Todd, S., Odum, O., Koschak, M. and McBride, A., 2009. Quality Assurance Methodology for Mapping Marine Shoreline Geomorphology. Point No Point Treaty Council, Poulsbo, WA. pp. 39.

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The Salmon and Steelhead Habitat Inventory and Assessment Program (SSHIAP) developed and applied a methodology (Fitzpatrick 2007) for mapping marine shoreline geomorphology in a GIS according to a model developed by McBride (McBride et al. 2005). Following completion of an initial draft dataset for all of Puget Sound and outer Washington coastal shorelines, SSHIAP collaborated with McBride and others to complete a quality assurance (QA) mapping phase of the initial draft, incorporating air photo verification and supplemental datasets not used in the initial draft. In addition to incorporating additional input data to support the QA phase, we revised some of the mapping rules applied in the initial draft and in the way geomorphic units are hierarchically organized (see Table 1 in the Appendix for a comparison of pre- and post-QA geomorphic unit types). This document focuses on the revisions to mapping methodology and how data inputs were applied in the mapping process.
The main intent of the QA mapping phase was to produce a “current day” shoreline geomorphology dataset for the Puget Sound region that would complement a “historic” geomorphology/typology dataset being developed by the Puget Sound Nearshore Ecosystem Restoration Program (PSNERP) Nearshore Science Team (NST). It should be noted that in order to map current day geomorphology it was necessary to understand the historic characteristics of the shoreline (i.e., prior to significant human modification of the shoreline), as this historic information provides a basis for the current day geomorphology and it informs our understanding of the potential for nearshore restoration. This was the primary reason for including historical wetland datasets as supplementary information for this QA mapping phase. At a later time SSHIAP intends to employ these same QA methods to map geomorphology along the outer Washington Coast, which was not included in this QA mapping phase.

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