Fluxes of N2, O2, and CO2 in nearshore waters off Martha's Vineyard

Accurate, high-resolution time series measurements of aqueous CO2, O2, and N2 were used to investigate the fluxes and transformations of these gases in a complex and dynamic nearshore environment. The measurements were made at 5-m depth over 10 days in June 2002 at the Martha's Vineyard Observatory, MA (41°19.722′ N and 70°33.096′ W). The average depth of the water column at this location was 13 m. Supporting measurements include water temperature, salinity, fluorescence, and local meteorological conditions. For the analysis, the data set was partitioned into discrete events characterized by similar environmental conditions. Approximately 30% of the total data set was chosen for detailed analysis: two ‘wind events’ where 5