On 1 July 2025, NIWA merged with GNS Science to become Earth Sciences New Zealand.

Oceans

NIWA aims to provide the knowledge needed for the sound environmental management of our marine resources.

  • Marine heatwaves

    Research Project
    Temperatures around Aotearoa New Zealand are increasing, and not just on land. Amid a changing climate, significant marine heatwaves have impacted Aotearoa over the past decade and are expected to become more frequent and intense.
  • Argo float in action

    Argo floats

    Research Project
    Since the early 2000s, NIWA has been part of the international Argo programme, which is deploying floats to measure temperature and salinity throughout the world's oceans.
  • Seabed 2030

    Research Project
    NIWA is leading a New Zealand partnership to map the South and West Pacific Ocean's seabed as part of a worldwide initiative to map the entire globe’s seafloor.
  • Forecasting marine heatwaves: A cost-effective early warning system

    Research Project
    Earth Sciences New Zealand are creating an AI-driven national forecasting system to effectively manage marine heatwaves.
  • Hurunui River, North Canterbury.

    Land-to-sea spatial management

    Research Project
    Assessing sediment effects on seafloor primary production via satellite .
  • Offshore wind farm in the UK

    De-risking New Zealand’s offshore wind energy

    Research Project
    A programme to accelerate efficient and accurate assessments of the impacts of proposed offshore developments on New Zealand’s unique marine fauna and habitats.
  • wave

    Catching Marine Carbon

    Research Project
    This Endeavour Fund programme will examine the potential and risks of three marine carbon dioxide removal techniques by studying their natural equivalents in New Zealand coastal and open-ocean waters.
  • Internal wave at poor knights

    The I-MIX Project

    Research Project
    How Internal wave MIXing is altered by climate change and what are the consequences for ecosystems?
  • Hauraki Integrated Land-Water Modelling

    Research Project
    The Inner Hauraki Gulf/Tīkapa Moana ecosystem is facing proliferations of algae, de-oxygenation, reduced pH (acidification), reduced water clarity, and muddier sediments arising from historical and future land-derived contaminant inputs.
  • Tsunami generated by underwater volcanoes

    Research Project
    Marsden-funded research investigating how erupting volcanoes can cause deadly and damaging tsunamis.
  • Sea2Cloud – how marine aerosols influence the atmosphere and climate

    Research Project
    Clouds over the ocean, and how they trap or emit radiation from the sun, are partly influenced by the biology, biogeochemistry and physics of the surface ocean below.
  • Sedimentation effects

    Research Project
    This programme looks at the impacts of sediment plumes created by disturbance to the seafloor and the discharge of processed waters.