Secular variation of the geomagnetic virtual dipole field during the last 2000 years as inferred from the spherical harmonic analysis of the available archeomagnetic data

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Recently excellent archeomagnetic data sequences have been bublished from several parts of the world. Using these sequences, an attempt is made to trace the secular variation of the virtual geomagnetic dipole field characterized by the three first order spherical harmonic coefficients {Mathematical expression}. The archeomagnetic data (declination, inclination and total intensity) are transformed into the first order coefficients mentioned by a simple mathematical method. The secular variations of these coefficients, however, contain both dipole and non-dipole components. The separation of these is also attempted.

Original languageEnglish
Pages (from-to)163-176
Number of pages14
JournalPure and Applied Geophysics PAGEOPH
Volume81
Issue number1
DOIs
Publication statusPublished - Dec 1 1970

ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology

Fingerprint Dive into the research topics of 'Secular variation of the geomagnetic virtual dipole field during the last 2000 years as inferred from the spherical harmonic analysis of the available archeomagnetic data'. Together they form a unique fingerprint.

  • Cite this