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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-10-02 00:00

iasi
METOP-B IASI RADIANCES CHANNEL 271 : out of range
1 times in the last 10 days for at least one item
Slight: stdev_fgdepar=0.2511, expected range: 0.2166 0.2476
METOP-B IASI RADIANCES CHANNEL 272 : out of range
1 times in the last 10 days for at least one item
Slight: stdev_fgdepar=0.2548, expected range: 0.2239 0.2516
atms
NPP ATMS RADIANCES CHANNEL 12 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2958, expected range: -0.2750 -0.2573
Severely_persistent: avg_biascorr=-0.2860, expected range: -0.2092 -0.1751
NPP ATMS RADIANCES CHANNEL 10 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2209, expected range: -0.1940 -0.1672
NOAA20 ATMS RADIANCES CHANNEL 12 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.3818, expected range: -0.3168 -0.3059
ssmis
DMSP-17 SSMIS RADIANCES CHANNEL 17 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-2.3805, expected range: -2.8347 -2.6872
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1-2 (HPA) : out of range
25 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-0.0117, expected range: -0.0078 -0.0039
NOAA-19 SBUV OZONE, TOP (19 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=455.0000, expected range: 506.8778 558.3722
Radiosondes
LAND TEMP TEMPERATURE (K) 40394 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9079, expected range: -1.3748 0.7500
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=4.3986, expected range: 0.6035 2.4994
LAND TEMP WIND VECTOR DIFF (M/S) 89664 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=17.8545, expected range: 0.0000 10.3250
Severe: avg_pge=0.8647, expected range: -0.9932 0.7500
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA : missing
3 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 93.8377 100.1623
BUFR TEMP DESCENT Q (G/KG) PRESSURE LAYER 900-1200 (HPA) : missing
1 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 25.1926 303.7835
LAND TEMP TEMPERATURE (K) (3 pressure layers affected) : out of range
Considerable: obs_number=70.0000, expected range: 11.0450 23.9550
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
Considerable: obs_number=436.0000, expected range: 606.5119 648.2381
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=339.0000, expected range: 413.1772 436.3228
amdar
WIGOS AMDAR TEMPERATURE (K) CNTTPK PRESSURE LAYER 300-600 (HPA) : out of range
Severe: avg_fgdepar=-9.5934, expected range: -12.3856 -2.1281
Severe: rms_fgdepar=9.5934, expected range: 2.6479 12.2368
Severe: avg_pge=0.8855, expected range: 0.6795 0.7500
WIGOS AMDAR TEMPERATURE (K) CNNKXR PRESSURE LAYER 300-600 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8109, expected range: 0.6347 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU1722 (3 pressure layers affected) : out of range
Severe: avg_fgdepar=29.0706, expected range: -25.0754 56.6404
Severe: rms_fgdepar=30.4162, expected range: 0.0000 59.2032
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU1722 (2 pressure layers affected) : out of range
Severe: avg_pge=0.8391, expected range: -0.3860 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU0747 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=17.3310, expected range: 0.0407 5.5282
WIGOS AMDAR WIND VECTOR DIFF (M/S) R5OJMQJA PRESSURE LAYER 300-600 (HP : out of range
Severe: avg_fgdepar=20.2684, expected range: -0.7022 6.2427
Severe: rms_fgdepar=20.2684, expected range: 0.0000 7.2900
WIGOS AMDAR WIND VECTOR DIFF (M/S) 4I0IR4RA PRESSURE LAYER 600-900 (HP : out of range
Severe: rms_fgdepar=18.5968, expected range: 0.0000 7.0476
MODE-S WIND VECTOR DIFF (M/S) MD7557F PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=20.8642, expected range: -0.3604 5.7004
Severe: rms_fgdepar=20.8642, expected range: 0.0000 6.7425
MODE-S WIND VECTOR DIFF (M/S) ME6BDA2 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=15.8753, expected range: 0.1675 4.9314
MODE-S WIND VECTOR DIFF (M/S) M14291D PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=15.8107, expected range: 0.0000 5.4407
ADS-C WIND VECTOR DIFF (M/S) E5QFROBA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=20.3325, expected range: 0.0000 20.1102
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 96035 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=16.6336, expected range: 0.0000 7.1475
Severe: avg_pge=0.8724, expected range: -0.6999 0.7500
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 17880 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=523.7099, expected range: 115.8777 763.1925
