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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-08-11 00:00

airs
AQUA AIRS RADIANCES CHANNEL 1565 : out of range
Slight: avg_fgdepar=0.1235, expected range: -0.0835 0.0801
gpsro
COSMIC2-E2 GPSRO RISING HEIGHT 6-8 KM : out of range
2 times in the last 10 days for at least one item
Slight: avg_norm_fgdepar=-0.1331, expected range: -0.1010 -0.0025
Atmospheric Motion Vector
All AQUA MODIS CLEAR WV ALL LAYERS Global : all data missing
Severely_persistent: obs_number=0, expected range: 90.93 1081.28
Geostationary CSR
HIMAWARI-8 AHI RADIANCES CHANNEL 3 : out of range
Considerable: avg_biascorr=0.2102, expected range: 0.1370 0.1827
Radiosondes
LAND TEMP WIND VECTOR DIFF (M/S) 42701 PRESSURE LAYER 0-300 (HPA) : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8284, expected range: 0.2643 0.7500
All HIGH RESO LAND TEMP ALL LAYERS South pole : all data missing
Severely_persistent: obs_number=0, expected range: 67.09 460.70
LAND TEMP Q (G/KG) 36003 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_pge=0.9999, expected range: -0.1446 0.1862
LAND TEMP TEMPERATURE (K) 44373 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=13.5387, expected range: 0.0000 3.0851
LAND TEMP TEMPERATURE (K) 32389 PRESSURE LAYER 300-600 (HPA) : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=9.4097, expected range: 0.0000 2.7733
LAND TEMP TEMPERATURE (K) 98753 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.1001, expected range: 0.0000 2.2553
Severe: avg_pge=0.8947, expected range: -0.4010 0.5547
LAND TEMP TEMPERATURE (K) 72274 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=7.2086, expected range: 0.0000 5.6802
Severe: avg_pge=0.9017, expected range: -1.0724 0.7500
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=7.2803, expected range: 0.6615 2.2943
LAND TEMP WIND VECTOR DIFF (M/S) 42701 (2 pressure layers affected) : out of range
Severe: avg_fgdepar=25.5565, expected range: 0.1216 41.2782
Severe: rms_fgdepar=25.9944, expected range: 0.0000 43.6256
LAND TEMP WIND VECTOR DIFF (M/S) 89532 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=17.0388, expected range: 0.0000 7.1739
Severe: avg_pge=0.8800, expected range: -0.5139 0.7492
HIGH RESO LAND TEMP Q (G/KG) 06011 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.5812, expected range: 0.0000 1.2584
HIGH RESO LAND TEMP Q (G/KG) 46757 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=3.9399, expected range: 0.0864 2.0426
HIGH RESO LAND TEMP Q (G/KG) 12120 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=2.8274, expected range: 0.0000 1.5855
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
Severe: obs_number=182.0000, expected range: 84.8929 97.3571
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
Severe: rms_fgdepar=3.9399, expected range: 0.0864 2.0426
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_fgdepar=-3.7421, expected range: -0.6589 0.8064
Severe: rms_fgdepar=5.2517, expected range: 0.3183 1.1298
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (2 pressure layers affected : missing
Severe: obs_number=0.0000, expected range: 109.7298 142.7702
All HIGH RESO SEA TEMP ALL LAYERS North East Pacific : all data missing
Severe: obs_number=0, expected range: 18.01 358.16
amdar
AMDAR WIND VECTOR DIFF (M/S) ANZ175 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=19.2535, expected range: 0.0000 8.6317
AMDAR WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HPA) : missing
2 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 0.0000 361.3141
WIGOS AMDAR Q (G/KG) 3OXWUWJA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=-6.2875, expected range: -8.4987 2.0202
Severe: rms_fgdepar=6.3507, expected range: 0.8385 7.3551
WIGOS AMDAR WIND VECTOR DIFF (M/S) SDYDTWRA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.7507, expected range: 0.0000 8.2442
WIGOS AMDAR TEMPERATURE (K) OBUUIRZA PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=6.0338, expected range: 0.0000 1.4330
Severe: avg_pge=0.8285, expected range: -0.1609 0.1840
ADS-C WIND VECTOR DIFF (M/S) 23SZA1BA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.5404, expected range: 0.0000 7.6587
ADS-C WIND VECTOR DIFF (M/S) 0CU015BA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=17.4396, expected range: 0.6008 6.3759
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 42701 PRESSURE LAYER 0-300 (HPA) : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=20.1139, expected range: 9.1422 37.2006
