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
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