Magnetic Anomalies of the Ocean

Abstract

There are two categories of magnetic anomalies associated with the ocean. Primary anomalies are induced directly by interaction of ocean flow with the geomagnetic field, or induced by ionospheric fluctuations, or are the expression of the remnant magnetization of the ocean floor rocks. Secondary anomalies are created by interaction of electric current flow in the ocean, with irregularities of the electrical conductivity distribution within the ocean, or with irregularities of the boundaries of the ocean (seafloor ridges and troughs or ocean surface waves). Our focus in this report is on secondary anomalies, although some attention is paid to primary effects for completeness.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1983
Accession Number
ADA139602

Entities

People

  • Charles S. Cox
  • Peter D. Young

Organizations

  • Scripps Institution of Oceanography

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms

DTIC Thesaurus Topics

  • Algorithms
  • Coordinate Systems
  • Dielectrics
  • Electric Current
  • Electric Fields
  • Electrical Conductivity
  • Electromagnetic Fields
  • Equations
  • Internal Waves
  • Magnetic Anomalies
  • Magnetic Fields
  • Magnetic Properties
  • Oceans
  • Ridges
  • Seabed
  • Topography
  • Two Dimensional

Fields of Study

  • Environmental science

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Oceanography.