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AAG - April 8th 2005

3-D BENTHIC TERRAIN MAPPING AND MODELING IN AMERICAN SAMOA. Ronald W Rinehart Oregon State University rineharr@onid.orst.edu Dr. Dawn Wright Oregon State University dusk@dusk.geo.orst.edu Emily Lundblad

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AAG - April 8th 2005

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  1. 3-D BENTHIC TERRAIN MAPPING AND MODELING IN AMERICAN SAMOA Ronald W Rinehart Oregon State University rineharr@onid.orst.edu Dr. Dawn Wright Oregon State University dusk@dusk.geo.orst.edu Emily Lundblad Joint Inst. for Marine and Atmospheric Research, Coral Reef Ecosystem Div., NOAA Fisheries, Univ. of Hawaii Manoa Emily.Lundblad@noaa.gov Emily Larkin Knauss Marine Fellow Emily.larkin@gmail.com Joshua Murphy NOAA Coastal Services Center Joshua.Murphy@noaa.gov Lori Cary-Kothera NOAA Coastal Services Center Lori.Cary-Kothera@noaa.gov AAG - April 8th 2005

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

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

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

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

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

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

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

  9. Wizard Interface

  10. Help Menu

  11. Time Saving – Re-use Results

  12. Classification Dictionary

  13. Classification Dictionary

  14. Classification Dictionary - XML

  15. System Recommendations • ArcGIS 8.x or ArcGIS 9.0 SP2 • Spatial Analyst • > 2.0 Ghz Processor • > 1Gigabyte of Hard Disk Space

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

  17. Vatia Bay

  18. Tutuila Island and Vatia Bay

  19. Bathymetry

  20. Benthic Terrain of Vatia Bay

  21. Profile Analysis Reef Crest Forereef Reef Crest Forereef Image Courtesy of NOAA Biogeography

  22. Benthic Terrain of Vatia Bay

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

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

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

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

  27. Thanks • Pat Iampetro • Andy Weiss • Jeff Jenness

  28. 3-D BENTHIC TERRAIN MAPPING AND MODELING IN AMERICAN SAMOA Emily Larkin Knauss Marine Fellow Emily.larkin@gmail.com Joshua Murphy NOAA Coastal Services Center Joshua.Murphy@noaa.gov Lori Cary-Kothera NOAA Coastal Services Center Lori.Cary-Kothera@noaa.gov Ronald W Rinehart Oregon State University rineharr@onid.orst.edu Dr. Dawn Wright Oregon State University dusk@dusk.geo.orst.edu Emily Lundblad Joint Inst. for Marine and Atmospheric Research, Coral Reef Ecosystem Div., NOAA Fisheries, Univ. of Hawaii Manoa Emily. Lundblad@noaa.gov AAG - April 8th 2005

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