Objective 1:
Concurrent determination of physics (ADCP, temperature, buoy drift, SF6) and biogeochemistry (nutrients, Chl a, AFC) will enable quantification of upwelling and filament dispersion, and determination of horizontal and vertical diffusivity, shear and volume transport. Co-ordinated measurements of N2O, pCO2, CH4, DMS, O2, CO and iodocarbons with transfer velocity measurements (3He) will constrain regional air-sea fluxes and offshore transport. Filament strength and periodicity will be determined using MODIS remote sensing. Stable isotopic characterisation of N2O and CH4 will quantify the upwelling source of these gases.