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.

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    Adjustments

    Links to extensive documentation for each of the 'seven stations'

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    'Seven-station' series temperature data (archive)

    NZ ‘seven-station’ temperature series data for download

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    Changes

    This is a record of changes made to the section of NIWA's website relating to our analysis of New Zealand temperature trends.

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    Mitigation

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    Mitigation

    Some options to minimise the effects of dams on water quality and mahinga kai.

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    Mitigation

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    Impacts of wind

    How do wind energy generation activities impact water quality and mahinga kai?

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    Impacts of geothermal

    How does geothermal energy generation impact water quality and mahinga kai?

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    Mitigation

    Steps to minimise the effects of thermal energy generation on water quality and mahinga kai.

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    Impacts of thermal

    Impacts of thermal energy generation activities on water quality and mahinga kai.

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    Mitigation

    Ways to minimise the effects of hydro-dams on water quality and mahinga kai.

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    How do we gauge the state of New Zealand’s overall water quality?