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oceans

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From 1 - 10 / 1874
  • This layer contains depth information in gridded format captured by multibeam sonar in 2021. The data was collected for Toitū Te Whenua Land Information New Zealand (LINZ) and for which the survey took place from 18 November to 14 December 2021. Data management and distribution is by LINZ. Data comprises a gridded depth model as tif or ascii tiles in UTM projection. Vertical accuracy is +/- 0.5m (95%) Horizontal accuracy is +/- 1m (95%) Vertical datum is Approximate Lowest Astronomical Tide. The source data used to create the depth model may be of a higher resolution/density than the model. This data can be supplied on request.

  • This set is a compilation of raster imagery at various scales. All data contained is available for download from the LINZ Data Service. THIS DATA DOES NOT REPLACE NAUTICAL CHARTS AND MUST NOT BE USED FOR NAVIGATION. Note: This set contains charts at a variety of scales. Use of LDS web map tile services for this set is not recommended as the scaled charts overlap. The hydrographic raster data made available through the LINZ Data Service is based on the Paper Navigational Charts published and maintained by the New Zealand Hydrographic Authority at Land Information New Zealand (LINZ). The online New Zealand Chart Catalogue provides more detailed and the most up to date information about New Zealand charts: [New Zealand Chart Catalogue] (http://www.linz.govt.nz/sea/charts/paper-charts/nz202-chart-catalogue). Information on symbols and abbreviations used on nautical charts: [Symbols and Abbreviations] (http://www.linz.govt.nz/sea/charts/paper-charts/symbols-terms-abbreviations-used-charts). Hydrographic standards and specifications for nautical charts and publications: [Standards and Specifications] (http://www.linz.govt.nz/sea/charts/hydrographic-standards-technical-specifications).

  • In collaboration between the Korea Polar Research Institute and NIWA, an oceanographic mooring was deployed close to the bottom depth near the Drygalski Ice Tongue (lat:-75.275700, lon:164.067300) on 9 March 2018 as a part of the ANA08C research cruise, and it was recovered on 3 January 2019 To monitor physical properties(Temperature, Salinity, Current) of deep water near the Drygalski Ice Tongue. To monitor physical properties (Temperature, Salinity, Current) of deep water near the Drygalski Ice Tongue. GET DATA: https://kpdc.kopri.re.kr/search/9826749c-376a-4751-8812-702cec76c4c0

  • This layer contains depth information in gridded format captured by multibeam sonar in 2005 as part of P3001 - Bounty and Antipodes Islands Hydrographic Survey. The data was collected for Toitū Te Whenua Land Information New Zealand (LINZ) and for which the survey took place from 25 March to 8 April 2005. Data management and distribution is by LINZ. Data comprises a gridded depth model as tif or ascii tiles in UTM projection. Vertical accuracy is +/- 1.14m (95%) Horizontal accuracy is +/- 3.04m (95%) Vertical datum is Approximate Lowest Astronomical Tide. The source data used to create the depth model may be of a higher resolution/density than the model. This data can be supplied on request and available resolutions be discovered through the [NZ Bathymetric Surface model Index](https://data.linz.govt.nz/layer/95574-nz-bathymetric-surface-model-index/).

  • This layer contains depth information in gridded format captured by multibeam sonar in 2012/13 as part of HS39 - Bay of Plenty. The data was collected for Toitū Te Whenua Land Information New Zealand (LINZ) and for which the survey took place from 24 October 2012 to 21 March 2013. Data management and distribution is by LINZ. Data comprises a gridded depth model as tif or ascii tiles in UTM projection. Vertical accuracy is +/- 0.2m (95%) Horizontal accuracy is +/- 0.7m (95%) Vertical datum is Approximate Lowest Astronomical Tide. The source data used to create the depth model may be of a higher resolution/density than the model. This data can be supplied on request and available resolutions be discovered through the [NZ Bathymetric Surface model Index](https://data.linz.govt.nz/layer/95574-nz-bathymetric-surface-model-index/).