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 68392 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-625.0230, expected range: -585.2790 410.8643
Severely_persistent: rms_fgdepar=666.1763, expected range: 0.0000 493.1599
Severely_persistent: avg_pge=0.9117, expected range: -0.7727 0.7500
MANUAL LAND SYNOP RH2M (%) 67229 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9695, expected range: -1.1666 0.7500
BUFR LAND SYNOP RH2M (%) _17040E1 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-54.2364, expected range: -96.1467 41.1667
BUFR LAND SYNOP RH2M (%) _17040E1 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=55.2252, expected range: 0.0000 98.2930
BUFR LAND SYNOP RH2M (%) _17040E1 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9895, expected range: -1.8493 0.7500
BUFR LAND SYNOP RH2M (%) _170B147 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9109, expected range: -1.9222 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 68651 : out of range
Severe: rms_fgdepar=48.0080, expected range: 0.0000 37.7151
Severe: avg_pge=0.9198, expected range: -0.0284 0.0409
MANUAL LAND SYNOP RH2M (%) 63210 : out of range
Severe: rms_fgdepar=33.7693, expected range: 0.0000 28.4247
Severe: avg_pge=0.9588, expected range: -0.0909 0.1140
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 78774 : out of range
Severe: avg_fgdepar=-503.4671, expected range: -172.6400 120.0972
Severe: rms_fgdepar=702.0329, expected range: 0.0000 136.8276
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 62176 : out of range
Severe: rms_fgdepar=676.5608, expected range: 0.0000 255.3423
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 62459 : out of range
Severe: rms_fgdepar=501.9216, expected range: 0.0000 79.8733
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=103.0000, expected range: 34.4866 44.6245
BUFR LAND SYNOP RH2M (%) 15405 : out of range
Severe: rms_fgdepar=30.1584, expected range: 0.0000 15.3545
BUFR LAND SYNOP RH2M (%) 35416 : out of range
Severe: rms_fgdepar=41.0286, expected range: 0.0000 29.2082
Severe: avg_pge=0.8019, expected range: -0.0169 0.0282
BUFR LAND SYNOP RH2M (%) 44347 : out of range
Severe: rms_fgdepar=35.3600, expected range: 0.0000 16.5271
BUFR LAND SYNOP SURFACE PRESSURE (PA) 43041 : out of range
Severe: rms_fgdepar=396.9824, expected range: 33.2128 143.2776
BUFR LAND SYNOP SURFACE PRESSURE (PA) 42662 : out of range
Severe: avg_fgdepar=-620.8491, expected range: -166.1500 204.1695
Severe: rms_fgdepar=620.8491, expected range: 0.0000 113.1418
Severe: avg_pge=0.9250, expected range: 0.0000 0.0000
BUFR LAND SYNOP SURFACE PRESSURE (PA) 62305 : out of range
Severe: rms_fgdepar=386.0678, expected range: 0.0000 251.8669
Severe: avg_pge=0.8275, expected range: -0.9364 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 13625 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8725, expected range: -0.9544 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 21535 : out of range
Severe: rms_fgdepar=326.1409, expected range: 0.0000 93.4544
BUFR LAND SYNOP SURFACE PRESSURE (PA) 36736 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8429, expected range: -0.4771 0.7500
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) YBBQ2 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=827.1512, expected range: 345.5157 1238.5791
Severely_persistent: rms_fgdepar=837.9279, expected range: 324.4033 1269.5324
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6WN8 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=551.3199, expected range: -1338.4852 2049.2904
Severely_persistent: rms_fgdepar=551.3199, expected range: 0.0000 1576.4549
Severely_persistent: avg_pge=0.8205, expected range: -1.0011 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) KIAB : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=751.4037, expected range: 573.9372 755.8296
Severely_persistent: rms_fgdepar=751.4037, expected range: 573.9609 755.8770
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VABC : out of range
28 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=1266.8641, expected range: -1859.5545 2635.8598
Severely_persistent: rms_fgdepar=1281.1786, expected range: 0.0000 1858.0618
Severely_persistent: avg_pge=0.9168, expected range: -0.8164 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9V5394 : out of range
Severe: avg_fgdepar=24.8165, expected range: -33.4151 48.5242
Severe: rms_fgdepar=24.8165, expected range: -33.2432 48.7034
Severe: avg_pge=0.9374, expected range: -0.8439 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) TBWUK61 : out of range
Severe: avg_fgdepar=-992.9937, expected range: -125.1523 170.1696
