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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-05-20 12:00

amsua
NOAA 15 AMSUA ALL SKY RADIANCES CHANNEL 12 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0408, expected range: -0.0735 -0.0695
METOP-B AMSUA ALL SKY RADIANCES CHANNEL 7 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.5316, expected range: -0.4798 -0.4787
iasi
METOP-C IASI RADIANCES CHANNEL 262 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0532, expected range: 0.0327 0.0407
METOP-C IASI RADIANCES CHANNEL 269 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0715, expected range: -0.0968 -0.0858
atms
NPP ATMS RADIANCES CHANNEL 19 : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1023, expected range: -0.2187 -0.1786
NPP ATMS RADIANCES CHANNEL 20 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0609, expected range: -0.0320 -0.0209
NPP ATMS RADIANCES CHANNEL 22 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.7709, expected range: 0.6599 0.6678
NPP ATMS RADIANCES CHANNEL 11 : out of range
21 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.3178, expected range: -0.2392 -0.2260
NPP ATMS RADIANCES CHANNEL 12 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.5086, expected range: -0.4307 -0.4001
NPP ATMS RADIANCES CHANNEL 13 : out of range
26 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.4845, expected range: -0.3684 -0.3029
NOAA20 ATMS RADIANCES CHANNEL 19 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.3781, expected range: -0.4739 -0.4233
NOAA20 ATMS RADIANCES CHANNEL 20 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2209, expected range: -0.3030 -0.2913
NOAA20 ATMS RADIANCES CHANNEL 22 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.5617, expected range: 0.4400 0.4639
NOAA20 ATMS RADIANCES CHANNEL 14 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1707, expected range: -0.2072 -0.2043
NOAA20 ATMS RADIANCES CHANNEL 12 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.6230, expected range: -0.5637 -0.5346
NOAA20 ATMS RADIANCES CHANNEL 13 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.6658, expected range: -0.5878 -0.4979
Radiosondes
All HIGH RESO SEA TEMP ALL LAYERS South Atlantic : all data missing
Severely_persistent: obs_number=0, expected range: 5.40 333.40
All BUFR TEMP DESCENT ALL LAYERS South Atlantic : all data missing
Severely_persistent: obs_number=0, expected range: 34.04 155.96
LAND TEMP TEMPERATURE (K) 24507 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=-9.2588, expected range: -4.1774 7.2438
Severe: rms_fgdepar=9.3758, expected range: 0.0000 4.0991
Severe: avg_pge=0.8820, expected range: -1.0447 0.7500
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=95.0000, expected range: 185.0000 195.0000
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 88 : all data missing
Severe: obs_number=0, expected range: 17.72 719.25
All HIGH RESO SEA TEMP ALL LAYERS Tropics : all data missing
Severe: obs_number=0, expected range: 71.13 340.15
All HIGH RESO SEA TEMP ALL LAYERS Alantic Tropical are : all data missing
Severe: obs_number=0, expected range: 71.13 340.15
All BUFR TEMP DESCENT ALL LAYERS North Atlantic : all data missing
Severe: obs_number=0, expected range: 0.00 309.31
All BUFR TEMP DESCENT ALL LAYERS Tropics : all data missing
Severe: obs_number=0, expected range: 67.28 119.72
All BUFR TEMP DESCENT ALL LAYERS Alantic Tropical are : all data missing
Severe: obs_number=0, expected range: 67.28 119.72
HIGH RESO LAND TEMP TEMPERATURE (K) (3 pressure layers affected) : out of range
Considerable: obs_number=779.0000, expected range: 565.7433 643.0067
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: obs_number=57.0000, expected range: 117.3961 164.6039
Considerable: obs_number=65.0000, expected range: 118.8120 197.6880
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 900-1200 (HPA) : out of range
Considerable: obs_number=134.0000, expected range: 86.2858 111.2142
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
Considerable: obs_number=70.0000, expected range: 79.5239 91.4761
amdar
WIGOS AMDAR TEMPERATURE (K) KICUDIRA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.9776, expected range: 0.0000 3.1152
