Parent Layer: Statutory

Name: High Water Mark (Final)

Display Field: OBJECTID

Type: Feature Layer

Geometry Type: esriGeometryPolyline

Description: The High-water Mark (HWM) indicates the level reached by the sea at high tide, and was drawn as a base reference for the delineation of coastal management lines in the Eden District, Western Cape Province, South Africa. It is primarily based on a line indicating a 1:10yr wave run-up generated with a wave run-up simulation model, but corrections were applied manually after visual inspection using approximate indicators (vegetation line at the top of the beach, wet sands, exposed rock etc. as per aerial photography of 2013). The wave run-up model used MIKE21-FMSW software to calculate onshore wave heights and the EurOtop package to model wave run-up.

Service Item Id: a2eb2c938a5c4959a69e9e9469a6575d

Copyright Text: Created by Royal HaskoningDHV Project Information owned by the Western Cape Province, Department of Environmental Affairs and Development Planning: Ms Ieptieshaam Bekko Sub-Directorate: Coastal Management Directorate: Biodiversity and Coastal Management Chief Directorate: Environmental Sustainability 4th Floor, Leeusig Building, 1 Dorp Street, Cape Town Tel: 021 483 3370 E-mail: Ieptieshaam.Bekko@westerncape.gov.za

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Extent:

XMin: -62565.88329999987
YMin: -3770564.7290000003
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YMax: -3763192.5654999996
Spatial Reference: PROJCS["Hartebeesthoek94_Lo23",GEOGCS["GCS_Hartebeesthoek_1994",DATUM["D_Hartebeesthoek_1994",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",23.0],PARAMETER["Scale_Factor",1.0],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]

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