NitrateWatch project (SSIF Project 6) is gathering nitrate data from around New Zealand. Our goal is to provide this information visually to our stakeholders via a map interface • NitrateWatch is aimed at generating new knowledge about nitrates in rural drinking water across New Zealand. • We aim to highlight nitrate hot spots and benchmark nitrate levels for rural drinking water by collecting data from drinking water samples submitted by rural residents. • A further goal is to improve stakeholder engagement through working more closely with iwi, Regional Councils, district Councils, Government agencies and local communities in readiness for future cooperation. • Data generated from this project serves as a talking point to showcase GNS’ leadership in the groundwater/drinking water space. • Our data provides future opportunities for GNS groundwater staff to build new projects leveraged off NitrateWatch

Raster files and contours of apparent resistivity collected at nominal electrode array spacings of 500 and 1000 m. DC resistivity mapping data collected by GNS Science and its predecessor organisations from the mid-1960s until 1997, primarily for geothermal exploration. Apparent resistivity varies by several orders of magnitude in the Taupō Volcanic Zone, where there is a significant resistivity contrast between rocks saturated with hot geothermal fluids and cold, siliceous volcanic rocks. Over 32,000 DC resistivity mapping observations have been made in New Zealand. The greatest number of measurements are in the Taupō Volcanic Zone, with some smaller surveys in the Waihi area and Ngawha in Northland. All data collected since 1970 have been with the Schlumberger electrode configurations with nominal electrode spacings of AB/2 = 500m and AB/2 = 1000m. Prior to 1970, DC resistivity data were mostly collected using a Wenner array with electrode spacing 1800 ft (549 m) and 3600 ft (1097 m). Data collected in Lake Taupō used two 150 m long dipoles towed behind small boats, each boat separated by 500 m forming an equatorial dipole-dipole array. For more information on the data collection see download resource (below), Bibby 1988, Bennie et al. 1995, Caldwell and Bibby 1992. Rasters and contours can be accessed via the E Tūhura - Explore Zealandia (TEZ) portal (https://data.gns.cri.nz/tez/). DOI for this data set is https://doi.org/10.21420/6GE4-A546 Bennie, S. L., Stagpoole, V. M. and Bibby, H. M., 1985. Waterborne resistivity measurements in the Rotorua Lakes area of New Zealand. Geophysics Division Report 206, DSIR, Wellington. Bibby HM, 1988. Electrical resistivity mapping in the Central Volcanic Region of New Zealand. New Zealand Journal of Geology and Geophysics, Vol. 31: 259-274. https://doi.org/10.1080/00288306.1988.10417776 Caldwell, T. G. and Bibby, H. M. 1992. Geothermal implications of resistivity mapping on Lake Taupō. Proc. 14th N. Z. Geothermal Workshop 1992, pp. 207-212, University of Auckland.

This collection of datasets has been superseded by a new edition (2nd edition, 2018) available here: https://data.gns.cri.nz/metadata/srv/eng/catalog.search#/metadata/43B63222-FCC9-4C1D-84EF-FC5FB2F4790F. This 1st edition has been kept as a historical archive and is available on request. The collection of datasets contains the 1:250 000 geological data for New Zealand. These datasets are a product of the QMAP Geological Map of New Zealand Project and were produced by GNS Science. At the time of publication they represented the most current mapping for New Zealand at a scale of 1:250 000. The datasets are stored in an ESRI vector geodatabase and exported to ArcGIS Server. The datasets comprises multiple geological features with each having attributes that describes them.

This dataset represents the geological units present at or near the surface and comprises polygons with attributes describing the rock type, age and stratigraphic nomenclature. The dataset is part of the Geology of the Pukekohe area collection produced by GNS Science. The mapping frame within which the features have been observed is defined as surface geology (i.e. the bedrock and superficial deposits that are exposed at the topographic surface or would be visible if the overlying soil was removed). The data structure complies with the GeoSciML 4.1 standard for GeologicUnitView and uses the appropriate CGI Controlled Vocabularies. This dataset forms part of Bland KJ, Townsend DB, Hill MP, Jones KE (compilers). 2023. Geology of the Pukekohe area [digital data]. Lower Hutt (NZ): GNS Science. (GNS Science geological map; 12b). For more information on data, distribution options and formats visit https://doi.org/10.21420/ZB5N-HB42. Additional products associated with this dataset are available from https://doi.org/10.21420/Y3CC-PB81.

