Index Catalog // ScholarsArchive@OSU

Ocean Solutions, Earth Solutions

Creator:: Wright, Dawn J.
Abstract:: What affects the oceans affects terra firma. Ocean Solutions, Earth Solutions gathers the insights of more than 50 ocean and coastal science researchers exploring ocean components and their relationships, patterns, and trends over time and space. The book's 16 chapters feature geographic information system (GIS) best practices and include additional...
Resource Type:: Book
Full Text:: and thus the earth. The book’s 16 chapters present high-level ocean science research from the

Probing the Earth’s deep interior through geochemistry

Creator:: White, William M.
Abstract:: Basaltic volcanism provides a window into the Earth’s mantle. Seeing through this window requires seeing through the processes of magma genesis and evolution that distort the view. Radiogenic isotope ratios, and to a lesser extent incompatible elements and stable isotope ratios, allow us to see through these distortions and infer...
Resource Type:: Article
Full Text:: ACKNOWLEDGEMENTS Science is about ideas, ideas about how the Earth works in our field, and how we evaluate ideas

Comparative analysis of Google Earth versus traditional paper maps in middle school earth science education

Creator:: Edstrom, Jillian Aasta
Abstract:: As GIS becomes more prominent in academic classrooms at all levels of education, the subject of geography and its related disciplines can be approached with a geospatial technology perspective, using new tools and lesson plans. The implementation of Google Earth in classrooms is just one example of this. Research was...
Resource Type:: Capstone Project
Full Text:: grade earth science classrooms, with Google Earth and paper map versions of a Bering Glacier lesson

Oregon 4-H earth science project : leader guide

Creator:: Thompson, Virginia, Bourdeau, Alex, and Oregon State University. Extension Service
Abstract:: Published July 2000. A more recent revision exists. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Other
Full Text:: Oregon 4-H Earth Science Leader Guide are designed to be used sequentially, beginning at chapter 1 and

An evaluation of the Earth Resources Technology Satellite (ERTS-1) multispectral scanner as a tool for the determination of lacustrine trophic state

Creator:: Boland, Dale H. P.
Abstract:: This study evaluates the Earth Resources Technology Satellite- One (ERTS-1) multispectral scanner (MSS) as a means of predicting lacustrine trophic state and the magnitude of selected trophic state indicators. Numerical classificatory methods are employed to ascertain the trophic character of 100 lakes in Minnesota, Wisconsin, Michigan, and New York using...
Resource Type:: Dissertation
Full Text:: The Earth Resources Technology Satellite 4 Orbit Parameters and Earth Coverage 4 Instrumentation 7

Long baroclinic planetary waves in a nonzonal vertically sheared mean flow

Creator:: Cerovecki, Ivana
Abstract:: We consider long planetary waves of annual period linearized about a steady, wind-driven subtropical (ST) gyre circulation. The circulation divides the gyre into an eastern zone (EZ) where only the surface layer is in steady motion and a western zone (WZ) where both the surface and the middle layer are...
Resource Type:: Dissertation
Full Text:: enthusiasm for science and his kind nature make him a truly outstanding per- son. Rick Salmon has always

Earth First! : An Ethnography of Communication

Creator:: Vondracek, Julie A.
Abstract:: This study examined the culture of Earth First!, an environmental activist movement. The study was limited to two groups of Earth First! in the Northwest, Corvallis and Eugene. The goal was to discover what it is to be a communicatively competent member of Earth First! The method used to address...
Resource Type:: Masters Thesis
Full Text:: Studies in Communication, Sociology and Political Science presented on January 22, 1991. Title: Earth

Near earth object collisional mitigation via intense neutron and photon sources : a study in asteroid interdiction and energy coupling

Creator:: Sanders, JC
Abstract:: The large population of 2r>100m near earth objects (NEOs) presents a certain hazard to life on earth. It has been proposed that a nuclear device may be used to alter the course of such objects, thereby averting a catastrophic collision with the earth. The asteroid interdiction problem includes a number...
Resource Type:: Honors College Thesis
Full Text:: Near Earth Object Collisional Mitigation Via Intense Neutron and Photon Sources: a Study in Asteroid

Late Cenozoic Climate, Ice-sheet and Earth-surface Evolution Derived from Terrestrial and Marine Sedimentary Archives

Creator:: Bill, Nicholas S.
Abstract:: The goals of this dissertation are centered on understanding changes in Earth surface and climate systems through the use of geologic proxies as records of past changes in these systems. Specifically, this dissertation (1) establishes a new chronology for retreat of the Ross Sea sector of the West Antarctic Ice...
Resource Type:: Dissertation
Full Text:: driven by hydrofracturing and ice cliff failure: Earth and Planetary Science Letters, v. 412, p. 112–121

1983/1984 Annual Report

Creator:: Hatfield Marine Science Center
Resource Type:: Other
Full Text:: . Earth and Planetary Science Letters. In Press. HARVEY, JIM Harvey, Jim, Robin Brown, and Bruce Mate

A Genetic Algorithm Approach to Imaging the Internal Southern San Andreas Fault Zone

Creator:: Reinhard, Hannah R.
Abstract:: The southern San Andreas fault (SSAF) is the fault segment with the highest 30-year probability of causing a moderate to large magnitude earthquake in California, yet key structural characteristics of the fault remain unconstrained, particularly in the Coachella Valley where the fault splits into the Banning (BF) and Mission Creek...
Resource Type:: Masters Thesis
Full Text:: degree of Master of Science in Ocean, Earth, and Atmospheric Sciences presented on June 12, 2023. Title

Unraveling the Diagenetic Cycling and Sequestration of Rare Earth Elements (REEs) in Marine Sediments to Understand REE Accumulation in Ancient Shales

Creator:: Yang, Jon
Abstract:: The rare earth elements (REEs) have been established as powerful tracers for a range of physiochemical processes occurring in the natural environment. They also hold significant economic importance as many technological advancements are reliant upon the REEs for their unique magnetic, luminescent, and electrochemical characteristics. In sedimentary settings, understanding the...
Resource Type:: Dissertation
Full Text:: Yang for the degree of Doctor of Philosophy in Ocean, Earth, and Atmospheric Science presented on

2010/2011 Annual Report

Creator:: Hatfield Marine Science Center
Abstract:: Report year ends June 30
Resource Type:: Other
Full Text:: 19 College of Science 19 Department of Science and Math Education 19 Department of Zoology 21

Plant-Pollinator Interactions in a Changing World: Cryptic Specialization, Pollinator Movement, and Landscape Genetics of Pollinator-Dependent Plants

Creator:: Gannon, Dustin G.
Abstract:: Plant-pollinator mutualisms are one of the most prevalent and economically important mutualisms in nature. Like many other ecological systems, plant-pollinator communities are threatened by anthropogenic activity, both directly (e.g., habitat conversion and fragmentation) and indirectly (e.g., climate change). While we are aware of many of the activities that adversely impact...
Resource Type:: Dissertation
Full Text:: , discussing science and philosophy while careening down narrow root-ridden trails, and Andy for his

