Sökning: "magnetotelluric"

Visar resultat 1 - 5 av 8 uppsatser innehållade ordet magnetotelluric.

  1. 1. Developing data processing program for a new radio magnetotelluric (RMT) instrument

    Kandidat-uppsats, Uppsala universitet/Geofysik

    Författare :Elis Uebel; [2022]
    Nyckelord :RMT radio magnetotellurics matlab GUI;

    Sammanfattning : The radio magnetotellucic (RMT) method originates from (Tikhonov, 1950) and (Cagniard,1953) who discovered the possibility to estimate resistivity in the Earth’s subsurface using naturally occurring telluric currents. This through measuring the surface impedance of electromagnetic waves. LÄS MER

  3. 2. Comparison of data analysis methods KMSProTF and MsDEMPCA using Magnetotelluric data

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Einar Valtersson; [2020]
    Nyckelord :MV-analysis; Magnetotellurics; MsDEMPCA;

    Sammanfattning : In this work two ways of processing controlled-source magnetotelluric (MT) data were tried and compared against each other. The aim was to evaluate the differences between a multivariate-based processing method to a bivariate processing method. The software KMSProTF represents conventional processing using bivariate and robust statistics. LÄS MER

  4. 3. Geophysical investigation of the Arvidsjaur volcanics and the Archean-Proterozoic boundary

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Erik Bjänndal; [2019]
    Nyckelord :Laver SimPEG MT Magnetotelluric Magnetic Inversion;

    Sammanfattning : In this work the magnetic and magnetotelluric (MT) geophysical methods have been used to produce two 3D models for the Laver area in southern Norrbotten. A new discovery of a porphyry copper deposit located at the Lill-Laverberget was reported by Boliden in 2012. LÄS MER

  5. 4. Processing of Noisy Controlled Source Audio Magnetotelluric (CSAMT) Data

    Master-uppsats, Uppsala universitet/Geofysik

    Författare :Julia Fridlund; [2019]
    Nyckelord :CSAMT; noise; magnetotelluric transfer functions; robust processing; transients; bias; CSAMT; brus; magnetotelluriska överföringsfunktioner; robust processering; transienter; bias;

    Sammanfattning : Controlled Source Audio Magnetotellurics (CSAMT) is a geophysical method for characterizing the resistivity of the subsurface with the help of electromagnetic waves. The method is used for various purposes, such as geothermal- and hydrocarbon exploration, mineral prospecting and for investigation of groundwater resources. LÄS MER

  7. 5. Data processing of Controlled Source Audio Magnetotelluric (CSAMT) Data

    Kandidat-uppsats, Uppsala universitet/Geofysik

    Författare :Oskar Rydman; [2019]
    Nyckelord :CSAMT; detrending; coherency; transients; time series; processing; CSAMT; detrending; koherens; transienter; tidserier; processering;

    Sammanfattning : During this project three distinct methods to improve the data processing of Controlled Source Audio Magnetotellurics (CSAMT) data are implemented and their advantages and disadvantages are discussed. The methods in question are: Detrending the time series in the time domain, instead of detrending in the frequencydomain. LÄS MER