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.

  • Water sensitive urban design: a concrete case

    Feature story
    The hard concrete surfaces that characterise New Zealand towns and cities are barely likely to register as a problem with most people. But they're never far from the minds of our urban water researchers.
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    Overview of environmental flow tools

    Methods/tools that can be used to assess ecological flow requirements in rivers with varying degrees of hydrological alteration and instream values.
  • Climate change scenarios through to 2110

  • Climate change touch screen - Fieldays

    The touch screen in action at Fieldays.revealing how our climate will change across the country.
  • NIWA seaweed scientist tackling global climate change issue

    Media release
    One of the world's leading scientific publishers has named a paper cowritten by a NIWA scientist as one of 250 groundbreaking findings that could "help change the world".
  • NZ scientists launch their part in bold project to map seafloor

    Media release
    New Zealand’s contribution to an ambitious international project aiming to generate a definitive map of the entire ocean floor in less than 12 years, is being launched in Wellington tomorrow.
  • Our Climate is Changing

    Our climate is changing - we need to act now.
  • Lake Tekapo study raises awareness of tsunamis in NZ lakes

    Media release
    A pilot project has provided the most advanced mapping of a New Zealand lake ever and highlights the hazard to lakeside towns of tsunamis caused by landslides.
  • New Zealand River Maps

    NZ River Maps is a simple, yet flexible, web-based tool that allows users to map and interrogate estimates for over 100 freshwater variables for the entire national river network.
  • Empirical Longitudinal Flow MODel (ELFMOD)

    ELFMOD is a statistical tool for estimating flows at multiple points along rivers subject to surface/ground-water exchanges, using both measured flow at selected sites and other predictor variables such as rainfall and groundwater levels.
  • Environmental Flows Strategic Allocation Platform (EFSAP)

    EFSAP is a water planning and management tool designed to assist with setting regional or large-scale water resource use limits for rivers.