Sarah Grimke's Rhetoric for Empowerment : Her Life and Letters

Creator:: Hamilton, Susan E. Maier
Abstract:: In twentieth century America, women continue the age-old struggle for recognition as whole, intelligent individuals, not just an "other," less hearty, less deserving or less capable being than man. Sarah Grimke spoke of the inequalities over 150 years ago during the abolitionist movement when she compiled her major arguments into...
Resource Type:: Masters Thesis
Full Text:: rhetorician. Her Letters on the Equality of the Sexes and the Condition of Woman begins in Letter I with a

New Insights into Mantle Dynamics from Helium Isotopes and Argon Geochronology

Creator:: Konrad, Kevin
Abstract:: Earth’s mantle extends to nearly 3000 km depth, comprises >80 % of Earth’s total volume, and has the largest influence on the primordial and radiogenic heat budget. Despite its importance, the structure and composition of the mantle is still debated. There are three primary models for Earth’s mantle structure that...
Resource Type:: Dissertation
Full Text:: : Earth and Planetary Science Letters, v. 227, no. 3, p. 531-538. Castillo, P. R., Scarsi, P., and Craig

Kinematics and Dynamics of a Model Eastern-boundary Poleward Undercurrent

Creator:: Duran, Rodrigo
Abstract:: A carefully calibrated primitive-equation model from 41°N to 48°N is used to study the poleward undercurrent off the US west coast. Chapter 2 describes poleward flow over the slope from Eulerian and Lagrangian perspectives. The model is robust, in the sense of several characteristics being qualitatively consistent with observational and...
Resource Type:: Dissertation
Full Text:: the degree of Doctor of Philosophy in Earth, Ocean and Atmospheric Sciences presented on December 5

Wave-by-Wave Forecasting via Assimilation of Marine Radar Data

Creator:: Simpson, Alexandra Joyce
Abstract:: A wave-by-wave forecasting system is desired for optimization of wave energy conversion devices and for improving safety of vessel-based marine operations. This study outlines the first validation attempts of a recently developed forecasting system called Wavecast. The forecasting approach uses X-Band marine radar images for data assimilation, then reconstructs and...
Resource Type:: Masters Thesis
Full Text:: THE THESIS OF Alexandra Joyce Simpson for the degree of Master of Science in Civil Engineering

Global AIS Data Visualization on a 3D Earth

Creator:: Yi, Hongyan
Abstract:: The constant increase in marine traffic requires a strategy to manage safety. The automatic identification system (AIS) was developed as a navigation safety device for ships in the 1990s. AIS is intended, primarily, to allow ships to view marine traffic in their area and to be seen by that traffic....
Resource Type:: Capstone Project
Full Text:: ................................................................................. 7 4. Earth, Clouds and Stars

Observations on the evolution of shoaling nonlinear internal waves in Massachusetts Bay using shipboard X-band radar

Creator:: Nelson, Brian G.
Abstract:: During four cruises in July and September of 2008 and 2009, the shipboard X-band radar was tuned to detect the modulated bands of surface roughness caused by converging and diverging currents associated with high-frequency nonlinear internal wave (NLIW) packets. The data collected was used to quantify the propagation direction (ϴp),...
Resource Type:: Masters Thesis
Full Text:: the degree of Master of Science in Oceanography presented on December 2, 2009 Title: Observations

Fourth Oregon climate assessment report. State of climate science : 2019

Creator:: Mote, Philip W., Abatzoglou, John, Dello, Kathie D., Hegewisch, Katherine, Rupp, David E., and Oregon Climate Change Research Institute
Abstract:: This report, required by state law under HB3543, provides a comprehensive assessment of the state of science of climate change as it pertains to Oregon, covering the physical, biological, and social dimensions. The first chapter summarizes the current state of knowledge of physical changes in climate and hydrology, focusing on...
Resource Type:: Technical Report
Full Text:: Climate Change Research Institute, College of Earth, Ocean and Atmospheric Sciences, Oregon State

Coupling of Boundary Layer Dynamics, Turbulence, and Moisture Transport to Cloud Characteristics and Aerosol Concentrations

Creator:: Henze, Dean C.
Abstract:: Uncertainties in general circulation model (GCM) representations of marine boundary layer (MBL) shallow cloud cover contribute substantially to the spread in model predictions of future climate. Further uncertainties in GCM output arise from an incomplete understanding of cloud-aerosol interactions. For example, the Fifth Assessment Report from the Intergovernmental Panel on...
Resource Type:: Dissertation
Full Text:: . APPROVED: Co-major Professor, representing Ocean, Earth, and Atmospheric Science Co

Using An Array of NE Pacific Margin Sediment Samples to Link Land and Ocean Responses to Glacial-Interglacial Climate Variability

Creator:: Wilson, Kiya L.
Abstract:: Variability in the terrigenous (land-derived) fraction of marine sediments, including pollen and rock fragments, reflects the effects of regional climate change on continentally derived runoff, ice extent, vegetation and ocean circulation. The transport of this continental material to the seafloor must be understood in order to interpret the terrigenous sediment...
Resource Type:: Honors College Thesis
Full Text:: . Wilson for the degree of Honors Baccalaureate of Science in Earth Science presented on May 24, 2011

From sister to sister to woman : the role of sororities in the social transmission of gender

Creator:: Gilmore, Jennifer
Abstract:: Sororities play an important role in the process by which sorority women become gendered by influencing members' ideas about what it means to be a woman. Women and men become gendered through regular social interaction with other women and men, and sororities have a particularly strong impact on their members...
Resource Type:: Masters Thesis
Full Text:: sisterhood, and a lavalier. A lavalier is a necklace with Greek letters attached to it. It is typically

Analyzing the use of the acellular DCFH assay as a means of determining oxidative stress induced in zebrafish embryos exposed to lanthanide oxide nanoparticles

Creator:: Engstrom, Arek
Abstract:: The ability of nanoparticles (NPs) to induce oxidative stress on organisms has been linked to NP cytotoxicity and genotoxicity for a variety of organisms. One proposed mechanism of this increased oxidative stress is the ability of NPs to generate reactive oxygen species (ROS). Due to the dynamic nature and small...
Resource Type:: Honors College Thesis
Full Text:: science and there are many unknowns. Research suggests that the mechanisms that govern the fate and

Satellite Monitoring of Earth’s Surface Temperature : Effects of Land Cover, Disturbance, and a Changing Climate

Creator:: Mildrexler, David J.
Abstract:: The Earth’s surface is experiencing unprecedented change. Humanity’s growing population, expanding land-use footprint, and increasing global emissions of atmospheric greenhouse gases affect a vast number of species on Earth and the functioning of virtually all ecosystems. Given the vital interactions and feedbacks between the Earth’s land surface and climate, measurements...
Resource Type:: Dissertation
Full Text:: key topics in Earth system science; vegetation disturbance, cryosphere melt, and heat waves

