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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-08-13 00:00

amsua
NOAA-19 AMSUA ALL SKY RADIANCES CHANNEL 8 : out of range
1 times in the last 10 days for at least one item
Severe: avg_biascorr=0.1176, expected range: -0.4893 -0.2586
cris
All NPP CRIS ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 14972.55 15832.70
gmi
GPM GMI ALSKY RADIANCES (9 channels affected) : out of range
Considerable: obs_number=6674.0000, expected range: 10305.3434 13354.7816
atms
All NPP ATMS ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 11509.40 13919.08
NOAA20 ATMS RADIANCES CHANNEL 19 : out of range
Considerable: avg_biascorr=-0.3717, expected range: -0.3526 -0.3210
gpsro
COSMIC2-E4 GPSRO RISING HEIGHT 18-20 KM : out of range
Slight: avg_norm_fgdepar=-0.0964, expected range: -0.0369 0.1827
Atmospheric Motion Vector
All AQUA MODIS CLEAR WV ALL LAYERS Global : all data missing
Severely_persistent: obs_number=0, expected range: 155.54 1011.47
All NPP VIIRS AMV IR ALL LAYERS Global : all data missing
Severely_persistent: obs_number=0, expected range: 190.79 1473.17
GOES-17 AMV WIND VECTOR DIFF (M/S) PRESSURE LAYER 600-900 (HPA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: stdev_press=8.5569, expected range: -0.4072 0.4872
Radiosondes
LAND TEMP Q (G/KG) 35700 PRESSURE LAYER 900-1200 (HPA) : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=6.7827, expected range: -1.9506 10.5348
Severely_persistent: rms_fgdepar=6.9736, expected range: 0.0000 10.5094
LAND TEMP Q (G/KG) 38341 PRESSURE LAYER 900-1200 (HPA) : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=7.0073, expected range: -0.5329 10.6870
Severely_persistent: rms_fgdepar=7.1443, expected range: 0.0000 10.6027
LAND TEMP TEMPERATURE (K) 60715 PRESSURE LAYER 0-300 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=11.9833, expected range: -32.1413 38.3864
Severe: avg_pge=0.8546, expected range: -1.7864 0.7500
LAND TEMP TEMPERATURE (K) 60715 (2 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=11.9944, expected range: -29.2911 37.1599
LAND TEMP WIND VECTOR DIFF (M/S) 96645 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=17.9966, expected range: 0.0000 7.1569
Severe: avg_pge=0.8574, expected range: -0.6431 0.7500
HIGH RESO LAND TEMP TEMPERATURE (K) 60715 PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=13.4016, expected range: -32.5994 38.4591
Severe: avg_pge=0.8513, expected range: -1.7683 0.7500
HIGH RESO LAND TEMP TEMPERATURE (K) 60715 (3 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=13.4220, expected range: -28.4168 36.5431
HIGH RESO LAND TEMP TEMPERATURE (K) 17281 PRESSURE LAYER 900-1200 (HPA : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.9013, expected range: -0.7542 0.7500
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=3.9817, expected range: 0.2554 1.7230
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 300-600 (HPA : missing
Severe: obs_number=0.0000, expected range: 0.0000 270.3339
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 20 : all data missing
Severe: obs_number=0, expected range: 135.79 160.71
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 24 : all data missing
Severe: obs_number=0, expected range: 107.06 155.94
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 46 : all data missing
Severe: obs_number=0, expected range: 7.74 832.80
All HIGH RESO SEA TEMP ALL LAYERS North East Pacific : all data missing
Severe: obs_number=0, expected range: 51.77 280.44
All BUFR TEMP DESCENT ALL LAYERS North Atlantic : all data missing
Severe: obs_number=0, expected range: 63.75 133.68
All BUFR TEMP DESCENT ALL LAYERS North pole : all data missing
Severe: obs_number=0, expected range: 86.05 104.84
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (3 pressure layers affected : out of range
3 times in the last 10 days for at least one item
Considerable: obs_number=573.0000, expected range: 659.0000 679.0000
amdar
WIGOS AMDAR Q (G/KG) BSTXQVBA PRESSURE LAYER 900-1200 (HPA) : out of range
22 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-7.8295, expected range: -14.9700 2.9398
Severely_persistent: rms_fgdepar=7.8390, expected range: 0.0000 14.3168
AMDAR WIND VECTOR DIFF (M/S) THT7 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.7887, expected range: 0.3118 6.8883
