The role of the large-scale Arctic Ocean circulation in the transport of contaminants

Peter Schlosser, James H. Swift, Diana Lewis, Stephanie L. Pfirman

Research output: Contribution to journalArticle

96 Citations (Scopus)

Abstract

The key features of the large-scale circulation of the Arctic Ocean are reviewed based on distributions of hydrographic parameters and natural and anthropogenic trace substances. Salinity and mass balances, as well as a combination of the tracers tritium and δ18O, suggest a mean residence time of the shelf waters in the Siberian seas of about 3 years. Potential pathways of pollutants released to the Siberian shelf seas from the dumpsites or from river runoff are inferred from the distributions of δ18O and salinity. Transit times needed for dissolved contaminants to cross the central Arctic basins (several years to one or two decades in near-surface waters) and mean residence times of contaminants in the intermediate (several decades) and deep waters (several centuries) are estimated from the distribution of transient tracers (tritium and its radioactive decay product, 3He) and "steady-state" tracers (14C and 39Ar).

Original languageEnglish (US)
Pages (from-to)1341-1367
Number of pages27
JournalDeep-Sea Research Part II
Volume42
Issue number6
DOIs
StatePublished - Jan 1 1995
Externally publishedYes

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tracer
tritium
pollutant
residence time
salinity
radioactive decay
shelf sea
mass balance
deep water
runoff
surface water
basin
river
Arctic Ocean
ocean circulation
distribution
water
decay product
sea
parameter

ASJC Scopus subject areas

  • Oceanography

Cite this

The role of the large-scale Arctic Ocean circulation in the transport of contaminants. / Schlosser, Peter; Swift, James H.; Lewis, Diana; Pfirman, Stephanie L.

In: Deep-Sea Research Part II, Vol. 42, No. 6, 01.01.1995, p. 1341-1367.

Research output: Contribution to journalArticle

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