Dissolved inorganic radiocarbon in the North Pacific Ocean and Sargasso Sea

Ellen R.M. Druffel; James E. Bauer; Sheila Griffin; Steven R. Beaupré; Jeomshik Hwang

doi:10.1016/j.dsr.2007.12.007

Dissolved inorganic radiocarbon in the North Pacific Ocean and Sargasso Sea

Ellen R.M. Druffel
, James E. Bauer
, Sheila Griffin
, Steven R. Beaupré
, Jeomshik Hwang

Office of the Dean SOMAS

University of California at Irvine
College of William and Mary

Research output: Contribution to journal › Article › peer-review

33 Scopus citations

Abstract

We present radiocarbon measurements of dissolved inorganic carbon (DIC) in depth profiles from reoccupations of our central North Pacific Ocean and Sargasso Sea (SS) sites. From 1985 to 1999, an increase in Δ¹⁴C values of 6-17‰ was measured between 1150 and 2400 m depth in the North Central Pacific. Natural changes in deep circulation are likely responsible for variability of Δ¹⁴C signatures in the deep ocean, though we cannot rule out the presence of bomb ¹⁴C at this depth range. Bomb ¹⁴C had increased in the deep SS from 1989 to 2000; this is the result of southward transport of North Atlantic Deep Water (NADW) to this site.

Original language	English
Pages (from-to)	451-459
Number of pages	9
Journal	Deep-Sea Research Part I: Oceanographic Research Papers
Volume	55
Issue number	4
DOIs	https://doi.org/10.1016/j.dsr.2007.12.007
State	Published - Apr 2008

Keywords

Bomb radiocarbon
Deep circulation
Dissolved inorganic carbon
Radiocarbon

Access to Document

10.1016/j.dsr.2007.12.007

Cite this

@article{b5955371fe9d45a3b3743b9b85047fd8,

title = "Dissolved inorganic radiocarbon in the North Pacific Ocean and Sargasso Sea",

abstract = "We present radiocarbon measurements of dissolved inorganic carbon (DIC) in depth profiles from reoccupations of our central North Pacific Ocean and Sargasso Sea (SS) sites. From 1985 to 1999, an increase in Δ14C values of 6-17‰ was measured between 1150 and 2400 m depth in the North Central Pacific. Natural changes in deep circulation are likely responsible for variability of Δ14C signatures in the deep ocean, though we cannot rule out the presence of bomb 14C at this depth range. Bomb 14C had increased in the deep SS from 1989 to 2000; this is the result of southward transport of North Atlantic Deep Water (NADW) to this site.",

keywords = "Bomb radiocarbon, Deep circulation, Dissolved inorganic carbon, Radiocarbon",

author = "Druffel, \{Ellen R.M.\} and Bauer, \{James E.\} and Sheila Griffin and Beaupr{\'e}, \{Steven R.\} and Jeomshik Hwang",

year = "2008",

month = apr,

doi = "10.1016/j.dsr.2007.12.007",

language = "English",

volume = "55",

pages = "451--459",

journal = "Deep-Sea Research Part I: Oceanographic Research Papers",

issn = "0967-0637",

number = "4",

}

TY - JOUR

T1 - Dissolved inorganic radiocarbon in the North Pacific Ocean and Sargasso Sea

AU - Druffel, Ellen R.M.

AU - Bauer, James E.

AU - Griffin, Sheila

AU - Beaupré, Steven R.

AU - Hwang, Jeomshik

PY - 2008/4

Y1 - 2008/4

N2 - We present radiocarbon measurements of dissolved inorganic carbon (DIC) in depth profiles from reoccupations of our central North Pacific Ocean and Sargasso Sea (SS) sites. From 1985 to 1999, an increase in Δ14C values of 6-17‰ was measured between 1150 and 2400 m depth in the North Central Pacific. Natural changes in deep circulation are likely responsible for variability of Δ14C signatures in the deep ocean, though we cannot rule out the presence of bomb 14C at this depth range. Bomb 14C had increased in the deep SS from 1989 to 2000; this is the result of southward transport of North Atlantic Deep Water (NADW) to this site.

AB - We present radiocarbon measurements of dissolved inorganic carbon (DIC) in depth profiles from reoccupations of our central North Pacific Ocean and Sargasso Sea (SS) sites. From 1985 to 1999, an increase in Δ14C values of 6-17‰ was measured between 1150 and 2400 m depth in the North Central Pacific. Natural changes in deep circulation are likely responsible for variability of Δ14C signatures in the deep ocean, though we cannot rule out the presence of bomb 14C at this depth range. Bomb 14C had increased in the deep SS from 1989 to 2000; this is the result of southward transport of North Atlantic Deep Water (NADW) to this site.

KW - Bomb radiocarbon

KW - Deep circulation

KW - Dissolved inorganic carbon

KW - Radiocarbon

UR - https://www.scopus.com/pages/publications/41549120623

U2 - 10.1016/j.dsr.2007.12.007

DO - 10.1016/j.dsr.2007.12.007

M3 - Article

AN - SCOPUS:41549120623

SN - 0967-0637

VL - 55

SP - 451

EP - 459

JO - Deep-Sea Research Part I: Oceanographic Research Papers

JF - Deep-Sea Research Part I: Oceanographic Research Papers

IS - 4

ER -

Dissolved inorganic radiocarbon in the North Pacific Ocean and Sargasso Sea

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this