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Magnetic Data Enhancements and Depth Estimation

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Encyclopedia of Solid Earth Geophysics

Part of the book series: Encyclopedia of Earth Sciences Series ((EESS))

Synonyms

Magnetic data processing

Definition

Magnetic data are measurements of the magnetic field (generally of its intensity). Corrections of magnetic data are processing operations designed to remove unwanted features in the data. Enhancements of magnetic field data are processing operations designed to preferentially accentuate the expression of a selected magnetization at the expense of others.

Introduction

Measurement of the earth’s magnetic field is used in exploration geophysics as a remote-sensing method to investigate subsurface distributions of magnetization (see Magnetic Methods, Surface ). The measurements require correction to eliminate artifacts and to remove the primary core field of the earth, thereby improving the expression of local field variations due to upper crustal magnetizations. These corrections are applied to produce clean and robust output suitable for interpretation (see Magnetic Anomalies, Interpretation ). For specific interpretation objectives,...

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Authors and Affiliations

  1. CSIRO, Locked Bag 10, 3169, Clayton, South VIC, Australia

    Clive Foss

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  1. Clive Foss
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Editor information

Editors and Affiliations

  1. National Geophysical Research Institute, Council of Scientific and Industrial Research, Hyderabad, India

    Harsh K. Gupta

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Foss, C. (2011). Magnetic Data Enhancements and Depth Estimation. In: Gupta, H.K. (eds) Encyclopedia of Solid Earth Geophysics. Encyclopedia of Earth Sciences Series. Springer, Dordrecht. https://doi.org/10.1007/978-90-481-8702-7_104

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