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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-06-26 00:00

amsua
METOP-B AMSUA ALL SKY RADIANCES CHANNEL 13 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1368, expected range: 0.1615 0.1866
METOP-C AMSUA ALL SKY RADIANCES CHANNEL 13 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.4070, expected range: -0.3521 -0.3054
ssmis
DMSP-17 SSMIS RADIANCES CHANNEL 7 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: stdev_norm_fgdepar=0.0051, expected range: 0.0042 0.0047
gpsro
METOP-C GRAS RISING HEIGHT 44-46 KM : out of range
Considerable: stdev_norm_fgdepar=0.7339, expected range: 0.1262 0.5003
METOP-C GRAS RISING HEIGHT 46-48 KM : out of range
Considerable: stdev_norm_fgdepar=0.7118, expected range: 0.1069 0.4645
COSMIC2-E5 GPSRO SETTING (24 impact heights affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=251.0000, expected range: 1571.7148 2884.0352
Geostationary CSR
HIMAWARI-8 AHI RADIANCES CHANNEL 3 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1641, expected range: 0.0315 0.0597
Radiosondes
LAND TEMP Q (G/KG) 38341 PRESSURE LAYER 900-1200 (HPA) : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=8.8600, expected range: -1.8862 11.6791
Severely_persistent: rms_fgdepar=8.9374, expected range: 0.0000 11.6151
HIGH RESO LAND TEMP TEMPERATURE (K) 51656 PRESSURE LAYER 900-1200 (HPA : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8453, expected range: -0.0873 0.7500
LAND TEMP Q (G/KG) 47104 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.5289, expected range: 0.0000 1.3768
LAND TEMP Q (G/KG) 36003 PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=9.1449, expected range: -1.7649 8.0457
Severe: rms_fgdepar=9.1986, expected range: 0.0000 8.0343
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 300-600 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=1.2093, expected range: 0.1317 0.5527
HIGH RESO LAND TEMP Q (G/KG) 91765 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=2.2221, expected range: 0.0000 1.1951
HIGH RESO LAND TEMP Q (G/KG) 72305 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.5795, expected range: 0.1606 2.0956
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=190.0000, expected range: 271.2406 288.5094
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 71945 PRESSURE LAYER 0-300 : out of range
Severe: avg_fgdepar=23.2488, expected range: 1.4590 2.9909
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 71945 (3 pressure layers af : out of range
Severe: rms_fgdepar=23.3052, expected range: 1.2280 3.8260
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 71945 (2 pressure layers af : out of range
Severe: avg_pge=0.8675, expected range: -0.0605 0.1161
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 04270 PRESSURE LAYER 900-12 : out of range
Severe: rms_fgdepar=17.1974, expected range: 0.2791 5.6617
Severe: avg_pge=0.8641, expected range: -0.5831 0.7500
amdar
TAMDAR TEMPERATURE (K) PRESSURE LAYER 900-1200 (HPA) : missing
Severe: obs_number=0.0000, expected range: 0.0000 294.5243
All TAMDAR TEMPERATURE (K) ALL LAYERS Alantic Tropical are : all data missing
Severe: obs_number=0, expected range: 0.00 254.21
WIGOS AMDAR TEMPERATURE (K) 4W1UISJA PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=6.5427, expected range: 0.0000 1.6250
ADS-C WIND VECTOR DIFF (M/S) ILOI5LJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=18.0296, expected range: 0.0000 7.1077
ADS-C WIND VECTOR DIFF (M/S) A2PYCKZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=23.2821, expected range: 1.9159 6.1028
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 68918 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8866, expected range: -0.4747 0.7500
MANUAL LAND SYNOP RH2M (%) 62120 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9781, expected range: -0.5046 0.5880
BUFR LAND SYNOP RH2M (%) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: obs_number=99.0000, expected range: 4.0918 8.3082
BUFR LAND SYNOP RH2M (%) 64040 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-50.9795, expected range: -61.0676 -34.6547
Severely_persistent: rms_fgdepar=50.9795, expected range: 34.6547 61.0676
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41573 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=787.7286, expected range: 610.3175 1113.7629
Severely_persistent: rms_fgdepar=787.8065, expected range: 610.7302 1117.3977
