Tidal dissipation and the strength of the Earth’s internal magnetic field

Bruce A. Buffett ()
Additional contact information
Bruce A. Buffett: University of California

Nature, 2010, vol. 468, issue 7326, 952-954

Abstract: Magnetic field strength within Earth's core It is known that the magnetic field we experience at Earth's surface is a fraction of the strength of that prevailing inside the core, but the internal magnetic field cannot be measured directly. Bruce Buffett presents a new indirect estimate for the magnetic field strength within Earth's core based on measurements of tidal dissipation. The results suggest that previously reported evidence of anomalous dissipation in Earth's nutations can be explained with a core-averaged field of 2.5 millitesla, eliminating the need for high fluid viscosity or a stronger magnetic field at the inner-core boundary.

Date: 2010
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/nature09643 Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:nature:v:468:y:2010:i:7326:d:10.1038_nature09643

Ordering information: This journal article can be ordered from
https://www.nature.com/

DOI: 10.1038/nature09643

Access Statistics for this article

Nature is currently edited by Magdalena Skipper

More articles in Nature from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().