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The Nearshore Geospatial Framework provides a connection between data based on the ShoreZone shoreline (including coastal data from the ESRP Beach Strategies project) and nearby inland and aquatic spatial data. The purpose of this framework is to enable Chinook salmon restoration and protection. The Nearshore Geospatial Framework consists of polygons with one edge coincident with the ShoreZone shoreline, such that GIS users can easily link coastal data with upland and aquatic data. These polygons are constructed from Beach Strategies shoretypes and net shore-drift cells. In the Nearshore Geospatial Framework, "net shore-drift cells” include each contiguous stretch of left-to-right or right-to-left net shore-drift, as well as areas of no appreciable drift.These polygons are derived from the smallest Hydrologic Unit Code (HUC) basin management units mapped by the United States Geologic Survey (USGS). Polygons were edited to coincide with the WDNR ShoreZone shoreline (2001) and other Nearshore Geospatial Framework data. Topological rules were used to ensure that polygons did not overlap each other,and that the coastal border of all polygons coincided with the ShoreZone shoreline line feature. All work was completed in the NAD_1983_HARN_StatePlane_Washington_South_FIPS_4602_Feet projected coordinate system.HUC basins were assigned the name and directional characteristics of the net shore-drift cell with which they interacted, in addition to other associated data from the Beach Strategies dataset. They are designed to facilitate management of upstream restoration and visualization of riparian and marine interactions as they relate to Chinook salmon recovery.This project was made possible with funding and support from the Puget Sound Partnership. |