Constraining Upper Crustal Magmas in the North Chilean Andes

Creator:: Lewis, Charles T.
Abstract:: The 4.59-4.18 Ma Caspana ignimbrite, found within the Altiplano-Puna Volcanic Complex (APVC), is the result of an ~8km3 eruption that took place during the Neogene Ignimbrite Flare-up in the N. Chilean Andes. While most of the eruptions during this flare up are large, monogenetic eruptions, the Caspana that is characterized...
Resource Type:: Undergraduate Thesis
Full Text:: Andes Chuck Lewis College of Earth, Ocean, and Atmospheric Sciences Oregon State University

Deep-sea sediment paleomagnetism : a case study from the North Atlantic

Creator:: Strano, Sarah Elianna
Abstract:: Sedimentary records from the North Atlantic, instrumental in the development of modern paleo-geomagnetic concepts, show a highly variable field even during times of constant polarity. Yet, our understanding of how the magnetization is acquired in the sediments is poorly understood. Primary magnetizations preserved in deep-sea sediments are known to be...
Resource Type:: Dissertation
Full Text:: THE DISSERTATION OF Sarah Elianna Strano for the degree of Doctor of Philosophy in Earth, Ocean and

Atmospheric nitrous oxide in the pre-800 ka atmosphere from ice cores from the Allan Hills, Antarctica

Creator:: Stock, Marika P.
Abstract:: Nitrous oxide is an important greenhouse gas that has both natural and anthropogenic sources in the modern atmosphere (Ciais et al., 2013). This project expanded the knowledge of the history of atmospheric N2O in the geologic past by measuring N2O concentrations in air trapped in very old polar ice. A...
Resource Type:: Honors College Thesis
Full Text:: adapted specific methods developed at the School of Earth and Environmental Science, Seoul National

On the Volcanic and Geodynamic Evolution of the Shatsky Rise and the Louisville Seamount

Creator:: Heaton, Daniel E.
Abstract:: Large igneous provinces (LIPs) and intraplate seamounts reflect of anomalous mantle melting and illuminate interior processes of the Earth. These features are in all ocean basins and show the mantle’s evolution over time, then can provide information on plate tectonic processes, such as plate motion over time, spreading ridge formation,...
Resource Type:: Dissertation
Full Text:: ., & Peirce, C. (2010). Crustal intrusion beneath the Louisville hotspot track. Earth and Planetary Science

Deciphering Quaternary Geomagnetic, Glacial, and Depositional Histories Using Paleomagnetism in Tandem with Other Chronostratigraphic and Sedimentological Approaches

Creator:: Reilly, Brendan T.
Abstract:: Stratigraphy and chronology are essential to sedimentological study of Earth system histories. And, stratigraphy and chronology are often challenging and interesting problems themselves. The Quaternary (2.588 Ma - present) experienced paleoenvironmental and paleo-geomagnetic variability well outside the range of the recent instrumental record, providing the opportunity to place recent observations...
Resource Type:: Dissertation
Full Text:: ; Mcdougall and Tarling, 1963), magnetostratigraphy has become an essential tool in Earth science, with some

A 37,000-year record of paleomagnetic and environmental magnetic variability from Burial Lake, Arctic Alaska

Creator:: Dorfman, Jason Michael
Abstract:: Burial Lake sediments from the Noatak Basin in the northwest Brooks Range of Arctic Alaska (68.43°N, 159.17°W, 21.5 m water depth) provide the oldest continuous lacustrine record of paleo-environmental change and paleomagnetic secular variation (PSV) in eastern Beringia. A precise radiocarbon chronology, determined through accelerator mass spectrometry (AMS) allows us...
Resource Type:: Masters Thesis
Full Text:: geomagnetic modulation of cosmogenic isotopes. Earth and Planetary Science Letters 209, 113–130. Stoner, J.S

The Global Overturning Circulation Since the Last Glacial Maximum Based on Marine Authigenic Neodymium Isotopes

Creator:: Du, Jianghui
Abstract:: The Global Overturning Circulation (GOC) is a major component of the global climate system. Understanding its behavior is pertinent to our prediction of climate change in the future. The lack of long-term observations of GOC in the modern instrumental era necessitates studies of GOC using paleoceanographic records. Of great interest...
Resource Type:: Dissertation
Full Text:: DISSERTATION OF Jianghui Du for the degree of Doctor of Philosophy in Ocean, Earth, and Atmospheric

A petrogenetic model for the Caribbean large igneous province

Creator:: Krawl, Kyle A.
Abstract:: The Caribbean Plateau is an oceanic large igneous province (CLIP). A widely accepted model for LIP petrogenesis proposes that these large bodies of igneous rock are formed by decompression melting associated with upwelling mantle plume heads during the initiation of hotspot activity. According to this classical model, petrogenesis occurs over...
Resource Type:: Masters Thesis
Full Text:: ABSTRACT OF THE THESIS OF Kyle A. Krawl for the degree of Master of Science in Ocean, Earth and

Exploring the Relationships Between Stable Water Isotope Ratios and Large Scale Atmospheric Circulation in Paleoclimate Settings Using an Isotope-Enabled General Circulation Model

Creator:: Niezgoda, Kyle
Abstract:: Climate model simulations and paleoclimate proxies are two tools that enable an understanding of the climate history of the Earth. When utilized together, they form a powerful paradigm for understanding past changes. Proxies are the only physical link to the past conditions on Earth, and models “fill in the gaps”...
Resource Type:: Dissertation
Full Text:: Holocene and deglacial Asian monsoon record from Dongge Cave, China. Earth and Planetary Science Letters

Concentration-Runoff Relationships of Contrasting Small Mountainous Rivers in the Pacific Northwest, USA: Insights into the Weathering of Rhenium

Creator:: Ghazi, Layla
Abstract:: This study examines dissolved rhenium (Re) as a function of water runoff using river samples from two contrasting watersheds, the Eel and Umpqua Rivers in the Pacific Northwest, USA. These watersheds share many key characteristics in terms of size, discharge, climate, and vegetation, but they have a 10-fold difference in...
Resource Type:: Masters Thesis
Full Text:: mudrocks and the Os isotope composition of Jurassic seawater. Earth and Planetary Science Letters 167

Particulate Trace Metal Fluxes in the Western Arabian Sea and Their Links to Marine Productivity

Creator:: Flannery, Kelly M.
Abstract:: Many trace elements (e.g., Zn, Cd, Mo) are essential phytoplankton micronutrients, making them crucial to the marine ecosystem and ultimately the carbon cycle. Because of this association trace metals are also utilized in paleoceanographic studies (e.g., Mo, Cd). However, not much is known about what controls the cycling of these...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Kelly M. Flannery for the degree of Master of Science in Ocean, Earth

An Interdisciplinary approach towards understanding late Pleistocene ice sheet change

Creator:: Cuzzone, Joshua K.
Abstract:: The results presented in this dissertation address a number of questions regarding late Pleistocene and Holocene ice-sheet and climate interactions, spanning disciplines involving paleoclimatology and atmospheric science. These studies use various techniques in geochemistry, climate modeling, and ice-sheet modeling to address ice- sheet response to climate and the attendant interactions...
Resource Type:: Dissertation
Full Text:: . Cuzzone for the degree of Doctor of Philosophy in Ocean, Earth, and Atmospheric Science presented on

