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

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    Mitigation and best practice options

    Some simple steps to minimise the effects of mining activities on water quality and mahinga kai.
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    How deep is the snow at your place?

    Measurements of snowfall at low elevations around New Zealand are few and far between, and yet the data would be really helpful in understanding how snowfall occurs and quantifying snow-related risks.
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    Science and Technology Fairs

    NIWA is a major sponsor of the Auckland, Manukau City, North Harbour, Waikato, Wellington, Canterbury and Bay of Plenty – Science & Technology Fairs.
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    Weather plots: temperature and relative humidity

    Objective: to observe the relationship between temperature and relative humidity.
  • Canterbury

    All aspects of the climate of Canterbury are dominated by the influence of the Southern Alps on the prevailing westerly airflows.
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    Cloud Imagery

    On this page
    NZ Region Cloud Analysis Australasian Region Infrared Hemispheric Infrared NZ High-res Visible Contact
    All transmissions from GMS-5 are no longer received at NIWA’s satellite reception station in Wellington. We are working on an alternative data feed and will be able to bring back these images later this year. Once we start receiving data again, it will then be calibrated, re-mapped onto standard map projections, and archived.
  • Determining the age of fish

    Research Project
    NIWA expends considerable effort on determining the age of commercial fish species. But why age a fish? And how do we do it?
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    Smelt

    Smelt have a distinctly forked tail and a strong cucumber smell.
  • Water dams

    Damming water for urban use, hydro-electric power generation, irrigation, and other industrial and commercial uses.
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    Smart Rain Intensity Gauge - NIWA SRIG

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    Population modelling software

    Casal2 is an advanced software package developed by NIWA for modelling the population dynamics of marine species.
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    Investigating ocean acidification

    Feature story
    The world’s oceans are acidifying as a result of the carbon dioxide (CO2) generated by humanity.