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU5007 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=18.2090, expected range: 0.0000 7.7771
WIGOS AMDAR Q (G/KG) BSTXQVBA PRESSURE LAYER 900-1200 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-6.7700, expected range: -7.9487 -0.0494
Severe: rms_fgdepar=6.7758, expected range: 0.3066 8.2389
WIGOS AMDAR Q (G/KG) DVPUOFZA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=-7.0259, expected range: -5.5256 -0.7688
Severe: rms_fgdepar=7.1495, expected range: 1.0988 5.7313
MODE-S WIND VECTOR DIFF (M/S) M15E6F7 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=17.5187, expected range: 0.4414 4.8579
MODE-S WIND VECTOR DIFF (M/S) M60BE88 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=15.9653, expected range: 0.0000 8.8978
MODE-S WIND VECTOR DIFF (M/S) M8CEA6F PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=15.4256, expected range: 0.0000 5.5611
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 44232 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8397, expected range: -0.6203 0.7500
MANUAL LAND SYNOP RH2M (%) 42674 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9932, expected range: -1.1664 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 96751 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-599.4103, expected range: -702.2471 -554.8076
Severely_persistent: rms_fgdepar=600.0116, expected range: 554.3411 703.4239
BUFR LAND SYNOP SURFACE PRESSURE (PA) 97072 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-911.1525, expected range: -976.4664 -851.1813
Severely_persistent: rms_fgdepar=911.2778, expected range: 850.7066 978.6595
BUFR LAND SYNOP SURFACE PRESSURE (PA) 38344 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=521.1624, expected range: -369.4499 362.0270
Severely_persistent: rms_fgdepar=568.8976, expected range: 0.0000 436.3687
Severely_persistent: avg_pge=0.8565, expected range: -1.0668 0.7500
BUFR LAND SYNOP RH2M (%) 64040 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=1.0000, expected range: -1.6841 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43382 : out of range
Severe: rms_fgdepar=305.0339, expected range: 0.0000 149.1889
Severe: avg_pge=0.8140, expected range: -0.6174 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42403 : out of range
Severe: avg_fgdepar=674.0312, expected range: -264.6112 222.3206
Severe: rms_fgdepar=674.0312, expected range: 0.0000 215.5461
Severe: avg_pge=0.9052, expected range: -0.2843 0.3714
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 82143 : out of range
Severe: rms_fgdepar=314.1533, expected range: 0.0000 160.1192
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83235 : out of range
Severe: rms_fgdepar=491.2150, expected range: 0.0000 202.5473
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 89606 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=696.5810, expected range: 0.0000 188.8218
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 82246 : out of range
Severe: avg_fgdepar=556.2686, expected range: -232.4340 376.4072
Severe: rms_fgdepar=790.2333, expected range: 0.0000 399.0420
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83186 : out of range
Severe: avg_fgdepar=-614.3984, expected range: -201.9360 91.7684
Severe: rms_fgdepar=615.1236, expected range: 0.0000 193.3647
Severe: avg_pge=0.9050, expected range: -0.4881 0.7500
MANUAL LAND SYNOP RH2M (%) 42189 : out of range
Severe: rms_fgdepar=30.5440, expected range: 0.0000 16.7399
BUFR LAND SYNOP SURFACE PRESSURE (PA) 64040 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8332, expected range: 0.6917 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 72570 : out of range
Severe: avg_pge=0.8093, expected range: -1.7289 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 13585 : out of range
Severe: rms_fgdepar=544.4277, expected range: -276.6769 413.4466
BUFR LAND SYNOP SURFACE PRESSURE (PA) 67217 : out of range
Severe: rms_fgdepar=403.3527, expected range: 232.0324 368.9043
Severe: avg_pge=0.8136, expected range: 0.6739 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 30028 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=626.8429, expected range: -979.6935 1245.8572
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41978 : out of range
Severe: rms_fgdepar=426.5134, expected range: 0.0000 183.5476
