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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-09-21 12:00

iasi
METOP-B IASI RADIANCES CHANNEL 83 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.5117, expected range: 0.4373 0.4687
METOP-B IASI RADIANCES CHANNEL 85 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.4775, expected range: 0.4039 0.4433
METOP-B IASI RADIANCES CHANNEL 61 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2651, expected range: 0.2993 0.3265
METOP-B IASI RADIANCES CHANNEL 79 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2689, expected range: 0.3115 0.3330
METOP-B IASI RADIANCES CHANNEL 133 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2308, expected range: 0.2779 0.3002
METOP-B IASI RADIANCES CHANNEL 66 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2739, expected range: 0.3036 0.3213
METOP-B IASI RADIANCES CHANNEL 111 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2164, expected range: 0.2489 0.2695
METOP-B IASI RADIANCES CHANNEL 131 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.3311, expected range: 0.3647 0.3804
METOP-B IASI RADIANCES CHANNEL 189 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2669, expected range: 0.2914 0.3152
METOP-B IASI RADIANCES CHANNEL 386 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=0.0535, expected range: 0.0886 0.1282
METOP-C IASI RADIANCES CHANNEL 57 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2906, expected range: 0.3216 0.3374
METOP-C IASI RADIANCES CHANNEL 63 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2851, expected range: 0.3140 0.3261
METOP-C IASI RADIANCES CHANNEL 128 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.3037, expected range: 0.3363 0.3427
METOP-C IASI RADIANCES CHANNEL 148 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.2579, expected range: 0.2807 0.2951
METOP-C IASI RADIANCES CHANNEL 1579 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0894, expected range: -0.0833 -0.0788
METOP-C IASI RADIANCES (32 channels affected) : out of range
Severe: avg_biascorr=0.1081, expected range: 0.1543 0.1826
cris
NPP CRIS RADIANCES CHANNEL 48 : out of range
Severe: avg_biascorr=0.2154, expected range: 0.1853 0.2024
NPP CRIS RADIANCES CHANNEL 39 : out of range
Considerable: avg_biascorr=0.2302, expected range: 0.1970 0.2178
NPP CRIS RADIANCES CHANNEL 51 : out of range
Considerable: avg_biascorr=0.1705, expected range: 0.1420 0.1596
airs
AQUA AIRS RADIANCES CHANNEL 104 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0286, expected range: -0.1500 -0.0869
AQUA AIRS RADIANCES CHANNEL 116 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0355, expected range: -0.1816 -0.1103
Severely_persistent: avg_biascorr=-0.1403, expected range: -0.4490 -0.3134
AQUA AIRS RADIANCES CHANNEL 128 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0094, expected range: -0.1318 -0.1007
Severely_persistent: avg_biascorr=-0.0083, expected range: -0.4060 -0.2828
AQUA AIRS RADIANCES CHANNEL 129 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0979, expected range: -0.2140 -0.1793
Severely_persistent: avg_biascorr=-0.0181, expected range: -0.3855 -0.2529
AQUA AIRS RADIANCES CHANNEL 69 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.1374, expected range: -0.3662 -0.2410
Severely_persistent: avg_biascorr=-0.4754, expected range: -0.8473 -0.6894
AQUA AIRS RADIANCES CHANNEL 110 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.0124, expected range: -0.1365 -0.0727
Severely_persistent: avg_biascorr=-0.0538, expected range: -0.2801 -0.1875
AQUA AIRS RADIANCES CHANNEL 138 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1254, expected range: -0.1983 -0.1068
AQUA AIRS RADIANCES CHANNEL 144 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-0.2357, expected range: -0.5609 -0.3944
AQUA AIRS RADIANCES CHANNEL 1869 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.1822, expected range: 0.2331 0.2837
AQUA AIRS RADIANCES (11 channels affected) : out of range
Severe: avg_biascorr=-0.2186, expected range: -0.2047 -0.1864
AQUA AIRS RADIANCES CHANNEL 72 : out of range
Considerable: stdev_fgdepar=0.6423, expected range: 0.7046 0.8165
ssmis
DMSP-17 SSMIS RADIANCES CHANNEL 17 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=-2.6439, expected range: -3.0280 -2.8491
DMSP-17 SSMIS RADIANCES CHANNEL 10 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_norm_fgdepar=-0.1486, expected range: -0.1024 -0.0475
DMSP-18 SSMIS RADIANCES CHANNEL 7 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=4.6833, expected range: 3.8144 4.2196
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1010-1011 (HPA) : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-3.8174, expected range: -3.3301 -3.3216
