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Filtrering og LCI inversion
Esben Auken
HydroGeophysics GroupDepartment of Earth Sciences, University of Aarhus, Denmarkwww.hgg.au.dk
Filtering of couplings from raw data
Averaging core set up
Filtering of noise filled data from averaged data
Processeringsindstillinger GPS data
Angle data
Altitude data
Voltage data
Filtrering af data – lavmoment z-data Flyvehøjde er 25 – 35 m
Stærk korelation imellem flyverhøjde og signalniveau
Time
11
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Lo
g -
No
Un
it
1e+00
1e+01
1e+02
1e+03
1e+04
1e+05
Altitu
de
[m]
100.0
95.0
90.0
85.0
80.0
75.0
70.0
65.0
60.0
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
Time
11
:47
:30
11
:47
:00
11
:46
:30
11
:46
:00
11
:45
:30
11
:45
:00
11
:44
:30
11
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:00
11
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11
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:00
11
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:30
11
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:00
11
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11
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:00
11
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11
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11
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:30
11
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:00
11
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:30
11
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:00
11
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:30
11
:37
:00
11
:36
:30
11
:36
:00
11
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:30
11
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:00
11
:34
:30
11
:34
:00
11
:33
:30
11
:33
:00
11
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:30
11
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:00
11
:31
:30
11
:31
:00
11
:30
:30
11
:30
:00
11
:29
:30
11
:29
:00
11
:28
:30
11
:28
:00
11
:27
:30
Lo
g -
No
Un
it
1e+00
1e+01
1e+02
1e+03
1e+04
1e+05
Altitu
de
[m]
100.0
95.0
90.0
85.0
80.0
75.0
70.0
65.0
60.0
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0Altitude of Tx coil
Raw Voltage Data
Time
11
:32
:55
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:50
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:45
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:40
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:32
:35
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:30
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:25
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:20
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:32
:15
11
:32
:10
11
:32
:05
11
:32
:00
11
:31
:55
11
:31
:50
11
:31
:45
11
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:40
11
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:35
11
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:30
11
:31
:25
11
:31
:20
11
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:15
11
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:10
11
:31
:05
11
:31
:00
11
:30
:55
11
:30
:50
11
:30
:45
11
:30
:40
11
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:35
11
:30
:30
11
:30
:25
11
:30
:20
11
:30
:15
11
:30
:10
11
:30
:05
11
:30
:00
Lo
g -
No
Un
it
1e+00
1e+01
1e+02
1e+03
1e+04
1e+05
Altitu
de
[m]
100.0
95.0
90.0
85.0
80.0
75.0
70.0
65.0
60.0
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
3 min 2 line kmAverage center pointAverage center point
Time [s]1e-05 1e-04 1e-03 1e-02
Rh
oa
[O
hm
m]
10.0
100.0
1000.0 Average sounding, Rho-a
Raw voltage data
Time [s]1e-05 1e-04 1e-03 1e-02
Rh
oa
[O
hm
m]
10.0
100.0
1000.0 Average sounding, Rho-a
Altitude
Raw Voltage data
Gamle data
Time
11
:32
:55
11
:32
:50
11
:32
:45
11
:32
:40
11
:32
:35
11
:32
:30
11
:32
:25
11
:32
:20
11
:32
:15
11
:32
:10
11
:32
:05
11
:32
:00
11
:31
:55
11
:31
:50
11
:31
:45
11
:31
:40
11
:31
:35
11
:31
:30
11
:31
:25
11
:31
:20
11
:31
:15
11
:31
:10
11
:31
:05
11
:31
:00
11
:30
:55
11
:30
:50
11
:30
:45
11
:30
:40
11
:30
:35
11
:30
:30
11
:30
:25
11
:30
:20
11
:30
:15
11
:30
:10
11
:30
:05
11
:30
:00
Lo
g -
No
Un
it
1e+00
1e+01
1e+02
1e+03
1e+04
1e+05
Altitu
de
[m]
100.0
95.0
90.0
85.0
80.0
75.0
70.0
65.0
60.0
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
3 min 2 line kmAverage center pointAverage center point
Raw voltage data
Altitude
Averaged Voltage data
Nye data – lige filtre
Average center point
Time
11
:32
:55
11
:32
:50
11
:32
:45
11
:32
:40
11
:32
:35
11
:32
:30
11
:32
:25
11
:32
:20
11
:32
:15
11
:32
:10
11
:32
:05
11
:32
:00
11
:31
:55
11
:31
:50
11
:31
:45
11
:31
:40
11
:31
:35
11
:31
:30
11
:31
:25
11
:31
:20
11
:31
:15
11
:31
:10
11
:31
:05
11
:31
:00
11
:30
:55
11
:30
:50
11
:30
:45
11
:30
:40
11
:30
:35
11
:30
:30
11
:30
:25
11
:30
:20
11
:30
:15
11
:30
:10
11
:30
:05
11
:30
:00
Lo
g -
No
Un
it
1e+00
1e+01
1e+02
1e+03
1e+04
1e+05
Altitu
de
[m]
100.0
95.0
90.0
85.0
80.0
75.0
70.0
65.0
60.0
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
Time
11
:32
:55
11
:32
:50
11
:32
:45
11
:32
:40
11
:32
:35
11
:32
:30
11
:32
:25
11
:32
:20
11
:32
:15
11
:32
:10
11
:32
:05
11
:32
:00
11
:31
:55
11
:31
:50
11
:31
:45
11
:31
:40
11
:31
:35
11
:31
:30
11
:31
:25
11
:31
:20
11
:31
:15
11
:31
:10
11
:31
:05
11
:31
:00
11
:30
:55
11
:30
:50
11
:30
:45
11
:30
:40
11
:30
:35
11
:30
:30
11
:30
:25
11
:30
:20
11
:30
:15
11
:30
:10
11
:30
:05
11
:30
:00
Lo
g -
No
Un
it
1e+00
1e+01
1e+02
1e+03
1e+04
1e+05
Altitu
de
[m]
100.0
95.0
90.0
85.0
80.0
75.0
70.0
65.0
60.0
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
3 min 2 line kmAverage center point
Time [s]1e-05 1e-04 1e-03 1e-02
Rh
oa
[O
hm
m]
10.0
100.0
1000.0 Average sounding, Rho-a
Raw voltage Data
Time [s]1e-05 1e-04 1e-03 1e-02
Rh
oa
[O
hm
m]
10.0
100.0
1000.0 Average sounding, Rho-a
Altitude
Averaged voltage Data
Nye data – skrå filtre
Inversion Methodology LCI – soundings
Profil
TE M soundings - m odels
Inversion Methodology LCI – soundings
Add constraints – a variance between the model parameters
Profil
TEM soundings - models
Inversion Methodology LCI – soundings
Add constraints – a variance between the model parameters
Few layer parameterization – all parameters floating
Profil
TEM soundings - models
r1n r1
n+1
r2n r2
n+1
r3n r3
n+1
d1n d1
n+1
d2n d2
n+1
Inversion Methodology LCI – soundings
Add constraints – a variance between the model parameters
Smooth model parameterization – fixed layer boundaries
Profil
TEM soundings - models
r1n r1
n+1
r2n r2
n+1
rm
n rm
n+1
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