March 4, 2010 Journal article Open Access

M. Gambetta

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  "@id": "https://doi.org/10.4401/ag-4641", 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "name": "M. Gambetta"
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  "datePublished": "2010-03-04", 
  "description": "This paper proposes a digital enhancement tool for magnetic anomaly maps. The magnetic anomaly map is decomposed<br>by means of Eigenvalue Decomposition into a number of orthogonal bases. The dataset is then filtered<br>accordingly to a specific variance pattern. The dataset is decomposed and the eigenvalues population is inspected<br>so that the variance is evaluated yielding the definition of two thresholds. Subsequently, the dataset is<br>reconstructed into three subsets which hold different features respectively. The proposed filtering procedure is<br>first tested with a synthetic signal and then applied to the data of Cape Roberts (Antarctica) aeromagnetic survey,<br>flown over an off-shore rift basin. The proposed method appears to be efficient in noise removal and acts as<br>a digital enhancement tool which provides TMI anomaly maps revealing hidden lineaments, otherwise not visible.<br>The methodology effectiveness as a hidden lineaments detection tool has been checked against independent<br>data.", 
  "headline": "Modal decomposition of magnetic maps: the case of Cape Roberts aeromagnetic survey, Antarctica", 
  "identifier": "https://doi.org/10.4401/ag-4641", 
  "image": "https://zenodo.org/static/img/logos/zenodo-gradient-round.svg", 
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  "keywords": [
    "Rural Digital Europe", 
    "NEANIAS Atmospheric Research Community", 
    "Geophysics"
  ], 
  "license": "", 
  "name": "Modal decomposition of magnetic maps: the case of Cape Roberts aeromagnetic survey, Antarctica", 
  "url": "https://www.openaccessrepository.it/record/130211"
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