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

  • UV Index at Leigh - 16 October 2023

    Yesterday's UV Index

    Plots of UV levels throughout the day at different locations.
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    Map Scott

    Education Resource
    Scott Base, Antarctica Antarctica is the coldest, windiest and driest continent.
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    What do we measure?

    Research Project
    A range of physical and chemical variables are measured in the NRWQN.
  • Lesson 9: Ngā Tohu o te Taiao – Māori environmental indicators

    Education Resource
    This lesson will explore the use of Māori environmental indicators [tohu] to anticipate local weather and climate conditions.
  • Urbanisation

    Aotearoa’s main urban areas cover approximately 2% of total available land.
  • Education and information

    Education Resource
    Explore our education and information section to find out about climate and climate change, weather, our atmosphere, estuaries and more.
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    Tuna - commercial fisheries

    Commercial eel fishery in New Zealand began in earnest in the 1960s and expanded rapidly until the early 1970s
  • Products

    Service
    Here is our complete range of products.
  • Wood processing

    Trees are grown and converted into a range of useful timber and paper products.
  • Charts

    Publication series
    Charts of coastal bathymetry, sediment, and other information are available for purchase.
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    Biological limitations

    Identifying biological factors that may be limiting fish numbers requires sampling to ensure that key invertebrate prey species are not scarce and that pest fish, especially predators, are not abundant.
  • Southland

    Southland is both the most southerly and most westerly part of New Zealand and generally is the first to be influenced by weather systems moving onto the country from the west or south.