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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2020-06-04 00:00

iasi
METOP-A IASI RADIANCES CHANNEL 571 : out of range
Severe: stdev_fgdepar=0.4635, expected range: 0.3018 0.3826
METOP-A IASI RADIANCES CHANNEL 573 : out of range
Severe: stdev_fgdepar=0.4639, expected range: 0.2992 0.3805
METOP-A IASI RADIANCES CHANNEL 566 : out of range
Considerable: stdev_fgdepar=0.4526, expected range: 0.3011 0.3906
airs
AQUA AIRS RADIANCES CHANNEL 672 : out of range
Slight: stdev_fgdepar=0.4190, expected range: 0.3751 0.4101
mhs
NOAA-19 MHS ALLSKY RADIANCES CHANNEL 5 : out of range
Slight: obs_number=27806.0000, expected range: 28713.8594 31835.8906
mwhs
All FY-3B MWHS ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 13445.88 21684.89
atms
NPP ATMS RADIANCES (7 channels affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=2777.0000, expected range: 2915.9998 3438.5002
gpsro
All FY-3C GNOS RISING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 467.59 2312.99
SPIRE LEMUR 3U GPSRO RISING HEIGHT 2 : out of range
Slight: stdev_norm_fgdepar=0.5653, expected range: 0.5882 0.6677
Atmospheric Motion Vector
GOES-17 AMV VIS1 WIND VECTOR DIFF (M/S) PRESSURE LAYER 600-900 (HPA) : out of range
Considerable: obs_number=232.0000, expected range: 1692.9429 3100.6981
METEOSAT-8 AMV IR3 WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HPA : out of range
Slight: stdev_press=21.7406, expected range: 23.7232 30.5855
Geostationary CSR
GOES-16 ABI RADIANCES CHANNEL 2 : out of range
Considerable: obs_number=11803.0000, expected range: 15289.1701 27559.9549
GOES-16 ABI RADIANCES CHANNEL 3 : out of range
Considerable: obs_number=11799.0000, expected range: 15288.9585 27553.2915
GOES-16 ABI RADIANCES CHANNEL 4 : out of range
Considerable: obs_number=11889.0000, expected range: 15320.8288 27568.5462
Radiosondes
LAND TEMP Q (G/KG) 41316 PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=4.3906, expected range: 0.0000 2.4609
LAND TEMP TEMPERATURE (K) 34858 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=8.3474, expected range: 0.0000 2.3766
LAND TEMP TEMPERATURE (K) 34858 (2 pressure layers affected) : out of range
Severe: avg_pge=0.9006, expected range: -1.1773 0.7500
HIGH RESO LAND TEMP Q (G/KG) 47104 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.5809, expected range: 0.0000 1.6631
HIGH RESO LAND TEMP Q (G/KG) 51076 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.3218, expected range: 0.0000 1.8304
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=1.5775, expected range: 0.1029 0.9282
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 89571 PRESSURE LAYER 900-12 : out of range
Severe: rms_fgdepar=17.8741, expected range: 0.0000 8.7318
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 88 : all data missing
Severe: obs_number=0, expected range: 121.69 166.56
All HIGH RESO LAND TEMP ALL LAYERS South Atlantic : all data missing
Severe: obs_number=0, expected range: 117.69 172.06
HIGH RESO SEA TEMP Q (G/KG) PRESSURE LAYER 0-300 (HPA) : missing
Severe: obs_number=0.0000, expected range: 68.0448 405.6916
All HIGH RESO SEA TEMP ALL LAYERS North pole : all data missing
Severe: obs_number=0, expected range: 214.34 398.66
LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
Considerable: obs_number=73.0000, expected range: 165.1735 301.0765
LAND TEMP WIND VECTOR DIFF (M/S) (3 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=191.0000, expected range: 417.6927 773.0573
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 300-600 (HPA) : out of range
Considerable: obs_number=307.0000, expected range: 359.0226 426.7274
Considerable: obs_number=353.0000, expected range: 409.7282 486.7718
HIGH RESO LAND TEMP TEMPERATURE (K) (4 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=152.0000, expected range: 293.1775 329.8225
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
Considerable: obs_number=165.0000, expected range: 235.5013 308.7209
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (4 pressure layers affected : out of range
3 times in the last 10 days for at least one item
Considerable: obs_number=139.0000, expected range: 219.3904 307.8596
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 900-1200 (HP : out of range
Considerable: avg_fgdepar=9.3387, expected range: 1.4868 6.2628
Considerable: rms_fgdepar=11.7459, expected range: 1.3503 7.6131
