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 Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice.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 2022-08-04 00:00

cris
All NPP CRIS ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 14940.18 15912.82
atms
All NPP ATMS ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 11477.08 14012.26
ssmis
DMSP-18 SSMIS RADIANCES CHANNEL 10 : out of range
25 times in the last 10 days for at least one item
Severely_persistent: stdev_norm_fgdepar=0.3452, expected range: -0.0363 0.1003
Slight: stdev_norm_fgdepar=0.6450, expected range: 0.5874 0.5874
DMSP-17 SSMIS RADIANCES (5 channels affected) : out of range
9 times in the last 10 days for at least one item
Slight: stdev_norm_fgdepar=0.6369, expected range: 0.4890 0.4890
DMSP-18 SSMIS RADIANCES CHANNEL 9 : out of range
23 times in the last 10 days for at least one item
Slight: stdev_norm_fgdepar=0.5984, expected range: 0.5113 0.5113
DMSP-18 SSMIS RADIANCES CHANNEL 11 : out of range
19 times in the last 10 days for at least one item
Slight: stdev_norm_fgdepar=0.6902, expected range: 0.6393 0.6393
Atmospheric Motion Vector
All AQUA MODIS CLEAR WV ALL LAYERS Global : all data missing
Severely_persistent: obs_number=0, expected range: 54.36 1137.19
All NPP VIIRS AMV IR ALL LAYERS Global : all data missing
Severely_persistent: obs_number=0, expected range: 243.31 1606.02
Radiosondes
LAND TEMP Q (G/KG) 38341 PRESSURE LAYER 900-1200 (HPA) : out of range
18 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=7.6469, expected range: 1.8153 9.8271
Severely_persistent: rms_fgdepar=7.7814, expected range: 1.9779 9.7286
All HIGH RESO SEA TEMP ALL LAYERS North West Pacific : all data missing
Severely_persistent: obs_number=0, expected range: 109.68 122.72
LAND TEMP Q (G/KG) 40430 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=4.3766, expected range: 0.0000 2.2191
LAND TEMP TEMPERATURE (K) 40754 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=8.6461, expected range: 0.3409 2.0335
LAND TEMP TEMPERATURE (K) 28695 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=6.3351, expected range: 0.3223 2.2099
LAND TEMP TEMPERATURE (K) 24266 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=6.3510, expected range: 1.3124 2.0086
LAND TEMP WIND VECTOR DIFF (M/S) 42701 PRESSURE LAYER 0-300 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=24.6371, expected range: -15.2767 38.0766
Severe: rms_fgdepar=25.6866, expected range: 0.0000 41.0857
Severe: avg_pge=0.8397, expected range: -0.5302 0.7500
HIGH RESO LAND TEMP Q (G/KG) (3 pressure layers affected) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=182.0000, expected range: 88.1132 93.8868
HIGH RESO LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : missing
Severe: obs_number=0.0000, expected range: 32.1294 270.8589
All HIGH RESO LAND TEMP ALL LAYERS WMO BLOCK 24 : all data missing
Severe: obs_number=0, expected range: 115.62 156.13
All HIGH RESO LAND TEMP ALL LAYERS South pole : all data missing
Severe: obs_number=0, expected range: 75.87 353.95
HIGH RESO LAND TEMP Q (G/KG) PRESSURE LAYER 600-900 (HPA) : out of range
Considerable: rms_fgdepar=1.5312, expected range: 0.0000 0.9307
amdar
WIGOS AMDAR Q (G/KG) BSTXQVBA PRESSURE LAYER 900-1200 (HPA) : out of range
14 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-8.0217, expected range: -10.8922 0.5696
Severely_persistent: rms_fgdepar=8.1260, expected range: 0.4964 10.5636
Severely_persistent: avg_pge=0.9208, expected range: -0.8402 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) EU0166 PRESSURE LAYER 300-600 (HPA) : out of range
Severe: rms_fgdepar=16.6578, expected range: 0.0000 6.8396
Severe: avg_pge=0.8338, expected range: -0.2457 0.3255
WIGOS AMDAR WIND VECTOR DIFF (M/S) OJFUNXBA PRESSURE LAYER 900-1200 (H : out of range
Severe: rms_fgdepar=15.8828, expected range: 0.0000 7.4772
WIGOS AMDAR TEMPERATURE (K) 0LYUNVJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=8.4142, expected range: 0.0000 1.6292
MODE-S WIND VECTOR DIFF (M/S) MAE09CF PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=15.9091, expected range: 0.0000 6.5708
airep
AIREP WIND VECTOR DIFF (M/S) UAL435 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=15.2075, expected range: 0.0000 5.9920
AIREP WIND VECTOR DIFF (M/S) LOT45 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_fgdepar=47.4094, expected range: -1.7166 7.3093
Severe: rms_fgdepar=47.4094, expected range: 0.0000 8.6835
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 42701 PRESSURE LAYER 0-300 (HPA) : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=27.0299, expected range: -21.7510 44.8764
Severely_persistent: rms_fgdepar=27.9946, expected range: 0.0000 47.2229
Severely_persistent: avg_pge=0.8434, expected range: -1.1947 0.7500
synop
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 63450 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8034, expected range: -1.9443 0.7500
BUFR LAND SYNOP RH2M (%) 41061 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8046, expected range: -0.4491 0.6075
BUFR LAND SYNOP RH2M (%) 60253 : out of range