BUFR LAND SYNOP RH2M (%) 29551 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=56.0993, expected range: -18.9515 20.6263
Severe: rms_fgdepar=56.0993, expected range: 0.0000 18.2977
Severe: avg_pge=0.9999, expected range: 0.0009 0.0048
BUFR LAND SYNOP RH2M (%) 52866 : out of range
Severe: rms_fgdepar=33.6799, expected range: 0.0000 28.7505
Severe: avg_pge=0.8103, expected range: -0.0487 0.0625
BUFR LAND SYNOP RH2M (%) 72776 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=40.0143, expected range: 0.0000 12.9553
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VRBJ9 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8958, expected range: -0.8710 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WDD6688 : out of range
Severe: rms_fgdepar=489.4785, expected range: 69.1735 393.5176
Severe: avg_pge=0.8229, expected range: 0.3234 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRBJ9 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=571.4777, expected range: -577.4905 830.5060
Severe: rms_fgdepar=571.4777, expected range: 0.0000 655.3382
Severe: avg_pge=0.8146, expected range: -0.8311 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) V7NC8 : out of range
Severe: rms_fgdepar=15.1178, expected range: 0.0000 8.2349
Severe: avg_pge=0.8811, expected range: -0.1635 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 4601592 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=501.6312, expected range: -471.4964 524.7922
Severe: rms_fgdepar=502.6813, expected range: -501.1334 728.1104
Severe: avg_pge=0.8749, expected range: -1.3352 0.7500
snow
BUFR LAND SYNOP SNOW (CM) _MI1F541 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=50.5294, expected range: 30.1149 59.7892
BUFR LAND SYNOP SNOW (CM) _MI1F541 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=51.4101, expected range: 30.8139 60.1430
BUFR LAND SYNOP SNOW (CM) 01361 : out of range
36 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=68.2640, expected range: 48.2107 75.3857
Severely_persistent: rms_fgdepar=68.2640, expected range: 48.2226 75.3821
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=-776.1952, expected range: -761.5741 -716.5715
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=776.1967, expected range: 716.5705 761.5767
BUFR LAND SYNOP SNOW (CM) _MI17AC6 : out of range
34 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=67.2899, expected range: 80.5451 113.6234
BUFR LAND SYNOP SNOW (CM) _MI17AC6 : out of range
34 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=67.3177, expected range: 80.5364 113.6663
BUFR LAND SYNOP SNOW (CM) 01008 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-92.6218, expected range: -93.4520 -87.6593
Severely_persistent: rms_fgdepar=92.6226, expected range: 87.6593 93.4526
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-12.2785, expected range: -11.4108 0.0121
Severely_persistent: rms_fgdepar=12.3148, expected range: 0.0645 11.4639
BUFR LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-12.3456, expected range: -11.5128 0.0321
Severely_persistent: rms_fgdepar=12.3803, expected range: 0.0376 11.5672
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-19.6604, expected range: -42.1189 19.2651
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=19.6604, expected range: 6.1071 24.0770
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8069, expected range: 0.5930 0.8951
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-17.1911, expected range: -22.3330 -5.2907
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
20 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=17.2895, expected range: 5.9928 21.8524
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 08541 : out of range
Severe: rms_fgdepar=10.0663, expected range: 0.0000 2.6641
METAR 2M TEMPERATURE (K) KOLV : out of range
Severe: rms_fgdepar=10.5891, expected range: 0.1107 4.7390
BUFR LAND SYNOP 2M TEMPERATURE (K) 60120 : out of range
Severe: rms_fgdepar=12.0181, expected range: 0.1518 4.4659
BUFR LAND SYNOP 2M TEMPERATURE (K) 87509 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=14.4612, expected range: -14.0570 18.3270
Severe: rms_fgdepar=14.4612, expected range: 0.0000 13.9295
rh2m
LAND TEMP RH2M (%) 72469 : out of range
Severe: rms_fgdepar=34.3753, expected range: 0.0000 17.1656