The Olympic Coast National Marine Sanctuary (OCNMS) continues to invest significant resources into seafloor mapping activities along Washington's outer coast. Results from these annual mapping efforts offer a snapshot of current ground conditions, help to guide research and management activities, and provide a baseline for assessing the impacts of various threats to important habitat. This report provides a description of the mapping efforts and the results of the image classification procedure for each of the areas surveyed in 2004 and 2005.

Fugro Pelagos, Inc. (FPI) was contracted by GRW Engineers to conduct a site survey for the USACE (and ultimately Olympic Coast National Marine Sanctuary-OCNMS) along a portion of coastline from Koitlah Point to Cape Alava within the OCNMS. OCNMS' objectives for the survey effort were three-fold: 1) to obtain existing conditions of the nearshore bathymetry and intertidal zone along a select portion of shoreline that is not ascertainable through ship-based acoustic data acquisition techniques due to hazardous surf conditions, 2) to assess the performance of ALB technology along both exposed and...

Through a partnership between the National Oceanic and Atmospheric Administration's (NOAA) Office of Coast Survey (OCS), NOAA's National Marine Sanctuary Program (NMSP), and NOAA's Office of Marine and Aviation Operations (OMAO), high resolution bathymetry (HRB) was collected on various opportunistic occasions during the months of October from 2001-2004 in the Olympic Coast National Marine Sanctuary (OCNMS).

The report provides a description of the mapping and groundtruthing efforts, and technique and results of the automated segmentation procedure for each area surveyed in 2002 and 2003.