Regional and Nearshore Bathymetry of American Samoa ...
Regional and Nearshore Bathymetry of American Samoa ...
Regional and Nearshore Bathymetry of American Samoa ...
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Only 5-10% <strong>of</strong> global seafloor charted with ships- “We Ocean need ~125 Thematic more years!…” Layers **S<strong>and</strong>well et al. (2003), Eos, Transactions AGU; Image courtesy <strong>of</strong> Steve Miller, Scripps GDCGraphic courtesy <strong>of</strong> Christina Massel, Steve Miller, Scripps Institution <strong>of</strong> Oceanography
Data DescriptionMultiple datasets collected during separateresearch cruises (1984-2006)Surveys operated by numerous institutions witha variety <strong>of</strong> scientific objectivesData collected by various shipboard multibeamsonar systems with differing quality<strong>Regional</strong> data merged at a resolution <strong>of</strong> 200 m,covering an area <strong>of</strong> 28,446 km 2
Deep Multibeam by ExpeditionExpedition Year Institution(s) VesselMarathon 1984Papatua 1985-86Roundabout 1989Boomerang 1996Kiwi 1997AVON 1999Scripps Institution <strong>of</strong>OceanographyScripps Institution <strong>of</strong>OceanographyScripps Institution <strong>of</strong>OceanographyOregon State University, ScrippsInstitution <strong>of</strong> OceanographyScripps Institution <strong>of</strong>OceanographyScripps Institution <strong>of</strong>Oceanography, Woods HoleOceanographic InstitutionR/V Thomas WashingtonR/V Thomas WashingtonR/V Thomas WashingtonR/V MelvilleR/V RevelleR/V MelvilleCook 2001 University <strong>of</strong> Rhode Isl<strong>and</strong> R/V MelvilleDrift 2002ALIA 2005Scripps Institution <strong>of</strong>Oceanography, University <strong>of</strong>South FloridaWoods Hole OceanographicInstitutionR/V RevelleR/V Kilo MoanaHURL 2005-06 Hawaii Undersea Research Lab R/V Ka’imikai-O-Kanaloa
Multibeam Swaths by Expedition
Deeper Multibeam Compilation
Interpretation <strong>of</strong> Major Features
<strong>American</strong> <strong>Samoa</strong>Hazard Mitigation Plan<strong>of</strong> 2008“PagoPagoHarborcouldsustaintheworstdamageduetoamplifica8on<strong>of</strong>thetsunamibythenarrowing<strong>of</strong>thechannel.”
Shallow Bathy w/Tutuila Isl<strong>and</strong>Kyle HogrefeOSU M.S. ThesisHogrefe, Wright, & Hochberg, Marine Geodesy, 2008
Lim, Eakins, & TaylorU21E-2188 PosterTsunami Inundation DEMElliott Lim et al., NOAA NGDC
Community Engagement• Coastal Mgmt Program• AS GIS Users Group• Dept <strong>of</strong> Marine & Wildlife Resources• Dept <strong>of</strong> Public Works• AS Power Authority• National Park <strong>of</strong> AS• AS Environmental Protection Agency• AS Community College• AS Historic Preservation Office
Initial Tsunami Damage MapsPaul Anderson<strong>American</strong> <strong>Samoa</strong> Government
Continuing Work IncludesOngoing collaborations with <strong>American</strong> <strong>Samoa</strong>Government agencies…NOAA Coral Reef Ecosystem Division, NOAABiogeography, NGDC …Eastern <strong>Samoa</strong> Volcanic Province bathycompilation <strong>and</strong> seamount statistics paper toG-Cubed …HURL submersible dives proposed for 2011Continued updates atdusk.geo.orst.edu/djl/samoaseafloormapping.netearthref.org/SBN(Seamount Biogeosciences Network)
http://dusk.geo.orst.edu/djl/samoaBenthic Terrain Modeler
“Fa’afetai”Download:http://dusk.geo.orst.edu/agu09_samoa.htmlMore info:dawn@dusk.geo.orst.edu
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