Parent Layer: HS54 - Tamaki Strait

Name: HS54 Hillshade (1 m - 3 x VE)

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Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Hillshades represent an illuminated modelled surface derived from an elevation model. Depending on the illumination direction, azimuth, and degree of vertical exaggeration, hillshades can be used to highlight subtle geomorphology and seafloor features.</SPAN></P><P><SPAN>These data present a modelled multi-directional hillshade derived from the bathymetric elevation model (1 m resolution) of the HS5</SPAN><SPAN>4</SPAN><SPAN> - </SPAN><SPAN>Tamaki Strait</SPAN><SPAN> survey area. Survey HS5</SPAN><SPAN>4</SPAN><SPAN> was undertaken by </SPAN><SPAN>iXSurvey (now iXBlue) </SPAN><SPAN>on behalf of Land Information New Zealand (LINZ) for hydrographic charting purposes. Compared to traditional hillshades which are illuminated from a single source point only, a multi-directional hillshade is illuminated from 6 separate directions simultaneously, resulting in a more 'natural' expression of terrain.</SPAN></P><P><SPAN>This hillshade has been vertically exaggerated by a factor of 3, resulting in greater expression of more subtle geomorphology.</SPAN></P></DIV></DIV></DIV>

Service Item Id: 985e46845fb045bd8a814e8171bd33b2

Copyright Text: Survey HS54 undertaken by iXSurvey (now iXBlue ltd.) Raw data provided by Land Information New Zealand (LINZ) Bathymetry processed by National Institute of Water and Atmospheric Research (NIWA) Data processed on behalf of Te Kaunihera o Tāmaki Makaurau / Auckland Council

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