d0f8e48f-c01f-4a9e-a19f-d20678c8e14a dataset Kevin Mackay NIWA Marine Data Manager Greta Point Wellington Wellington k.mackay@niwa.co.nz marinegis NIWA marinegis@niwa.co.nz 2023-03-27T10:41:16 ISO 19139 Geographic Information - Metadata - Implementation Specification 2007 47480 3994 EPSG 6.18(10.0.0) New Zealand Regional Bathymetry contour dataset 2008-07-01 2008-07-01 2008 Ed. Kevin Mackay NIWA Marine Data Manager Greta Point Wellington Wellington k.mackay@niwa.co.nz Bathymetric contour data set 50m - 12,000m around the New Zealand region. Projection: Mercator 41 / EPSG:3994 A low resolution (250m equidistance) contour data set of regional bathymetry. Projection: Mercator 41 / EPSG:3994 NIWA Downloadable Data bathymetry regional New Zealand NZ Merc41 Mercator 41 none elevation oceans Version 6.2 (Build 9200) ; Esri ArcGIS 10.6.1.9270 true -180.00 180.00 -57.50 -24.00 0 12000 SDE Feature Class Kay Tredea NIWA Publications Private Bag 14901 Wellington 6021 k.tredrea@niwa.co.nz File Geodatabase Feature Class ArcGIS 9.3 MapInfo Interchange Format MapInfo 7.0 140.431 https://gis.niwa.co.nz/server/rest/services/Reference/NZ_Bathymetry_250m/ImageServer WWW:LINK-1.0-http--link NZ 250m Regional Bathymetry Image Service on ArcGIS NZ 250m Bathymetry Image Service on ArcGIS Published Chart: CANZ Group (2008), ‘New Zealand Region Bathymetry’, 1:4,000,000 scale at 46°S on Mercator projection, NIWA Chart, Miscellaneous Series No. 85, National Institute of Water and Atmospheric Research, Wellington, New Zealand Geographic Coverage: In the edgematching of this sheet with GEBCO sheet G.08, the bathymetry was taken from sheet G.08 for the following areas: 24°-31°S,157°-158.5°E; 47°-54°S,157°-165°E; 54°-57.5°S,157°-163.5°E The bathymetry was compiled by NIWA at a scale of 1:1 million using a series of 18 separate Ocean Plotting Sheets on which the soundings were plotted. Each author (as listed above) worked on the interpretation and contouring of 3-4 sheets each and gravity data were used to assist in the interpretation. The resulting contours (at intervals of 250m) were then digitized and used in the production of the 1:4 million scale chart. The bathymetry was compiled from data held at: National Institute of Water and Atmosphere (NIWA) Hydrographic Office of the Royal New Zealand Navy US National Geophysical Data Centre South Pacific Applied Geoscience Commission (Fiji); from published scientific papers; and from recent swath bathymetric surveys funded by Institut Francais de Recherche pour l’Exploitation de la Mer (IFREMER), France, NIWA and Seabed Mapping New Zealand Ltd. The shallow water contours (50m, 100m, 150m and 200m) were compiled from a database made up of the digitized contours from the NIWA coastal (1:200,000) chart series.