Work

Volcanic and Solar Forcing of the Tropical Pacific over the Past 1000 Years

Year: 2005

Type: article

Abstract: The response of El Niño to natural radiative forcing changes over the past 1000 yr is investigated based on numerical experiments employing the Zebiak–Cane model of the tropical Pacific coupled ocean–atmosphere system. Previously published empirical results demonstrating a statistically significant tendency toward El Niño conditions in response to past volcanic radiative forcing are reproduced in the model experiments. A combination of responses to past changes in volcanic and solar radiative forcing closely reproduces changes in the mean state and interannual variability in El Niño in past centuries recorded from fossil corals. The dynamics of El Niño thus appear to have played an important role in the response of the global climate to past changes in radiative forcing.

Source: Journal of Climate

DOI: 10.1175/jcli-3276.1

Authors: Michael E. Mann, Mark A. Cane, Stephen E. Zebiak, Amy Clement

Institutions: University of Virginia, Lamont-Doherty Earth Observatory, Columbia University, University of Miami

Language: English

Topic: Climate variability and models

Subfield: Global and Planetary Change

Field: Environmental Science

Domain: Physical Sciences

SDG: Climate action

Open Access status: bronze

Funders: National Science Foundation, National Oceanic and Atmospheric Administration