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This dataset was first added to MfE Data Service on 27 Jan 2020.
This data set provides an update of New Zealand’s depth to hydrogeological basement map. Depth to hydrogeological basement can be loosely defined as the ‘base of aquifers’; or more strictly as ‘the depth to where primary porosity and permeability of geological material is low enough such that flued volumes and flow rates can be considered negligible’. For more detail on the process and methods, see Westerhoff et al. (2019). New Zealand groundwater atlas: depth to hydrogeological basement. Lower Hutt (NZ): GNS Science. 19 p. Consultancy Report 2019/140.
A national model was used to estimate depth to hydrogeological basement. Hydrogeological basement refers to geological material with primary porosity and permeability that is low enough such that fluid volumes and flow rates can be considered negligible.
Creative Commons Attribution 4.0 International
You may use this work for commercial purposes.
You must attribute the creator in your own works.
| Information | |
|---|---|
| Category | Fresh Water |
| Tags | groundwater, aquifer, hydrogeological basement |
| Regions | New Zealand |
| Metadata | Dublin Core, ISO 19115/19139 |
| Technical Details | |
|---|---|
| Layer ID | 104446 |
| Data type | Grid |
| Resolution | 250.000m |
| Services | Raster Query API, Catalog Service (CS-W) |
| History | |
|---|---|
| Added | 27 Jan 2020 |
| Revisions | 2 - Browse all revisions |
| Current revision | Imported on Jan. 27, 2020 from GeoTIFF in NZGD2000 / New Zealand Transverse Mercator 2000. |
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