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.

  • Kaitiaki Tools

    Service
    Easing the resource consent process
  • Mahinga kai - what species interests you?

    In Kaitiaki Tools the term mahinga kai generally refers to indigenous freshwater species that have traditionally been used as food, tools, or other resources.
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    Meteorologist for a day

    Within a range of meaningful contexts students will be able to make statements about implications and possible actions consistent with the results of a statistical investigation and to find and authenticate data measures such as mean, median, mode, inter-quartile range, and range.
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    Standardised Precipitation Index (SPI)

    The Standardised Precipitation Index (SPI) is a simple measure of drought (and also of very wet conditions) and is based solely on the accumulated precipitation for a given time period.
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    Further reading

    References, further reading, and links to useful websites.
  • Sediment

    When soils erode, sediments are washed into waterways.
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    Map W South

    Education Resource
    The climate of this area is greatly dependent on its exposure to weather systems from the Tasman Sea and the lie of the Southern Alps to the east.
  • Submerged plants as bio-indicators

    Submerged plants have a number of advantages that favour their use as indicators of lake ecological condition.
  • Regional climatologies

    A regional climatology is a summary of the typical weather and climate of a region, based on historical data observations made at climate stations located within the region.
  • Atlantis ecosystem model

    Atlantis is a 3D, spatially-explicit, trophodynamic ecosystem model that integrates biology, physics, chemistry and human impacts to provide a synoptic view of marine ecosystem function.
  • Climate and weather

    Information about climate and weather and links to climate-related websites.
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    Mitigation and best practice options

    Some simple steps to minimise the effects of aquaculture activities on water quality and mahinga kai.