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Filtrering og LCI inversion

Filtrering og LCI inversion. Esben Auken. HydroGeophysics Group Department of Earth Sciences, University of Aarhus, Denmark www.hgg.au.dk. Processeringsindstillinger. GPS data Angle data Altitude data Voltage data. Filtering of couplings from raw data Averaging core set up

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Filtrering og LCI inversion

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

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

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

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

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

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

  7. Inversion Methodology • LCI – soundings

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

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

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

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