Date of Award

1-1-2017

Language

English

Document Type

Dissertation

Degree Name

Doctor of Philosophy (PhD)

College/School/Department

Department of Atmospheric and Environmental Sciences

Content Description

1 online resource (ii, 187 pages) : illustrations (some color), color maps.

Dissertation/Thesis Chair

Mathias Vuille

Committee Members

Allegra LeGrande, Brian Rose, Oliver Elison-Timm, Aiguo Dai

Keywords

climate, hydroclimate, isotopes, preciptiation, tropics, volcanoes, Volcanic eruptions, Hydrologic cycle, Climatology, Climatic changes

Subject Categories

Atmospheric Sciences | Climate | Physics

Abstract

Volcanic eruptions exert the most important radiative forcing on Earth’s climate during the pre-industrial interval of the last millennium. In this thesis, I investigate the role of volcanic eruptions in altering tropical climate, including temperature and rainfall. I primarily use forced transient simulations of the last millennium as a tool to explore how explosive volcanic events project onto the hydrologic cycle, as well as the imprint of water isotopologues (H216O, H218O) associated with rainfall. Attention is given to the South American continent specifically (in chapter 2), and to the entire tropics (in chapter 3).

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