Brief description: Southern Ocean seasonal net production from atmospheric and ocean data sets
Project: U.S. JGOFS Synthesis and Modeling
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Validated: yes
Version: 4 March 2002

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Description: Southern Ocean seasonal net production from atmospheric and ocean data sets

We propose to synthesize large-scale oceanic (dissolved oxygen, dissolved inorganic carbon, sea-surface temperature, mixed layer depth, heat flux) and atmospheric (O₂/N₂ ratio) datasets at on large scales in the Southern Hemisphere south of 30 S.  The chemical and physical datasets will be used to construct estimates of monthly, zonally-averag ed net community production of organic carbon in the ocean mixed layer.  Following these analyses, we will also investigate interannual relationships between those variables (O₂/N₂, SST, heat flux) which are available as continuous time-series with the goal of understanding interannual controls on production and carbon cycling.  Our study will clarify the magnitude of and large-scale controls on production and carbon flux in the Southern Ocean and provide a basis for intercomparison with independent estimates based on satellite-derived ocean color.  These studies will also establish the basis for using atmospheric observations for documenting and interpreting annual and interannual variations in the future.

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