AMDAR WIND VECTOR DIFF (M/S) ANZ175 PRESSURE LAYER 300-600 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=24.6680, expected range: -0.8983 5.1224
Severe: rms_fgdepar=24.6680, expected range: 0.0000 5.1224
Severe: avg_pge=0.8920, expected range: -1.0319 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU1814 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=15.6059, expected range: 0.0000 4.7745
WIGOS AMDAR WIND VECTOR DIFF (M/S) BUYGUWRA PRESSURE LAYER 600-900 (HP : out of range
Severe: rms_fgdepar=19.9821, expected range: 0.7567 6.5950
Severe: avg_pge=0.8637, expected range: -0.3805 0.7124
MODE-S WIND VECTOR DIFF (M/S) M4F1FFB PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=15.7850, expected range: 0.0000 4.2671
ADS-C WIND VECTOR DIFF (M/S) YX5EILZA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=16.7588, expected range: 0.4884 6.1814
airep
AIREP WIND VECTOR DIFF (M/S) AAL258 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.0254, expected range: 0.5022 5.3011
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 42701 PRESSURE LAYER 0-300 (HPA) : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=20.5511, expected range: 7.3616 37.7838
Severely_persistent: rms_fgdepar=20.9522, expected range: 7.0400 39.4258
Severely_persistent: avg_pge=0.8178, expected range: 0.5437 0.7500
LAND PILOT WIND VECTOR DIFF (M/S) 96645 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=16.7914, expected range: 0.0951 5.7752
Severe: avg_pge=0.8771, expected range: -0.4303 0.7500
BUFR LAND PILOT WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : missing
1 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 24.5719 161.2592
synop
AUTOMATIC LAND SYNOP RH2M (%) 18156 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-50.9991, expected range: -98.4927 13.0093
Severely_persistent: rms_fgdepar=51.0247, expected range: 0.0000 97.4292
MANUAL LAND SYNOP Z (M) 68032 : out of range
Severe: rms_fgdepar=392.3193, expected range: 0.0000 170.9779
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 67152 : out of range
Severe: rms_fgdepar=360.1266, expected range: 0.0000 137.2213
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 82596 : out of range
Severe: rms_fgdepar=415.4635, expected range: 0.0000 356.3007
Severe: avg_pge=0.8434, expected range: -1.3615 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83907 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.8359, expected range: -1.1352 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83499 : out of range
Severe: rms_fgdepar=378.9437, expected range: 0.0000 207.8272
Severe: avg_pge=0.8603, expected range: -0.5875 0.7500
MANUAL LAND SYNOP RH2M (%) 38911 : out of range
Severe: avg_pge=0.9082, expected range: -0.4048 0.5611
MANUAL LAND SYNOP RH2M (%) 76243 : out of range
Severe: rms_fgdepar=33.0237, expected range: 0.0000 16.6143
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94422 : out of range
Severe: avg_fgdepar=704.3346, expected range: -145.2827 129.5146
Severe: rms_fgdepar=704.3346, expected range: 0.0000 109.0305
Severe: avg_pge=0.9239, expected range: 0.0000 0.0000
BUFR LAND SYNOP SURFACE PRESSURE (PA) 29662 : out of range
Severe: rms_fgdepar=308.8623, expected range: 13.6964 67.5302
BUFR LAND SYNOP SURFACE PRESSURE (PA) 08347 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=762.0848, expected range: -83.8191 115.3471
Severe: rms_fgdepar=762.0848, expected range: 0.0000 93.7787
Severe: avg_pge=0.9486, expected range: -0.0636 0.0799
BUFR LAND SYNOP SURFACE PRESSURE (PA) 13619 : out of range
Severe: rms_fgdepar=315.3745, expected range: 10.1652 125.0449
BUFR LAND SYNOP RH2M (%) 72270 : out of range
Severe: rms_fgdepar=39.1110, expected range: 0.0000 15.5889
BUFR LAND SYNOP RH2M (%) 08392 : out of range
Severe: avg_pge=0.9851, expected range: -0.8419 0.7500
BUFR LAND SYNOP RH2M (%) 07316 : out of range
Severe: rms_fgdepar=37.7131, expected range: 0.0000 18.9634
BUFR LAND SYNOP RH2M (%) 08276 : out of range
Severe: rms_fgdepar=40.9205, expected range: 0.0000 38.4713
Severe: avg_pge=0.9663, expected range: -0.1069 0.1346
BUFR LAND SYNOP RH2M (%) 07747 : out of range
Severe: rms_fgdepar=32.4589, expected range: 0.0000 14.5677
BUFR LAND SYNOP RH2M (%) 60178 : out of range
Severe: rms_fgdepar=36.5198, expected range: 0.0000 14.8062