BUFR LAND SYNOP SURFACE PRESSURE (PA) 43309 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=522.0997, expected range: -554.2167 658.3000
Severely_persistent: rms_fgdepar=522.0997, expected range: -399.3720 580.3048
Severely_persistent: avg_pge=0.8808, expected range: -1.3073 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 68651 : out of range
Severe: avg_fgdepar=54.6640, expected range: -48.2342 65.8405
Severe: rms_fgdepar=54.6640, expected range: 0.0000 60.9470
Severe: avg_pge=0.9653, expected range: -0.1028 0.1322
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 47130 : out of range
Severe: rms_fgdepar=361.4209, expected range: 0.0000 132.0112
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 47105 : out of range
Severe: rms_fgdepar=370.9389, expected range: 0.0000 141.4091
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 47106 : out of range
Severe: rms_fgdepar=365.8986, expected range: 0.0000 115.0172
MANUAL LAND SYNOP RH2M (%) 67250 : out of range
Severe: rms_fgdepar=44.1620, expected range: 0.0000 20.3131
Severe: avg_pge=0.8992, expected range: 0.0014 0.0042
MANUAL LAND SYNOP RH2M (%) 17350 : out of range
Severe: rms_fgdepar=49.2454, expected range: 0.0000 35.3051
Severe: avg_pge=0.9628, expected range: -0.1612 0.2383
MANUAL LAND SYNOP RH2M (%) 17352 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=43.4676, expected range: 1.4775 10.2231
MANUAL LAND SYNOP RH2M (%) 60767 : out of range
Severe: rms_fgdepar=43.4255, expected range: 0.0000 17.2679
Severe: avg_pge=0.9988, expected range: -0.0015 0.0093
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40664 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=1060.1356, expected range: -123.8848 130.4886
Severe: rms_fgdepar=1060.1356, expected range: 0.0000 183.1206
Severe: avg_pge=0.9406, expected range: -0.4289 0.4902
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 78486 : out of range
Severe: rms_fgdepar=470.9678, expected range: 0.0000 94.4076
MANUAL LAND SYNOP SURFACE PRESSURE (PA) : out of range
Severe: rms_fgdepar=157.8326, expected range: 30.7474 97.6389
BUFR LAND SYNOP Z (M) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=173.6028, expected range: 31.5025 109.7472
Severe: rms_fgdepar=173.6028, expected range: 31.5025 109.7472
BUFR LAND SYNOP RH2M (%) 72371 : out of range
Severe: rms_fgdepar=35.0456, expected range: 0.0000 7.6288
BUFR LAND SYNOP RH2M (%) 72462 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8737, expected range: -1.3977 0.7500
BUFR LAND SYNOP RH2M (%) 34003 : out of range
Severe: rms_fgdepar=31.0779, expected range: 0.0000 16.8928
BUFR LAND SYNOP RH2M (%) 71915 : out of range
Severe: rms_fgdepar=33.1818, expected range: 9.6249 22.2727
BUFR LAND SYNOP RH2M (%) 71936 : out of range
Severe: rms_fgdepar=39.2221, expected range: 0.0000 15.5163
BUFR LAND SYNOP RH2M (%) 22717 : out of range
Severe: rms_fgdepar=34.0307, expected range: 0.0000 17.3979
BUFR LAND SYNOP RH2M (%) 58027 : out of range
Severe: rms_fgdepar=35.2329, expected range: 0.0000 12.8952
BUFR LAND SYNOP SURFACE PRESSURE (PA) 47130 : out of range
Severe: rms_fgdepar=355.0626, expected range: 0.0000 166.9413
BUFR LAND SYNOP SURFACE PRESSURE (PA) 47090 : out of range
Severe: rms_fgdepar=353.2205, expected range: 0.0000 98.2527
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94201 : out of range
Severe: rms_fgdepar=341.6935, expected range: -55.3645 81.6181
Severe: avg_pge=0.8269, expected range: 0.0000 0.0000
BUFR LAND SYNOP SURFACE PRESSURE (PA) 64601 : out of range
Severe: rms_fgdepar=637.9282, expected range: 0.0000 148.7375
BUFR LAND SYNOP SURFACE PRESSURE (PA) 14655 : out of range
Severe: avg_fgdepar=526.9680, expected range: -97.3458 166.5461
Severe: rms_fgdepar=526.9680, expected range: 0.0000 138.3418
Severe: avg_pge=0.8694, expected range: 0.0000 0.0000
BUFR LAND SYNOP SURFACE PRESSURE (PA) 71476 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8169, expected range: 0.3845 0.7500
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9HA3182 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9009, expected range: 0.5244 0.7500
All BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) WMO BLOCK 8 : all data missing
Severely_persistent: obs_number=0, expected range: 114.82 192.72
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9VPY4 : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=652.6668, expected range: 78.2157 1441.5209