  • This layer contains depth information in gridded format captured by multibeam sonar in 2008 as part of HS17 - Auckland Marine Disposal Site. The data was collected for Toitū Te Whenua Land Information New Zealand (LINZ) and for which the survey took place from 11 August to 22 August 2008. Data management and distribution is by LINZ. Data comprises a gridded depth model as tif or ascii tiles in UTM projection. Vertical accuracy is +/- 0.9m (95%) Horizontal accuracy is +/- 5.5m (95%) Vertical datum is Approximate Lowest Astronomical Tide. The source data used to create the depth model may be of a higher resolution/density than the model. This data can be supplied on request and available resolutions be discovered through the [NZ Bathymetric Surface model Index](https://data.linz.govt.nz/layer/95574-nz-bathymetric-surface-model-index/).

  • This layer contains depth information in gridded format captured by multibeam sonar in 2008 as part of Auckland Explosives Dumping Ground Hydrographic Survey. The data was collected for Toitū Te Whenua Land Information New Zealand (LINZ) and for which the survey took place from 2 February to 10 February 2008. Data management and distribution is by LINZ. Data comprises a gridded depth model as tif or ascii tiles in UTM projection. Vertical accuracy is +/- 0.7m (95%) Horizontal accuracy is +/- 4.3m (95%) Vertical datum is Approximate Lowest Astronomical Tide. The source data used to create the depth model may be of a higher resolution/density than the model. This data can be supplied on request and available resolutions be discovered through the [NZ Bathymetric Surface model Index](https://data.linz.govt.nz/layer/95574-nz-bathymetric-surface-model-index/).

  • This layer contains depth information in gridded format captured by multibeam sonar in 2021 as part of HS75 - Approaches to Napier. The data was collected for Toitū Te Whenua Land Information New Zealand (LINZ) and for which the survey took place from 10 October to 14 November 2021. Data management and distribution is by LINZ. Data comprises a gridded depth model as tif or ascii tiles in UTM projection. Vertical accuracy is +/- 0.3m (95%) Horizontal accuracy is +/- 1m (95%) Vertical datum is Approximate Lowest Astronomical Tide. The source data used to create the depth model may be of a higher resolution/density than the model. This data can be supplied on request.

  • A semi-autonomous sea ice monitoring station (SIMS) was deployed to record ice temperature profiles and snow depths throughout the winter to late spring portion of the sea ice cover's growth season. These data were used to quantify the factors that govern the rate at which the sea ice grows. These factors include the local air temperature, vertical temperature gradient in the sea ice, the thickness of the overlying snow cover and the properties of the water column at the ice / water interface. The ice temperature profiles were recorded by a custom-built temperature probe designed by the University of Otago. The Otago thermistor probe consisted of twenty thermistors contained within a ~ 2.5 m long, 10 mm diameter stainless steel tube. The spacing of the thermistors in the probe was variable. This dataset provides information on the growth of the landfast sea ice and how much of this growth was due to heat loss to the atmosphere vs heat loss to the ocean. Locations: lat:-75.275700, lon:164.067300 (2022/23) Sea ice salinity and fabric cores were collected to understand sea ice growth rates, and indicate the different types of landfast sea ice (e.g. columnar versus incorporated platelet) and to determine their relative vertical positions with the sea ice cover. Sea ice, sub ice platelet layer, snow and freeboard measurements were used to validate ice thicknesses determined by analysing the sea ice temperature profiles collected by the SIMS. Snow depths were measured with a Campbell Scientific ultrasonic sensor (SR50). VIEW DATA: https://seaice.otago.ac.nz/ice-temp-graph/contour/

  • This layer contains depth information in gridded format captured by multibeam sonar in 2020 as part of HS71 - Coromandel. The data was collected for Toitū Te Whenua Land Information New Zealand (LINZ) and for which the survey took place from 19 October to 9 November 2020. Data management and distribution is by LINZ. Data comprises a gridded depth model as tif or ascii tiles in UTM projection. Vertical accuracy is +/- 0.511m (95%) Horizontal accuracy is +/- 2m (95%) Vertical datum is Approximate Lowest Astronomical Tide. The source data used to create the depth model may be of a higher resolution/density than the model. This data can be supplied on request and available resolutions be discovered through the [NZ Bathymetric Surface model Index](https://data.linz.govt.nz/layer/95574-nz-bathymetric-surface-model-index/).