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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-11-16 12:00

AMSUA Pacific RARS
All NOAA-18 AMSUA ALL SKY CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 359.87 1681.12
All NOAA-19 AMSUA ALL SKY CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 114.61 1466.89
iasi
METOP-B IASI RADIANCES CHANNEL 5403 : out of range
Slight: stdev_fgdepar=0.4920, expected range: 0.4125 0.4744
METOP-B IASI RADIANCES CHANNEL 5480 : out of range
Slight: stdev_fgdepar=0.5121, expected range: 0.4307 0.4951
gpsro
All KOMPSAT-5 GPSRO SETTING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 184.24 921.16
Atmospheric Motion Vector
HIMAWARI-8 AMV VIS1 WIND VECTOR DIFF (M/S) (2 pressure layers affected : out of range
2 times in the last 10 days for at least one item
Severe: obs_number=612.0000, expected range: 207.4824 323.7988
Radiosondes
LAND TEMP Q (G/KG) 83525 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=3.4473, expected range: 0.0000 1.7850
LAND TEMP TEMPERATURE (K) 21946 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=6.1903, expected range: 0.0000 1.5462
LAND TEMP TEMPERATURE (K) 34858 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=6.5955, expected range: 0.0000 2.4534
Severe: avg_pge=0.8677, expected range: -0.8812 0.7500
LAND TEMP TEMPERATURE (K) 29862 PRESSURE LAYER 600-900 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.4083, expected range: 0.0000 7.3726
Severe: avg_pge=0.8657, expected range: -0.9273 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 34858 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=17.3081, expected range: 0.0000 8.2264
LAND TEMP WIND VECTOR DIFF (M/S) 21946 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=16.3287, expected range: 0.0000 8.0691
Severe: avg_pge=0.8228, expected range: -0.6405 0.7500
LAND TEMP WIND VECTOR DIFF (M/S) 83649 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=15.8108, expected range: 1.2609 2.6942
HIGH RESO LAND TEMP Q (G/KG) 58362 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.9774, expected range: 0.2159 1.3674
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 56492 PRESSURE LAYER 300-60 : out of range
Severe: avg_fgdepar=22.0038, expected range: -0.6051 7.3520
Severe: rms_fgdepar=24.2694, expected range: 0.0000 8.6569
HIGH RESO SEA TEMP Q (G/KG) XKQLWQB PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.7356, expected range: 0.0000 1.4259
HIGH RESO SEA TEMP WIND VECTOR DIFF (M/S) XKQLWQB PRESSURE LAYER 900-1 : out of range
Severe: rms_fgdepar=16.9234, expected range: 0.7276 4.5489
amdar
AMDAR WIND VECTOR DIFF (M/S) NZL050 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=15.9760, expected range: 0.0000 7.1897
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU0387 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=18.6163, expected range: 0.0000 10.3819
ADS-C WIND VECTOR DIFF (M/S) GG4IRSJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=23.0055, expected range: 0.0000 13.1864
ADS-C WIND VECTOR DIFF (M/S) LE5CTRJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=24.1963, expected range: 0.0000 18.9363
prof
EUROPEAN WIND PROFILER VECTOR DIFF (M/S) 01405 PRESSURE LAYER 600-900 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=23.7647, expected range: -18.3156 31.2058
Severely_persistent: rms_fgdepar=23.8205, expected range: 0.0000 31.0835
Severely_persistent: avg_pge=0.9072, expected range: -1.0089 0.7500
JAPANESE WIND PROFILER VECTOR DIFF (M/S) 47674 PRESSURE LAYER 300-600 : out of range
Severe: rms_fgdepar=17.6895, expected range: 0.0000 12.0312
Severe: avg_pge=0.8739, expected range: -0.0938 0.4879
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 83649 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=15.6736, expected range: 0.2666 3.5472
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 63450 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8163, expected range: -1.7664 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 63533 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8004, expected range: -1.6134 0.7500
BUFR LAND SYNOP RH2M (%) 43097 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8252, expected range: -0.9054 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 81797 : out of range
36 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=595.2068, expected range: 514.0815 691.2892
Severely_persistent: rms_fgdepar=595.6002, expected range: 513.8780 692.2698
BUFR LAND SYNOP SURFACE PRESSURE (PA) 84825 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-508.0864, expected range: -682.2319 -394.7517
