2023
DOI: 10.1029/2023gb007769
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Toward a Better Understanding of the Global Ocean Copper Distribution and Speciation Through a Data‐Constrained Model

Hengdi Liang,
James W. Moffett,
Seth G. John

Abstract: Copper (Cu) is an important micronutrient for marine organisms, which can also be toxic at elevated concentrations. Here, we present a new model of global ocean Cu biogeochemical cycling, constrained by GEOTRACES observations, with key processes including sources from rivers, dust, and sediments, biological uptake and remineralization of Cu, reversible scavenging of Cu onto sinking particles, conversion of Cu between labile and inert species, and ocean circulation. In order for the model to match observations,… Show more

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