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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2019-09-20 00:00

amsua
METOP-A/AMSUA RADIANCES (10 channels affected) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=2988.0000, expected range: 6653.8976 15083.7024
METOP-A/AMSUA RADIANCES CHANNEL 9 : out of range
1 times in the last 10 days for at least one item
Considerable: avg_biascorr=0.1451, expected range: 0.1656 0.2172
iasi
All METOP-A/IASI RADIANCES ALL CHANNELS Global : all data missing
Severe: obs_number=0, expected range: 0.00 27301.04
atms
NOAA20/ATMS RADIANCES (22 channels affected) : out of range
Severe: obs_number=10063.0000, expected range: 12433.1847 14772.9234
gpsro
All TERRASAR-X SETTING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 0.00 1419.81
All TANDEM-X RISING ALL HEIGHTS Global : all data missing
Severely_persistent: obs_number=0, expected range: 4.75 1092.00
Radiosondes
LAND TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=7.4333, expected range: 1.6585 4.8841
LAND TEMP WIND VECTOR DIFF (M/S) 20292 PRESSURE LAYER 900-1200 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8805, expected range: -1.2292 0.7500
LAND TEMP TEMPERATURE (K) 24122 PRESSURE LAYER 300-600 (HPA) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=6.5340, expected range: 0.0000 3.0591
Severe: avg_pge=0.8052, expected range: -0.6311 0.7500
LAND TEMP Q (G/KG) 83971 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=4.7551, expected range: 0.0000 2.2444
HIGH RESO LAND TEMP TEMPERATURE (K) 72265 PRESSURE LAYER 900-1200 (HPA : out of range
Severe: rms_fgdepar=7.2276, expected range: 0.0000 4.3330
Severe: avg_pge=0.8481, expected range: -0.4253 0.6238
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
Severe: obs_number=94.0000, expected range: 176.2797 197.9426
HIGH RESO SEA TEMP Q (G/KG) PRESSURE LAYER 0-300 (HPA) : missing
Severe: obs_number=0.0000, expected range: 0.0000 400.2527
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) (4 pressure layers affected : out of range
Considerable: obs_number=142.0000, expected range: 185.2673 340.6216
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 900-1200 (HPA) : out of range
Considerable: rms_fgdepar=2.0007, expected range: 0.1970 1.2635
HIGH RESO SEA TEMP WIND VECTOR DIFF (M/S) PRESSURE LAYER 0-300 (HPA) : out of range
Slight: avg_fgdepar=3.8792, expected range: 1.2828 3.2231
Slight: rms_fgdepar=4.3778, expected range: 1.5134 3.7476
amdar
WIGOS AMDAR TEMPERATURE (K) MTCHLDJA PRESSURE LAYER 0-300 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=6.6871, expected range: 0.0000 1.5454
WIGOS AMDAR TEMPERATURE (K) SL0066 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=6.1947, expected range: 0.0000 2.2735
WIGOS AMDAR TEMPERATURE (K) SL0151 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.4473, expected range: 0.0000 2.6452
WIGOS AMDAR TEMPERATURE (K) SL0071 PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8518, expected range: -0.4181 0.7500
WIGOS AMDAR TEMPERATURE (K) SL0014 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.1465, expected range: 0.0000 2.2260
airep
AIREP WIND VECTOR DIFF (M/S) UAL930 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.8436, expected range: 0.0000 6.4917
Severe: avg_pge=0.8199, expected range: -0.1327 0.1603
AIREP WIND VECTOR DIFF (M/S) NRS13E PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.7130, expected range: 0.0000 7.0481
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42711 : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8653, expected range: -1.2955 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42523 : out of range
11 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8282, expected range: -1.3318 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42894 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8006, expected range: -1.6289 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 17135 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: rms_fgdepar=447.1562, expected range: 0.0000 373.6313