This dataset has been superseded by a new edition (3rd edition, 2020) available here: https://data.gns.cri.nz/metadata/srv/eng/catalog.search#/metadata/5F6780CB-4135-4204-A2C8-50DD74B0466F. This 2nd edition has been kept as a historical archive and is available on request.. This dataset is the annotation associated with the faults data for New Zealand. The dataset is a product of the QMAP Geological Map of New Zealand Project and was produced by GNS Science. At the time of publication it represented the most current mapping of faults for New Zealand in a single dataset at a scale of 1:250 000. The dataset is stored in an ESRI vector geodatabase and exported to ArcGIS Server. The dataset comprises annotation which stores the fault name.

This dataset represents the horizons present at or near the surface and comprises arcs with attributes describing the horizon name, lithology, contact relationships, geologic history and age. The dataset is part of the Geology of the Napier-Hastings urban area collection produced by GNS Science. The mapping frame within which the features have been observed is defined as surface geology (i.e. the bedrock and superficial deposits that are exposed at the topographic surface or would be visible if the overlying soil was removed). The data structure complies with the GeoSciML 4.1 standard for both ContactView and GeologicUnitView and uses the appropriate CGI Controlled Vocabularies. This dataset forms part of Lee JM, Begg JG, Bland KJ. 2020. Geological map of the Napier-Hastings urban area [digital data]. Lower Hutt (NZ): GNS Science. (GNS Science geological map; 7a). For more information on data, distribution options and formats visit https://doi.org/10.21420/QCQT-G461. Additional products associated with this dataset are available from https://doi.org/10.21420/4CR3-9M83.

This dataset represents the metamorphic units present at or near the surface and comprises polygons with attributes describing the mineral metamorphism properties such as grade, mineralogy and age. The dataset is part of the Geological Map of New Zealand (Mainland) collection produced by GNS Science. The mapping frame within which the features have been observed is defined as surface geology (i.e. the bedrock and superficial deposits that are exposed at the topographic surface or would be visible if the overlying soil was removed). The data structure complies with the GeoSciML 4.1 standard, where relevant, and uses the appropriate CGI Controlled Vocabularies. This dataset forms part of Heron, D.W. (custodian) 2023: Geological Map of New Zealand 1:250 000 (4th ed.) [digital data]. Lower Hutt (NZ): GNS Science. (GNS Science geological map; 1). For more information on data, distribution options and formats visit https://doi.org/10.21420/5XTJ-5718. To obtain the data visit https://doi.org/10.21420/8BEH-6P24.

This dataset has been superseded by a new edition (2nd edition, 2020) available here: https://data.gns.cri.nz/metadata/srv/eng/catalog.search#/metadata/79DFDE2D-14C3-4E1A-9BAA-EE4AD2B545AB. This dataset is the supplemental geological boundaries data for the Geological Map of the Tongariro National Park area. The dataset is a product of the Geological Map of New Zealand project and was produced by GNS Science. It contains bounding contacts to geological units that are not included within the Geological_Boundaries dataset such those concealed beneath other mapped geological units and the limit of geological mapping (e.g where the geology is hidden beneath permanant ice). The dataset is stored in an ESRI vector geodatabase and exported to ArcGIS Server. The dataset comprises arcs with each arc having attributes describing the type of contact, its accuracy and exposure. The data structure complies with the GeoSciML 4.1 standard for ContactView and uses the relevant CGI Controlled Vocabularies.

This dataset represents the topographic units compiled from several LINZ Topo50 datasets and developed to complement the geological data. The dataset is part of the Geology of the Tongariro National Park area collection produced by GNS Science. It is stored in an ESRI vector geodatabase and exported to a shapefile. The dataset is associated with Townsend DB, Leonard GS, Pure LR, Conway CE, Eaves SR, Wilson CJN (compilers) 2020. Geology of the Tongariro National Park area 1:60 000. GNS Science geological map 4. Digital vector data (2nd ed.). Lower Hutt, New Zealand. GNS Science.

This dataset has been superseded by a new edition (2nd edition, 2018) available here: https://data.gns.cri.nz/metadata/srv/eng/catalog.search#/metadata/43B63222-FCC9-4C1D-84EF-FC5FB2F4790F. This 1st edition has been kept as a historical archive and is available on request. This dataset is the veins data for New Zealand. The dataset is a product of the QMAP Geological Map of New Zealand Project and was produced by GNS Science. At the time of publication it represented the most current mapping of veins for New Zealand in a single dataset at a scale of 1:250 000. The dataset is stored in an ESRI vector geodatabase and exported to ArcGIS Server. The dataset comprises arcs with each arc having attributes describing the mineralogy and its age.