20240919 16320600 1.0 FALSE SpringHighTideLevels 1698988.369800 1831333.385700 5868225.099500 6011776.250000 1 002 Projected GCS_NZGD_2000 Linear Unit: Meter (1.000000) NZGD_2000_New_Zealand_Transverse_Mercator <ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/10.8'><WKT>PROJCS["NZGD_2000_New_Zealand_Transverse_Mercator",GEOGCS["GCS_NZGD_2000",DATUM["D_NZGD_2000",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",1600000.0],PARAMETER["False_Northing",10000000.0],PARAMETER["Central_Meridian",173.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",2193]]</WKT><XOrigin>-4020900</XOrigin><YOrigin>1900</YOrigin><XYScale>10000</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>0.001</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>2193</WKID><LatestWKID>2193</LatestWKID></ProjectedCoordinateSystem> 20240919 17291700 20240919 17291700 150000000 5000 Item Description Spring High Tide Levels <DIV STYLE="text-align:Left;"><DIV><DIV>The Mean High Water Spring Tide Sea Levels layer provides the elevation of the high tide level equalled or exceeded by only the highest 10% of all high tides. These high tide levels include the astronomically driven tide only (due to rotational and gravitational effects) and do not include waves or storm surges (which are the rise in sea level caused by wind action and low barometric pressure related to storm events). Storm-tide levels are provided in a separate storm-tide levels dataset.The Mean High Water Spring Tide Sea Levels have been provided for points around Auckland’s coast as part of a project to map the coastal inundation that will occur into the future with sea level rise on top of mean high water spring tides.The mean high water spring tide sea levels have been updated based on the mean sea level averaged over the period 2001–2019. This accounts for sea level rise that has occurred up until the effective base date of 2010, but does not include sea level rise that has occurred since that period, or sea level rise that is expected to occur into the future. This is set out in the report Coastal inundation from sea-level rise in the Auckland Region (NIWA, 2023). For guidance related to future sea level rise and vertical land movement, refer to the Ministry for Environment’s <A href="https://environment.govt.nz/publications/interim-guidance-on-the-use-of-new-sea-level-rise-projections/">Interim guidance on the use of new sea-level rise projections | Ministry for the Environment</A>and <A href="https://www.searise.nz/maps-2">NZ Sea Rise</A>.Mean high water spring tides are used to define the Coastal Marine Area boundary within Auckland’s Unitary Plan.Note: The studies informing this mapping of coastal inundation generally used Auckland Vertical Datum 1946. Auckland Council is now transitioning to using New Zealand Vertical Datum 2016 so the live data on geomaps has also been converted to NZVD2016.</DIV></DIV></DIV> Credit Contact Person: Matt Rivers Contact Position: Senior Coastal Engineer, Resilient Land & Coasts, Infrastructure and Environmental Services, Auckland Council Contact Person: Natasha Carpenter Contact Position: Coastal Management Practice Lead, Resilient Land & Coasts, Infrastructure and Environmental Services, Auckland Council <DIV STYLE="text-align:Left;"><DIV><DIV>Constraints– General:The dataset is not meant to stand alone, and users should refer to report Coastal inundation from sea-level rise in the Auckland Region (NIWA, 2023)Constraints– Legal:There are no legal constraints in relation to this dataset.Constraints– Security:Creative Commons – All Records</DIV></DIV></DIV> The Mean High Water Spring Tide Sea Levels layer provides the elevation of the high tide level equalled or exceeded by only the highest 10% of all high tides. These high tide levels include the astronomically driven tide only (due to rotational and gravitational effects) and do not include waves or storm surges (which are the rise in sea level caused by wind action and low barometric pressure related to storm events). Storm-tide levels are provided in a separate storm-tide levels dataset. MHWS Mean High Water Spring Version 6.2 (Build 9200) ; Esri ArcGIS 10.8.1.14362 1 174.098757 175.610133 -36.011067 -37.327370 SpringHighTideLevels Feature Class 291 OBJECTID OBJECTID OID 4 0 0 Internal feature number. Esri Sequential unique whole numbers that are automatically generated. SHAPE SHAPE Geometry 0 0 0 Feature geometry. Esri Coordinates defining the features. CoastalHazard CoastalHazard String 30 0 0 MHWS10_MSL_NZVD2016 MHWS10_MSL_NZVD2016 Double 8 0 0 MHWS10_MSL MHWS10_MSL Double 8 0 0 MHWS10NoMSL MHWS10NoMSL Double 8 0 0 MSLAveragingPeriod MSLAveragingPeriod String 20 0 0 StormSurge StormSurge String 5 0 0 WaveSetUp WaveSetUp String 5 0 0 WaveRunUp WaveRunUp String 5 0 0 SeaLevelRise SeaLevelRise String 20 0 0 SeaLevelRisenum SeaLevelRisenum Double 8 0 0 DataSource DataSource String 255 0 0 Creator Creator String 50 0 0 DocumentLink DocumentLink String 255 0 0 Status Status String 20 0 0 VerticalDatum VerticalDatum String 15 0 0 created_user created_user String 50 0 0 created_date created_date Date 8 0 0 last_edited_user last_edited_user String 50 0 0 last_edited_date last_edited_date Date 8 0 0 ValidationState ValidationState Integer 4 0 0 GlobalID GlobalID String 2048 0 0 File Geodatabase Feature Class dataset EPSG 7.9.4(9.0.0) 291 Simple FALSE 291 TRUE FALSE 20240919 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