Research voyages 2015

Voyage #, date & ports

Voyage summary

IN2015_V01

20-30 March 2015

Hobart to Hobart

Integrated 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.

Plan

Summary

Scientific Highlights

IN2015_T01

10-13 May 2015

Hobart to Sydney

Transit Hobart to Sydney

Plan

IN2015_V02

15-26 May 2015

Sydney to Brisbane

Sustained monitoring of the East Australian Current: Mass, heat and freshwater transports (Chief Scientist: Dr Bernadette Sloyan, CSIRO)

The East Australian Current, a southward flow off eastern Australia, is one of the major global western boundary currents.  The EAC is the dominant mechanism for the redistribution of heat and freshwater between the ocean and atmosphere in the Australian region; it is a vital component of the eastern Australian coastal ecosystem.  The mooring array will monitor in the mass, heat and freshwater transported of EAC, which is central to our understanding of how climate signals are communicated through the ocean.

Plan

Summary

Scientific Highlights

IN2015_V03

2-18 June 2015

Brisbane to Sydney

Submesoscale processes - billows and eddies - along the productive shelf by the East Australian Current (Chief Scientist: Professor Iain Suthers, UNSW)

The East Australian Current is our strongest ocean current that affects the livelihoods of most Australians, from climate and weather, to fisheries and tourism.  It is our closest current, sometimes only 15 km offshore, and it has strengthened in recent decades.  The ecological effects of this current are unknown, but one process (which is well recognised off eastern Japan) is the drawing of coastal water offshore, including plankton and larval fish.  Is this natural process a loss to the ecosystem or an unappreciated nursery ground for coastal fish stocks?

Plan

Summary

Scientific Highlights

IN2015_T02

22-25 June 2015

Sydney to Hobart

Transit Sydney to Hobart

Plan

IN2015_C01

25 October-
25 November 2015

Hobart to Port Lincoln

Great Australian Bight deep water geological and benthic ecology program (Chief Scientist:  Dr Andrew Ross, CSIRO)

The Ceduna sub-basin is the product of rifting followed by the subsequent Southern Ocean seafloor spreading between Australia and Antarctica. The rifting created a narrow seaway between Australia and Antarctica, which was initially filled by two large deltaic super sequences (represented by the Tiger and Hammerhead super sequences respectively). Decreased sediment supply followed this period, during which commencement of fast seafloor spreading led to the initiation of widespread igneous activity and the development of a large number of volcanoes across the basin. Subsequent low sedimentation rates combined with continued subsidence have created the current modern deep water Ceduna sub-basin geomorphology.

Plan

Summary

Scientific Highlights

IN2015_C02

29 November-
22 December 2015

Port Lincoln to Fremantle

GAB deep-water pelagic and benthic ecosystem study (Chief Scientist: Dr Rudy Kloser, CSIRO)

The voyage is designed to characterise deep-water pelagic and benthic community structure and identify key ecological processes in the central and eastern Great Australian Bight (GAB). This understanding of the structure and function of the ecosystem will be used to inform future integrated and sustainable ocean management, and assessment/mitigation of potential future impacts. An overarching objective of the voyage is to contribute to developing models of ecosystem-level structure and function for the GAB. The Great Australian Bight Research Program is a collaboration between BP, CSIRO, the South Australian Research and Development Institute (SARDI), the University of Adelaide, and Flinders University. The Program aims to provide a whole-of -system understanding of the environmental, economic and social values of the region; providing an information source for all to use.

Plan

Summary

Scientific Highlights

Updated: 19 August 2016