Pulses of Rapid Ventilation in the North Atlantic Surface Ocean During the Past Century
The Suess Effect is a gradual decrease of the 14 C/ 12 C ratio in tree rings from 1870 to 1950 that is attributed mostly to the burning of 14 C-free fossil fuels for energy. In contrast, pre-nuclear bomb high-precision measurements of 14 C/ 12 C ratios in banded corals from the North Atlantic Ocean...
Published in: | Science |
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Main Author: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
American Association for the Advancement of Science (AAAS)
1997
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Subjects: | |
Online Access: | http://dx.doi.org/10.1126/science.275.5305.1454 https://syndication.highwire.org/content/doi/10.1126/science.275.5305.1454 |
Summary: | The Suess Effect is a gradual decrease of the 14 C/ 12 C ratio in tree rings from 1870 to 1950 that is attributed mostly to the burning of 14 C-free fossil fuels for energy. In contrast, pre-nuclear bomb high-precision measurements of 14 C/ 12 C ratios in banded corals from the North Atlantic Ocean do not exhibit the expected Suess Effect. Instead, large biennial-to-decadal shifts in the 14 C/ 12 C ratios appear throughout the coral records. This pattern indicates that rapid pulses of increased mixing between surface and subsurface waters occurred in the North Atlantic Ocean during the past century. |
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