Sensitivity of (super 234)Th export to physical processes in the central equatorial Pacific

A study was conducted to analyze the sensitivity of the computed sinking flux of (super 234)Th in the central equatorial Pacific to physical processes and scavenging mechanism. A meridional and vertical advection and diffusion field was imposed on a dissolved and particulate (super 234)Th cycle. Results indicated that (super 234)Th deficiencies near the equator were significantly influenced by the vertical advection and horizontal diffusion.