New Foraminifera-Based Proxies to Trace Changes to the Organic and Inorganic Carbon System Since the Last Glacial Maximum

Creator:: Fritz-Endres, Theresa
Abstract:: The production of carbon and export to deep ocean sediments is linked to carbon partitioning between the ocean and atmosphere and is a key driver of climate change over the glacial-interglacial transition. Yet conflicting reconstructions create barriers to understanding changes to the carbon system over this important climate transition. Production...
Resource Type:: Dissertation
Full Text:: foraminifera from the vicinity of the Orinoco River mouth. Earth and Planetary Science Letters, 383, 45-57

Connecting Science to Policymakers, Managers, and Citizens

Creator:: Lubchenco, Jane, Menge, Bruce A., Barth, John A., Carr, Mark H., Caselle, Jennifer E., Chan, Francis, Fulton-Bennett, Heather K., Gaines, Steven D., Kroeker, Kristy J., Milligan, Kristen, Palumbi, Steven R., and White, J. Wilson
Abstract:: Twenty years ago, the creation of a new scientific program, the Partnership for Interdisciplinary Studies of Coastal Oceans (PISCO), funded by the Packard Foundation, provided the opportunity to integrate—from the outset—research, monitoring, and outreach to the public, policymakers, and managers. PISCO’s outreach efforts were initially focused primarily on sharing scientific...
Resource Type:: Article
Full Text:: : PARTNERSHIP FOR INTERDISCIPLINARY STUDIES OF COASTAL OCEANS CONNECTING SCIENCE TO POLICYMAKERS, MANAGERS, AND

Magnetotelluric Studies of Tectonic Systems and Volcanic Areas of North America

Creator:: Bowles-Martinez, Esteban
Abstract:: Magnetotellurics is used in two geologic settings on scales ranging from 1000-km tectonic structures to local features hundreds of meters wide. These areas are the Midcontinent Rift System (MRS) and its related mantle plume in the northern Midwestern United States and Newberry Volcano in central Oregon. The MRS study uses...
Resource Type:: Dissertation
Full Text:: -Martinez for the degree of Doctor of Philosophy in Ocean, Earth, and Atmospheric Sciences presented on

Undersea with GIS

Creator:: Wright, Dawn
Abstract:: Out of print (November 1, 2010)
Resource Type:: Book
Full Text:: , generates most of the oxygen in the atmosphere, absorbs carbon dioxide, shapes planetary chemistry, and

The effects of clouds on transient baroclinic eddies in a Mars General Circulation Model

Creator:: Rucker, Michael S.
Abstract:: The low-level baroclinic eddy activity seen in the NASA Ames Mars General Circulation Model (MGCM) for simulations under three annual dust cycles are characterized. Simulations were conducted with both radiatively active and radiatively inert clouds (RAC and non-RAC, respectively) for 11 continuous annual cycles for each dust case. Model results...
Resource Type:: Masters Thesis
Full Text:: of Science in Ocean, Earth, and Atmospheric Sciences presented on August 18, 2014. Title: The

Understanding Signals of the South Pole Ice Core: Chronology, Climate, and Firn Processes

Creator:: Epifanio, Jenna A.
Abstract:: The South Pole ice core (SPC14), drilled in the field seasons of 2014/2015 and 2015/2016, is an intermediate length, 1,751-m ice core which preserves a 54,000-year record of past climate and atmospheric composition. The SPC14 ice core adds to the spatial grid of ice cores in Antarctica extending into the...
Resource Type:: Dissertation
Full Text:: . Epifanio for the degree of Doctor of Philosophy in Ocean, Earth, and Atmospheric Science presented on

Investigation of Deep Seismic Reflections Beneath the Forearc in the South Central Chile Subduction Zone

Creator:: Zhang, Edward
Abstract:: The south central Chilean margin is one of the most seismically active subduction zones on Earth, generating some of the largest earthquakes on the planet, including the largest ever recorded in 1960 near Valdivia, Chile (Mw 9.5). Using the 15 km streamer and 6600 in3 tuned seismic airgun array aboard...
Resource Type:: Masters Thesis
Full Text:: degree of Master of Science in Ocean, Earth, and Atmospheric Sciences presented on August 26, 2019

Interpreting Climate of the Past from High-Resolution Ice Core Records of Methane

Creator:: Lee, James E.
Abstract:: Methane is a product of biogeochemical processes which respond to changes in climate. The history of atmospheric methane is recorded by ice cores providing insight into past changes in these biogeochemical processes. This dissertation is comprised of three studies which focus on centennial- and millenial-scale variability of methane from ice...
Resource Type:: Dissertation
Full Text:: degree of Doctor of Philosophy in Ocean, Earth, and Atmospheric Science presented on October 4, 2017

Turbulence and biophysical fluxes in the near surface ocean

Creator:: Hoecker-Martínez, Martín
Abstract:: Vertical transports of plankton, momentum, heat, and turbulence are modeled. A novel integration of high resolution turbulence and biophysical modeling is used to show the influence of a Kelvin-Helmholtz instability on the vertical migration of simple gyrotactic organisms. A viscous limit on mixing driven by shear turbulence is proposed. Large...
Resource Type:: Dissertation
Full Text:: Philosophy in Ocean, Earth, and Atmospheric Sciences presented on August 20, 2015. Title: Turbulence and

Modeling Arctic melt ponds using a resolved ice model with GCM forcing

Creator:: Collins, Lee E.
Abstract:: The albedo of Arctic sea ice depends greatly on the formation of melt ponds. These ponds form in depressions on the ice as surface snow melts during the summer months, and their location is determined mainly by the initial snow topography. Using a high resolution sea ice model forced with...
Resource Type:: Masters Thesis
Full Text:: Master of Science in Ocean, Earth, and Atmospheric Sciences presented on October 23, 2013. Title

Impact of Dansgaard-Oeschger and Heinrich Events on the Latitudinal Distribution of Methane Sources during Marine Isotope Stage 3

Creator:: Edwards, Jon S.
Abstract:: Understanding how the latitudinal distribution of methane sources changed between stadial and interstadial climate states during the last glacial period can provide important clues about how terrestrial hydroclimate and ecosystems evolved between these different states. The punctuation of the millennial-scale structure by Heinrich events is also of interest in this...
Resource Type:: Masters Thesis
Full Text:: for the degree of Master of Science in Ocean, Earth and Atmospheric Science presented on September 7

Linear theory of roll instabilities in the ocean surface layer

Creator:: Duncombe, Jenessa R.
Abstract:: This thesis describes the results of a linear stability analysis conducted on a simulated wind-forced ocean front. The ocean surface boundary layer regulates exchanges between the ocean and atmosphere, and the presence of turbulence in the surface layer can greatly impact climate and ocean life. Past research has shown that...
Resource Type:: Masters Thesis
Full Text:: ABSTRACT OF THE THESIS OF Jenessa Rose Duncombe for the degree of Master of Science in Ocean, Earth and

