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The Behavior of 14C and 13C in Estuarine Water: Effects of In Situ CO2 Production and Atmospheric Exchange

Published online by Cambridge University Press:  18 July 2016

Elliott C Spiker
Elliott C Spiker*
Affiliation:
US Geological Survey, Reston, Virginia 22092
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Abstract

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The effects of nonconservative sources (inputs) and sinks (outputs) of carbon are indicated by the behavior of Δ14C and δ13C of the total dissolved inorganic carbon (ΣCO2) in San Francisco Bay and Chesapeake Bay. Isotopic distributions and model calculations indicate that in North San Francisco Bay the net CO2 flux to the atmosphere and carbon utilization in the water column are balanced by benthic production. Municipal waste appears to be a dominant source in South San Francisco Bav. In Chesapeake Bay, atmospheric exchange has increased the Δ14C and δ13C in the surface water. Decomposition of organic matter in the water column is indicated to be the dominant source of excess ΣCO2 in the deep water.

Type
Oceanography
Information
Radiocarbon , Volume 22 , Issue 3: Heidelberg , 1980 , pp. 647 - 654
Copyright
Copyright © The American Journal of Science

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