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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-06-24 12:00

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=0.1099, expected range: 0.1615 0.1892
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=-0.3944, expected range: -0.3521 -0.3080
iasi
METOP-B IASI RADIANCES CHANNEL 2958 : out of range
Considerable: obs_number=342.0000, expected range: 99.2894 219.4945
METOP-C IASI RADIANCES CHANNEL 2889 : out of range
Considerable: obs_number=280.0000, expected range: 76.0504 173.7813
METOP-C IASI RADIANCES CHANNEL 2907 : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=461.0000, expected range: 114.4854 275.3543
METOP-C IASI RADIANCES CHANNEL 2944 : out of range
Considerable: obs_number=274.0000, expected range: 74.9530 173.4384
METOP-C IASI RADIANCES CHANNEL 2958 : out of range
Considerable: obs_number=348.0000, expected range: 99.9662 204.8152
ssmis
DMSP-17 SSMIS RADIANCES CHANNEL 7 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: stdev_norm_fgdepar=0.0050, expected range: 0.0043 0.0047
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=0.1842, expected range: -0.0321 0.0597
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 20-21 (HPA) : Analysis misfit
Severe: stdev_fgdepar=0.0080, expected range: 0.0069 0.0099
Radiosondes
LAND TEMP Q (G/KG) 35700 PRESSURE LAYER 900-1200 (HPA) : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=6.0764, expected range: -1.6212 11.6103
Severely_persistent: rms_fgdepar=6.3308, expected range: 0.0000 11.5587
LAND TEMP Q (G/KG) PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=2.6202, expected range: 1.2146 1.8309
Severe: avg_fgdepar=-1.9145, expected range: -0.2577 0.9779
Severe: rms_fgdepar=3.6663, expected range: 0.6230 2.1050
Considerable: avg_fgdepar=-2.2208, expected range: -0.6133 1.7852
Slight: rms_fgdepar=2.2417, expected range: 1.2364 1.9959
LAND TEMP TEMPERATURE (K) 30054 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=6.4413, expected range: 0.0000 2.0012
LAND TEMP TEMPERATURE (K) 76526 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=6.3224, expected range: 0.0000 2.3369
LAND TEMP TEMPERATURE (K) 72747 PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-9.8310, expected range: -3.3537 4.1440
Severe: rms_fgdepar=9.8450, expected range: 0.0000 3.6382
Severe: avg_pge=0.8694, expected range: -0.4765 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 29634 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.7730, expected range: 0.1705 5.9816
LAND TEMP WIND VECTOR DIFF (M/S) 74626 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=20.9234, expected range: -2.8849 8.1768
Severe: rms_fgdepar=20.9234, expected range: 0.0000 8.1768
Severe: avg_pge=0.8124, expected range: -1.1104 0.7500
HIGH RESO LAND TEMP Q (G/KG) 14240 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.1191, expected range: 0.5190 1.3841
HIGH RESO LAND TEMP Q (G/KG) 54161 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.6260, expected range: 0.0135 1.2908
All HIGH RESO SEA TEMP ALL LAYERS North East Pacific : all data missing
Severe: obs_number=0, expected range: 0.00 503.00
HIGH RESO LAND TEMP TEMPERATURE (K) (3 pressure layers affected) : out of range
Considerable: obs_number=50.0000, expected range: 82.2024 90.0198
amdar
AMDAR TEMPERATURE (K) JP9Z4UYZ PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_pge=0.8753, expected range: -1.5993 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU1101 (2 pressure layers affected) : out of range
Severe: rms_fgdepar=20.6539, expected range: 0.0000 11.4466
WIGOS AMDAR WIND VECTOR DIFF (M/S) HPVWUWBA PRESSURE LAYER 900-1200 (H : out of range
Severe: rms_fgdepar=19.3832, expected range: 0.0000 8.2033
WIGOS AMDAR Q (G/KG) GRBWUUZA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=-6.2886, expected range: -10.9793 6.0030
Severe: rms_fgdepar=6.3515, expected range: 0.0000 9.6030
MODE-S WIND VECTOR DIFF (M/S) M4A8687 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=25.3518, expected range: -3.4106 8.7491
Severe: rms_fgdepar=25.4476, expected range: 0.0000 9.4794
MODE-S WIND VECTOR DIFF (M/S) MD5B45D PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.3560, expected range: 0.0000 8.7001
MODE-S WIND VECTOR DIFF (M/S) M1E5ACC PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=16.5917, expected range: 0.0000 8.8491