Severe: rms_fgdepar=992.9937, expected range: 0.0000 139.9640
Severe: avg_pge=0.9178, expected range: -0.5730 0.6805
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V3143 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=1049.4180, expected range: 934.7900 1784.1202
Severe: rms_fgdepar=1051.2667, expected range: 934.7333 1786.5229
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRLJ4 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=1007.4598, expected range: -34.0550 2207.3923
Severe: rms_fgdepar=1046.3978, expected range: 0.0000 2215.8003
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V2005 : out of range
Severe: rms_fgdepar=347.4606, expected range: 0.0000 158.2334
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WGEB : out of range
Severe: rms_fgdepar=652.2625, expected range: 0.0000 408.6799
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WUKJN8R : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-953.1374, expected range: -558.5015 591.0672
Severe: rms_fgdepar=953.1374, expected range: -448.1323 583.3719
Severe: avg_pge=0.9074, expected range: -1.2992 0.7500
buoy
All MOORED BUOYS WMO BLOCK 22 : all data missing
Severely_persistent: obs_number=0, expected range: 108.47 168.46
DRIFTING BUOYS SURFACE PRESSURE (PA) 6203843 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8638, expected range: -1.0927 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6401588 : out of range
Severe: rms_fgdepar=454.6176, expected range: 0.0000 177.5852
Severe: avg_pge=0.8779, expected range: -0.3847 0.5694
DRIFTING BUOYS SURFACE PRESSURE (PA) 1601598 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8784, expected range: -1.1498 0.7500
metar
AUTOMATIC METAR SURFACE PRESSURE (PA) LIRK : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-830.8565, expected range: -996.0058 1202.1542
Severely_persistent: rms_fgdepar=832.1983, expected range: 0.0000 909.4925
Severely_persistent: avg_pge=0.8462, expected range: -1.0759 0.7500
METAR SURFACE PRESSURE (PA) NVVW : out of range
Severe: rms_fgdepar=335.4897, expected range: 0.0000 151.1705
snow
BUFR LAND SYNOP SNOW (CM) _MF1EB15 : out of range
36 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-792.5421, expected range: -790.0750 -766.3817
BUFR LAND SYNOP SNOW (CM) _MF1EB15 : out of range
36 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=792.5441, expected range: 766.6615 789.8710
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71652 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.8496, expected range: -17.7491 8.5405
Severely_persistent: rms_fgdepar=13.8697, expected range: 0.0000 14.7163
METAR 2M TEMPERATURE (K) KTLH : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-14.1192, expected range: -21.3241 -4.9563
Severely_persistent: rms_fgdepar=14.1192, expected range: 6.4329 20.6407
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71653 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-13.8310, expected range: -16.1540 7.8157
Severe: rms_fgdepar=14.1735, expected range: 0.0000 13.6238
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 56444 : out of range
Severe: avg_fgdepar=13.0299, expected range: -4.8606 9.1732
Severe: rms_fgdepar=13.0299, expected range: 0.0000 7.9952
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) : out of range
Severe: obs_number=1706.0000, expected range: 1936.2971 1955.8279
METAR 2M TEMPERATURE (K) MSSS : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=13.1726, expected range: 0.0000 7.1039
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI1D122 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=14.9114, expected range: -2.8400 2.4403
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI1D122 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=14.9820, expected range: 0.0000 5.2211
BUFR LAND SYNOP 2M TEMPERATURE (K) 71652 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-13.2133, expected range: -17.3289 8.0371
Severe: rms_fgdepar=13.3097, expected range: 0.0000 14.7276
BUFR LAND SYNOP 2M TEMPERATURE (K) 71653 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-13.8227, expected range: -15.7388 7.5112
Severe: rms_fgdepar=14.2174, expected range: 0.0000 13.0451
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
Severe: obs_number=9062.0000, expected range: 10105.8222 10264.9278
rh2m
AUTOMATIC LAND SYNOP RH2M (%) : out of range
Severe: obs_number=1661.0000, expected range: 1878.9972 1921.7086
MANUAL LAND SYNOP RH2M (%) 95692 : out of range
Severe: rms_fgdepar=33.8075, expected range: 0.0000 16.9902
MANUAL LAND SYNOP RH2M (%) 60105 : out of range
Severe: rms_fgdepar=38.9669, expected range: 0.0000 20.7899