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Filtrering og LCI inversion Esben Auken HydroGeophysics Group Department of Earth Sciences, University of Aarhus, Denmark www.hgg.au.dk.

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Presentation on theme: "Filtrering og LCI inversion Esben Auken HydroGeophysics Group Department of Earth Sciences, University of Aarhus, Denmark www.hgg.au.dk."— Presentation transcript:

1 Filtrering og LCI inversion Esben Auken HydroGeophysics Group Department of Earth Sciences, University of Aarhus, Denmark www.hgg.au.dk

2  Filtering of couplings from raw data  Averaging core set up  Filtering of noise filled data from averaged data Processeringsindstillinger l GPS data l Angle data l Altitude data l Voltage data

3 Filtrering af data – lavmoment z-data l Flyvehøjde er 25 – 35 m l Stærk korelation imellem flyverhøjde og signalniveau Altitude of Tx coil Raw Voltage Data

4 3 min  2 line km Average center point Average sounding, Rho-a Raw voltage data Average sounding, Rho-a Altitude Raw Voltage data Gamle data

5 3 min  2 line km Average center point Raw voltage data Altitude Averaged Voltage data Nye data – lige filtre

6 Average center point 3 min  2 line km Average center point Average sounding, Rho-a Raw voltage Data Average sounding, Rho-a Altitude Averaged voltage Data Nye data – skrå filtre

7 Inversion Methodology l LCI – soundings

8 Inversion Methodology l LCI – soundings l Add constraints – a variance between the model parameters

9 Inversion Methodology l LCI – soundings l Add constraints – a variance between the model parameters l Few layer parameterization – all parameters floating

10 Inversion Methodology l LCI – soundings l Add constraints – a variance between the model parameters l Smooth model parameterization – fixed layer boundaries


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