Denman
Marine
Voyage

Many years in the making, the Denman Marine Voyage (DMV) is the first marine scientific endeavour on board Australian icebreaker RSV Nuyina

Mute/Unmute and Play/Pause Button
Cover Image

It brings together about 60 scientists in a major scientific collaboration between our Australian Centre of Excellence for Antarctic Science (ACEAS), the Australian Antarctic Program Partnership (AAPP), Securing Antarctica’s Environmental Future (SAEF) and the Australian Antarctic Division (AAD).

47 are from ACEAS and AAPP.

DMV Science Coordinators: (L-R) Dr Leonie Suter (AAD), Prof. Delphine Lannuzel (UTAS/ACEAS), with Paul Clarke (Master, RSV Nuyina), Prof. Jan Strugnell (JCU/SAEF), Dr Laura Herraiz Borreguero (CSIRO/AAPP) Photo: Simon Payne / AAD

The DMV follows the multi-year land-based Denman Terrestrial Campaign (DTC). While the DTC has focused on the ice sheet, land side of the Denman Glacier, the DMV bridges the two together by focusing on the ocean side - and the critical transition between the two.

Little has been previously known about the Denman Glacier in Australian Antarctic Territory, East Antarctica. What is known is, it is changing. It has been modelled as the deepest trough on earth and is so large, if the ice it holds were to melt entirely, it would raise sea levels globally by 1.5 metres.

The DMV aims to better understand the drivers of change to the glacier system - those interactions between the atmosphere, the ocean and the ice melt.

To do this, teams of researchers will:

  • Deploy floats, moorings and a sea glider to measure physical and chemical properties of the ocean and its role in glacial ice melt

  • Collect rock samples, sediment and deeper cores of mud from the seafloor to reconstruct its long-term history

  • Deploy cameras to reveal diversity of life on the seafloor and the potential for climate-driven change

  • Map the bathymetry (shape and depth) of the ocean floor to help determine warm water pathways from the continental shelf to the glacier

  • Collect seawater samples to detect trace metals and better understand the influence of nutrient-rich meltwater from the ice shelf

  • Tag seals with deep-water ocean monitoring devices

  • Collect seawater samples to determine how phytoplankton growth is influenced by light and nutrients

  • Deploy weather balloons and use radar and atmospheric monitors for future climate modelling

  • Take organism DNA samples from the seawater

  • Use the ship’s wet well to capture zooplankton and determine diversity, help predict future environmental changes

  • Use a continuous plankton recorder to collect baseline information on zooplankton abundance and distribution for future ecosystem conservation.

The voyage is part of the Australian Antarctic Program (AAP).

RSV Nuyina departed Hobart on Saturday March 1, 2025. It will return in two months.

FOLLOW THE JOURNEY

Sediment coring: examining an ancient ‘layer cake’

April 16, 2025

Sediment coring: examining an ancient ‘layer cake’ By Dr Taryn Noble Deep-sea sediment cores have been collected during the Denman Marine Voyage, a first for the RSV Nuyina. These sediments contain a rich record of Antarctic climate change going back […]

Read More

DMV for kids

April 10, 2025

DMV for kids The Denman Glacier Marine Research Expedition: Exploring Ice, Ocean, and Life in Antarctica By Professor Delphine Lannuzel, ACEAS Science Coordinator Just over the halfway mark of the Denman Marine Voyage, ACEAS presents an update for kids! What […]

Read More

Voyage of discovery in modern times

April 4, 2025

Voyage of discovery in modern times By Craig Johnson It’s -22 °C chill factor outside, the water is -1.75 °C, and for the last half-hour the ship has been manoeuvring to avoid ice bergs. I’m cosy in shirt sleeves, sitting […]

Read More

Revealed in a rock dredge

April 1, 2025

Revealed in a rock dredge By Jo Whittaker Anticipation was high as the first dredge of the Denman Marine Voyage was deployed to a water depth of 2700 metres on the steep eastern slope of the Eastern Bruce Rise. Waiting for a […]

Read More

Denman Glacier, how deep is your continental shelf?

March 28, 2025

Denman Glacier, how deep is your continental shelf? By Katharina Hochmuth The Denman Marine Voyage is not only the first dedicated marine science voyage on our new home the RSV Nuyina, but we are also sailing to places where few […]

Read More

Into the ice

March 26, 2025

Into the ice By Claire Yung During the first few weeks of the Denman Marine Voyage, we have seen sea ice in a variety of shapes and forms. Many of us stood at the windows of the observation lounge to […]

Read More

Mysteries of colourful icebergs

March 24, 2025

Mysteries of colourful icebergs By Kaihe Yamazaki Antarctica’s icebergs are famous for their brilliant whites and blues from glacier ice (compacted snow turns blue as air bubbles are expelled), but a few stand out in startling colours like green, brown, […]

Read More

World Day for Glaciers – a poem

March 21, 2025

World Day for Glaciers – a poem A little poem written by Christina Schmidt to celebrate today’s World Day for Glaciers and World Poetry Day – Friday 21 March, 2025: – I have now seen the Denman Glacier with my […]

Read More

Hey Sir Mawson, it’s Lady Denman’s glacier, right?

March 18, 2025

Hey Sir Mawson, it’s Lady Denman’s glacier, right? By Katharina Hochmuth How and why, we name geographical landmarks is and has always been an important part of scientific expeditions. During the Australasian Antarctic Expedition (1911-14), Sir Douglas Mawson and his […]

Read More

Denman Marine Voyage: long-term vision now a reality

March 7, 2025

Denman Marine Voyage: long-term vision now a reality Accessing the vast and remote Denman Glacier system in Australian territory in East Antarctica by ocean is a monumental task, and after many years of planning and collaboration it’s now a reality. […]

Read More

Sediment coring: examining an ancient ‘layer cake’

April 16, 2025

Sediment coring: examining an ancient ‘layer cake’ By Dr Taryn Noble Deep-sea sediment cores have […]

Read More

DMV for kids

April 10, 2025

DMV for kids The Denman Glacier Marine Research Expedition: Exploring Ice, Ocean, and Life in […]

Read More

Voyage of discovery in modern times

April 4, 2025

Voyage of discovery in modern times By Craig Johnson It’s -22 °C chill factor outside, […]

Read More

Revealed in a rock dredge

April 1, 2025

Revealed in a rock dredge By Jo Whittaker Anticipation was high as the first dredge […]

Read More

Denman Glacier, how deep is your continental shelf?

March 28, 2025

Denman Glacier, how deep is your continental shelf? By Katharina Hochmuth The Denman Marine Voyage […]

Read More

Into the ice

March 26, 2025

Into the ice By Claire Yung During the first few weeks of the Denman Marine […]

Read More

Mysteries of colourful icebergs

March 24, 2025

Mysteries of colourful icebergs By Kaihe Yamazaki Antarctica’s icebergs are famous for their brilliant whites […]

Read More

World Day for Glaciers – a poem

March 21, 2025

World Day for Glaciers – a poem A little poem written by Christina Schmidt to […]

Read More

Hey Sir Mawson, it’s Lady Denman’s glacier, right?

March 18, 2025

Hey Sir Mawson, it’s Lady Denman’s glacier, right? By Katharina Hochmuth How and why, we […]

Read More

Denman Marine Voyage: long-term vision now a reality

March 7, 2025

Denman Marine Voyage: long-term vision now a reality Accessing the vast and remote Denman Glacier […]

Read More