Physical Sciences and Mathematics Commons^™

Net Shore-Drift Along The Pacific Coast Of Clallam And Jefferson Counties, Washington, James Mahala

WWU Graduate School Collection

Geomorphic and sedimentologic indicators of shore drift were used to delineate the boundaries of drift unit cells and their direction of net shore-drift along the 110 km of Pacific coastline of Clallam and Jefferson Counties, Washington. These indicators include changes in bluff morphology, sediment size gradation, beach width and slope, direction of spit progradation and stream mouth diversion, deposition and/or erosion at drift obstructions, identifiable sediment, and nearshore bar orientation. Drift determinations were based on a field oriented approach emphasizing such long-term indicators, supplemented by aerial photography, and literature relevant to the coast.

Wind from the south-southwest prevail and predominate …