Simultaneous quantification of active, gravitational and DOC fluxes at range of contrasting sites

Simultaneous quantification of active gravitational and DOC fluxes at range of contrasting sites At multiple sites the three fluxes will be quantified simultaneously active flux using new acoustic observations of migrating organisms together with published sizebased relationships of carbon release gravitational flux using the prototype optical system deliverable 42 and physical samples eg from snowcatchers the DOC flux using water samples to quantify DOC concentrations together with estimates of turbulent mixing from historical data model output or opportunistic microstructure observations