Name: MHWS Inland Extent (Morphum Model)

Display Field: Shape_Length

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Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>Ī</SPAN></SPAN><SPAN><SPAN>nanga eggs are generally laid above the neap tide level during a spring tide cycle (Mitchell &amp; Eldon, 1991). Based on this, MHWS-10 (the upper limit of 90% of all tides) is the optimal tidal level for this analysis. This method has been successfully used to map potential spawning extent in the Canterbury (Greer et at. 2015) and Greater Wellington (Taylor &amp; Kelly. 2001) regions. A zero-meter contour of MHWS-10 is extracted and used as the baseline to create the spawning extent polygon from a 1m DEM. All geo-processing was undertaken using ArcGIS Pro version 2.9.0 with the Spatial Analyst extension.</SPAN></SPAN></P><P /><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>This geodatabase includes a feature class including all areas between the MSHW-10 and 0 m contours, as well as a second feature class which has been clipped to remove areas considered unsuitable to support spawning (i.e. not adjacent to watercourse).</SPAN></SPAN></P><P /><P><SPAN><SPAN>To be read in conjunction with the memorandum: Gisborne </SPAN></SPAN><SPAN><SPAN>Īnanga Spawning </SPAN></SPAN><SPAN><SPAN>Extent Modelling.</SPAN></SPAN><SPAN>Prepared by Morphum Environmental, dated September 2022.</SPAN></P></DIV></DIV></DIV>

Copyright Text: Data delivered by Morphum Environmental September 2022

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Spatial Reference: 2193  (2193)

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Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• Shape ( type: esriFieldTypeGeometry, alias: SHAPE )
• Shape_Length ( type: esriFieldTypeDouble, alias: Shape_Length )
• Shape_Area ( type: esriFieldTypeDouble, alias: Shape_Area )

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