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

  • Splendid Sponges (Intertidal)

    An interactive guide to the intertidal sponges of New Zealand.
  • Mangroves: to clear or not to clear?

    Media release
    NIWA scientists have written a guide for managing mangroves, prompted by a desire for people to learn more about mangrove ecosystems, and what happens when they are removed.
  • Edgecumbe flood damage

  • Porirua at Mana Marina

    Porirua at Mana Marina sea levels
  • Queens Wharf - Wellington

    Queens Wharf - Wellington sea levels
  • (no image provided)

    When the sea gives back – a story of luck and decency

    Media release
    NIWA puts a lot of things in the ocean—instruments tied to moorings, floats that dive up and down measuring what’s going on in the water, and video cameras that monitor fish.
  • NIWA Technical Background report for MfE “Clean Water” Swimmability Proposals for Rivers

    News article
    NIWA provides technical background information on "Clean Water" swimmability proposals.
  • Paradise for eels? Getting to know the secrets of NZ's new icon

    Feature story
    As New Zealand's "Mr Eel", Niwa's Dr Don Jellyman has heard every tall tale. And some of them may be true.
  • 2017_Canterbury_plains_groundwater

    2017 - Canterbury plains groundwater

    Voyage
    RV Tangaroa Voyage TAN1703
    5 April – 1 May 2017
  • Toolkit development

    A number of individuals, organisations and hapū have contributed to the development of Ngā Waihotanga Iho.
  • Getting started

    Traditionally, tangata whenua have collected information about estuaries to monitor resources, such as kaimoana, and to make decisions about conservation measures, such as rähui. Increasingly, tangata whenua are using scientific tools to help monitor their natural resources and Ngä Waihotanga Iho provides a science perspective for talking about environmental issues and concerns related to estuaries.
  • Scientists go door-to-door in Edgecumbe collecting flood information

    Media release
    Scientists will be knocking on doors in Edgecumbe next week seeking to survey the damage done to buildings from recent flooding caused when a stopbank on the Rangitaiki River breached.