3 D BENTHIC TERRAIN MAPPING AND MODELING IN

3 -D BENTHIC TERRAIN MAPPING AND MODELING IN AMERICAN SAMOA Ronald W Rinehart Oregon State University rineharr@onid. orst. edu Emily Larkin Knauss Marine Fellow Emily. larkin@gmail. com Dr. Dawn Wright Oregon State University dusk@dusk. geo. orst. edu Joshua Murphy NOAA Coastal Services Center Joshua. Murphy@noaa. gov Emily Lundblad Joint Inst. for Marine and Atmospheric Research, Coral Reef Ecosystem Div. , NOAA Fisheries, Univ. of Hawaii Manoa Emily. Lundblad@noaa. gov Lori Cary-Kothera NOAA Coastal Services Center Lori. Cary-Kothera@noaa. gov AAG - April 8 th 2005

Objectives • Improve bathymetric mapping with GIS • Generate a classified benthic terrain map • Automated user friendly system • Standardized language • Collaboration - share analyses

Charting Our Course • Benthic Terrain Modeler (BTM) Methodology • BTM Program • Case Study: Vatia Bay, American Samoa

BTM Methodology 101 Step One Step Two Step Three Step Four Classification Dictionary Benthic Terrain Slope Bathymetry + Fine BPI + Coarse BPI 4

Bathymetric Position Index – How it Works Hilltop Open Slope Valley Coarse BPI Ridge Crest Fine BPI Stream Channel

Bathymetric Position Index Run the data through the dictionary and… Classified Terrain Map Stream Channel on A Sloping Hillside

BTM Methodology 101 Step One Step Two Step Three Step Four Classification Dictionary Benthic Terrain Slope Bathymetry + Fine BPI + Coarse BPI 7

Charting Our Course • Benthic Terrain Modeler Methodology • BTM Program • Case Study: Vatia Bay, American Samoa

Wizard Interface

Help Menu

Time Saving – Re-use Results

Classification Dictionary

Classification Dictionary

Classification Dictionary - XML

System Recommendations • Arc. GIS 8. x or Arc. GIS 9. 0 SP 2 • Spatial Analyst • > 2. 0 Ghz Processor • > 1 Gigabyte of Hard Disk Space

Charting Our Course • Benthic Terrain Modeler Methodology • BTM Program • Case Study: Vatia Bay, American Samoa

Vatia Bay

Tutuila Island Vatia Bay

Bathymetry

Benthic Terrain of Vatia Bay

Profile Analysis Forereef Reef Crest Forereef Image Courtesy of NOAA Biogeography

Benthic Terrain of Vatia Bay

Distribution on the web http: //dusk. geo. orst. edu/djl/samoa/tools. html

Charting Our Course • Benthic Terrain Modeler Methodology • BTM Program • Case Study: Vatia Bay, American Samoa

Objectives – Re-visited • Improve bathymetric mapping with GIS • Generate a classified benthic terrain map • Automated user friendly system • Standardized language • Collaboration - share analyses

Soothsaying • Seafloor mapping community driven • Applicability outside of coral reefs • Ground-truthing mission

Thanks • Pat Iampetro • Andy Weiss • Jeff Jenness

3 -D BENTHIC TERRAIN MAPPING AND MODELING IN AMERICAN SAMOA Ronald W Rinehart Oregon State University rineharr@onid. orst. edu Emily Larkin Knauss Marine Fellow Emily. larkin@gmail. com Dr. Dawn Wright Oregon State University dusk@dusk. geo. orst. edu Joshua Murphy NOAA Coastal Services Center Joshua. Murphy@noaa. gov Emily Lundblad Joint Inst. for Marine and Atmospheric Research, Coral Reef Ecosystem Div. , NOAA Fisheries, Univ. of Hawaii Manoa Emily. Lundblad@noaa. gov Lori Cary-Kothera NOAA Coastal Services Center Lori. Cary-Kothera@noaa. gov AAG - April 8 th 2005