The first effort, a regional study, concerns annual biological enhancement along the Northeast U.S. continental shelfbreak during late spring to early summer. This striking biological structure is evident in eight years of satellite ocean color observations from the Coast Zone Color Scanner (Fig. 1). Using satellite ocean color and temperature, and in situ observations, I will illustrate the fundamental attributes, hydrographic/dynamical basis, and biogeochemical significance of this annual biological enhancement.
The second effort, a global study, concerns air-sea flux of carbon dioxide. In our efforts to understand air-sea exchange of this greenhouse gas, satellite instruments provide needed global observations. I will illustrate a model approach that brings together satellite observations with physical, chemical, and biological observation and theory within the infrastructure of an ocean general circulation model. Using monthly inputs, this model system yields reasonable seasonal and zonal distributions (Fig. 2), and annual net flux. Results emphasize the importance of accurate determination of fluxes in defining the spatial and temporal characteristics of oceanic sources and sinks.
Last updated: December 19, 2000