New Zealand Hydrogeological Systems

Map

This hydrogeological system GIS dataset provide a nationally-consistent basis for hydrogeological mapping in New Zealand. This resource contains a download the NZ hydrogeological systems map and associated report.

Overview

Hydrogeological systems are defined here as geographical areas with broadly-consistent hydrogeological properties, and similar resource pressures and management issues. They include coastal basin, inland basin, coastal volcanic, inland volcanic, inland river valley, coastal independent, basement infill and basement hardrock.

  • Terms of Use

    This dataset is provided under Creative Commons C BY 4.0.0(external link)

    Where the dataset is used in a figure, GNS Science requests attribution in the following manner: © GNS Science 2019.

    Where reference to the dataset is to be included in a reference list please cite Moreau et al., 2019.

  • Download the dataset

    NZ Hydrogeological Systems polygon 20250131 version (ZIP, 76 MB)

    The NZ Hydrogeological Unit Map dataset NZ Hydrogeological Systems map and associated report (ZIP, 89 MB)  

    Disclaimer and license apply

  • About the GIS dataset

    The ‘NZ_hydrogeologicalsystem_polygon.shp’ provides seven hydrogeological attributes as follows:

    • unique name (HS_name)
    • unique identification (HS_id)
    • system type (HS_type)
    • coastal information (HS_coast)
    • aquifer overview (HS_overview)
    • geology and age group (HS_geo_gr)
    • geology and age descriptor (HS_geo_age).


    Nine system types are identified. The ‘NZ_hydrogeologicalsystem_boundary.shp’ attribute table identifies, the source and methods of boundary delineation.

Cite as: Moreau, M.; White, P.A.; Mourot F.; Rawlinson Z.; Tschritter C.; Cameron S.C.; Westerhoff R. 2019. (Revised 2023). Classification of New Zealand, GNS Science report; 2018/35. 28p.

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