Electromagnetic Fields Induced by Ocean Currents

Abstract

This paper provides a comprehensive account of analytical results for computing electromagnetic fields that are induced by ocean sea water as a result of its motion relative to the geomagnetic field. The emphasis is on the characterization of magnetic field and magnetic field gradient spectra induced by internal waves and surface waves in a deep ocean environment. The theoretical results are formulated so as to be directly applicable to the computation of sea water generated magnetic noise and to the assessment of its deleterious effects on the sensitivity of magnetic sensors employed for magnetic anomaly detection over an open ocean. Magnetic field component and gradient spectra are computed both for stationary and moving sensor observation platforms.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1979
Accession Number
ADA085727

Entities

People

  • Wasyl Wasylkiwskyj

Organizations

  • Institute for Defense Analyses

Tags

Communities of Interest

  • Advanced Electronics
  • Sensors

DTIC Thesaurus Topics

  • Anomaly Detection
  • Computational Science
  • Detection
  • Detectors
  • Differential Equations
  • Electric Fields
  • Electromagnetic Fields
  • Electrostatic Fields
  • Group Velocity
  • Magnetic Anomaly Detection
  • Magnetic Detectors
  • Magnetic Fields
  • Measurement
  • Sea Water
  • Two Dimensional
  • Wave Phenomena
  • Wave Propagation

Readers

  • Acoustical Oceanography.
  • Computational Modeling and Simulation
  • Space/Atmospheric Physics.