South East Australia Integrated Marine Observing System (SEA-IMOS)


The South East Australia Integrated Marine Observing System (SEA-IMOS) ten year science and observational plan has been designed to provide data streams across five major research themes that underpin key physical and biological processes important to the regions unique marine ecosystem. These data streams will help determine: 


  • The spatial and temporal variation in physical oceanographic conditions off South East Australia, including shelf and slope currents, cycles of up-welling/down-welling, and the influence of major boundary currents and climate variability.
  • How variations in circulation influence connectivity and nutrient enrichment in south east Australia from the Bonney coast in western Victoria, Bass Strait, Tasmanian waters and Eastern Victoria.
  • How broader oceanographic phenomena such as the Bonney upwelling shared with the SAIMOS node and the extension of the EAC through the jurisdiction of the NSW-IMOS  influence  nutrient enrichment, and connectivity in south east Australia ecosystem dynamics, food web structure, and key biological patterns and processes from microbes and plankton to apex predators.
  • The key ecological features for the region (seafloor geomorphology) and the role this plays in establishing zones of influence for boundary layer currents, habitat distribution and ecosystem structure.

The SEA-IMOS node provides a new opportunity for IMOS to strategically invest and engage stakeholders to fill important knowledge gaps in the IMOS network through an expanded focus in South Eastern Australia. 


  • IMOS AUV captures an unusually large group of Port Jackson sharks in the Beagle Commonwealth Marine Reserve

    Hundreds of the distinctive, dark-striped sharks were massed on the sandy seafloor among low rocky reefs covered with brightly coloured sponges.[more]

  • Third 'IMOS in MOcean' video – What do changes in the Southern Ocean mean for the Antarctic ice sheet?

    The 3rd video in the 'IMOS in MOcean' series examines evidence that a warming Southern Ocean is contributing to Antarctic ice sheet melting.[more]

  • Second 'IMOS in MOcean' video – How does the ocean control atmospheric CO2?

    The 2nd video in the 'IMOS in MOcean' series examines carbon and heat transfer between ocean and atmosphere.[more]

  • What happens after Godzilla leaves the room?

    The current monster El Niño weather pattern being experienced in Australia is being referred to as the ‘Godzilla’ El Niño. Climatologists are looking at ocean data to try to predict what happens once this phenomenon passes.[more]

  • CO2 uptake in the Southern Ocean is revived

    A decade ago scientists feared that the ability of the Southern Ocean to absorb additional atmospheric carbon dioxide would soon be stalled. But the analysis of more recent observations using IMOS and other data show that this...[more]

  • Investigator finds a 'Freddy' (a frontal eddy) in East Australian Current

    Frontal eddies ('freddies') are small, short-lived, rapidly-rotating cyclonic (clockwise) eddies that form inshore of the main flow of the East Australian Current (EAC).[more]