The leading edge of a tropical instability wave : interpretation as a gravity current

Creator:: McHugh, Elizabeth Helen
Abstract:: A sharp temperature front, oriented along the south-west corner of the leading edge of a Tropical Instability Wave (TIW) warm trough, was encountered at 0°N, 140°W on November 2, 2008 and detected by a 0.45°C increase in SST that occurred over 7 s. The distinct SST signal was observed at...
Resource Type:: Masters Thesis
Full Text:: THESIS OF Elizabeth Helen McHugh for the degree of Master of Science in Ocean, Earth and

Source Parametrization of Earthquakes along Juan de Fuca Transform Boundaries

Creator:: Sapkota, Birat
Abstract:: The Juan de Fuca plate system is what remains of Farallon plate subducting under the continental North American plate. Blanco Transform Fault Zone (BTFZ) consists of a network of strike-slip faults discontinued by pull apart depressions which o↵sets the Juan de Fuca Ridge and the Gorda Ridge. Detailed analysis of...
Resource Type:: Masters Thesis
Full Text:: Birat Sapkota for the degree of Master of Science in Ocean, Earth, and Atmospheric Sciences presented

Wind-current Interactions of the Sri Lanka Dome and Tropical Indian Ocean

Creator:: Cullen, Kerstin
Abstract:: The southwest monsoon, which may be idealized as the northward movement of the intertropical convergence zone in the Indian Ocean associated with differential heating of land and ocean, brings a seasonal reversal of currents and winds in the Bay of Bengal and the Arabian Sea. Atmospheric convection from monsoon activity...
Resource Type:: Dissertation
Full Text:: degree of Doctor of Philosophy in Ocean, Earth and Atmospheric Science presented on September 17, 2020

Insights into Centennial-Scale Salt Marsh Morphodynamics from the Oregon Coast

Creator:: Peck, Erin K.
Abstract:: Quantification and comparison of morphological changes over the last ~300 y in Oregon salt marshes provide valuable insights into the tectonic, hydroclimatic, and anthropogenic processes shaping this important intertidal zone. Understanding of the rates and drivers of salt marsh change contextualizes intertidal habitats within the sediment routing system (i.e., source...
Resource Type:: Dissertation
Full Text:: received from the Advancing Science in America (ARCS) Foundation, especially my sponsors Elizabeth and

The Ocean Circulation and Carbon Cycle during the Last Glacial Maximum

Creator:: Muglia, Juan
Abstract:: During the Last Glacial Maximum (LGM, ∼ 21 ky before present) the atmospheric CO2 concentration was about 100 ppm lower than its pre-industrial (PI)value. The missing carbon from the atmosphere must have been stored in thedeep ocean during this period, but the mechanisms driving such re-distribution ofthe carbon cycle are...
Resource Type:: Dissertation
Full Text:: was published as a research letter in the journal Geophysical Research Letters (Muglia and Schmittner

Investigation of Slip and Tectonics of the Blanco Transform Fault using High-resolution Ocean Bottom Seismic Data

Creator:: Kuna, Václav M.
Abstract:: The dissertation concentrates on seismicity of the Blanco Transform Fault (BTF), a 350-km-long oceanic transform fault (OTF) in the northeast Pacific Ocean. I analyze data collected during the Blanco Transform Fault OBS experiment, which comprised of a 1-year deployment of 55 three-component seismometers co-located with differential pressure gauges on and...
Resource Type:: Dissertation
Full Text:: the degree of Doctor of Philosophy in Ocean, Earth and Atmospheric Sciences presented on March 11

A study on the effects of enhanced pCO2 on open ocean diazotrophic assemblages

Creator:: Gradoville, Mary Rose
Abstract:: Biological di-nitrogen (N₂) fixation is a key process in open-ocean ecosystems, where the new nitrogen (N) provided by marine diazotrophs can support a large fraction of primary productivity and carbon (C) drawdown. Recent laboratory studies have shown that elevated pCO₂ enhances the rate of N₂ fixation by select laboratory isolates...
Resource Type:: Masters Thesis
Full Text:: . Earth and Planetary Science Letters 234:299-315. Riebesell, U., K. Schulz, R. Bellerby, M. Botros, P

Characterizing drivers of microbial community structure and function in diverse marine sediments

Creator:: Graw, Michael F.
Abstract:: Marine sediments are one of the largest habitats for microbial life on earth. These microorganisms play critical roles in biogeochemical cycling both within the subsurface and between the sediment and water columns. However, microbial communities in sediments are highly heterogeneous and the factors defining microbial community structure and metabolic function...
Resource Type:: Dissertation
Full Text:: Michael F. Graw for the degree of Doctor of Philosophy in Ocean, Earth, and Atmospheric Science

Autonomous in situ measurements of estuarine surface PCO₂ : instrument development and initial estuarine observations

Creator:: Wall, Colleen McKay
Abstract:: A novel, low-cost instrument capable of measuring surface water PCO₂ was designed for use in dynamic, shallow-water environments. The instrument was tested in the Yaquina River Estuary, a macrotidal estuary known to experience a wide range of conditions ranging from dominance by the coastal ocean during summer upwelling to substantial...
Resource Type:: Masters Thesis
Full Text:: Colleen McKay Wall for the degree of Master of Science in Ocean, Earth and Atmospheric Sciences presented

Providing the best turbulent heat flux estimates from eddy correlation and bulk methods using DYNAMO data

Creator:: Marion, June Raven
Abstract:: In this thesis, data collected during the Dynamics of the Madden Julian Oscillation (DYNAMO) field campaign, conducted in the Indian Ocean in Fall of 2011, is used to compute heat fluxes at the air-sea interface by evaluating eddy covariances and bulk aerodynamic formulae. Errors in daily average gridded fluxes computed...
Resource Type:: Masters Thesis
Full Text:: the degree of Master of Science in Ocean, Earth and Atmospheric Sciences presented on August 19, 2014

Understanding the Impact of Global Warming on Orographic Rain Shadows: Insights from a Pseudo-Global Warming Simulation over the Western United States

Creator:: Koszuta, Matthew
Abstract:: Some studies using regional climate models (RCMs) suggest a weakening of the climatological rain-shadow along the Cascade and Sierra Nevada mountains during the western US cool-season. To identify the possible mechanisms of rain-shadow weakening under warming, a new set of 30-year, high-resolution (6 km) pseudo-global warming (PGW) simulations were analyzed...
Resource Type:: Masters Thesis
Full Text:: ABSTRACT OF THE THESIS OF Matthew Koszuta for the degree of Master of Science in Ocean, Earth, and

Enhancing Small Sample Foraminifera Analysis through Innovative Mass Spectrometry Techniques: A Pathway to Deeper Paleoceanographic Insights