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 2EIF7 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=502.0898, expected range: 120.9320 964.6017
Severely_persistent: rms_fgdepar=502.0898, expected range: 120.9320 964.6017
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 9HJB9 : out of range
Severe: rms_fgdepar=17.4932, expected range: 0.0000 11.9683
Severe: avg_pge=0.8907, expected range: -0.3132 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) S6CH4 : out of range
Severe: avg_fgdepar=695.4086, expected range: -506.3129 416.6276
Severe: rms_fgdepar=695.4086, expected range: 0.0000 472.7925
Severe: avg_pge=0.8469, expected range: -1.1448 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 2IYH6 : out of range
Severe: avg_fgdepar=-1258.0530, expected range: -246.3589 161.4963
Severe: rms_fgdepar=1258.0530, expected range: 0.0000 229.4198
Severe: avg_pge=0.9305, expected range: -0.5305 0.5964
BUFR SHIP SYNOP SURFACE PRESSURE (PA) RCLKYXB : out of range
Severe: rms_fgdepar=524.8797, expected range: 0.0000 173.7241
BUFR SHIP SYNOP SURFACE PRESSURE (PA) PINX : out of range
Severe: avg_pge=0.8193, expected range: 0.6665 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 2300593 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8104, expected range: 0.6440 0.7500
metar
METAR SURFACE PRESSURE (PA) MSSA : out of range
Severe: rms_fgdepar=607.3222, expected range: 0.0000 278.2075
METAR SURFACE PRESSURE (PA) FYWH : out of range
Severe: rms_fgdepar=339.6702, expected range: 0.0000 137.4312
snow
MANUAL LAND SYNOP SNOW (CM) 37552 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=66.5000, expected range: 9.3653 99.9680
Severely_persistent: rms_fgdepar=66.5169, expected range: 11.7702 99.3503
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=-772.8368, expected range: -773.0962 -772.2911
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=772.8368, expected range: 772.2915 773.0960
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=19.0261, expected range: -6.3843 16.0713
Severely_persistent: rms_fgdepar=19.0618, expected range: 3.1245 15.0734
Severely_persistent: avg_est_pge=0.8001, expected range: 0.0795 0.8132
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 71837 : out of range
Severe: rms_fgdepar=10.8440, expected range: 1.4254 5.0734
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
Severe: avg_fgdepar=-14.2210, expected range: -12.0243 -1.1037
Severe: rms_fgdepar=14.2222, expected range: 1.2762 12.1175
MANUAL LAND SYNOP 2M TEMPERATURE (K) 72376 : out of range
Severe: avg_fgdepar=12.6288, expected range: 2.5639 10.7422
Severe: rms_fgdepar=12.8738, expected range: 2.8420 11.1001
MANUAL LAND SYNOP 2M TEMPERATURE (K) 43376 : out of range
Severe: rms_fgdepar=11.6316, expected range: 0.0951 5.4470
METAR 2M TEMPERATURE (K) CYDC : out of range
Severe: rms_fgdepar=12.7663, expected range: 1.0576 7.1750
METAR 2M TEMPERATURE (K) EGPO : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.2563, expected range: 0.0000 2.5161
METAR 2M TEMPERATURE (K) SEST : out of range
Severe: avg_fgdepar=19.1593, expected range: 1.1311 3.3380
Severe: rms_fgdepar=19.1593, expected range: 1.2624 3.3311
Severe: avg_est_pge=0.8021, expected range: -0.0737 0.1461
BUFR LAND SYNOP 2M TEMPERATURE (K) 71965 : out of range
Severe: avg_fgdepar=13.3579, expected range: -2.9930 6.2481
Severe: rms_fgdepar=13.5236, expected range: 0.0000 6.6487
BUFR LAND SYNOP 2M TEMPERATURE (K) 89577 : out of range
Severe: avg_fgdepar=-14.3336, expected range: -12.1493 -1.1301
Severe: rms_fgdepar=14.3351, expected range: 1.3043 12.2295
BUFR LAND SYNOP 2M TEMPERATURE (K) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=1022.0000, expected range: 835.5174 875.5938
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 71094 : out of range
Severe: rms_fgdepar=33.3336, expected range: 0.0000 18.8096
MANUAL LAND SYNOP RH2M (%) 94623 : out of range
Severe: rms_fgdepar=36.0012, expected range: 0.0000 20.3324
MANUAL LAND SYNOP RH2M (%) 72564 : out of range
Severe: rms_fgdepar=35.1608, expected range: 0.0000 18.3307
BUFR LAND SYNOP RH2M (%) 71094 : out of range
Severe: rms_fgdepar=32.6238, expected range: 0.0000 18.5791
BUFR LAND SYNOP RH2M (%) _MF1D62E : out of range
Severe: rms_fgdepar=32.8031, expected range: 0.0000 17.0655