RV Investigator Voyage IN2023_V01 POC and Biogenic Silica from Underway Samples Data

This record describes particulate organic carbon (POC) and biogenic silica data collected during the Marine National Facility (MNF) RV Investigator voyage IN2023_V01, titled Antarctic Bottom Water production in the past: Records from marine sediments, Cape Darnley, East Antarctica. The voyage took place between 25 January and 2 March 2023 (AEST), departing from Fremantle and returning to Hobart

The voyage investigated past and present processes controlling the pathways, formation and geochemical characteristics of Antarctic Bottom Water (AABW) off Cape Darnley, East Antarctica, with survey activities focused on the Wild and Daly canyons and adjacent sediment drifts.

The dataset contains analyses of samples collected from the uncontaminated surface underway seawater supply aboard RV Investigator during the transit from Perth to Cape Darnley. Samples were collected to characterise surface-ocean particles across the oceanographic gradients of the Southern Ocean, with measurements including particulate organic carbon and biogenic silica.