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

Software tools

NIWA develops and supplies custom software for environmental analysis and modelling.

NIWA develops and supplies custom software for environmental analysis and modelling.

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    The Cylc Suite Engine

    Cylc: a general purpose workflow engine that orchestrates cycling workflows very efficiently.
    Environmental Information

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    Latent and sensible heat fluxes from lake water surfaces

    The latent heat flux and evaporation from lakes are predicted to increase in a warming climate. This model script (written in Matlab) estimates latent and sensible heat fluxes from lake water surfaces.

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    Statistical calculators

    Online statistics tools, including a detection calculator, a kappa calculator and a Lin's concordance calculator are now accessible as Python 3.x code stored in Github.

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    Neon applications software

    The Neon Applications software is a suite of software and documentation which allows clients to set up their own Neon system on existing server hardware, or new server hardware located at the client’s premises.
    Coasts
    Oceans

  • Link to source page

    CHES - smarter use of New Zealand’s river waters

    CHES (Cumulative Hydrological Effects Simulator) software tool predicts how water flows in a catchment will change with multiple water uses (e.g. direct abstractions or storage reservoirs) and what the consequences will be to in-stream ecosystems and reliability of water-take.