RV Investigator IN2018_V02 (GIpr08, SOTS)

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Investigator (096U)
Cruise identifierIN2018_V02 (GIpr08, SOTS)
Cruise period2018-03-03 — 2018-03-21
Port of departureHobart, Australia
Port of returnHobart, Australia
ObjectivesIntegrated Monitoring Observing System Time Series automated moorings for climate and carbon cycle studies southwest of Tasmania (Chief Scientist: Professor Tom Trull, ACE-CRC): The Southern Ocean Time Series provides world-leading automated observations from deep-ocean moorings of the exchanges of heat, water, carbon dioxide, and oxygen between the ocean and atmosphere, and the physical and biological processes that control them. These results contribute to forward projections of anthropogenic climate warming, inform the setting of emissions targets, illuminate controls on climate variability, and provide a baseline for impacts on ocean pelagic ecology. Sensor data is returned live to the internet and samples are returned annually for further study in shore laboratories.

Subantarctic Biogeochemistry of Carbon and Iron, Southern Ocean Time Series site (Lead Principal Investigator: Professor Philip Boyd, UTAS): The Southern Ocean straddles the waters between Australia and Antarctica and has two distinct regions - the subantarctic and the polar seas. The latter is comprehensively studied by expeditions by Australia's Antarctic Division, whereas the subantarctic has received much less attention. This voyage aims to determine processes within the subantarctic environment that control productivity, foodwebs and cycles of elements such as carbon. Enhanced understanding will maximise investments, such as in ocean time-series in subpolar waters and enable better predictions to be made on how marine life and chemistry are controlled by both natural and human-made shifts in climate and ocean conditions.
Chief scientistThomas Trull (Antarctic Climate and Ecosystems Cooperative Research Centre)
ProjectGEOTRACES -Trace elements and their isotopes in the water column
Cruise reportRV Investigator IN2018_V02 (GIpr08, SOTS) cruise report investigator_in2018_v02.pdf (1.24 MB) 
Ocean/sea areas 
GeneralSouthern Ocean