Menu

Javascript is not activated in your browser. This website needs javascript activated to work properly.
You are here

Dynamical Response of the Tropical Pacific Ocean to Solar Forcing During the Early Holocene

Author:
  • Thomas M. Marchitto
  • Raimund Muscheler
  • Joseph D. Ortiz
  • Jose D. Carriquiry
  • Alexander van Geen
Publishing year: 2010
Language: English
Pages: 1378-1381
Publication/Series: Science
Volume: 330
Issue: 6009
Document type: Journal article
Publisher: The American Association for the Advancement of Science

Abstract english

We present a high-resolution magnesium/calcium proxy record of Holocene sea surface temperature (SST) from off the west coast of Baja California Sur, Mexico, a region where interannual SST variability is dominated today by the influence of the El Nino-Southern Oscillation (ENSO). Temperatures were lowest during the early to middle Holocene, consistent with documented eastern equatorial Pacific cooling and numerical model simulations of orbital forcing into a La Nina-like state at that time. The early Holocene SSTs were also characterized by millennial-scale fluctuations that correlate with cosmogenic nuclide proxies of solar variability, with inferred solar minima corresponding to El Nino-like (warm) conditions, in apparent agreement with the theoretical "ocean dynamical thermostat" response of ENSO to exogenous radiative forcing.

Keywords

  • Geology

Other

Published
  • MERGE
  • ISSN: 1095-9203
Raimund Muscheler
E-mail: raimund.muscheler [at] geol.lu.se

Professor

Quaternary Sciences

+46 46 222 04 54

479

Sölvegatan 12, Lund

16