Severely_persistent: avg_pge=0.8551, expected range: -0.9040 0.7500
BUFR LAND SYNOP RH2M (%) 94451 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9797, expected range: -1.6549 0.7500
BUFR LAND SYNOP RH2M (%) 94439 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8345, expected range: -2.0439 0.7500
AUTOMATIC LAND SYNOP RH2M (%) 68843 : out of range
Severe: rms_fgdepar=42.1140, expected range: 0.0000 28.6998
Severe: avg_pge=0.9998, expected range: -0.1018 0.1197
MANUAL LAND SYNOP RH2M (%) 68512 : out of range
Severe: rms_fgdepar=27.2605, expected range: 0.0000 11.7354
MANUAL LAND SYNOP RH2M (%) 76122 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9603, expected range: -1.5585 0.7500
MANUAL LAND SYNOP RH2M (%) 41715 : out of range
Severe: rms_fgdepar=35.7472, expected range: 0.0000 31.1586
Severe: avg_pge=0.9177, expected range: -0.0136 0.0239
MANUAL LAND SYNOP RH2M (%) 41739 : out of range
Severe: rms_fgdepar=43.3748, expected range: 0.0000 34.2536
Severe: avg_pge=0.9870, expected range: -0.6926 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43083 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=420.3354, expected range: 0.0000 283.4717
Severe: avg_pge=0.8706, expected range: -1.2248 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83926 : out of range
Severe: rms_fgdepar=333.6447, expected range: 0.0000 125.9437
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 40656 : out of range
Severe: rms_fgdepar=641.4217, expected range: 0.0000 142.5273
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42708 : out of range
Severe: rms_fgdepar=402.0746, expected range: 0.0000 131.2320
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42488 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8305, expected range: -1.2325 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42588 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8403, expected range: -1.3215 0.7500
BUFR LAND SYNOP RH2M (%) 40400 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=60.4754, expected range: 0.0000 38.8213
Severe: avg_pge=1.0000, expected range: -0.6899 0.7500
BUFR LAND SYNOP RH2M (%) 72562 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=36.0463, expected range: 0.0000 14.8299
BUFR LAND SYNOP RH2M (%) 07503 : out of range
Severe: rms_fgdepar=40.8033, expected range: 0.0000 27.8718
Severe: avg_pge=0.9440, expected range: -1.0865 0.7500
BUFR LAND SYNOP RH2M (%) 07645 : out of range
Severe: rms_fgdepar=39.2449, expected range: 0.0000 18.3490
BUFR LAND SYNOP RH2M (%) 72265 : out of range
Severe: rms_fgdepar=46.2108, expected range: 0.0000 13.8778
Severe: avg_pge=0.9084, expected range: -0.0120 0.0191
BUFR LAND SYNOP RH2M (%) 08075 : out of range
Severe: rms_fgdepar=34.1799, expected range: 0.0000 17.8695
BUFR LAND SYNOP RH2M (%) 07646 : out of range
Severe: rms_fgdepar=33.8074, expected range: 0.0000 16.5386
BUFR LAND SYNOP SURFACE PRESSURE (PA) 81982 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9525, expected range: -1.2203 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 23748 : out of range
Severe: rms_fgdepar=440.9607, expected range: 0.0000 92.4201
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94439 : out of range
Severe: avg_pge=0.8610, expected range: -1.3054 0.7500
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) : out of range
Considerable: obs_number=286.0000, expected range: 312.2734 362.7855
ship
AUTOMATIC SHIP SURFACE PRESSURE (PA) : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_biascorr=0.0000, expected range: -177.3614 -77.4251
AUTOMATIC SHIP SURFACE PRESSURE (PA) 44058 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8223, expected range: 0.7120 0.7500
AUTOMATIC SHIP WIND VECTOR DIFF (M/S) 42013 : out of range
20 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8958, expected range: -1.2497 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) LF4J : out of range
16 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8732, expected range: 0.3008 0.7500
SHIP SURFACE PRESSURE (PA) VRLA2 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.9049, expected range: -1.4578 0.7500
