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Raimund Muscheler

Raimund Muscheler

Professor

Raimund Muscheler

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

Författare

  • Thomas M. Marchitto
  • Raimund Muscheler
  • Joseph D. Ortiz
  • Jose D. Carriquiry
  • Alexander van Geen

Summary, in 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.

Avdelning/ar

  • Kvartärgeologi
  • MERGE: ModElling the Regional and Global Earth system

Publiceringsår

2010

Språk

Engelska

Sidor

1378-1381

Publikation/Tidskrift/Serie

Science

Volym

330

Issue

6009

Dokumenttyp

Artikel i tidskrift

Förlag

American Association for the Advancement of Science

Ämne

  • Geology

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1095-9203