7500
SHIP SURFACE PRESSURE (PA) WFLH : out of range
Severe: avg_pge=0.8139, expected range: -0.2000 0.7500
SHIP WIND VECTOR DIFF (M/S) WDG8555 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=17.3920, expected range: 0.0000 11.7991
Severe: avg_pge=0.9116, expected range: -1.1112 0.7500
SHIP WIND VECTOR DIFF (M/S) VRGE7 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=15.4950, expected range: 0.0000 13.4570
Severe: avg_pge=0.9092, expected range: -0.2660 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) EUCDE22 : out of range
Severe: rms_fgdepar=303.1467, expected range: 0.0000 189.7057
Severe: avg_pge=0.8145, expected range: -0.3489 0.5099
buoy
DRIBU WIND VECTOR DIFF (M/S) 53056 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9289, expected range: 0.7167 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1701536 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9221, expected range: 0.5372 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5201700 : out of range
Severe: rms_fgdepar=333.1100, expected range: 0.0000 131.0538
DRIFTING BUOYS SURFACE PRESSURE (PA) 4601633 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8798, expected range: -1.1071 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 7401507 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8358, expected range: -0.3879 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1701529 : out of range
Severe: rms_fgdepar=346.9239, expected range: 0.0000 124.6516
DRIFTING BUOYS SURFACE PRESSURE (PA) 4801649 : out of range
Severe: rms_fgdepar=338.4017, expected range: 0.0000 92.8158
metar
METAR SURFACE PRESSURE (PA) BIHN : out of range
Severe: rms_fgdepar=489.2083, expected range: 0.0000 253.8018
snow
AUTOMATIC LAND SYNOP SNOW (CM) : out of range
9 times in the last 10 days for at least one item
Severely_persistent: obs_number=595.0000, expected range: 255.3698 347.8194
BUFR LAND SYNOP SNOW (CM) : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-0.1364, expected range: -0.0406 0.0478
Severely_persistent: avg_fgdepar=-0.0125, expected range: -0.0003 0.0003
Severely_persistent: rms_fgdepar=0.0270, expected range: -0.0010 0.0011
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8211, expected range: 0.6304 0.9513
BUFR LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8279, expected range: 0.6316 0.9531
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 68558 : out of range
Severe: rms_fgdepar=7.3216, expected range: 0.0000 3.3418
MANUAL LAND SYNOP 2M TEMPERATURE (K) 25151 : out of range
Severe: rms_fgdepar=8.5275, expected range: 0.0000 2.5608
MANUAL LAND SYNOP 2M TEMPERATURE (K) 28722 : out of range
Severe: rms_fgdepar=7.6633, expected range: 0.0000 3.2539
MANUAL LAND SYNOP 2M TEMPERATURE (K) 28434 : out of range
Severe: rms_fgdepar=7.2836, expected range: 0.0000 4.1317
MANUAL LAND SYNOP 2M TEMPERATURE (K) 83384 : out of range
Severe: rms_fgdepar=7.4200, expected range: 0.0000 3.8917
MANUAL LAND SYNOP 2M TEMPERATURE (K) 24688 : out of range
Severe: rms_fgdepar=10.2666, expected range: 0.0000 5.6666
METAR 2M TEMPERATURE (K) KSLI : out of range
Severe: rms_fgdepar=8.3673, expected range: 0.0000 3.7695
METAR 2M TEMPERATURE (K) KCHS : out of range
Severe: rms_fgdepar=7.2218, expected range: 0.1389 4.0860
LAND TEMP 2M TEMPERATURE (K) 72501 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8153, expected range: -0.5884 1.2454
LAND TEMP 2M TEMPERATURE (K) 29634 : out of range
Severe: rms_fgdepar=8.1461, expected range: 0.0000 4.5598
LAND TEMP 2M TEMPERATURE (K) 72376 : out of range
2 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8697, expected range: -0.3512 1.2079
BUFR LAND SYNOP 2M TEMPERATURE (K) 61701 : out of range
Severe: rms_fgdepar=9.1052, expected range: 0.0000 3.7562
BUFR LAND SYNOP 2M TEMPERATURE (K) 60192 : out of range
Severe: rms_fgdepar=7.2019, expected range: 0.0000 3.6476
BUFR LAND SYNOP 2M TEMPERATURE (K) 27415 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8010, expected range: 0.4620 0.9679
rh2m
MANUAL LAND SYNOP RH2M (%) : out of range
Severe: obs_number=181.0000, expected range: 127.1249 148.7640