
Raimund Muscheler
Professor

Dynamical Response of the Tropical Pacific Ocean to Solar Forcing During the Early Holocene
Author
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.
Department/s
- Quaternary Sciences
- MERGE: ModElling the Regional and Global Earth system
Publishing year
2010
Language
English
Pages
1378-1381
Publication/Series
Science
Volume
330
Issue
6009
Document type
Journal article
Publisher
American Association for the Advancement of Science (AAAS)
Topic
- Geology
Status
Published
ISBN/ISSN/Other
- ISSN: 1095-9203