Creator:: Meyer, Grace
Abstract:: Stable oxygen and stable carbon isotopes of foraminifera are widely applied in paleoceanographic reconstructions. Oxygen and carbon isotopes are typically measured using pooled sample analysis (i.e., the combination of several shells) or single-shell analysis (typically restricted to heavier shells that weigh above 10 µg). With pooled sample analysis, where many...
Resource Type:: Masters Thesis
Full Text:: for the degree of Master of Science in Ocean Earth and Atmospheric Science presented on September 12

Atmospheric and Sea Ice Circulation Patterns During Lead Formation at Point Barrow

Creator:: Jewell, MacKenzie E.
Abstract:: In winter and spring, ice-coast interactions driven by winds and ocean currents cause sea ice fractures (leads) to form repeatedly along Arctic coastlines. These events are often associated with rapid and expansive changes in sea ice drift and state that are challenging to predict and represent in models. We investigate...
Resource Type:: Masters Thesis
Full Text:: . Jewell for the degree of Master of Science in Ocean, Earth and Atmospheric Sciences presented on

Vertical Structure of the Lower Troposphere in a Changing Arctic

Creator:: Watkins, Daniel M.
Abstract:: The Arctic climate system is changing dramatically as a response to rising atmospheric greenhouse gas concentrations. Key indicators of Arctic change include thinning and retreating of Arctic pack ice, thawing permafrost, greening tundra, and rising surface temperatures. The structure of the atmospheric boundary layer influences and is influenced by processes...
Resource Type:: Dissertation
Full Text:: for the degree of Doctor of Philosophy in Ocean, Earth, and Atmospheric Sciences presented on May 12

Spatiotemporal Variability in Benthic-Pelagic Coupling on the Oregon-Washington Shelf: An Investigation of Bottom Water and Benthic Flux Data

Creator:: Hughes, Anna R.
Abstract:: Continental shelf sediments are sinks for dissolved oxygen and sources of many major and minor nutrients required for oceanic surface primary production, resulting in a strong coupling between benthic and pelagic biogeochemical cycling. However, the influence and spatiotemporal variability of benthic remineralization on bottom-water chemistry and the supply of nutrients...
Resource Type:: Masters Thesis
Full Text:: degree of Master of Science in Ocean, Earth, and Atmospheric Sciences, presented on November 17, 2023

An Experimental Investigation of Interstitial Air Movement in Seasonal Snow

Creator:: Drake, Stephen A.
Abstract:: Atmospheric pressure changes do not stop at the permeable snow surface but rather propagate into it. These pressure changes range from high-amplitude, low-frequency events caused by seasonal cycles and synoptic weather systems to small-amplitude, high-frequency events caused by topographic features and turbulence. The effect of pressure changes on interstitial air...
Resource Type:: Dissertation
Full Text:: . APPROVED: Major Professor, representing Ocean, Earth and Atmospheric Sciences Dean of

Heat flow results from plate boundary observatory boreholes in California

Creator:: McDonald, Kyle Joseph
Abstract:: An integral component to understanding lithospheric rheology, fault mechanics, and geodynamic processes is knowledge of the subsurface thermal regime. This study presents thermal data from 26 new borehole sites drilled during the installation of borehole strain meters as part of the Plate Boundary Observatory (PBO). These data extends existing coverage...
Resource Type:: Masters Thesis
Full Text:: Kyle Joseph McDonald for the degree of Master of Science in Ocean, Earth, and Atmospheric Science

Investigating the Paleoseismic Potential of Small, Southern Cascadia Lakes

Creator:: Ross, Ann Elizabeth Morey
Abstract:: Marine and coastal sedimentary archives show that the Cascadia Subduction Zone can generate great earthquakes of ~M9, most recently in 1700 CE, yet we still know little of the impacts of these events inland of the Pacific coast. Inland lakes have recently been exploited for their use as paleoseismic records...
Resource Type:: Dissertation
Full Text:: DISSERTATION OF Ann Elizabeth Morey Ross for the degree of Doctor of Philosophy in Ocean, Earth and

Heat Flow from a Vapor-Dominated Sublacustrine Vent Field Beneath Yellowstone Lake

Creator:: Favorito, Julia E.
Abstract:: Portions of Yellowstone Lake sit on top of a vigorous but not well understood hydrothermal system situated in a region of intense geologic and environmental forcings. A heat flow study conducted over the Stevenson Island Vent Field (SIVF), a vent field at the bottom of Yellowstone Lake underlain by an...
Resource Type:: Masters Thesis
Full Text:: OF THE THESIS OF Julia E. Favorito for the degree of Master of Science in Ocean, Earth, and

Interactions amongst Local and Global Drivers of Coastal Acidification in Estuarine Habitats of the Northern California Current

Creator:: Pacella, Stephen R.
Abstract:: The variability of coastal carbonate chemistry continues to provide significant hurdles for understanding interactions between anthropogenic and natural CO2 cycling and resultant effects on coastal acidification dynamics. Attribution of the anthropogenic component is vital for identifying the impacts of increasing atmospheric carbon on coastal habitats such as coral reefs, upwelling...
Resource Type:: Dissertation
Full Text:: . Pacella for the degree of Doctor of Philosophy in Ocean, Earth, and Atmospheric Sciences presented on

Evaluating Drivers of Iron Cycling in Oregon Continental Margin Sediments Using an Early Diagenetic Model

Creator:: Chan, Adrienne B.
Abstract:: Continental margin sediments have been recognized as a major source of dissolved iron to the global ocean. The focus of this study was to build an early diagenetic model that can be used to simulate iron fluxes from continental margins and thereby identify key controlling factors. The model uses the...
Resource Type:: Masters Thesis
Full Text:: B. Chan for the degree of Master of Science in Ocean, Earth, and Atmospheric Sciences presented on

Modeling Forest Response to Changing Climate Conditions in Western North America

Creator:: Hawkins, Linnia R.
Abstract:: Forests play an integral role in the global carbon cycle, regulating the atmospheric CO₂ concentration by sequestering nearly one third of anthropogenic carbon emissions and storing carbon for centuries. Forest ecosystems are integrated into the culture, ecology, and economy of western North America, supporting wildlife habitat, local economies, recreation, and...
Resource Type:: Dissertation
Full Text:: for the degree of Doctor of Philosophy in Ocean, Earth, and Atmospheric Sciences presented on May 13

High-resolution Carbonate Dynamics of Netarts Bay, OR from 2014 - 2019

Creator:: Fairchild, William M.
Abstract:: Netarts Bay is a shallow, temperate, tidal lagoon located on the northern coast of Oregon and site of the Whiskey Creek Shellfish Hatchery (WCSH). Data collected with an automated flow-through system installed at WCSH capable of high-resolution (1 Hz) pCO2 and hourly TCO2 measurements, with measurement uncertainties of <2.0% and...
Resource Type:: Masters Thesis
Full Text:: ABSTRACT OF THE THESIS OF William Fairchild for the degree of Master of Science in Ocean, Earth, and

Evaporation processes in marine boundary layer downdrafts inferred from stable water vapor isotopes

