Index Catalog // ScholarsArchive@OSU

Automated quantification of distributed landslide movement using circular tree trunks extracted from terrestrial laser scan data

Creator:: Conner, Jeremy C. and Olsen, Michael J.
Abstract:: This manuscript presents a novel algorithm to automatically detect landslide movement in a forested area using displacements of tree trunks distributed across the landslide surveyed repeatedly using terrestrial laser scanning (TLS). Common landslide monitoring techniques include: inclinometers, global position system (GPS), and interferometric synthetic aperture radar (InSAR). While these techniques...
Resource Type:: Article
Full Text:: movement using circular tree trunks extracted from terrestrial laser scan data Automated quantification

Patterns of vertical distribution and migration of zooplankton at Ocean Station “P”

Creator:: Marlowe, Christopher J. and Miller, Charles B.
Abstract:: Stratified bongo net samples taken at depths between 0 and 500 m at Ocean Station “P” in the subarctic Pacific in early July 1971 have been analyzed to determine the vertical structure of the zooplankton community. Distributions for 99 categories of animals have been grouped by factor analysis into five...
Resource Type:: Article
Full Text:: at Ocean Station “P” Patterns of vertical distribution and migration of zooplankton at Ocean

Phenology of particle size distributions and primary productivity in the North Pacific subtropical gyre (Station ALOHA)

Creator:: White, Angelicque E., Letelier, Ricardo M., Whitmire, Amanda L., Barone, Benedetto, Bidigare, Robert R., Church, Matthew J., and Karl, David M.
Abstract:: The particle size distribution (PSD) is a critical aspect of the oceanic ecosystem. Local variability in the PSD can be indicative of shifts in microbial community structure and reveal patterns in cell growth and loss. The PSD also plays a central role in particle export by influencing settling speed. Satellite-based...
Resource Type:: Article
Full Text:: primary productivity in the North Pacific subtropical gyre (Station ALOHA) Phenology of particle size

Evaluation of the effects of silvicultural and fuels treatments on potential fire behaviour in Sierra Nevada mixed-conifer forests

Creator:: Stephens, Scott Lewis
Abstract:: Fire suppression has increased fuel loads and fuel continuity in mixed-conifer ecosystems, resulting in forest structures that are vulnerable to catastrophic fire. This paper models fire behaviour in a mixed-conifer forest and investigates how silvicultural and fuels treatments affect potential fire behaviour. The computer program FARSITE was used to spatially...
Resource Type:: Article
Full Text:: Research Station, USDA Forest Service, Albany, CA 94710, USA Received 2 April 1997; accepted 5 August 1997

Seismic sequence stratigraphy and tectonic evolution of Southern Hydrate Ridge

Creator:: Chevallier, Johanna, Tréhu, Anne Martine, Bangs, Nathan Lawrence Bailey, Johnson, Joel E., and Meyer, H. Jack
Abstract:: This paper presents a seismic sequence and structural analysis of a high-resolution three-dimensional seismic reflection survey that was acquired in June 2000 in preparation for Ocean Drilling Program (ODP) Leg 204. The seismic data were correlated with coring and logging results from nine sites drilled in 2002 during Leg 204....
Resource Type:: Article
Full Text:: ., Torres, M.E., and Colwell, F.S. (Eds.), Proc. ODP, Sci. Results, 204: College Station, TX (Ocean

Leg 202 summary

Creator:: Mix, Alan C., Tiedemann, R., and Blum, P.
Abstract:: More than 7 km of long and relatively continuous sediment sequences from 11 sites in the southeast and equatorial Pacific were recovered during Leg 202 for the study of the Earth’s climate and biogeochemical systems on scales that range from tectonic (millions of years) to orbital (tens to hundreds of...
Resource Type:: Article

Accuracy and suitability of selected sampling methods within conifer dominated riparian zones

Creator:: Marquardt, Theresa, Temesgen, Hailemariam, and Anderson, Paul D.
Abstract:: Sixteen sampling alternatives were examined for their performance to quantify selected attributes of overstory conifers in riparian areas of western Oregon. Each alternative was examined at eight headwater forest locations based on a 0.52 ha square stem maps. The alternatives were evaluated for selected stand attributes (trees per hectare, basal...
Resource Type:: Article
Full Text:: and Watershed Management Program, USDA Forest Service, Pacific Northwest Research Station, 3200 SW

Color Reflectance Spectroscopy : a tool for rapid characterization of deep-sea sediments

Creator:: Mix, Alan C., Rugh, W., Pisias, Nicklas G., Veirs, S., and Leg 138 Scientific Party
Abstract:: During ODP Leg 138, we tested a prototype instrument, developed at Oregon State University, for measuring light reflectance in 511 channels of the visible and near-infrared bands. The technique of reflectance spectroscopy has been used for some time in chemistry and mineralogy (e.g., Hunt, 1977; Gaffey, 1986) and has found...
Resource Type:: Article
Full Text:: under a station- ary illuminating and sensing system so that a depth sequence can be measured

Organic matter and carbon isotope composition of carbonate nodules and associated sediments from middle valley, leg 139

Creator:: Boni, M., Simoneit, Bernd R. T., Früh-Green, G. L., Lief, R. N., and McKenzie, J. A.
Abstract:: Carbonate nodules and associated sediments from Ocean Drilling Program Leg 139 sites of the Middle Valley, Juan de Fuca Ridge, were studied using a combination of inorganic and organic geochemical techniques. The mineralogy and stable isotopic compositions defined three types of nodules, reflecting the conditions of carbonate precipitation. Nodule ingrowth...
Resource Type:: Article
Full Text:: ., Fisher, A.T., and Slack, J.F. (Eds.), 1994. Proc. ODP, Sci. Results, 139: College Station, TX (Ocean

Astronomically calibrated timescales from 6 to 2.5 Ma and Benthic Isotope Stratigraphies, sites 1236, 1237, 1239, and 1241

Creator:: Tiedemann, Ralf, Sturm, Arne, Steph, Silke, Lund, Steven P., and Stoner, Joseph
Abstract:: We present benthic isotope stratigraphies for Sites 1236, 1237, 1239, and 1241 that span the late Miocene–Pliocene time interval from 6 to 2.4 Ma. Orbitally tuned timescales were generated for Sites 1237 and 1241 by correlating the high-frequency variations in gamma ray attenuation density, percent sand of the carbonate fraction,...
Resource Type:: Article
Full Text:: . Results, 202: College Station, TX (Ocean Drilling Program), 1–69. doi:10.2973/ odp.proc.sr.202.210.2007

ScholarsArchive@OSU

Automated quantification of distributed landslide movement using circular tree trunks extracted from terrestrial laser scan data

Patterns of vertical distribution and migration of zooplankton at Ocean Station “P”

Phenology of particle size distributions and primary productivity in the North Pacific subtropical gyre (Station ALOHA)

Evaluation of the effects of silvicultural and fuels treatments on potential fire behaviour in Sierra Nevada mixed-conifer forests

Seismic sequence stratigraphy and tectonic evolution of Southern Hydrate Ridge

Leg 202 summary

Accuracy and suitability of selected sampling methods within conifer dominated riparian zones

Color Reflectance Spectroscopy : a tool for rapid characterization of deep-sea sediments

Organic matter and carbon isotope composition of carbonate nodules and associated sediments from middle valley, leg 139

Astronomically calibrated timescales from 6 to 2.5 Ma and Benthic Isotope Stratigraphies, sites 1236, 1237, 1239, and 1241

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