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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2020-07-07 12:00

cris
NOAA20 CRIS RADIANCES CHANNEL 173 : out of range
Considerable: stdev_fgdepar=0.1681, expected range: 0.1429 0.1595
NOAA20 CRIS RADIANCES CHANNEL 177 : out of range
Considerable: stdev_fgdepar=0.1974, expected range: 0.1650 0.1840
NOAA20 CRIS RADIANCES CHANNEL 185 : out of range
Slight: stdev_fgdepar=0.1973, expected range: 0.1669 0.1890
saphir
All MEGHA-TROPIQUES SAPHIR ALLSKY ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 110.16 16892.27
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 20-21 (HPA) : out of range
17 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=0.0154, expected range: 0.0074 0.0113
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1-2 (HPA) : out of range
12 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=0.0228, expected range: 0.0023 0.0131
Radiosondes
LAND TEMP Q (G/KG) 37259 PRESSURE LAYER 900-1200 (HPA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=6.0655, expected range: -10.7672 12.5333
Severely_persistent: rms_fgdepar=6.1481, expected range: 0.0000 11.5486
HIGH RESO SEA TEMP TEMPERATURE (K) (3 pressure layers affected) : missing
6 times in the last 10 days for at least one item
Severely_persistent: obs_number=0.0000, expected range: 6.3068 529.6932
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=5.6523, expected range: 0.9415 2.0583
Severe: rms_fgdepar=3.3968, expected range: 1.4630 1.8793
Severe: rms_fgdepar=4.5532, expected range: 1.3688 1.7236
Considerable: rms_fgdepar=3.3073, expected range: 1.3772 2.6405
LAND TEMP TEMPERATURE (K) 61660 PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-13.2964, expected range: -2.0786 1.4573
Severe: rms_fgdepar=20.0511, expected range: 0.0000 3.7203
LAND TEMP TEMPERATURE (K) 61052 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=7.3731, expected range: 0.8257 2.7821
LAND TEMP TEMPERATURE (K) 24343 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=7.5706, expected range: 0.0000 3.8419
LAND TEMP Q (G/KG) 38341 PRESSURE LAYER 900-1200 (HPA) : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=8.5435, expected range: -3.9705 12.7836
Severe: rms_fgdepar=8.5444, expected range: 0.0000 12.7779
LAND TEMP Q (G/KG) 74004 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=6.1324, expected range: -4.2202 3.1678
Severe: rms_fgdepar=6.3578, expected range: 0.0000 4.6681
LAND TEMP WIND VECTOR DIFF (M/S) 29231 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.3876, expected range: 1.1140 5.3621
Severe: avg_pge=0.8113, expected range: -0.2377 0.3154
LAND TEMP WIND VECTOR DIFF (M/S) 91376 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=17.4933, expected range: 0.0000 6.0453
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : missing
2 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 23.0563 594.8404
Severe: obs_number=0.0000, expected range: 13.0810 307.1005
HIGH RESO LAND TEMP Q (G/KG) 57447 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=4.5300, expected range: 0.0000 2.5251
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 53772 PRESSURE LAYER 0-300 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=20.6790, expected range: 0.0000 10.8558
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 56964 PRESSURE LAYER 0-300 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=16.3750, expected range: 0.0000 9.1775
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 26 : all data missing
Severe: obs_number=0, expected range: 99.45 128.95
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 83 : all data missing
Severe: obs_number=0, expected range: 43.75 335.95
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 84 : all data missing
Severe: obs_number=0, expected range: 113.94 134.56
LAND TEMP Q (G/KG) PRESSURE LAYER 300-600 (HPA) : out of range
Considerable: obs_number=2908.0000, expected range: 2389.1149 2639.8851
LAND TEMP Q (G/KG) PRESSURE LAYER 900-1200 (HPA) : out of range
Considerable: rms_fgdepar=2.6975, expected range: 0.8388 1.9353
Considerable: avg_fgdepar=3.1246, expected range: -1.9379 1.3407
Considerable: rms_fgdepar=4.4568, expected range: 0.2018 2.9424
amdar
WIGOS AMDAR WIND VECTOR DIFF (M/S) 4QE10KJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.8827, expected range: 1.3280 6.5830
synop
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 68754 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-709.6638, expected range: -1146.9484 1353.2247
Severely_persistent: rms_fgdepar=709.6769, expected range: -923.7188 1269.0386
Severely_persistent: avg_pge=0.9368, expected range: -0.9624 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43012 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8414, expected range: -0.9181 0.7500
MANUAL LAND SYNOP RH2M (%) 42776 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=1.0000, expected range: 0.0234 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48391 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=1227.9298, expected range: -2037.8918 2292.7181