Severely_persistent: rms_fgdepar=21.5038, expected range: 7.8730 39.8252
Severely_persistent: avg_pge=0.8121, expected range: 0.4675 0.7500
synop
AUTOMATIC LAND SYNOP RH2M (%) 18156 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-50.3301, expected range: -101.5672 30.4596
Severely_persistent: rms_fgdepar=50.4315, expected range: 0.0000 99.7792
BUFR LAND SYNOP SURFACE PRESSURE (PA) 91682 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8202, expected range: -0.3287 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 34254 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=562.5078, expected range: 0.0000 129.6430
Severely_persistent: avg_pge=0.8780, expected range: -0.5308 0.7143
MANUAL LAND SYNOP RH2M (%) 17191 : out of range
Severe: rms_fgdepar=43.6826, expected range: 0.0000 8.8403
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 91203 : out of range
Severe: rms_fgdepar=300.9951, expected range: 0.0000 102.0290
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 87007 : out of range
Severe: rms_fgdepar=310.4525, expected range: 0.0000 87.9058
BUFR LAND SYNOP RH2M (%) 08130 : out of range
Severe: rms_fgdepar=31.0815, expected range: 0.0000 15.6216
BUFR LAND SYNOP RH2M (%) 08140 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=41.3761, expected range: 0.0000 19.5733
BUFR LAND SYNOP RH2M (%) 81643 : out of range
Severe: rms_fgdepar=33.0863, expected range: 0.0000 27.3583
Severe: avg_pge=0.9265, expected range: -0.0332 0.0491
BUFR LAND SYNOP RH2M (%) 72263 : out of range
Severe: rms_fgdepar=34.3766, expected range: 0.0000 8.4421
BUFR LAND SYNOP RH2M (%) 72259 : out of range
Severe: rms_fgdepar=40.0264, expected range: 0.0000 14.7220
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48060 : out of range
Severe: rms_fgdepar=394.2587, expected range: 0.0000 350.8313
Severe: avg_pge=0.8460, expected range: -0.5597 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 14280 : out of range
Severe: rms_fgdepar=389.3462, expected range: 17.8925 90.0002
BUFR LAND SYNOP SURFACE PRESSURE (PA) 60522 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8235, expected range: 0.5326 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 33834 : out of range
Severe: rms_fgdepar=407.3176, expected range: 1.2633 53.3099
BUFR LAND SYNOP SURFACE PRESSURE (PA) 60507 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=373.4816, expected range: 68.3580 351.7048
Severe: avg_pge=0.8526, expected range: 0.5316 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 42837 : out of range
Severe: rms_fgdepar=366.7239, expected range: 0.0000 66.3603
Severe: avg_pge=0.8061, expected range: 0.0000 0.0000
BUFR LAND SYNOP SURFACE PRESSURE (PA) 01039 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=495.8764, expected range: 0.0000 99.4294
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) V7A4867 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8359, expected range: 0.4982 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) A8FG3 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-541.9565, expected range: -806.5266 -345.4050
Severely_persistent: rms_fgdepar=542.2291, expected range: 345.3507 806.9974
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7OJ5 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=1373.7120, expected range: 811.6561 1556.8685
Severely_persistent: rms_fgdepar=1373.7120, expected range: 811.9750 1558.9046
BUFR SHIP SYNOP SURFACE PRESSURE (PA) D5VT5 : out of range
42 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=896.7258, expected range: 379.2417 1341.9078
Severely_persistent: rms_fgdepar=896.7258, expected range: 405.3501 1320.5471
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6NR7 : out of range
25 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8524, expected range: -1.5060 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) A8FG3 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=20.7638, expected range: -14.8888 24.5716
Severe: rms_fgdepar=24.9160, expected range: 0.0000 32.6438
Severe: avg_pge=0.8261, expected range: -0.6626 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) C6BQ4 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=19.7522, expected range: 0.0000 13.5438
Severe: avg_pge=0.9077, expected range: -0.8587 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7OJ3 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-815.1731, expected range: -1737.4733 1038.3037
