Puget Sound Marine Riparian Mapping
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The primary goal of this project is to support regional salmon recovery planning and evaluation by developing regionally consistent and up to date spatial data layers for tidally influenced and marine riparian habitats at the regional scale. To achieve this goal, we will work with salmon recovery agencies to develop spatial data products that leverage and integrate with existing habitat status and trends monitoring programs and metrics, address regional data gaps, and are readily accessible through online mapping applications to support restoration planning and evaluation of progress towards recovery at a regional scale. This project will include two key objectives that are described in this project plan; (1) creating a consistent and up to date regional spatial database of tidal restriction and tidal wetland features, and (2) mapping marine riparian habitat for Puget Sound for two time steps. This page focuses on describing the efforts to map marine riparian habitat. More information about the tidal restriction mapping can be found on the Puget Sound Large River Delta Tidal Restriction and Wetland Mapping page.
Project Goals and Objectives
- Segment corrected shoreline into contiguous forested cover width classes by shoreform types and attribute corrected shoreline with width classes for 2017 and 2013 image years
- Summarize percent forested cover from 2017 WDFW HRLC for 0-100 and 0-200-ft buffers of shoreline
- Conduct regional review and ground truthing to update and evaluate data accuracy
- Summarize marine riparian extent and percent forested cover metrics by geographical areas (e.g., marine basin, Lead Entity boundaries), shoreform, and width classes for 2013 (already completed as part of previous project) and 2017 image years, evaluate trends, and compare methods to support regional habitat status and trends monitoring reporting
Background
Metrics describing the functional condition of marine riparian habitat have been developed for regional habitat status and trends monitoring programs (including National Oceanic and Atmospheric Administration's Salmon Habitat Status and Trends Monitoring , Puget Sound Partnership's Common Indicator and Vital Signs), and protocols and preliminary regional data were developed in a previous project in coordination with NOAA, PSP, and PSEMP (Hall et al. 2019; PSEMP NSWG 2019). The preliminary protocol and regional data were developed using the Washington Department of Natural Resources (WDNR) ShoreZone shoreline (2001), 2011 High Resolution Land Cover (HRLC) data (Pierce 2015), and the ESRP Beach Strategies Nearshore Geospatial Framework (NGF) 100-ft and 200-ft shoreline buffers to quantify percent forested cover by shoreform and Lead Entity boundaries. This provided a single snapshot of marine riparian condition for the region and this was generated from datasets that rely on the WDNR ShoreZone shoreline that has known alignment errors. Therefore, protocol recommendations developed through the PSEMP NSWG (2019) and described in Hall et al. 2019 included developing a corrected shoreline and segmenting the shoreline based on contiguous forested cover rather than percent forested cover within riparian zones of influence.
