Toitū Te Whenua Land Information New Zealand, 155 The Terrace
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Metadata Standard Name
ANZLIC Metadata Profile: An Australian/New Zealand Profile of AS/NZS ISO 19115:2005, Geographic information - Metadata
Metadata Standard Version
Reference System Info
Reference System Identifier
NZ Scanned Sounding Sheet Index
This index enables you to identify the freely available georeferenced TIFF images of sounding sheets held by LINZ for the New Zealand coastal area. Some of these sounding sheets date back to the 1930s. The polygons comprising the index show the extent of each original hard copy sheet - not just the soundings shown on the sheet. The attributes attached to each polygon will enable you to view, amongst other attributes, the date and scale of the bathymetric data shown on the sounding sheet.
Please refer to the LINZ Bathymetric Index Data Dictionary for further information about the attributes of this dataset. The georeferenced TIFF images are not downloadable from the LINZ Data Service.
Requests for sounding sheets should be sent to email@example.com with “Hydro Bathy Data” in the subject line. Requests must, as a minimum, specify the id, chart_no and serial_no as shown in the attributes attached to each polygon representing the sounding sheets of interest.
LINZ also holds images of New Zealand sounding sheets provided by third parties, which are subject to different licencing terms and conditions. View our "NZ Scanned Sounding Sheet Index – Third Party" dataset to request these sounding sheets.
The purpose of this dataset is to provide an index to the georeferenced TIFF images of sounding sheets held by LINZ for the New Zealand coastal area. The index enables customers to identify sounding sheets that they may be interested in requesting from LINZ for their own use.
Released under Creative Commons Attribution 4.0 International with:
1. Bathymetric Datasets are provided by LINZ without warranty as their accuracy and veracity
2. Users are expected to apply due diligence when using datasets which are provided on an errors and ommissions excepted basis.
If you publish, distribute or otherwise disseminate this work to the public without adapting it, the following attribution to Toitū Te Whenua Land Information New Zealand should be used:
'CC BY 4.0 Toitū Te Whenua Land Information New Zealand'
If you adapt this work in any way or include it in a collection, and publish, distribute or otherwise disseminate that adaptation or collection to the public, the following attribution to Toitū Te Whenua Land Information New Zealand should be used:
'Contains data sourced from the LINZ Data Service and licensed for reuse under CC BY 4.0.'
If "attribution stacking" problems exist then the requirement to diplay the avoce attribution statements is waived and in lieu the attribution statment is to be made in any terms or conditions associated with the work/ product/ application/ etc.
The Royal New Zealand Navy and, more recently, LINZ have been responsible for undertaking or commissioning hydrographic surveys to faciliate the prodcution of nautical charts to enable New Zealand to meet its obligations under the International Convention for the Safety of Life at Sea.
Traditionally the bathymetric data collected during hydrogarphic surveys was rendered only as sounding sheets in hard copy form, often as A1 (or larger) sheets. More recently the bathymetric datasets have often been rendered as both sounding sheets and as digital data files, with the provision of sounding sheets diminishing over time. The sounding sheets have been scanned and georeferenced to make them available as TIFF images.
The index has been derived from the extents of the georeferenced images and infomration held in LINZ's hydrographic information database.
LINZ's bathymetric data is usually based on minimum seabed depth (shoal-biased) values. This means if two soundings are close together we choose the lesser (shallower) one as safety is our primary concern.
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Released under Creative Commons Attribution 4.0 International