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 98433 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_pge=0.8085, expected range: -1.1590 0.7500
LAND PILOT WIND VECTOR DIFF (M/S) (4 pressure layers affected) : out of range
Considerable: obs_number=91.0000, expected range: 221.3217 346.6783
LAND PILOT WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Considerable: obs_number=74.0000, expected range: 199.9024 400.5976
synop
MANUAL LAND SYNOP RH2M (%) 42855 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8174, expected range: -1.4185 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 60602 : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8132, expected range: 0.5653 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43012 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=838.7503, expected range: -624.7441 605.4165
Severely_persistent: rms_fgdepar=838.7503, expected range: 0.0000 604.1479
Severely_persistent: avg_pge=0.9234, expected range: -1.1743 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 23471 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8686, expected range: -1.1359 0.7500
MANUAL LAND SYNOP RH2M (%) 42900 : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=40.7507, expected range: 3.4627 22.7676
Severe: avg_pge=0.9897, expected range: -1.6292 0.7500
MANUAL LAND SYNOP RH2M (%) 68619 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8177, expected range: -1.5164 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 88963 : out of range
Severe: rms_fgdepar=476.1671, expected range: 0.0000 165.9259
Severe: avg_pge=0.8602, expected range: -1.0676 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83115 : out of range
Severe: avg_fgdepar=-882.6467, expected range: -157.3374 136.6063
Severe: rms_fgdepar=882.6467, expected range: 0.0000 137.7639
Severe: avg_pge=0.9363, expected range: 0.0000 0.0000
BUFR LAND SYNOP RH2M (%) 23862 : out of range
Severe: rms_fgdepar=31.5089, expected range: 0.0000 16.5033
BUFR LAND SYNOP RH2M (%) 71072 : out of range
Severe: rms_fgdepar=30.2220, expected range: 0.0000 15.8786
BUFR LAND SYNOP RH2M (%) 72445 : out of range
Severe: avg_pge=0.9699, expected range: -0.2685 0.3334
BUFR LAND SYNOP RH2M (%) 72677 : out of range
Severe: rms_fgdepar=38.7955, expected range: 0.0000 19.7713
BUFR LAND SYNOP RH2M (%) 72428 : out of range
Severe: avg_pge=0.9998, expected range: -0.0306 0.0452
BUFR LAND SYNOP RH2M (%) 02849 : out of range
Severe: rms_fgdepar=41.4610, expected range: 1.3420 13.2357
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94654 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=393.2724, expected range: 0.0000 75.3570
Severe: avg_pge=0.8672, expected range: 0.0000 0.0000
BUFR LAND SYNOP SURFACE PRESSURE (PA) 13378 : out of range
Severe: rms_fgdepar=302.4421, expected range: 0.0000 107.6711
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) TBWUK48 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8027, expected range: 0.1548 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OXFG2 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=683.8454, expected range: -37.1789 1296.6292
Severely_persistent: rms_fgdepar=709.9793, expected range: 0.0000 1309.0334
Severely_persistent: avg_pge=0.8349, expected range: 0.5917 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OYIK2 : out of range
32 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=630.9280, expected range: 387.1791 791.6363
Severely_persistent: rms_fgdepar=633.0225, expected range: 388.9195 791.1695
Severely_persistent: avg_pge=0.8248, expected range: 0.1117 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRDJ3 : out of range
28 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-578.5202, expected range: -735.0269 -283.4246
Severely_persistent: rms_fgdepar=582.7663, expected range: 281.1339 739.1073
Severely_persistent: avg_pge=0.8417, expected range: 0.7329 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6AX3 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8033, expected range: 0.7035 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) VRMO4 : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-509.5404, expected range: -652.1319 -418.6885
Severely_persistent: rms_fgdepar=509.5404, expected range: 418.6885 652.1319
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7EQ4 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=554.9924, expected range: -464.0593 933.5506
Severely_persistent: rms_fgdepar=554.9924, expected range: 0.0000 933.5506