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA) : missing
1 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 0.0000 722.9378
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40627 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=696.9376, expected range: -386.6264 1274.9617
Severely_persistent: rms_fgdepar=696.9376, expected range: 0.0000 1274.9617
Severely_persistent: avg_pge=0.9091, expected range: 0.0766 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 76519 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=750.9961, expected range: -2096.7126 2912.8839
Severely_persistent: rms_fgdepar=750.9961, expected range: 0.0000 2603.0161
Severely_persistent: avg_pge=0.8959, expected range: -1.1192 0.7500
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=985.3107, expected range: 354.0217 1281.4833
Severely_persistent: rms_fgdepar=985.5136, expected range: 357.5035 1279.3278
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 68918 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8694, expected range: -0.8797 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 47639 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=496.7921, expected range: 0.0000 342.6153
Severe: avg_pge=0.8469, expected range: -1.1748 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 17956 : out of range
Severe: rms_fgdepar=35.4232, expected range: 0.0000 18.5789
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40634 : out of range
Severe: avg_pge=0.8094, expected range: -0.9706 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 98325 : out of range
Severe: rms_fgdepar=540.7311, expected range: 0.0000 261.3999
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40629 : out of range
Severe: rms_fgdepar=437.0144, expected range: 0.0000 355.1803
Severe: avg_pge=0.8521, expected range: -0.9907 0.7500
MANUAL LAND SYNOP RH2M (%) 42661 : out of range
Severe: rms_fgdepar=38.0022, expected range: 0.0000 23.1331
Severe: avg_pge=0.9920, expected range: -0.1409 0.1693
MANUAL LAND SYNOP RH2M (%) 42262 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=45.7472, expected range: 0.0000 37.0919
Severe: avg_pge=0.9995, expected range: -1.8799 0.7500
MANUAL LAND SYNOP RH2M (%) 72785 : out of range
Severe: rms_fgdepar=41.3427, expected range: 0.0000 20.2073
MANUAL LAND SYNOP RH2M (%) 42026 : out of range
Severe: rms_fgdepar=44.4023, expected range: 0.0000 28.7568
Severe: avg_pge=0.9893, expected range: -0.0288 0.0400
MANUAL LAND SYNOP RH2M (%) 42748 : out of range
Severe: rms_fgdepar=30.5175, expected range: 0.0000 15.2156
MANUAL LAND SYNOP RH2M (%) 83319 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8993, expected range: -1.4749 0.7500
MANUAL LAND SYNOP RH2M (%) 42249 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=41.8825, expected range: 0.0000 28.9566
Severe: avg_pge=0.9997, expected range: -0.0243 0.0363
MANUAL LAND SYNOP Z (M) 38856 : out of range
Severe: avg_pge=0.9867, expected range: -0.0090 0.0158
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48462 : out of range
Severe: rms_fgdepar=426.4513, expected range: 0.0000 144.2059
BUFR LAND SYNOP RH2M (%) 71570 : out of range
Severe: rms_fgdepar=38.5257, expected range: 0.0000 21.6970
BUFR LAND SYNOP RH2M (%) 04162 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-58.0202, expected range: -15.1340 27.9672
Severe: rms_fgdepar=58.0339, expected range: 0.0000 70.2687
Severe: avg_pge=0.9962, expected range: -0.7182 0.7500
BUFR LAND SYNOP RH2M (%) 51777 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9998, expected range: -1.5022 0.7500
ship
SHIP WIND VECTOR DIFF (M/S) : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9427, expected range: -0.5093 0.7500
SHIP WIND VECTOR DIFF (M/S) VRKX7 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=26.0400, expected range: -23.4463 58.7148
Severely_persistent: rms_fgdepar=26.0400, expected range: 0.0000 58.8052
Severely_persistent: avg_pge=0.9427, expected range: -0.5093 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9HA3182 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8898, expected range: 0.4968 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) BAWPAEG : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=748.4507, expected range: -87.0924 1131.2136
Severely_persistent: rms_fgdepar=751.8611, expected range: 0.0000 1130.9815
All BUFR SHIP SYNOP WMO BLOCK 45 : all data missing