Creator:: Quiñones Meléndez, Estefanía
Abstract:: The RV Ronald H. Brown traveled a section of tropical Atlantic waters northeast of Barbados during January-February 2020 in an international collaboration effort known as Elucidating the Role of Clouds Circulation Coupling in Climate Campaign (EUREC4A). ATOMIC (Atlantic Trade-wind Ocean–Atmosphere Mesoscale Interaction Campaign) was the US contribution to EUREC4A focused...
Resource Type:: Dissertation
Full Text:: Estefanía Quiñones Meléndez for the degree of Doctor of Philosophy in Ocean, Earth and Atmospheric Sciences

Vertical Coastal Trapped Wave Propagation Produced by a Subsurface Ridge

Creator:: Dhage, Laxmikant
Abstract:: The vertical propagation of Coastal Trapped Waves (CTWs) due to subsurface ridges is explored with the help of linear numerical and analytical models. Results show that submerged ridges projecting from the shoreline can scatter a horizontally propagating single baroclinic mode Kelvin wave into both upward and downward propagating Kelvin wave...
Resource Type:: Dissertation
Full Text:: the degree of Doctor of Philosophy in Ocean, Earth and Atmospheric Sciences presented on December 17

Visualization in environmental science

Creator:: Winters, Kirsten M.
Abstract:: The VISualization of Terrestrial and Aquatic Systems (VISTAS) software development project began with the proposition that visualization would increase the ability of scientists to explore and communicate their data, especially complex datasets that span multiple spatial and temporal scales. A case study of VISTAS articulates how and why scientists intend...
Resource Type:: Dissertation
Full Text:: the National Science Foundation (NSF BIO/DBI 1062572) for funding the VISTAS project and the social

The effect of diagenesis and fluid migration on rare earth element distribution in pore fluids of the northern Cascadia accretionary margin

Creator:: Kim, Ji-Hoon, Torres, Marta E., Haley, Brian A., Kastner, Miriam, Pohlman, John W., Riedel, Michael, and Lee, Young-Joo
Abstract:: Analytical challenges in obtaining high quality measurements of rare earth elements (REEs) from small pore fluid volumes have limited the application of REEs as deep fluid geochemical tracers. Using a recently developed analytical technique, we analyzed REEs from pore fluids collected from Sites U1325 and U1329, drilled on the northern...
Resource Type:: Article
Full Text:: and fluid migration on rare earth element distribution in pore fluids of the northern Cascadia

Comparative Composition, Diversity and Trophic Ecology of Sediment Macrofauna at Vents, Seeps and Organic Falls

Creator:: Bernardino, Angelo F., Levin, Lisa A., Thurber, Andrew R., and Smith, Craig R.
Abstract:: Sediments associated with hydrothermal venting, methane seepage and large organic falls such as whale, wood and plant detritus create deep-sea networks of soft-sediment habitats fueled, at least in part, by the oxidation of reduced chemicals. Biological studies at deep-sea vents, seeps and organic falls have looked at macrofaunal taxa, but...
Resource Type:: Article
Full Text:: Department of Oceanography, School of Ocean and Earth Science and Abstract: Sediments associated with

Up-estuary extent and lithologic characteristics of tsunami deposits attributed to the 1700 Cascadia earthquake within Alsea Bay, OR

Creator:: Spruell, John T.
Abstract:: Cascadia’s 1700 earthquake generated a tsunami and widespread subsidence along Pacific Northwest coastline. The tsunami deposited sandy sediments in many Oregon coastal estuaries, such as Alsea Bay. Although the recurrence of subduction-generated megathrust earthquakes and tsunami events in this region are recorded in the stratigraphy, knowledge of the full inland...
Resource Type:: Undergraduate Thesis
Full Text:: turbidites. Annual Review of Earth and Planetary Sciences, 31, 555-578. Google Maps. (2018). Alsea Bay

Storage Battery Chemistries with Earth Abundant Charge Carriers

Creator:: Hong, Jessica Junghwa
Abstract:: The demand for the development of sustainable energy is an all time high as we burn through limited fossil fuel reserves and as environmental concerns rise every year. Renewable energy sources such as wind and solar power have limitations due to inconsistent power supply that cannot meet the regular needs...
Resource Type:: Dissertation
Full Text:: preserve the earth and prevent creating pollution while doing so. It is not only the interest of the US

1986/1987 Annual Report

Creator:: Hatfield Marine Science Center
Abstract:: Report year ends June 30.
Resource Type:: Other
Full Text:: management science. We had proposed a wider based program in aquaculture and marine related sciences but this

1995/1996 Annual Report

Creator:: Hatfield Marine Science Center
Abstract:: Report year ends June 30
Resource Type:: Other
Full Text:: Extension Sea Grant Oregon Pacific Area Health Education Cente Earth and Sea Investigators' Program

1994/1995 Annual Report

Creator:: Hatfield Marine Science Center
Abstract:: Report year ends June 30
Resource Type:: Other
Full Text:: Oregon Marine Experiment Station Earth and Sea Investigators' Program Coastal Oregon Productivity

2011/2012 Annual Report

Creator:: Hatfield Marine Science Center
Abstract:: Report year ends June 30.
Resource Type:: Other
Full Text:: Department of Science and Math Education 20 Department of Zoology 22 Benthic Ecology 22 Marine Ecology 22

Attitudes of secondary school science and non-science teachers toward certain science related societal issues

Creator:: Barnhart, Richard Burton
Resource Type:: Dissertation
Full Text:: Attitudes of secondary school science and non-science

2002/2003 Annual Report

Creator:: Hatfield Marine Science Center
Abstract:: Report year ends June 30.
Resource Type:: Other
Full Text:: Science...20 College of Veterinary Medicine...23 13: Co-Located State and Federal Agencies Environmental

2009/2010 Annual Report

Creator:: Hatfield Marine Science Center
Abstract:: Report year ends June 30
Resource Type:: Other
Full Text:: 17 College of Science 17 Department of Botany and Plant Pathology 17 IV. PUBLIC OUTREACH AND

1999/2000 Annual Report

Creator:: Hatfield Marine Science Center
Abstract:: Report year ends June 30.
Resource Type:: Other
Full Text:: and Wildlife. . .20 National Marine Fisheries Service, Alaska Fisheries Science Center. . .21 National

In search of belongingness : perceptions, expectations, and values congruence within sorority new members

Creator:: Clegg, Karen S.
Abstract:: This study addresses perceptions, expectations, and values of women who espoused interest in joining National Panhellenic Conference sorority organizations, and the congruence of their beliefs with their first term membership experiences. The sources that informed women's expectations were also explored. Eight participants were selected from the potential new member pool...
Resource Type:: Masters Thesis
Full Text:: was about much more than weekly social events, fraternity parties, and letter sweatshirts. If this

Recruitment, Growth and Mortality of an Antarctic Hexactinellid Sponge, Anoxycalyx joubini