Severely_persistent: rms_fgdepar=508.6791, expected range: 405.4940 674.3258
MANUAL LAND SYNOP RH2M (%) 42661 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9755, expected range: -0.1720 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 78488 : out of range
Severe: rms_fgdepar=444.6907, expected range: 0.0000 166.0658
BUFR LAND SYNOP RH2M (%) 02141 : out of range
Severe: rms_fgdepar=43.2550, expected range: 0.0000 22.6693
Severe: rms_fgdepar=34.4335, expected range: 0.0000 12.8492
BUFR LAND SYNOP RH2M (%) 02209 : out of range
Severe: avg_fgdepar=-54.6200, expected range: -51.3988 21.9880
Severe: rms_fgdepar=54.7586, expected range: 0.0000 51.3506
BUFR LAND SYNOP RH2M (%) 89272 : out of range
Severe: rms_fgdepar=46.7750, expected range: 0.0000 23.1749
BUFR LAND SYNOP SURFACE PRESSURE (PA) 33135 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=394.9903, expected range: 0.0000 165.5312
BUFR LAND SYNOP SURFACE PRESSURE (PA) 35386 : out of range
Severe: rms_fgdepar=564.6627, expected range: 0.0000 136.5541
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3FYD4 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=622.1281, expected range: -252.0562 1344.5782
Severely_persistent: rms_fgdepar=622.1281, expected range: 0.0000 1295.6280
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6DP7 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=526.3043, expected range: 85.1704 847.6017
Severely_persistent: rms_fgdepar=526.3043, expected range: 86.8808 847.4780
Severely_persistent: avg_pge=0.8013, expected range: 0.4982 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) LAON8 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8362, expected range: -1.2548 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WDK7414 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-699.3902, expected range: -919.2300 365.7197
Severely_persistent: rms_fgdepar=699.3902, expected range: 0.0000 919.2300
Severely_persistent: avg_pge=0.8774, expected range: -1.0572 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) WYQ4356 : out of range
29 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=802.5546, expected range: -1894.7208 2413.4239
Severely_persistent: rms_fgdepar=803.4256, expected range: 0.0000 2336.0052
Severely_persistent: avg_pge=0.8697, expected range: -1.5422 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) 8VY2YWF : out of range
Severe: rms_fgdepar=15.3533, expected range: 0.0000 11.5050
Severe: avg_pge=0.8646, expected range: -0.8269 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) C6BX9 : out of range
Severe: rms_fgdepar=17.4913, expected range: 0.0000 10.2695
Severe: avg_pge=0.8982, expected range: -0.6262 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) LF5B : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=18.1116, expected range: 0.0000 18.0101
Severe: avg_pge=0.8978, expected range: -0.6823 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) ONLE : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=22.9577, expected range: -7.4097 28.5689
Severe: rms_fgdepar=22.9577, expected range: 0.0000 28.5689
Severe: avg_pge=0.9269, expected range: -0.7050 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) MAOR9 : out of range
Severe: avg_fgdepar=558.0819, expected range: -472.7051 574.4876
Severe: rms_fgdepar=819.0808, expected range: 0.0000 564.6663
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OWCH2 : out of range
Severe: avg_fgdepar=522.1046, expected range: -261.0551 83.7059
Severe: rms_fgdepar=522.1046, expected range: 0.0000 245.4415
Severe: avg_pge=0.8009, expected range: -0.7081 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) V7QT7 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=647.8044, expected range: -937.4270 1131.9969
Severe: rms_fgdepar=680.9611, expected range: -670.9975 988.2376
Severe: avg_pge=0.8195, expected range: -1.3659 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 1301612 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8779, expected range: -1.4968 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 3301615 : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8104, expected range: -1.3567 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6501679 : out of range
19 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=539.8054, expected range: -845.8005 1101.6682
Severely_persistent: rms_fgdepar=557.0825, expected range: 0.0000 1144.4357
