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

  • “Very rare find” of ghost shark hatchling

    Media release
    NIWA scientists have made the rare discovery of a days-old ghost shark during a recent survey off the east coast of the South Island.
  • Emperor penguin foraging behaviour revealed

    Media release
    An unavoidable delay in a research ship’s voyage to Antarctica resulted in some surprising and important findings about the behaviour of emperor penguins.
  • Instream barriers and altered water flow

    Instream barriers and diversions alter the natural flow of rivers, streams, and lakes.
  • Dry stock farming activities

    Dry stock farms can cover large areas of hill-country grassland that may be steep and prone to erosion.
  • (no image provided)

    Graphing with Microsoft Excel

    How do I create a graph?
    Using Microsoft® Excel is easy because the Chart Wizard does all the work for you!
    Simply enter the data for your data table.
    Highlight the cells you want to graph.
    Click on the Chart Wizard icon on the Tool Bar.
    Select the chart type you want to use and click Next.
    Click Next to confirm the range of cells.
    Give your graph a title, label x- and y-axis and click Next.
    Click on the gridlines tab to remove or add gridlines.
    Click Finish and graph is complete!
    Help, my graph is too small!
    When the chart wizard creates your graph it will probably be too smal
  • Charts

    Publication series
    Charts of coastal bathymetry, sediment, and other information are available for purchase.
  • (no image provided)

    Tuna - spawning grounds

    All species of freshwater tuna spawn at sea, although the spawning grounds of only four species are known with certainty worldwide.
  • (no image provided)

    Summer Series Week 4: Know your shells

    News article
    If you're collecting sea shells at the beach this summer and wondering what they are, NIWA is here to help.
  • (no image provided)

    Canterbury

  • UV Index at Leigh - 17 October 2023

    Today's UV Index

    Today's UV Index
  • (no image provided)

    Kōaro

    Kōaro are excellent climbers and like clear, swiftly flowing, forested streams.