Transcript PPT file
3-D BENTHIC TERRAIN MAPPING AND MODELING IN AMERICAN SAMOA Ronald W Rinehart Oregon State University [email protected] Emily Larkin Knauss Marine Fellow [email protected] Dr. Dawn Wright Oregon State University [email protected] Joshua Murphy NOAA Coastal Services Center [email protected] Emily Lundblad Joint Inst. for Marine and Atmospheric Research, Coral Reef Ecosystem Div., NOAA Fisheries, Univ. of Hawaii Manoa [email protected] Lori Cary-Kothera NOAA Coastal Services Center [email protected] AAG - April 8th 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 • ArcGIS 8.x or ArcGIS 9.0 SP2 • Spatial Analyst • > 2.0 Ghz Processor • > 1Gigabyte of Hard Disk Space Charting Our Course • Benthic Terrain Modeler Methodology • BTM Program • Case Study: Vatia Bay, American Samoa Vatia Bay Tutuila Island and Vatia Bay Bathymetry Benthic Terrain of Vatia Bay Profile Analysis Forereef Reef Crest 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 [email protected] Emily Larkin Knauss Marine Fellow [email protected] Dr. Dawn Wright Oregon State University [email protected] Joshua Murphy NOAA Coastal Services Center [email protected] Emily Lundblad Joint Inst. for Marine and Atmospheric Research, Coral Reef Ecosystem Div., NOAA Fisheries, Univ. of Hawaii Manoa Emily. [email protected] Lori Cary-Kothera NOAA Coastal Services Center [email protected] AAG - April 8th 2005