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Testing the influence of the Central American Seaway on orbitally forced Northern Hemisphere glaciation

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Klocker, A and Prange, M and Schulz, M (2005) Testing the influence of the Central American Seaway on orbitally forced Northern Hemisphere glaciation. Geophysical Research Letters, 32 (L03703). ISSN 0094-8276

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Abstract

Utilizing a climate model of intermediate complexity, we test the hypothesis that the Pliocene closure of the Central American Seaway was a necessary precondition for orbitally triggered Northern Hemisphere glaciation. We conduct a series of sensitivity experiments in order to analyze the isolated and combined effects of Panama
closure and orbital forcing on Northern Hemisphere perennial snow cover. While orbital forcing efficiently controls the extension of perennial snow cover, the model results suggest that the closure of the Central American Seaway did not intensify orbitally forced glaciation in high northern latitudes.

Item Type: Article
Journal or Publication Title: Geophysical Research Letters
ISSN: 0094-8276
Identification Number - DOI: 10.1029/2004GL021564
Copyright Holders: American Geophysical Union
Date Deposited: 30 Aug 2015 23:08
Last Modified: 30 Aug 2015 23:08
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