Coherent rainfall response to middle- and late-Holocene climate variability across the mid-latitude South Pacific-Reference-Cited by-同舟云学术

Coherent rainfall response to middle- and late-Holocene climate variability across the mid-latitude South Pacific

Published:2013-03-07 Issue:7 Volume:23 Page:1002-1007
ISSN:0959-6836
Container-title:The Holocene
language:en
Short-container-title:The Holocene

Author:

Gomez Basil¹,Carter Lionel²,Trustrum Noel A³,Page Michael J³,Orpin Alan R⁴

Affiliation:

1. University of Hawai’i at Mānoa, USA

2. Victoria University of Wellington, New Zealand

3. GNS Science, New Zealand

4. National Institute of Water and Atmospheric Research, New Zealand

Abstract

Intercorrelated terrestrial and marine records from New Zealand, Chile and Argentina provide the first evidence of a coherent pan-Pacific response to the growing influence that El Niño-Southern Oscillation (ENSO) and multicentury variations in the interaction between ENSO and the Southern Annular Mode (SAM) exerted on rainfall in the Southern Hemisphere mid-latitudes during the middle and late Holocene. Rainfall is also strongly influenced by moisture originating from the prevailing southern westerly winds (SWW), and we find that the variations in rainfall forced by the interaction of ENSO and the SAM are superimposed on an underlying long-term trend induced by a temporal strengthening of the westerly circulation. We conclude that the evolution of rainfall across the South Pacific reflects the influence seasonal insolation exerts on: (1) ENSO/SAM interactions; and (2) the strength of the SWW.

Publisher

SAGE Publications

Subject

Paleontology,Earth-Surface Processes,Ecology,Archaeology,Global and Planetary Change

Link

http://journals.sagepub.com/doi/pdf/10.1177/0959683613479679

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