scholarly journals Linkages among runoff, dissolved organic carbon, and the stable oxygen isotope composition of seawater and other water mass indicators in the Arctic Ocean

2005 ◽  
Vol 110 (G2) ◽  
pp. n/a-n/a ◽  
Author(s):  
Lee W. Cooper ◽  
Ronald Benner ◽  
James W. McClelland ◽  
Bruce J. Peterson ◽  
Robert M. Holmes ◽  
...  
2016 ◽  
Vol 30 (7) ◽  
pp. 1054-1068 ◽  
Author(s):  
George Tanski ◽  
Nicole Couture ◽  
Hugues Lantuit ◽  
Antje Eulenburg ◽  
Michael Fritz

2004 ◽  
Vol 31 (5) ◽  
pp. n/a-n/a ◽  
Author(s):  
Ronald Benner ◽  
Bryan Benitez-Nelson ◽  
Karl Kaiser ◽  
Rainer M. W. Amon

2012 ◽  
Vol 9 (3) ◽  
pp. 1217-1224 ◽  
Author(s):  
D. R. Griffith ◽  
A. P. McNichol ◽  
L. Xu ◽  
F. A. McLaughlin ◽  
R. W. Macdonald ◽  
...  

Abstract. Arctic warming is projected to continue throughout the coming century. Yet, our currently limited understanding of the Arctic Ocean carbon cycle hinders our ability to predict how changing conditions will affect local Arctic ecosystems, regional carbon budgets, and global climate. We present here the first set of concurrent, full-depth, dual-isotope profiles for dissolved inorganic carbon (DIC), dissolved organic carbon (DOC), and suspended particulate organic carbon (POCsusp) at two sites in the Canada Basin of the Arctic Ocean. The carbon isotope composition of sinking and suspended POC in the Arctic contrasts strongly with open ocean Atlantic and Pacific sites, pointing to a combination of inputs to Arctic POCsusp at depth, including surface-derived organic carbon (OC), sorbed/advected OC, and OC derived from in situ DIC fixation. The latter process appears to be particularly important at intermediate depths, where mass balance calculations suggest that OC derived from in situ DIC fixation contributes up to 22% of POCsusp. As in other oceans, surface-derived OC is still a dominant source to Arctic POCsusp. Yet, we suggest that significantly smaller vertical POC fluxes in the Canada Basin make it possible to see evidence of DIC fixation in the POCsusp pool even at the bulk isotope level.


2009 ◽  
Vol 23 (4) ◽  
pp. n/a-n/a ◽  
Author(s):  
M. Manizza ◽  
M. J. Follows ◽  
S. Dutkiewicz ◽  
J. W. McClelland ◽  
D. Menemenlis ◽  
...  

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