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

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    Soil Moisture Deficit (SMD)

    The 3-panel Soil Moisture Deficit (SMD) map shows the historical soil moisture deficit at the date shown (left), the soil moisture deficit at the same time last year (middle) and the current soil moisture deficit (right).
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    Water Level Instruments

    There are different types of instrument available for measuring water level.
  • New Zealand Palaeotsunami Database

    Software Tool/Resource
    The New Zealand Palaeotsunami Database (Database) brings together all known information about tsunamis that occurred prior to written records.
  • Lake Castalia on the upper reaches of the Wilkin River North Branch near Wanaka. Image is looking southwest back down the valley.

    Environmental monitoring

    NIWA collects a vast range of environmental information about New Zealand’s environment from the sky to the seafloor.
  • Pulp and paper

    Wood chips and plant material make pulp that is used to produce paper products.
  • Submerged plants as bio-indicators

    Submerged plants have a number of advantages that favour their use as indicators of lake ecological condition.
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    Electric Fishing Machine - NIWA EFM300

  • Wave action

    Feature story
    New Zealand’s coast is sculpted by ocean waves. Some wave conditions bring joy to surfers and beachgoers, but, at other times, waves can cause major hazards at sea or along the shore.
  • 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.
  • Kaitiaki Tools

    Service
    Easing the resource consent process
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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.