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

  • (no image provided)

    Mitigation and best practice options

    Some simple steps to minimise the effects of wastewater on water quality and mahinga kai.
  • Common hydrological terms

    Education Resource
    Descriptions of the common terms that explain the processes that occur in hydrology.
  • West Coast

    West Coast is New Zealand’s wettest region, and this may be attributed to its exposure to the predominant westerly airflow over the country, combined with the orographic effect of the Southern Alps.
  • Raglan B, Cam-era monitoring site

    Raglan B

    Raglan B Cam-era station
  • (no image provided)

    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.
  • (no image provided)

    Other Climate data products

    Short-term to long-term data estimation
  • High Performance Computing Facility

    Facility
    The High Performance Computing Facility (HPCF) is supercharging New Zealand science.
  • (no image provided)

    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.
  • (no image provided)

    Mean daily global radiation (Mj/sq m)

    These datasets are available in a range of formats.
  • Post-Doctoral Fellowships

    Post-Doctoral Fellowship positions at NIWA.