Severely_persistent: rms_fgdepar=653.2317, expected range: 76.5977 1443.6869
Severely_persistent: avg_pge=0.8483, expected range: 0.6454 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HA4777 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=556.3409, expected range: -44.3558 1350.9913
Severely_persistent: rms_fgdepar=556.3409, expected range: 0.0000 1350.9913
BUFR SHIP SYNOP SURFACE PRESSURE (PA) BAWPAEG : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=635.9590, expected range: -74.9383 1198.8171
Severely_persistent: rms_fgdepar=636.3294, expected range: 0.0000 1201.3389
All BUFR SHIP SYNOP WMO BLOCK 45 : all data missing
Severely_persistent: obs_number=0, expected range: 225.92 244.24
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HA3340 : out of range
Severe: avg_fgdepar=988.4890, expected range: -78.9990 248.0155
Severe: rms_fgdepar=988.4890, expected range: 0.0000 248.0155
Severe: avg_pge=0.8966, expected range: -0.6822 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) ZCBD3 : out of range
Severe: avg_fgdepar=613.5270, expected range: -341.2516 384.2250
Severe: rms_fgdepar=755.4307, expected range: 0.0000 309.4386
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 2200192 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9229, expected range: 0.3213 0.7500
MOORED BUOYS WIND VECTOR DIFF (M/S) 2200188 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8600, expected range: -0.9842 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5102722 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=500.0342, expected range: 0.0000 58.0257
metar
METAR SURFACE PRESSURE (PA) HTTB : out of range
Severe: rms_fgdepar=396.0333, expected range: 0.0000 108.9334
METAR SURFACE PRESSURE (PA) HKWJ : out of range
Severe: rms_fgdepar=412.4252, expected range: 0.0000 156.0442
METAR SURFACE PRESSURE (PA) OICS : out of range
Severe: rms_fgdepar=303.5981, expected range: 0.0000 146.0156
METAR SURFACE PRESSURE (PA) RKNY : out of range
Severe: rms_fgdepar=363.2742, expected range: 0.0000 111.3795
snow
BUFR LAND SYNOP SNOW (CM) _MI1BC83 : out of range
30 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=52.4000, expected range: 43.6564 67.1677
BUFR LAND SYNOP SNOW (CM) _MI1BC83 : out of range
30 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=53.8108, expected range: 45.2931 67.0751
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=-773.7148, expected range: -774.0614 -771.7104
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=773.7148, expected range: 771.7103 774.0617
BUFR LAND SYNOP SNOW (CM) _MI11588 : out of range
27 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=60.4348, expected range: 39.2817 69.1889
BUFR LAND SYNOP SNOW (CM) _MI11588 : out of range
27 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=61.5107, expected range: 40.5059 68.7537
BUFR LAND SYNOP SNOW (CM) _MI1067E : out of range
34 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=56.9000, expected range: 54.9995 64.4089
BUFR LAND SYNOP SNOW (CM) _MI1067E : out of range
34 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=58.0996, expected range: 56.1145 64.2492
BUFR LAND SYNOP SNOW (CM) 11304 : out of range
Severe: rms_fgdepar=16.0000, expected range: -2.1162 2.7828
t2m
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
24 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-18.3690, expected range: -20.7415 -15.8646
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
24 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=18.4206, expected range: 15.8710 20.7536
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89606 : out of range
Severe: avg_fgdepar=-12.3739, expected range: -10.5403 -1.1778
Severe: rms_fgdepar=12.3741, expected range: 1.4020 10.5525
METAR 2M TEMPERATURE (K) KCAK : out of range
Severe: rms_fgdepar=10.3842, expected range: 0.8644 4.5881
METAR 2M TEMPERATURE (K) SKMU : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-12.1235, expected range: -5.6995 9.2569
Severe: rms_fgdepar=12.1235, expected range: 0.0000 7.9840
BUFR LAND SYNOP 2M TEMPERATURE (K) 89606 : out of range
Severe: avg_fgdepar=-12.4177, expected range: -10.5725 -1.2270
Severe: rms_fgdepar=12.4178, expected range: 1.4500 10.5846
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 12200 : out of range
Severe: rms_fgdepar=33.5750, expected range: 4.2117 20.9834
MANUAL LAND SYNOP RH2M (%) 44347 : out of range
Severe: rms_fgdepar=32.8838, expected range: 0.0000 17.0245