Creator:: Dayton, Paul K., Kim, Stacy, Jarrell, Shannon C., Oliver, John S., Hammerstrom, Kamille, Fisher, Jennifer L., O'Connor, Kevin, Barber, Julie S., Robilliard, Gordon, Barry, James, Thurber, Andrew R., and Conlan, Kathy
Abstract:: Polar ecosystems are sensitive to climate forcing, and we often lack baselines to evaluate changes. Here we report a nearly 50-year study in which a sudden shift in the population dynamics of an ecologically important, structure-forming hexactinellid sponge, Anoxycalyx joubini was observed. This is the largest Antarctic sponge, with individuals...
Resource Type:: Article
Full Text:: Landing, California, United States of America, 7 College of Earth, Ocean, and Atmospheric Sciences

Professional Development Training in Ocean Acidification: A Case Study of Marine Resource Managers

Creator:: Moses, Michael L.
Abstract:: Ocean acidification (OA) is the result of increasing concentrations of anthropogenic carbon dioxide (CO₂) emissions, leading to a suite of alterations to specific parameters of ocean chemistry, which can negatively impact many marine organisms and ecosystems. Understanding how to measure and monitor the chemistry of OA will require specialized education...
Resource Type:: Masters Thesis
Full Text:: Professor, representing Marine Resource Management Dean of the College of Earth, Ocean, and

Conceptions of the nature of science and worldviews of preservice elementary science teachers in Taiwan

Creator:: Liu, Shiang-Yao
Abstract:: This exploratory investigation aimed to identify preservice science teachers' conceptions of the nature of science (NOS), and worldviews that represent their culturally dependent beliefs about the world, in the context of Taiwan. The interrelationships between the responses elicited from both the assessments of NOS understandings and worldviews were examined. Participants...
Resource Type:: Dissertation
Full Text:: the Nature of Science and Worldviews of Preservice Elementary Science Teachers in Taiwan Abstract

Cold Seep Epifaunal Communities on the Hikurangi Margin, New Zealand: Composition, Succession, and Vulnerability to Human Activities

Creator:: Bowden, David A., Rowden, Ashley A., Thurber, Andrew R., Baco, Amy R., Levin, Lisa A., and Smith, Craig R.
Abstract:: Cold seep communities with distinctive chemoautotrophic fauna occur where hydrocarbon-rich fluids escape from the seabed. We describe community composition, population densities, spatial extent, and within-region variability of epifaunal communities at methane-rich cold seep sites on the Hikurangi Margin, New Zealand. Using data from towed camera transects, we match observations to...
Resource Type:: Article
Full Text:: of America, 5 Department of Oceanography, School of Ocean and Earth Science and Technology

Partnerships between secondary/elementary science teachers and laboratory-based scientists : delineating best practices

Creator:: Henderson, Sandra
Abstract:: Given the high probability of national and federal research laboratories continuing to sponsor science education partnerships between their staff and classroom science teachers and the dearth of research in this area, this study set out to delineate best practices associated with such partnerships for the purpose of increasing the effectiveness...
Resource Type:: Dissertation
Full Text:: Secondary/Elementary Science Teachers and Laboratory-Based Scientists: Delineating Best Practices Abstract

Macroalgae Decrease Growth and Alter Microbial Community Structure of the Reef-Building Coral, Porites astreoides

Creator:: Thurber, Rebecca Vega, Burkepile, Deron E., Correa, Adrienne M. S., Thurber, Andrew R., Shantz, Andrew A., Welsh, Rory, Pritchard, Catharine, and Rosales, Stephanie
Abstract:: With the continued and unprecedented decline of coral reefs worldwide, evaluating the factors that contribute to coral demise is of critical importance. As coral cover declines, macroalgae are becoming more common on tropical reefs. Interactions between these macroalgae and corals may alter the coral microbiome, which is thought to play...
Resource Type:: Article
Full Text:: Abdullah University of Science and Technology, Saudi Arabia Received April 16, 2012; Accepted July 31

Cupric Oxide (CuO) Oxidation Detects Pyrogenic Carbon in Burnt Organic Matter and Soils

Creator:: Hatten, Jeff and Goñi, Miguel
Abstract:: Wildfire greatly impacts the composition and quantity of organic carbon stocks within watersheds. Most methods used to measure the contributions of fire altered organic carbon–i.e. pyrogenic organic carbon (Py-OC) in natural samples are designed to quantify specific fractions such as black carbon or polyaromatic hydrocarbons. In contrast, the CuO oxidation...
Resource Type:: Article
Full Text:: Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, Oregon, United States of

The flow mechanics and resulting erosional and depositional features of explosive volcanic density currents on earth and Mars

Creator:: Reimers, Clare E.
Abstract:: Straight, radial, erosional channels and fan-like deposits of tephra develop around steep-sided cones and composite volcanoes, but are not characteristic features of shield volcanoes. The channels and deposits normally are formed by explosive volcanic density currents which originate as nuées adrentes or base surges. The physical processes of explosive volcanic...
Resource Type:: Masters Thesis
Full Text:: committee, and Karl.R. Blasius of the Planetary Science Institute, Pasadena, California, who offered many

Putting Food on the Map: Automated Mapping of Community Gardens with High Resolution Aerial Imagery using an Object Based Approach in Google Earth Engine

Creator:: Mazur, Elise S.
Abstract:: Urban agriculture (UA), or growing and producing food within urban areas, is rising in popularity across the United States. There are social and environmental benefits from growing food within urban neighborhoods. UA presents the opportunity for food security in neighborhoods that do not have access to safe and healthy foods,...
Resource Type:: Masters Thesis
Full Text:: : Major Professor, representing Geography Dean of the College of Earth, Ocean, and Atmospheric Sciences

⁴⁰Ar/³⁹Ar Dating of Umpqua Group Sediments within the Oregon Coast Range: Implications for Provenance

Creator:: Acito, Sydney K.
Abstract:: New detrital mica ages from the Umpqua Group of the Oregon Coast Range provide constraints on models of Eocene sedimentation. Based on sandstone petrography, previous studies assert that the Klamath Mountains to the south are the most likely source region for Umpqua Group sedimentary provenance. However, the presence of Late...
Resource Type:: Honors College Thesis
Full Text:: Baccalaureate of Science in Earth Sciences (Honors Associate) Presented May 18, 2022 Commencement

Volcanic Eruptions in the Deep Sea

Creator:: Rubin, Kenneth H., Soule, S. Adam, Chadwick, William W., Jr., Fornari, Daniel J., Clague, David A., Embley, Robert W., Baker, Edward T., Perfit, Michael R., Caress, David W., and Dziak, Robert P.
Abstract:: Volcanic eruptions are important events in Earth’s cycle of magma generation and crustal construction. Over durations of hours to years, eruptions produce new deposits of lava and/or fragmentary ejecta, transfer heat and magmatic volatiles from Earth’s interior to the overlying air or seawater, and significantly modify the landscape and perturb...
Resource Type:: Article
Full Text:: . Perfit, D.W. Caress, and R.P. Dziak. 2012. Volcanic eruptions in the deep sea. Oceanography 25(1):142

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