SHIP SURFACE PRESSURE (PA) 3ETA7 : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8128, expected range: -0.3788 0.7500
SHIP SURFACE PRESSURE (PA) 9V2779 : out of range
3 times in the last 10 days for at least one item
Severe: avg_pge=0.9025, expected range: -0.6998 0.7500
SHIP SURFACE PRESSURE (PA) CCES : out of range
Severe: rms_fgdepar=711.8416, expected range: 0.0000 374.7769
SHIP WIND VECTOR DIFF (M/S) DIXJ2 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9003, expected range: -0.3523 0.7500
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 4802008 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8833, expected range: -1.3594 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 2201558 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8827, expected range: -1.2620 0.7500
DRIBU WIND VECTOR DIFF (M/S) 53056 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9259, expected range: 0.7151 0.7500
MOORED BUOYS WIND VECTOR DIFF (M/S) : out of range
3 times in the last 10 days for at least one item
Severe: obs_number=218.0000, expected range: 191.4022 194.8681
DRIFTING BUOYS SURFACE PRESSURE (PA) 4101702 : out of range
Severe: rms_fgdepar=644.6762, expected range: 0.0000 226.4999
DRIFTING BUOYS SURFACE PRESSURE (PA) 2101634 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8143, expected range: -1.0956 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 1402556 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=462.3327, expected range: 0.0000 144.9630
metar
METAR SURFACE PRESSURE (PA) FBKE : out of range
Severe: rms_fgdepar=334.5633, expected range: 0.0000 109.9546
METAR SURFACE PRESSURE (PA) SBGR : out of range
Severe: rms_fgdepar=374.5024, expected range: 0.0000 134.2197
snow
AUTOMATIC LAND SYNOP SNOW (CM) : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=0.3499, expected range: -0.0221 0.0245
Severely_persistent: avg_fgdepar=0.3441, expected range: -0.0478 0.0974
Severely_persistent: rms_fgdepar=4.2997, expected range: -0.4114 0.5100
Severely_persistent: rms_fgdepar=4.3052, expected range: 0.0000 1.0287
BUFR LAND SYNOP SNOW (CM) : out of range
25 times in the last 10 days for at least one item
Severely_persistent: obs_number=749.0000, expected range: 947.4332 1089.7247
t2m
LAND TEMP 2M TEMPERATURE (K) 89009 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8695, expected range: 0.3372 1.1510
MANUAL LAND SYNOP 2M TEMPERATURE (K) 17202 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.8886, expected range: 0.0000 4.2935
MANUAL LAND SYNOP 2M TEMPERATURE (K) 17092 : out of range
Severe: rms_fgdepar=7.6940, expected range: 0.2994 4.3020
MANUAL LAND SYNOP 2M TEMPERATURE (K) 29674 : out of range
Severe: rms_fgdepar=7.3421, expected range: 0.0000 3.9936
MANUAL LAND SYNOP 2M TEMPERATURE (K) 63756 : out of range
Severe: rms_fgdepar=13.9054, expected range: 0.0000 3.7508
METAR 2M TEMPERATURE (K) MPDA : out of range
Severe: rms_fgdepar=14.1211, expected range: 0.0000 5.1284
METAR 2M TEMPERATURE (K) KFUL : out of range
Severe: rms_fgdepar=7.7050, expected range: 0.7501 4.4977
METAR 2M TEMPERATURE (K) KBTR : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.6323, expected range: 1.3249 3.8493
METAR 2M TEMPERATURE (K) KOLV : out of range
Severe: rms_fgdepar=8.7044, expected range: 1.0214 4.6597
LAND TEMP 2M TEMPERATURE (K) 29572 : out of range
Severe: avg_est_pge=0.8241, expected range: -0.4963 1.2604
BUFR LAND SYNOP 2M TEMPERATURE (K) 63756 : out of range
Severe: rms_fgdepar=13.9384, expected range: 0.0000 3.2554
BUFR LAND SYNOP 2M TEMPERATURE (K) 89507 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8024, expected range: -0.2237 1.1987
MANUAL LAND SYNOP 2M TEMPERATURE (K) : out of range
1 times in the last 10 days for at least one item
Considerable: obs_number=109.0000, expected range: 119.7832 156.0501
LAND TEMP 2M TEMPERATURE (K) : out of range
Slight: rms_fgdepar=2.3416, expected range: 1.8256 2.2912
rh2m
MANUAL LAND SYNOP RH2M (%) 83721 : out of range
Severe: rms_fgdepar=37.1752, expected range: 0.0000 20.4094