Reanalysis of ancient eclipse, astronomic and geodetic data: A possible route to resolving the enigma of global sea-level rise

Jerry X. Mitrovica, John Wahr, Isamu Matsuyama, Archie Paulson, Mark E. Tamisiea

Research output: Contribution to journalArticle

43 Scopus citations

Abstract

Predictions of the Earth's response to the ice age appear to simultaneously reconcile a set of astronomical, geodetic and ancient eclipse observations related to changes in rotation, thus ruling out ice melting as a major contributor to 20th century sea-level rise. We demonstrate that the reconciliation disappears when an improved theory of rotational stability is applied. Furthermore, our reanalysis of longer satellite records renders previous estimates of the secular change in rotation rate suspect. The updated ice-age predictions and observations permit an anomalous 20th century ice flux of ∼1 mm/yr equivalent sea-level rise. Thus, the full suite of Earth rotation observations are consistent with a connection between climatic warming and recent melting of ice reservoirs.

Original languageEnglish (US)
Pages (from-to)390-399
Number of pages10
JournalEarth and Planetary Science Letters
Volume243
Issue number3-4
DOIs
StatePublished - Mar 30 2006
Externally publishedYes

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Keywords

  • Ancient eclipses
  • Earth rotation
  • Glacial rebound
  • Global sea level
  • Polar wander

ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science

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