MOORED BUOYS WIND VECTOR DIFF (M/S) 4400039 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=15.1624, expected range: 0.0000 10.8643
Severe: avg_pge=0.8741, expected range: -0.3237 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2101841 : out of range
Severe: rms_fgdepar=464.5847, expected range: 0.0000 118.1525
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101719 : out of range
Severe: rms_fgdepar=334.0745, expected range: 0.0000 71.6650
DRIFTING BUOYS SURFACE PRESSURE (PA) 6202632 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=493.4199, expected range: 0.0000 133.3704
Severe: avg_pge=0.8718, expected range: -0.4681 0.5990
metar
METAR SURFACE PRESSURE (PA) OIZC : out of range
Severe: rms_fgdepar=589.9771, expected range: 0.0000 143.6820
METAR SURFACE PRESSURE (PA) SKIP : out of range
Severe: rms_fgdepar=457.4595, expected range: 0.0000 226.7707
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=-787.3178, expected range: -801.9377 -771.8168
Severely_persistent: rms_fgdepar=787.4796, expected range: 772.2674 801.5987
BUFR LAND SYNOP SNOW (CM) _MI17AC6 : out of range
32 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-73.6462, expected range: -80.7578 -28.8387
Severely_persistent: rms_fgdepar=73.6687, expected range: 28.8754 80.7657
MANUAL LAND SYNOP SNOW (CM) 25378 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=37.4319, expected range: 0.0000 18.1064
t2m
MANUAL LAND SYNOP 2M TEMPERATURE (K) 23383 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.3145, expected range: -18.9873 14.2315
Severely_persistent: rms_fgdepar=13.3182, expected range: -9.1319 17.5640
BUFR LAND SYNOP 2M TEMPERATURE (K) 23383 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-13.1837, expected range: -18.9120 14.1973
Severely_persistent: rms_fgdepar=13.1870, expected range: -9.0433 17.4714
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI13804 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-17.7488, expected range: -57.9326 43.2762
Severely_persistent: rms_fgdepar=17.7611, expected range: 11.8299 22.6735
BUFR LAND SYNOP 2M TEMPERATURE (K) _MI1D581 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-16.5010, expected range: -19.9076 -10.0732
Severely_persistent: rms_fgdepar=16.5010, expected range: 10.0282 20.0199
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02031 : out of range
Severe: avg_fgdepar=-12.7067, expected range: -8.1878 5.8662
Severe: rms_fgdepar=13.3705, expected range: -4.3098 8.5107
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02036 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=-15.2358, expected range: -9.3584 8.3875
Severe: rms_fgdepar=15.2362, expected range: 0.0000 8.5790
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 02821 : out of range
Severe: avg_fgdepar=16.6312, expected range: -5.6680 2.4734
Severe: rms_fgdepar=16.6312, expected range: 0.0000 5.3320
METAR 2M TEMPERATURE (K) EFHA : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=13.1551, expected range: 0.0000 2.5165
METAR 2M TEMPERATURE (K) UGMS : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=13.2142, expected range: 3.4850 18.5237
Severe: rms_fgdepar=13.2237, expected range: 3.5361 18.5926
BUFR LAND SYNOP 2M TEMPERATURE (K) 01058 : out of range
Severe: rms_fgdepar=11.9836, expected range: 0.0000 3.9210
BUFR LAND SYNOP 2M TEMPERATURE (K) 01064 : out of range
Severe: avg_fgdepar=13.9858, expected range: -4.4095 2.4566
Severe: rms_fgdepar=14.4244, expected range: 0.1115 3.3120
BUFR LAND SYNOP 2M TEMPERATURE (K) 02031 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=-13.7422, expected range: -8.7993 6.1551
Severe: rms_fgdepar=14.2206, expected range: 0.0000 8.9111
BUFR LAND SYNOP 2M TEMPERATURE (K) 02036 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=-15.8297, expected range: -9.5635 8.6007
Severe: rms_fgdepar=15.8326, expected range: 0.0000 8.8690
BUFR LAND SYNOP 2M TEMPERATURE (K) 02821 : out of range
Severe: avg_fgdepar=13.6329, expected range: -4.7339 1.8349
Severe: rms_fgdepar=14.2593, expected range: 0.0000 4.2031
rh2m
AUTOMATIC LAND SYNOP RH2M (%) 02031 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=32.4229, expected range: 0.0000 11.2750
AUTOMATIC LAND SYNOP RH2M (%) 02055 : out of range
Severe: rms_fgdepar=33.1382, expected range: 0.0000 17.5141
AUTOMATIC LAND SYNOP RH2M (%) 02141 : out of range
Severe: rms_fgdepar=34.3216, expected range: 0.0000 13.4845
AUTOMATIC LAND SYNOP RH2M (%) 02219 : out of range
Severe: rms_fgdepar=31.6431, expected range: 0.0000 9.9477
METAR RH2M (%) ORER : out of range
Severe: rms_fgdepar=30.1668, expected range: 0.0000 17.1035