Graduate Thesis Or Dissertation
 

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  • We map the regional physiography and surficial lithology (Surficial Geologic Habitat or SGH) over the continental margin of Oregon. This thesis develops, describes, and implements an iterative interpretive method to map seafloor habitat types from disparate geological and geophysical datasets including: bathymetric images, sidescan sonar images, seismic reflection profiles, sediment samples, geologic maps of structure, and observations from submersibles. An indirect technique for the assessment of map accuracy or habitat type misidentification error is also explored and used to derive supplemental maps of varying interpretative confidence, or "quality". The geological and geophysical datasets used to produce the SGH maps of the Oregon margin are by their nature patchy, and form an irregular mosaic of variable data density and quality. Uniform sampling of continental margins does not yet exist, thus these maps are an attempt to glean as much information as possible from the framework of existing data. In any given area the quantity and quality of data available varied considerably, and required a flexible method of interpretation based on this availability. The integrated interpretative GIS techniques are developed to facilitate mapping geologic habitat types over this region of discontinuous and patchy seafloor data. The SGH map and thematic map accuracy assessment support improved habitat-based inventory and assessment methods. They also serve as habitat reference materials for marine resources management and planning activities at local to national scales. SGH and data quality maps are incorporated as thematic layers within a broader habitat geodatabase for west coast groundfish and are directly applied for modeling Essential Fish Habitat (EFH) for these species.
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  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2012-06-28T15:05:43Z (GMT) No. of bitstreams: 5THESIS.zip: 23985030 bytes, checksum: ffd0b3d8795d21e89b36fa591ada5658 (MD5)Plate 3.jpg: 10240810 bytes, checksum: d87bc4aca5c787b077bc111b89c39c5b (MD5)Plate 2.jpg: 9146060 bytes, checksum: e5c4483493d36861dca017ecc3e2d6ed (MD5)Plate 1.jpg: 8301790 bytes, checksum: 4aa4011a748e9cb25dc294df0d863b24 (MD5)RomsosChristopherG2004.pdf: 9252591 bytes, checksum: 8b23fd6637a2d5785855a2353c1345cc (MD5)
  • For master (tiff) digital images of maps contained in this document contact scholarsarchive@oregonstate.edu
  • description.provenance : Submitted by Sergio Trujillo (jstscanner@gmail.com) on 2012-06-25T18:35:13ZNo. of bitstreams: 5THESIS.zip: 23985030 bytes, checksum: ffd0b3d8795d21e89b36fa591ada5658 (MD5)Plate 3.jpg: 10240810 bytes, checksum: d87bc4aca5c787b077bc111b89c39c5b (MD5)Plate 2.jpg: 9146060 bytes, checksum: e5c4483493d36861dca017ecc3e2d6ed (MD5)Plate 1.jpg: 8301790 bytes, checksum: 4aa4011a748e9cb25dc294df0d863b24 (MD5)RomsosChristopherG2004.pdf: 9252591 bytes, checksum: 8b23fd6637a2d5785855a2353c1345cc (MD5)
  • description.provenance : Submitted by Sergio Trujillo (jstscanner@gmail.com) on 2012-06-25T18:27:31ZNo. of bitstreams: 4Plate 3.jpg: 10240810 bytes, checksum: d87bc4aca5c787b077bc111b89c39c5b (MD5)Plate 2.jpg: 9146060 bytes, checksum: e5c4483493d36861dca017ecc3e2d6ed (MD5)Plate 1.jpg: 8301790 bytes, checksum: 4aa4011a748e9cb25dc294df0d863b24 (MD5)RomsosChristopherG2004.pdf: 9252591 bytes, checksum: 8b23fd6637a2d5785855a2353c1345cc (MD5)
  • description.provenance : Made available in DSpace on 2012-09-06T21:00:52Z (GMT). No. of bitstreams: 5THESIS.zip: 23985030 bytes, checksum: ffd0b3d8795d21e89b36fa591ada5658 (MD5)Plate 3.jpg: 10240810 bytes, checksum: d87bc4aca5c787b077bc111b89c39c5b (MD5)Plate 2.jpg: 9146060 bytes, checksum: e5c4483493d36861dca017ecc3e2d6ed (MD5)Plate 1.jpg: 8301790 bytes, checksum: 4aa4011a748e9cb25dc294df0d863b24 (MD5)RomsosChristopherG2004.pdf: 9252591 bytes, checksum: 8b23fd6637a2d5785855a2353c1345cc (MD5) Previous issue date: 2004-01-29
  • description.provenance : Rejected by Patricia Black(patricia.black@oregonstate.edu), reason: You know why !!! on 2012-06-25T18:29:16Z (GMT)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2012-09-06T21:00:52Z (GMT) No. of bitstreams: 5THESIS.zip: 23985030 bytes, checksum: ffd0b3d8795d21e89b36fa591ada5658 (MD5)Plate 3.jpg: 10240810 bytes, checksum: d87bc4aca5c787b077bc111b89c39c5b (MD5)Plate 2.jpg: 9146060 bytes, checksum: e5c4483493d36861dca017ecc3e2d6ed (MD5)Plate 1.jpg: 8301790 bytes, checksum: 4aa4011a748e9cb25dc294df0d863b24 (MD5)RomsosChristopherG2004.pdf: 9252591 bytes, checksum: 8b23fd6637a2d5785855a2353c1345cc (MD5)
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