Dataset Information

A Southern Ocean trigger for Northwest Pacific ventilation during the Holocene?

ABSTRACT: Holocene ocean circulation is poorly understood due to sparsity of dateable marine archives with submillennial-scale resolution. Here we present a record of mid-depth water radiocarbon contents in the Northwest (NW) Pacific Ocean over the last 12.000 years, which shows remarkable millennial-scale variations relative to changes in atmospheric radiocarbon inventory. Apparent decoupling of these variations from regional ventilation and mixing processes leads us to the suggestion that the mid-depth NW Pacific may have responded to changes in Southern Ocean overturning forced by latitudinal displacements of the southern westerly winds. By inference, a tendency of in-phase related North Atlantic and Southern Ocean overturning would argue against the development of a steady bipolar seesaw regime during the Holocene.

SUBMITTER: Rella SF

PROVIDER: S-EPMC4027855 | biostudies-other | 2014

REPOSITORIES: biostudies-other

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A Southern Ocean trigger for Northwest Pacific ventilation during the Holocene?

Rella S F SF Uchida M M

Scientific reports 20140217

Holocene ocean circulation is poorly understood due to sparsity of dateable marine archives with submillennial-scale resolution. Here we present a record of mid-depth water radiocarbon contents in the Northwest (NW) Pacific Ocean over the last 12.000 years, which shows remarkable millennial-scale variations relative to changes in atmospheric radiocarbon inventory. Apparent decoupling of these variations from regional ventilation and mixing processes leads us to the suggestion that the mid-depth ...[more]

PMID: 24509792

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Dataset Information

A Southern Ocean trigger for Northwest Pacific ventilation during the Holocene?

Publications

A Southern Ocean trigger for Northwest Pacific ventilation during the Holocene?

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