METOP-B GOME-2 OZONE, TOP PRESSURE LAYER 12-13 (HPA) : out of range
12 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=4.3708, expected range: 5.0442 5.5763
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1-2 (HPA) : out of range
Considerable: stdev_fgdepar=0.0077, expected range: 0.0051 0.0067
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 160-161 (HPA) : out of range
Considerable: stdev_fgdepar=0.2567, expected range: 0.1560 0.2162
Radiosondes
LAND TEMP WIND VECTOR DIFF (M/S) 24507 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=21.2591, expected range: 0.2096 5.3457
Severe: rms_fgdepar=24.5152, expected range: 0.1177 6.5907
Severe: avg_pge=0.8216, expected range: -0.5872 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 32150 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=15.2918, expected range: 0.0000 7.7685
Severe: avg_pge=0.8856, expected range: -0.6529 0.7500
LAND TEMP Q (G/KG) 27995 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.8581, expected range: 0.0000 1.3911
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 74455 PRESSURE LAYER 900-12 : out of range
Severe: rms_fgdepar=15.4616, expected range: 0.0000 4.6314
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 66 : all data missing
Severe: obs_number=0, expected range: 125.89 173.11
All HIGH RESO SEA TEMP ALL LAYERS Alantic Tropical are : all data missing
Severe: obs_number=0, expected range: 70.12 299.22
All BUFR TEMP DESCENT ALL LAYERS Alantic Tropical are : all data missing
Severe: obs_number=0, expected range: 80.96 102.64
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HP : out of range
Considerable: rms_fgdepar=9.3304, expected range: 0.0000 5.5300
amdar
AMDAR WIND VECTOR DIFF (M/S) ANZ176 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.7443, expected range: 0.0000 6.5945
WIGOS AMDAR TEMPERATURE (K) EU8525 (3 pressure layers affected) : out of range
Severe: rms_fgdepar=6.8435, expected range: 0.0000 1.0803
Severe: avg_pge=0.8351, expected range: -0.0171 0.0190
WIGOS AMDAR TEMPERATURE (K) EU8525 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: avg_fgdepar=9.1823, expected range: -0.4355 0.6148
WIGOS AMDAR Q (G/KG) BPZGUWRA PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: avg_fgdepar=-7.1067, expected range: -11.6809 7.7266
Severe: rms_fgdepar=7.1137, expected range: 0.0000 8.3072
ADS-C WIND VECTOR DIFF (M/S) 1HFRTXBA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=21.8428, expected range: 0.0000 15.7791
ADS-C WIND VECTOR DIFF (M/S) AJAEILJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=24.4917, expected range: 0.0000 17.4187
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 42379 (2 pressure layers affected) : out of range
Severe: avg_pge=0.8669, expected range: -1.4029 0.7500
synop
BUFR LAND SYNOP SURFACE PRESSURE (PA) 68939 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=517.7829, expected range: -1253.6285 1716.2004
Severely_persistent: rms_fgdepar=565.3373, expected range: 0.0000 1611.3127
Severely_persistent: avg_pge=0.9079, expected range: -0.3670 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=0.9999, expected range: -0.2646 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 68353 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=30.6594, expected range: 0.0000 12.6023
AUTOMATIC LAND SYNOP RH2M (%) 18156 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9213, expected range: -0.5214 0.7488
AUTOMATIC LAND SYNOP RH2M (%) 68297 : out of range
Severe: rms_fgdepar=31.3670, expected range: 0.0000 15.9774
MANUAL LAND SYNOP Z (M) 84542 : out of range
Severe: avg_pge=0.8332, expected range: -0.4336 0.6005
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 61627 : out of range
Severe: rms_fgdepar=351.1450, expected range: 0.0000 176.2463
MANUAL LAND SYNOP RH2M (%) 41560 : out of range
Severe: avg_pge=0.9884, expected range: -0.6917 0.7500
MANUAL LAND SYNOP RH2M (%) 37864 : out of range
Severe: rms_fgdepar=33.4429, expected range: 0.0000 18.3261
MANUAL LAND SYNOP RH2M (%) 83235 : out of range
Severe: rms_fgdepar=36.3094, expected range: 0.0000 9.5521
MANUAL LAND SYNOP RH2M (%) 66285 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=52.9971, expected range: 34.5955 61.0297
Severe: rms_fgdepar=52.9971, expected range: 34.8497 61.0713
BUFR LAND SYNOP SURFACE PRESSURE (PA) 76683 : out of range
Severe: rms_fgdepar=309.7112, expected range: 0.0000 141.8729
BUFR LAND SYNOP SURFACE PRESSURE (PA) 48064 : out of range
Severe: rms_fgdepar=455.3341, expected range: 31.9211 340.9253
Severe: avg_pge=0.8438, expected range: -0.2494 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 31285 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=415.0373, expected range: 0.0000 302.4191