Severely_persistent: rms_fgdepar=1230.0135, expected range: -1837.8761 2225.3021
Severely_persistent: avg_pge=0.9524, expected range: -1.3395 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 37308 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8466, expected range: -1.0386 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40672 : out of range
Severe: rms_fgdepar=340.2787, expected range: 0.0000 141.2980
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40634 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8651, expected range: -1.6021 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40025 : out of range
Severe: rms_fgdepar=390.7693, expected range: 0.0000 100.9297
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83526 : out of range
Severe: rms_fgdepar=678.3657, expected range: 0.0000 187.9500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42577 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8228, expected range: -1.3263 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40818 : out of range
Severe: avg_fgdepar=-656.8106, expected range: -202.6490 -40.6723
Severe: rms_fgdepar=663.6468, expected range: 11.2723 242.2543
Severe: avg_pge=0.8796, expected range: 0.0292 0.6606
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 68328 : out of range
Severe: avg_pge=0.8222, expected range: 0.7939 0.7500
MANUAL LAND SYNOP RH2M (%) 42770 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9803, expected range: -1.3966 0.7500
MANUAL LAND SYNOP RH2M (%) 36622 : out of range
Severe: rms_fgdepar=30.9675, expected range: 0.0000 14.2100
MANUAL LAND SYNOP RH2M (%) 42447 : out of range
Severe: avg_pge=0.9614, expected range: 0.0010 0.0046
MANUAL LAND SYNOP RH2M (%) 35229 : out of range
Severe: rms_fgdepar=38.2691, expected range: 0.0000 12.6157
BUFR LAND SYNOP SURFACE PRESSURE (PA) 34321 : out of range
Severe: rms_fgdepar=543.6554, expected range: 0.0000 110.7604
BUFR LAND SYNOP SURFACE PRESSURE (PA) 63624 : out of range
Severe: avg_fgdepar=585.1365, expected range: -228.5408 210.8220
Severe: rms_fgdepar=763.4910, expected range: 0.0000 188.2657
BUFR LAND SYNOP SURFACE PRESSURE (PA) 54027 : out of range
Severe: avg_fgdepar=-1139.2722, expected range: -102.1688 85.8822
Severe: rms_fgdepar=1139.7491, expected range: 0.0000 115.9614
Severe: avg_pge=0.9619, expected range: -0.2469 0.3223
BUFR LAND SYNOP SURFACE PRESSURE (PA) 30028 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=701.3819, expected range: 0.0000 164.5236
BUFR LAND SYNOP RH2M (%) 34320 : out of range
Severe: avg_pge=0.8710, expected range: -0.1388 0.1666
BUFR LAND SYNOP RH2M (%) 30650 : out of range
Severe: rms_fgdepar=47.6690, expected range: 0.0000 22.4576
Severe: avg_pge=0.8852, expected range: 0.0003 0.0057
BUFR LAND SYNOP RH2M (%) 16632 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9866, expected range: -0.7180 0.7500
BUFR LAND SYNOP RH2M (%) 29263 : out of range
Severe: rms_fgdepar=39.9682, expected range: 0.0000 24.6188
Severe: avg_pge=0.8881, expected range: -0.0119 0.0206
BUFR LAND SYNOP RH2M (%) 29059 : out of range
Severe: rms_fgdepar=32.7987, expected range: 0.0000 16.5403
BUFR LAND SYNOP Z (M) 01355 : out of range
Severe: avg_pge=0.8181, expected range: -0.0477 0.0572
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
Considerable: rms_fgdepar=183.5032, expected range: 0.0000 117.0805
ship
ABBREVIATED SHIP SURFACE PRESSURE (PA) : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-653.2625, expected range: -1069.4785 315.3058
Severely_persistent: rms_fgdepar=709.3509, expected range: 0.0000 1149.7940
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V5245 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=581.5836, expected range: 339.1241 1455.3533
Severely_persistent: rms_fgdepar=581.5836, expected range: 339.1241 1455.3533
Severely_persistent: avg_pge=0.8196, expected range: 0.8009 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7SD8 : out of range
25 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=618.0637, expected range: -90.6686 1040.0368
Severely_persistent: rms_fgdepar=618.0637, expected range: 0.0000 1037.4180
Severely_persistent: avg_pge=0.8374, expected range: -0.2884 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) OZDQ2 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=29.1993, expected range: -30.3494 64.4791
Severely_persistent: rms_fgdepar=29.1993, expected range: 0.0000 64.4791
Severely_persistent: avg_pge=0.9413, expected range: 0.1263 0.7500
SHIP SURFACE PRESSURE (PA) 9V5245 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=581.5836, expected range: 293.1835 1494.9575
Severe: rms_fgdepar=581.5836, expected range: 293.1835 1494.9575
SHIP SURFACE PRESSURE (PA) VRID6 : out of range
Severe: avg_fgdepar=511.0828, expected range: -374.7056 319.7574
Severe: rms_fgdepar=704.6605, expected range: 0.0000 274.1553
SHIP SURFACE PRESSURE (PA) D5QV7 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-504.2437, expected range: -746.3383 -253.3387
Severe: rms_fgdepar=504.9580, expected range: 29.3316 880.1099
BUFR SHIP SYNOP SURFACE PRESSURE (PA) SVCS2 : out of range
