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

Atmospheric analysis

NIWA has been using advanced scientific instruments to measure atmospheric trace gases and isotopes for over 50 years.

  • Soil moisture anomaly map (mm) at 9am on 3 April 2024

    Hotspot Watch 4 April 2024

    Hotspot
    A weekly update describing soil moisture patterns across the country to show where dry to extremely dry conditions are occurring or imminent.
  • Honiara

    Pacific partnerships

    NIWA works collaboratively with our Pacific partners to support the sustainable management and resilience of the Pacific’s natural resources, environments and communities.
  • tuna

    Taonga species

    Te Kūwaha, NIWA’s Māori Environmental Research team, partners with whānau, hapū and iwi to co-develop methods for the protection, restoration and economic development of taonga species.
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    Freshwater restoration

    NIWA measurement, research and tools support strategies being used to reverse the degradation of freshwaters and restore ecosystems throughout New Zealand.
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    Freshwater quality

    NIWA provides measurement, knowledge and tools to the managers of New Zealand's stream, river, lake and groundwater quality.
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    Freshwater invertebrates

    NIWA research into freshwater invertebrates supports a greater understand of the role of these varied aquatic species in habitat and ecosystem health.
  • Freshwater fish

    NIWA research and tools support the protection, restoration and management of New Zealand’s freshwater fish species and the habitats that sustain them.
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    Ecotoxicology

    NIWA offers a range of standard toxicity tests for both freshwater and marine environments and is at the cutting edge of toxicity-related research.
  • Ecological monitoring

    Monitoring the health of freshwater lakes and streams.
  • Mangrove on Athenree Estuary

    Estuaries

    NIWA research and tools support the protection, restoration and management of coastal estuarine environments where seawater mixes with freshwater.
  • Weather forecasting

    NIWA's forecasting services are underpinned by experienced meteorologists and in-house proprietary modelling.
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    Climate modelling and projections

    Climate modelling and projections will support Aotearoa’s transition to a low-emissions, climate-resilient economy.