Severe: avg_pge=0.8671, expected range: -0.8197 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 31587 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=588.0923, expected range: 0.0000 122.9992
BUFR LAND SYNOP SURFACE PRESSURE (PA) 41978 : out of range
Severe: rms_fgdepar=554.5572, expected range: 0.0000 191.6249
BUFR LAND SYNOP SURFACE PRESSURE (PA) 91939 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=379.2455, expected range: 0.0000 180.6349
Severe: avg_pge=0.8839, expected range: -0.1570 0.6916
BUFR LAND SYNOP RH2M (%) 08346 : out of range
Severe: rms_fgdepar=30.6151, expected range: 0.0000 14.6946
BUFR LAND SYNOP RH2M (%) 95307 : out of range
Severe: avg_pge=0.8068, expected range: -0.1986 0.2407
BUFR LAND SYNOP RH2M (%) 06747 : out of range
Severe: avg_fgdepar=-50.2397, expected range: -45.9639 29.1595
Severe: rms_fgdepar=50.6836, expected range: 0.0000 39.0675
BUFR LAND SYNOP RH2M (%) 27799 : out of range
Severe: rms_fgdepar=33.4283, expected range: 0.0000 17.1960
Severe: avg_pge=0.8687, expected range: -0.0010 0.0068
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRRD7 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=726.6919, expected range: 309.1456 1017.8518
Severely_persistent: rms_fgdepar=726.9549, expected range: 301.8985 1032.7025
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WACW : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=780.6924, expected range: 489.0425 962.5572
Severely_persistent: rms_fgdepar=780.6924, expected range: 489.3035 962.4210
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 7JUL : out of range
Severe: rms_fgdepar=18.0058, expected range: 0.0000 7.6281
Severe: avg_pge=0.8751, expected range: -0.7099 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) PBCO : out of range
Severe: avg_fgdepar=23.9822, expected range: -2.3220 9.2826
Severe: rms_fgdepar=23.9822, expected range: 0.0000 9.7027
Severe: avg_pge=0.9310, expected range: -0.7027 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OWLD2 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-557.2978, expected range: -648.0367 5.8139
Severe: rms_fgdepar=557.6823, expected range: 0.0000 671.6757
Severe: avg_pge=0.8467, expected range: 0.4169 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7OT3 : out of range
Severe: rms_fgdepar=621.0141, expected range: 0.0000 148.4287
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9HA4048 : out of range
Severe: avg_fgdepar=912.8319, expected range: 153.4233 1652.6822
Severe: rms_fgdepar=919.8890, expected range: 153.4233 1652.6822
BUFR SHIP SYNOP SURFACE PRESSURE (PA) KAPD : out of range
Severe: rms_fgdepar=512.5637, expected range: 0.0000 107.4575
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101849 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8364, expected range: -0.9197 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6402654 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=584.8678, expected range: -1749.2460 1671.5595
Severe: rms_fgdepar=587.2257, expected range: 0.0000 962.6170
Severe: avg_pge=0.8967, expected range: -0.0733 0.7500
snow
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=-781.2632, expected range: -791.3667 -760.8255
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=781.2636, expected range: 760.8065 791.4089
BUFR LAND SYNOP SNOW (CM) _MF12FF7 : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=53.3636, expected range: 40.4503 59.4749
BUFR LAND SYNOP SNOW (CM) _MF12FF7 : out of range
20 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=53.3777, expected range: 41.7498 58.7096
BUFR LAND SYNOP SNOW (CM) _MI1F9AC : out of range
26 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=52.4375, expected range: 40.2511 64.8372
BUFR LAND SYNOP SNOW (CM) _MI1F9AC : out of range
26 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=53.5893, expected range: 41.0864 65.3799
t2m
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
24 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-15.6511, expected range: -22.2677 -9.1311
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13149 : out of range
24 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=15.6656, expected range: 9.2025 22.2741
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
30 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-12.8630, expected range: -21.4771 -8.8818
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI158E9 : out of range
30 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=12.8906, expected range: 8.9528 21.4857
METAR 2M TEMPERATURE (K) KDLF : out of range
Severe: avg_fgdepar=-14.2830, expected range: -4.4939 4.0132
Severe: rms_fgdepar=14.2830, expected range: 0.0000 3.6215