6 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9793, expected range: -1.9600 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 63533 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.8480, expected range: -2.0034 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 83967 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-782.6182, expected range: -195.9007 89.8958
Severe: rms_fgdepar=782.6182, expected range: 0.0000 191.7594
Severe: avg_pge=0.9197, expected range: -1.1101 0.7500
MANUAL LAND SYNOP RH2M (%) 42935 : out of range
Severe: avg_pge=0.8401, expected range: -0.1134 0.1488
BUFR LAND SYNOP SURFACE PRESSURE (PA) 94640 : out of range
Severe: avg_fgdepar=-1015.6375, expected range: -281.6183 191.1892
Severe: rms_fgdepar=1015.6375, expected range: 0.0000 244.9325
Severe: avg_pge=0.9476, expected range: -0.2936 0.3605
BUFR LAND SYNOP SURFACE PRESSURE (PA) 33514 : out of range
Severe: rms_fgdepar=364.6221, expected range: 0.0000 145.0584
BUFR LAND SYNOP SURFACE PRESSURE (PA) 25206 : out of range
3 times in the last 10 days for at least one item
Severe: rms_fgdepar=336.7915, expected range: 0.0000 185.9126
Severe: avg_pge=0.8350, expected range: -0.5509 0.6567
BUFR LAND SYNOP SURFACE PRESSURE (PA) 72636 : out of range
Severe: avg_fgdepar=589.2827, expected range: -36.4389 122.7527
Severe: rms_fgdepar=589.2827, expected range: 0.0000 110.5729
Severe: avg_pge=0.9055, expected range: -0.4413 0.5038
BUFR LAND SYNOP SURFACE PRESSURE (PA) 42367 : out of range
Severe: rms_fgdepar=423.2185, expected range: 0.0000 203.2725
Severe: avg_pge=0.8892, expected range: -0.6690 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=54.0000, expected range: 73.3189 76.4811
ship
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) VRCF6 : out of range
13 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8426, expected range: 0.5013 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OXFU2 : out of range
17 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=553.2720, expected range: 271.1137 743.7456
Severely_persistent: rms_fgdepar=553.2761, expected range: 270.8141 744.4357
Severely_persistent: avg_pge=0.8205, expected range: 0.6966 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 3E3594 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8165, expected range: -0.2058 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) ZCBU5 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=777.2360, expected range: -219.1537 927.5550
Severely_persistent: rms_fgdepar=777.2360, expected range: 0.0000 927.5550
Severely_persistent: avg_pge=0.8761, expected range: -0.6301 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9VKU8 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=1011.5162, expected range: 573.8193 1311.9019
Severely_persistent: rms_fgdepar=1011.5162, expected range: 575.3101 1311.2988
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) ELDMMXN : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=24.4973, expected range: -1.4604 6.9087
Severe: rms_fgdepar=24.4973, expected range: 0.0000 7.9770
Severe: avg_pge=0.9242, expected range: -0.5206 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) YBBQ2 : out of range
2 times in the last 10 days for at least one item
Severe: avg_fgdepar=692.2750, expected range: -456.3916 1383.6130
Severe: rms_fgdepar=692.2750, expected range: 0.0000 1357.4103
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6OM8 : out of range
Severe: avg_fgdepar=1024.5815, expected range: -130.6084 199.4620
Severe: rms_fgdepar=1024.5815, expected range: 0.0000 155.4178
Severe: avg_pge=0.9021, expected range: 0.0000 0.0000
buoy
DRIBU WIND VECTOR DIFF (M/S) 23451 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8887, expected range: 0.1664 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 5401633 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-520.3115, expected range: -1910.9335 1722.0153
Severely_persistent: rms_fgdepar=536.3226, expected range: 0.0000 1417.2093
Severely_persistent: avg_pge=0.8953, expected range: -1.0896 0.7500
DRIFTING BUOYS SURFACE PRESSURE (PA) 6203618 : out of range
Severe: rms_fgdepar=313.8524, expected range: 0.0000 122.7307
DRIFTING BUOYS SURFACE PRESSURE (PA) 1701668 : out of range
Severe: rms_fgdepar=346.2315, expected range: 0.0000 124.2465
metar
METAR SURFACE PRESSURE (PA) HTSU : out of range
Severe: rms_fgdepar=343.6137, expected range: 0.0000 162.2153
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=-772.7459, expected range: -773.7440 -771.9820
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=772.7460, expected range: 771.9822 773.7439
t2m
MANUAL LAND SYNOP 2M TEMPERATURE (K) : out of range
1 times in the last 10 days for at least one item
Severe: obs_number=200.0000, expected range: 265.0030 273.3128
METAR 2M TEMPERATURE (K) KMCN : out of range
Severe: rms_fgdepar=11.8771, expected range: 0.5526 4.0011
BUFR LAND SYNOP 2M TEMPERATURE (K) 80112 : out of range
Severe: avg_fgdepar=15.5927, expected range: -1.2319 4.7151
Severe: rms_fgdepar=15.5927, expected range: 0.0000 4.4001
rh2m
LAND TEMP RH2M (%) 71908 : out of range
Severe: rms_fgdepar=30.8972, expected range: 0.0000 17.1723
MANUAL LAND SYNOP RH2M (%) : out of range
Considerable: obs_number=222.0000, expected range: 255.7185 265.5037
Considerable: obs_number=199.0000, expected range: 258.5439 274.3450