Index Catalog // ScholarsArchive@OSU

Geochemical and helium isotopic variability within the Lau Basin

Creator:: Goddard, Charlotte Ives
Abstract:: This research incorporates geochemical and helium isotopic analyses of Lau Basin volcanic glasses, along with helium isotopic analyses of water column hydrothermal plumes to better understand the processes that control the formation and evolution of this backarc basin. Lavas newly collected from the four southernmost segments of the Valu Fa...
Resource Type:: Dissertation
Full Text:: Possible sources for helium isotopic variability and low 3He/4He in arcs and backarcs

The Responses of Slope-spawning Flatfish to Environmental Variability in the Eastern Bering Sea

Creator:: Vestfals, Cathleen D.
Abstract:: When adult spawning and juvenile settling locations of marine fishes are geographically separated, their early life history stages must rely on transport and their own behavior to move them toward suitable habitats for successful recruitment to the juvenile phase. Variations in climate may reduce the availability of spawning and juvenile...
Resource Type:: Dissertation
Full Text:: Pribilof canyons. Variability in transport and the BSC position was strongly influenced by winds, ice

Space-time scales of temperature variability in the seasonal thermocline of Lake Tahoe

Creator:: Brubaker, John Merrill
Abstract:: Thermal structure in the seasonal thermocline at Lake Tahoe was investigated through the analysis of vertical temperature profiles taken in the upper 70 m during late summer stratification. Different ranges of horizontal and temporal scales were sampled in each of three subsets of finestructure profiles: (1) a three-week sequence at...
Resource Type:: Dissertation
Full Text:: VARIABILITY IN THE SEASONAL THERMOCLINE OF LAKE TAHOE CHAPTER I. INTRODUCTION Motions and structures in

An examination of the form and variability of manganese oxide in Columbia River suspended material

Creator:: Covert, Paul Allister
Abstract:: Suspended particulate matter (SPM) in the Columbia River is a mixture of particles of several origins having varying physical and biogeochemical properties. The relative abundances of these freshwater particles changes with season and apparently also with tide. Prior investigation has quantified seasonal variation of organic material in both the Columbia...
Resource Type:: Masters Thesis
Full Text:: and Variability of Manganese Oxide in Columbia River Suspended Material. Signature redacted for

Variability in mesoscale circulation and its effects on zooplankton distribution in the Northern California Current

Creator:: Keister, Julie Eileen
Abstract:: In eastern boundary current upwelling ecosystems, mesoscale circulation features such as eddies and upwelling filaments play a prominent role in the transfer of water and the associated plankton from the productive nearshore to the oligotrophic deep sea. The relationship between mesoscale circulation, zooplankton distributions, and the across-shelf transport of coastal...
Resource Type:: Dissertation
Full Text:: Oceanography presented on February 21, 2008. Title: Variability in Mesoscale Circulation and its Effects

Modern and past climate variability in the eastern Pacific warm pool

Creator:: Benway, Heather M.
Abstract:: Westward transport of water vapor across the Panama Isthmus helps to maintain the salinity contrast between the Atlantic and Pacific Oceans, important in thermohaline circulation and global climate. Relatively low sea-surface salinities and a strong, shallow pycnocline in the eastern Pacific warm pool (EPWP) region near Central America reflect high...
Resource Type:: Dissertation
Full Text:: . Title: Modem and Past Climate Variability in the Eastern Pacific Warm Pool Abstract approved

Tidal-band and high-frequency internal variability on the central Oregon inner shelf

Creator:: Suanda, Sutara H.
Abstract:: Analogous to ocean surface waves, waves in the ocean interior also experience steepening, breaking, and dissipation as they approach the coastline. Much less is known about this internal beach. In this work, extensive moored Acoustic Doppler Current Profiler and temperature/salinity data together with optical remote sensing are combined to describe...
Resource Type:: Dissertation
Full Text:: the in- ner shelf. Temporal variability does not correspond to the spring-neap cycle and is overall

Sea-air CO₂ flux variability on the northeast Pacific continental margin

Creator:: Evans, Wiley
Abstract:: Carbon dioxide (CO₂) fluxes between the ocean and atmosphere on continental margins are difficult to diagnose because these regions experience large variability over spatial and temporal scales spanning meters to basins and hours to years, respectively. In a global sense, continental margins could represent a significant atmospheric CO₂ sink, equivalent...
Resource Type:: Dissertation
Full Text:: variability over spatial and temporal scales spanning meters to basins and hours to years, respectively. In

Differentiating freshwater contributions and their variability to the surface and halocline layers of the Arctic and subarctic seas

Creator:: Alkire, Matthew Buckley
Abstract:: Dramatic and ongoing changes pervading the Arctic and subarctic seas over recent decades have motivated this effort to track and better understand hydrographic variability using chemical tracers. Particular emphasis has been paid to differentiating freshwater contributions to upper layers: namely Pacific water, meteoric water, and sea-ice melt/formation. Data collected in...
Resource Type:: Dissertation
Full Text:: variations over time. Geochemical tracers augment understanding of variability in the formation and

Variability and tidal exchange of ecological properties in a coastal lagoon

Creator:: Lara-Lara, Ruben
Resource Type:: Masters Thesis
Full Text:: : Variability and Tidal Exchange of Ecological Properties in a Coastal Abstract approved: Lawrence F. Small

ScholarsArchive@OSU

Geochemical and helium isotopic variability within the Lau Basin

The Responses of Slope-spawning Flatfish to Environmental Variability in the Eastern Bering Sea

Space-time scales of temperature variability in the seasonal thermocline of Lake Tahoe

An examination of the form and variability of manganese oxide in Columbia River suspended material

Variability in mesoscale circulation and its effects on zooplankton distribution in the Northern California Current

Modern and past climate variability in the eastern Pacific warm pool

Tidal-band and high-frequency internal variability on the central Oregon inner shelf

Sea-air CO₂ flux variability on the northeast Pacific continental margin

Differentiating freshwater contributions and their variability to the surface and halocline layers of the Arctic and subarctic seas

Variability and tidal exchange of ecological properties in a coastal lagoon

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