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

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    Tuna - life cycle and leptocephalii

    Freshwater eels have an unusual life cycle which sees them travelling between the ocean, estuaries and freshwaters.
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    Hawkes Bay

  • Support

    We have a range of exciting career pathways with our professional Support Service.
  • Planning for coastal adaptation

    Service
    Coastal risk exposure for New Zealand, adaptation guidance for local government and relevant summaries of previous court cases and Building Act 2004 determinations.
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    Horticultural activities

    Land is tilled, sowed, and harvested for horticultural crops to grow.
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    Impacts

    Diverting water changes a waterways natural flow
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    How cold is the Antarctic?

    Write a report, with guided questions, to answer the question: “How cold is the Antarctic?”
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    NZ from Space - About

    AQUA and TERRA are polar orbiting satellites that both pass over New Zealand twice per day.
  • Inspection at Mt. Dobson Climate site in Canterbury on 03.05.2024

    Climate Summaries

    Publication series
    View annual, seasonal and monthly summaries of temperature, rainfall and sunshine data from across New Zealand.
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    How deep is the snow at your place?

    Measurements of snowfall at low elevations around New Zealand are few and far between, and yet the data would be really helpful in understanding how snowfall occurs and quantifying snow-related risks.
  • SolarView help

    This calculator estimates the solar energy that can be collected by a solar capture device (solar panel) at a given address, panel direction and roof slope.
  • Canterbury

    All aspects of the climate of Canterbury are dominated by the influence of the Southern Alps on the prevailing westerly airflows.