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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    Tuna - habitat

    Tuna are found in all sorts of habitats (places), including coastal estuaries, lakes, wetlands, rivers, mountain streams and even alpine tarns.
  • Estimating design wind speeds in complex terrain

    Research Project
    The current method for calculating wind speed-up is inadequate, and can grossly under-predict correct design wind speeds in NZ's complex terrain.
  • Resources for teachers

    NIWA's educational resources and scientific data are tools for young people to learn about science.
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    NZ Drought indicator products and information

    Drought is a common feature of New Zealand's climate. On average, every year or two somewhere in New Zealand experiences a drought.
  • Post-Doctoral Fellowships

    Post-Doctoral Fellowship positions at NIWA.
  • Sea level observations (near real-time)

    Service
    This system combines daily sea-level data from NIWA, regional councils, port companies, Antarctica NZ, Bureau of Meteorology and territorial authorities.
  • algal bloom

    Algal monitoring service

    Service
    Blooms of hazardous cyanobacteria (blue-green algae) in rivers, lakes and reservoirs can cause problems for both animal and human health.
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    What is the greenhouse effect?

    Education Resource
    The greenhouse effect is a warming of the earth's surface and lower atmosphere caused by substances which let the sun's energy through to the ground but impede the passage of energy from the earth back into space.
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    New Zealand's Marine Realm

    News article
    NIWA has transformed 1.5 million square kilometres of data into the most accurate and detailed map yet of the land underneath the sea around New Zealand.
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    Seafood sector

    NIWA's seafood sector work comprises our fish, fisheries and aquaculture research and consultancy.
  • Loss of riparian vegetation

    Plants and trees along the water margins and banks are called riparian vegetation.