Severely_persistent: avg_pge=0.8146, expected range: -0.7883 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) S6DU6 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=586.7505, expected range: 313.9376 937.2398
Severely_persistent: rms_fgdepar=586.7505, expected range: 314.6068 937.2248
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7CS8 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8145, expected range: 0.2463 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) ONGI : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=517.0524, expected range: -959.5474 1506.0162
Severely_persistent: rms_fgdepar=517.0524, expected range: 0.0000 1486.2996
Severely_persistent: avg_pge=0.8075, expected range: -1.4371 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VRLZ4 : out of range
Severe: avg_pge=0.8967, expected range: -1.4454 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) ZCEF2 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=578.7944, expected range: -1134.5903 1107.6530
Severe: rms_fgdepar=578.7944, expected range: 0.0000 848.1961
Severe: avg_pge=0.8192, expected range: -1.1744 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OWQZ2 : out of range
Severe: avg_fgdepar=556.2639, expected range: -222.3477 274.1767
Severe: rms_fgdepar=556.2639, expected range: 0.0000 188.5324
Severe: avg_pge=0.8057, expected range: -0.3422 0.4035
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6TQ3 : out of range
Severe: rms_fgdepar=637.7084, expected range: 0.0000 280.4193
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7FK6 : out of range
Severe: avg_fgdepar=502.5579, expected range: 243.3637 598.8461
Severe: rms_fgdepar=502.5579, expected range: 243.3637 598.8461
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V7989 : out of range
Severe: avg_fgdepar=-563.3398, expected range: -333.6198 211.8629
Severe: rms_fgdepar=563.3398, expected range: 0.0000 234.3998
Severe: avg_pge=0.8450, expected range: -0.6504 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) KLIG : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8254, expected range: 0.4738 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) : out of range
Considerable: obs_number=371.0000, expected range: 437.3116 503.3134
buoy
MOORED BUOYS SURFACE PRESSURE (PA) 2200186 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8341, expected range: -1.1398 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1601700 : out of range
24 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-694.0944, expected range: -1978.0388 1833.7715
Severely_persistent: rms_fgdepar=700.3921, expected range: 1.8254 928.3089
Severely_persistent: avg_pge=0.9067, expected range: -0.2344 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6203641 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8073, expected range: -1.4158 0.7500
metar
METAR SURFACE PRESSURE (PA) MGSJ : out of range
Severe: avg_fgdepar=683.5424, expected range: -207.5030 304.3910
Severe: rms_fgdepar=878.7880, expected range: 0.0000 256.9215
METAR SURFACE PRESSURE (PA) KMTN : out of range
Severe: rms_fgdepar=451.0372, expected range: 0.0000 199.1274
snow
MANUAL LAND SYNOP SNOW (CM) 11138 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=85.0461, expected range: 68.5878 81.6033
Severely_persistent: rms_fgdepar=85.0461, expected range: 68.5878 81.6033
BUFR LAND SYNOP SNOW (CM) 01361 : out of range
26 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=91.0000, expected range: 93.8957 115.0357
Severely_persistent: rms_fgdepar=91.0000, expected range: 93.8979 115.0360
BUFR LAND SYNOP SNOW (CM) 01435 : out of range
32 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=86.4246, expected range: 90.0850 120.6849
Severely_persistent: rms_fgdepar=86.4251, expected range: 90.0871 120.6881
BUFR LAND SYNOP SNOW (CM) 01346 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=77.6281, expected range: 84.0356 94.1275
Severely_persistent: rms_fgdepar=77.6344, expected range: 84.0411 94.1271
BUFR LAND SYNOP SNOW (CM) 11138 : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=86.2280, expected range: 69.3727 82.3610
Severely_persistent: rms_fgdepar=86.2280, expected range: 69.3727 82.3610
t2m
BUFR LAND SYNOP 2M TEMPERATURE (K) 27415 : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.1076, expected range: -17.7819 -5.7789
Severely_persistent: rms_fgdepar=13.1981, expected range: 6.1850 17.8128