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

  • Scientists explore deepest parts of the Kermadec Trench

    Media release
    Scientists exploring the Kermadec Trench believe they have retrieved the deepest ever sediment sample from the bottom of the ocean using a wire-deployed corer.
  • 2012-2013 Drought

    The 2012-2013 drought affected the entire North Island plus the west coast of the South Island.
  • Lesson 2: Wind

    Education Resource
    Sometimes wind can feel like a bit of a mystery because we can feel it, but not see it.
  • Guidelines for sampling freshwater fisheries

    We have prepared a breakdown of the different guidelines that are available for sampling freshwater fisheries. The overview provides links to key documents that explain what should be considered when designing fish monitoring studies and how to implement the various sampling techniques.
  • Splendid Sponges

    An interactive guide to the sponges of New Zealand.
  • Services

    How can we help you?
  • Dissolved oxygen

    Dissolved oxygen (DO) is a relative measure of the amount of oxygen (O2) dissolved in water.
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    Seafood sector

    NIWA's seafood sector work comprises our fish, fisheries and aquaculture research and consultancy.
  • Generating synthetic wind data

    Research Project
    NIWA has recently created synthetic, multi-year, 10-minute wind datasets at 15 wind farm sites across New Zealand. These will be used by the Electricity Commission to model the impact of wind farms on the national grid.
  • Dry stock

    Dry stock farming consists predominantly of pasture grazing beef cattle, sheep, and deer for meat, wool, and velvet production.
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    Coralline Algae

    This identification guide covers the common crustose coralline algae found in central New Zealand.
  • Otago

    The climate of Otago is perhaps the most diverse of any region in New Zealand.