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Eddy resolving nutrient ecodynamics in the global Parallel Ocean Program and connections with trace gases in the sulfur, halogen, and NMHC cycles
Author(s): Shaoping Chu; Scott Elliott
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Paper Abstract

Ecodynamics and the sea-air transfer of climate relevant trace gases are intimately coupled in the oceanic mixed layer. Ventilation of species such as dimethyl sulfide and methyl bromide constitutes a key linkage within the earth system. We are creating a research tool for the study of marine trace gas distributions by implementing coupled ecology-gas chemistry in the high resolution Parallel Ocean Program. The fundamental circulation model is eddy resolving, with cell sizes averaging 0.15 degree. Here we describe ecochemistry integration. Density dependent mortality and iron geochemistry have enhanced agreement with chlorophyll measurements. Indications are that dimethyl sulfide production rates must be adjusted for latitude dependence to match recent compilations. This may reflect the need for phytoplankton to conserve nitrogen by favoring sulfurous osmolytes. Global simulations are also available for carbonyl sulfide, the methyl halides and for nonmethane hydrocarbons. We discuss future applications including interaction with atmospheric chemistry models, high resolution biogeochemical snapshots and the study of open ocean fertilization.

Paper Details

Date Published: 22 December 2000
PDF: 6 pages
Proc. SPIE 4172, Remote Sensing of the Ocean and Sea Ice 2000, (22 December 2000); doi: 10.1117/12.411691
Show Author Affiliations
Shaoping Chu, Los Alamos National Lab. (United States)
Scott Elliott, Los Alamos National Lab. (United States)

Published in SPIE Proceedings Vol. 4172:
Remote Sensing of the Ocean and Sea Ice 2000
Charles R. Bostater Jr.; Rosalia Santoleri, Editor(s)

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