Severe: rms_fgdepar=815.1731, expected range: 0.0000 1746.3064
Severe: avg_pge=0.8945, expected range: -1.3943 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) MCMB8 : out of range
Severe: avg_fgdepar=-1013.0609, expected range: -496.0042 402.7297
Severe: rms_fgdepar=1013.0609, expected range: 0.0000 375.4663
Severe: avg_pge=0.9151, expected range: -0.9889 0.7500
buoy
DRIBU WIND VECTOR DIFF (M/S) : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8110, expected range: 0.1835 0.7500
Severely_persistent: avg_pge=0.8110, expected range: 0.1835 0.7500
DRIBU WIND VECTOR DIFF (M/S) 23454 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9094, expected range: 0.0207 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 4602500 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8721, expected range: -1.6090 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1501741 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8336, expected range: 0.1071 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2301740 : out of range
Severe: rms_fgdepar=420.8253, expected range: 0.0000 74.4778
DRIFTING BUOYS SURFACE PRESSURE (PA) 6204567 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-680.9117, expected range: -221.4697 178.1860
Severe: rms_fgdepar=682.8246, expected range: -300.3826 430.8443
Severe: avg_pge=0.9162, expected range: -0.6962 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6401589 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8219, expected range: -0.8946 0.7500
snow
MANUAL LAND SYNOP SNOW (CM) 37552 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=66.0000, expected range: 4.9015 98.2318
Severely_persistent: rms_fgdepar=66.0000, expected range: 7.1786 98.0497
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=-772.9020, expected range: -773.0930 -772.2809
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=772.9020, expected range: 772.2812 773.0929
t2m
BUFR LAND SYNOP 2M TEMPERATURE (K) 80010 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=12.9420, expected range: -7.0052 12.9500
Severely_persistent: rms_fgdepar=13.3190, expected range: 3.9017 14.0247
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13CBF : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=19.4383, expected range: -15.5697 24.5630
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13CBF : out of range
10 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=19.4408, expected range: -12.0665 23.8558
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13CBF : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8048, expected range: -0.5540 1.0315
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 54308 : out of range
Severe: avg_fgdepar=12.4217, expected range: 4.8894 10.5925
Severe: rms_fgdepar=12.4217, expected range: 4.8894 10.5925
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89606 : out of range
Severe: avg_fgdepar=-12.0630, expected range: -12.8488 2.1158
Severe: rms_fgdepar=12.5097, expected range: 0.0000 11.5041
MANUAL LAND SYNOP 2M TEMPERATURE (K) 28319 : out of range
Severe: rms_fgdepar=10.5022, expected range: 1.0751 4.3228
METAR 2M TEMPERATURE (K) FYOA : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=13.6212, expected range: 1.0904 10.1438
Severe: rms_fgdepar=13.6212, expected range: 1.4932 10.1006
BUFR LAND SYNOP 2M TEMPERATURE (K) 89606 : out of range
Severe: avg_fgdepar=-12.0760, expected range: -12.8790 2.0590
Severe: rms_fgdepar=12.5195, expected range: 0.0000 11.5661
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 72263 : out of range
Severe: rms_fgdepar=36.4641, expected range: 0.0000 4.5814
MANUAL LAND SYNOP RH2M (%) 72263 : out of range
Severe: rms_fgdepar=35.1876, expected range: 0.0000 7.8487
MANUAL LAND SYNOP RH2M (%) 60195 : out of range
Severe: rms_fgdepar=35.7451, expected range: 0.0000 19.1452
METAR RH2M (%) KDAL : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=30.5375, expected range: 0.8894 14.0658
METAR RH2M (%) KADS : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=31.1012, expected range: 0.0000 16.3111
METAR RH2M (%) KSJT : out of range
Severe: rms_fgdepar=32.5495, expected range: 0.0000 15.6312
METAR RH2M (%) KAFW : out of range
Severe: rms_fgdepar=33.9040, expected range: 0.3688 13.2155
BUFR LAND SYNOP RH2M (%) 63729 : out of range
Severe: rms_fgdepar=31.7634, expected range: 0.0000 14.7062