The United States Joint Global Ocean Flux Study is a national component of international JGOFS and an integral part of global climate change research.

U.S. JGOFS: History and Mission

The U.S. JGOFS program, a component of the U.S Global Change Research Program, grew out of the recommendations of a National Academy of Sciences workshop in 1984. The international program, which has more than 30 participating nations, began three years later under the auspices of the Scientific Committee on Oceanic Research (SCOR). In 1989, JGOFS became a core program of the International Geosphere-Biosphere Programme (IGBP).

JGOFS has two primary goals:

  1. To determine and understand on a global scale the processes controlling the time-varying fluxes of carbon and associated biogenic elements in the ocean and to evaluate the related exchanges with the atmosphere, sea floor and continental boundaries;
  2. To develop a capability to predict on a global scale the response of oceanic biogeochemical processes to anthropogenic perturbations, in particular those related to climate change.

The strategy for addressing these goals has five major components:

  1. a global survey of oceanic CO2 and the bio-optical properties of the surface ocean, coordinated with the World Ocean Circulation Experiment (WOCE);
  2. long-term time-series observations at key oceanic sites;
  3. a series of studies of biogeochemical processes in parts of the ocean that lend themselves to effective observation of particular phenomena;
  4. the development of models to assimilate results, produce large-scale descriptions and predict responses to future disturbances;
  5. the development of an accessible, comprehensive biogeochemical database.
A summary overview and detailed description of the program are also available.
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