Severely_persistent: obs_number=0, expected range: 224.21 244.86
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VRPT5 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8917, expected range: -0.8748 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VRRH6 : out of range
Severe: avg_fgdepar=31.3855, expected range: -4.9193 13.7313
Severe: rms_fgdepar=31.3855, expected range: 0.0000 14.5373
Severe: avg_pge=0.9438, expected range: -0.8791 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 7JFI : out of range
Severe: avg_fgdepar=23.3801, expected range: -8.2440 15.1141
Severe: rms_fgdepar=23.3801, expected range: 0.0000 15.2106
Severe: avg_pge=0.9256, expected range: -1.4105 0.7500
All BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) WMO BLOCK 8 : all data missing
Severe: obs_number=0, expected range: 123.89 179.97
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HA3062 : out of range
Severe: avg_pge=0.8290, expected range: -1.5811 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) D5VV2 : out of range
Severe: avg_fgdepar=775.2636, expected range: -1151.6943 1009.5758
Severe: rms_fgdepar=948.1343, expected range: -1110.7265 1597.4878
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 6201065 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=523.7731, expected range: 0.0000 593.0028
Severe: avg_pge=0.8610, expected range: -0.9499 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) TBWUK68 : out of range
Severe: rms_fgdepar=410.9668, expected range: 0.0000 193.2528
BUFR SHIP SYNOP SURFACE PRESSURE (PA) CQOL : out of range
Severe: avg_fgdepar=1489.7395, expected range: -683.8606 1111.5846
Severe: rms_fgdepar=1489.7395, expected range: 0.0000 1023.4678
Severe: avg_pge=0.9322, expected range: -1.2955 0.7500
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 2200192 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9063, expected range: 0.3212 0.7500
MOORED BUOYS SURFACE PRESSURE (PA) 4600082 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8297, expected range: 0.6749 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5401774 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8583, expected range: -1.5761 0.7500
metar
METAR SURFACE PRESSURE (PA) SEMC : out of range
Severe: rms_fgdepar=302.9509, expected range: 0.0000 147.6360
METAR SURFACE PRESSURE (PA) DAUL : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=347.6500, expected range: 0.0000 140.5422
METAR SURFACE PRESSURE (PA) UWOR : out of range
Severe: rms_fgdepar=330.7676, expected range: 0.0000 187.1512
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=58.7500, expected range: 34.7029 70.2897
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=59.3127, expected range: 35.5957 71.1300
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=-774.2892, expected range: -773.0300 -772.5504
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=774.2896, expected range: 772.5506 773.0299
BUFR LAND SYNOP SNOW (CM) _MI11588 : out of range
23 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=60.8182, expected range: 32.2362 68.5978
BUFR LAND SYNOP SNOW (CM) _MI11588 : out of range
23 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=60.9568, expected range: 33.2753 68.4076
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=59.5000, expected range: 54.4741 63.5124
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=59.8636, expected range: 55.4313 63.5961
BUFR LAND SYNOP SNOW (CM) _MF1378B : out of range
Severe: rms_fgdepar=26.1608, expected range: 3.1178 10.9441
BUFR LAND SYNOP SNOW (CM) _MI15E4D : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=50.5000, expected range: 35.7030 53.6751
BUFR LAND SYNOP SNOW (CM) _MI15E4D : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=50.6495, expected range: 36.9395 53.9157
t2m
METAR 2M TEMPERATURE (K) VECX : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=13.7756, expected range: 5.9690 15.4259
Severely_persistent: rms_fgdepar=14.0132, expected range: 5.8820 15.7507
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-17.4634, expected range: -20.0150 -17.2727
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=17.4634, expected range: 17.3562 19.9765
METAR 2M TEMPERATURE (K) SBAF : out of range
Severe: rms_fgdepar=10.9039, expected range: 0.1368 5.6750
LAND TEMP 2M TEMPERATURE (K) 61052 : out of range
Severe: rms_fgdepar=12.6721, expected range: 0.0000 13.4077