Severe: rms_fgdepar=409.0244, expected range: 0.0000 170.8320
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRID6 : out of range
Severe: rms_fgdepar=610.3063, expected range: 0.0000 200.0558
BUFR SHIP SYNOP SURFACE PRESSURE (PA) UDKG : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=734.8246, expected range: -1056.0983 1139.0492
Severe: rms_fgdepar=734.8246, expected range: 0.0000 784.6912
Severe: avg_pge=0.8640, expected range: -1.2787 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) DIDK2 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8652, expected range: -1.2896 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) A8UC5 : out of range
Severe: avg_pge=0.9007, expected range: -0.4221 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) : out of range
Considerable: obs_number=289.0000, expected range: 336.4427 383.6749
Considerable: obs_number=239.0000, expected range: 301.6924 374.1899
Considerable: obs_number=853.0000, expected range: 954.7164 1143.9894
buoy
MOORED BUOYS WIND VECTOR DIFF (M/S) 5300041 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8648, expected range: 0.5114 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1601582 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=610.7847, expected range: -558.3720 926.2151
Severely_persistent: rms_fgdepar=611.4056, expected range: 0.0000 924.4766
Severely_persistent: avg_pge=0.9039, expected range: -1.1762 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5601595 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8234, expected range: -1.1692 0.7500
MOORED BUOYS SURFACE PRESSURE (PA) : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=65.0000, expected range: 84.3182 87.4712
Considerable: obs_number=128.0000, expected range: 153.3204 161.7323
Considerable: obs_number=117.0000, expected range: 142.3204 150.7323
Considerable: obs_number=121.0000, expected range: 137.6778 159.3748
DRIFTING BUOYS SURFACE PRESSURE (PA) 3301607 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=327.6791, expected range: 0.0000 139.5404
DRIFTING BUOYS SURFACE PRESSURE (PA) 1501749 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=592.9944, expected range: -2626.0957 2249.2153
Severe: rms_fgdepar=606.3241, expected range: 192.9533 817.8678
Severe: avg_pge=0.8948, expected range: 0.3962 0.7500
MOORED BUOYS WIND VECTOR DIFF (M/S) : out of range
2 times in the last 10 days for at least one item
Considerable: obs_number=939.0000, expected range: 1153.3983 1244.8370
Considerable: obs_number=185.0000, expected range: 203.9036 212.6227
Considerable: obs_number=533.0000, expected range: 739.6158 854.7372
Considerable: obs_number=182.0000, expected range: 196.0232 223.4213
metar
METAR SURFACE PRESSURE (PA) FQMA : out of range
Severe: rms_fgdepar=372.7349, expected range: 0.0000 112.2391
METAR SURFACE PRESSURE (PA) DAAE : out of range
Severe: rms_fgdepar=316.7096, expected range: 0.0000 106.7774
METAR SURFACE PRESSURE (PA) FQNP : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=488.5016, expected range: 0.0000 80.1374
METAR SURFACE PRESSURE (PA) LTCR : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-530.7616, expected range: -601.5119 -279.9026
Severe: rms_fgdepar=531.6224, expected range: 282.6012 601.4124
snow
BUFR LAND SYNOP SNOW (CM) 01035 : out of range
30 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=91.6378, expected range: 93.2689 132.6823
Severely_persistent: rms_fgdepar=91.6442, expected range: 93.2660 132.6908
t2m
BUFR LAND SYNOP 2M TEMPERATURE (K) 36026 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-19.8814, expected range: -21.2474 14.2789
Severely_persistent: rms_fgdepar=19.8814, expected range: 0.0000 22.6986
MANUAL LAND SYNOP 2M TEMPERATURE (K) 60185 : out of range
Severe: avg_fgdepar=-12.8087, expected range: -5.9717 5.4511
Severe: rms_fgdepar=13.5708, expected range: 0.0000 4.7171
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89606 : out of range
2 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8222, expected range: 0.2159 1.0924
METAR 2M TEMPERATURE (K) KOFF : out of range
Severe: avg_fgdepar=-13.1241, expected range: -6.2476 3.2027
Severe: rms_fgdepar=13.1241, expected range: 0.0000 6.6917
METAR 2M TEMPERATURE (K) KHIF : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=12.0625, expected range: 0.0000 11.4447
METAR 2M TEMPERATURE (K) KNTU : out of range
Severe: rms_fgdepar=10.2104, expected range: 0.2242 4.3012
LAND TEMP 2M TEMPERATURE (K) 56137 : out of range
2 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8689, expected range: -0.3338 1.3456
BUFR LAND SYNOP 2M TEMPERATURE (K) 89055 : out of range
Severe: rms_fgdepar=12.0948, expected range: 0.0000 9.5980
BUFR LAND SYNOP 2M TEMPERATURE (K) 60185 : out of range
Severe: avg_fgdepar=-12.8587, expected range: -6.0217 5.4011
Severe: rms_fgdepar=13.6180, expected range: 0.0000 4.7516
rh2m
All BUFR LAND SYNOP WMO BLOCK 98 : all data missing
Severely_persistent: obs_number=0, expected range: 122.44 134.31
MANUAL LAND SYNOP RH2M (%) 16632 : out of range
Severe: rms_fgdepar=38.7345, expected range: 0.0000 21.8111