Index Catalog // ScholarsArchive@OSU

Physical-biological interactions in the Southern Ocean

Creator:: Moore, Jefferson Keith
Abstract:: Physical-biological interactions in the Southern Ocean were investigated using remote sensing data from several different satellite sensors. Satellite sea surface temperature data were used to study the dynamics of the Antarctic Polar Front (PF). Satellite ocean color data were used to estimate surface chlorophyll concentrations and their relation to various...
Resource Type:: Dissertation
Full Text:: phytoplankton biomass seen at the Antarctic coast and near Southern Ocean islands. Interactions between ocean

Spatial structure of the physical and biological distributions across the Antarctic Polar Front in austral spring and summer

Creator:: Howard, Cidney
Abstract:: Mesoscale surveys to examine the relationship between the physical processes and biological response along the Antarctic Polar Front (PF) were conducted as part of the US JGOFS Southern Ocean Program during austral spring and summer 1997/98. Multiple crossings of the PF near 170° W, using a towed undulating instrument, provided...
Resource Type:: Masters Thesis
Full Text:: INTRODUCTION TO PHYSICAL AND BIOLOGICAL CONTROLS OF PHYTOPLANKTON IN THE SOUTHERN OCEAN Cidney Howard 2

Cenozoic biogenic silica sedimentation in the Antarctic Ocean, based on two deep sea drilling project sites

Creator:: Brewster, Nancy Ann
Abstract:: The Antarctic Ocean during the Cenozoic experienced four periods of increased surface productivity: the Middle Eocene; the beginning of the Miocene; the Middle Miocene; and near the Miocene-Pliocene boundary. The fourth increase in productivity began five million years ago and has since progressively increased to the present level of intense...
Resource Type:: Masters Thesis

Physical and chemical factors controlling the distribution of the major phytoplankton classes at the Antarctic Polar Front, 170 °W

Creator:: Mengelt, Claudia
Abstract:: This study was part of the Antarctic Environment and Southern Ocean Study (AESOPS) program, whose main goal was to investigate the role of the biota in the carbon flux from the atmosphere to the interior of the ocean. We quantified the abundance of the major phytoplankton classes and examined the...
Resource Type:: Masters Thesis
Full Text:: was part of the Antarctic Environment and Southern Ocean Study (AESOPS) program, whose main goal was

Three-dimensional gravity analysis of the Pacific-Antarctic east Pacific rise at 36.5°S, 49.8°S and 54.2°S

Creator:: Enriquez, Kelly D.
Abstract:: Three-dimensional gravity analysis is the process of removing the predictable components from the free-air gravity anomalies and has proven to be useful for interpreting the subsurface structures and active processes at mid-ocean ridges. The three-dimensional effects of the seafloor and Moho topography, assuming a constant crustal thickness and constant crust...
Resource Type:: Masters Thesis
Full Text:: the Pacific-Antarctic East Pacific Rise at 36.5°S. 49.8°S and 54.2°S Abstract approved: Three

Impact of tropical instability waves on nutrient and chlorophyll distributions in the equatorial Pacific

Creator:: Evans, William Wiley
Abstract:: Tropical instability waves (TIWs) are prominent seasonal features in both the equatorial Pacific and Atlantic Oceans. This work quantifies their role in modulating the distributions of nutrients and phytoplankton biomass. Using an eight year record of biannual ship observations along the Tropical Atmosphere Ocean (TAO) buoy array, cruise sections crossing...
Resource Type:: Masters Thesis
Full Text:: nutrients and phytoplankton biomass. Using an eight year record of biannual ship observations along the

Primary productivity in the southeast Pacific Ocean : effects of enhanced ultraviolet-B radiation

Creator:: Behrenfeld, Mike J.
Abstract:: Anthropogenic releases of trace gases into the atmosphere are causing a decrease in stratospheric ozone concentrations and a subsequent increase in solar ultraviolet-B (UV-B)(280-320 nm) radiation reaching the earth's surface. The objective of this study was to determine the acute effects of enhanced UV-B radiation on the primary production of...
Resource Type:: Masters Thesis
Full Text:: can reduce photosynthesis in marine phytoplankton (Paerl et al. 1985; Lorenzen 1979). A decrease in

Satellite observations of the inﬂuence of mesoscale ocean eddies on near-surface temperature, phytoplankton and surface stress

Creator:: Gaube, Peter
Abstract:: The influence of mesoscale ocean eddies on near-surface ocean temperature, surface stress and phytoplankton communities is investigated by collocating numerous satellite measurements along with vertical profiles of oceanic temperature and salinity to the interiors of eddies identified and tracked in altimetric sea surface height maps. The surface currents associated with...
Resource Type:: Dissertation
Full Text:: Observations of the Influence of Mesoscale Ocean Eddies on Near-Surface Temperature, Phytoplankton and Surface

Phytoplankton shading of marine benthic macrophytes: Implications for intertidal community structure

Creator:: Kavanaugh, Maria T.
Abstract:: Previous observations of light levels and phytoplankton abundances along the Oregon coast demonstrated that phytoplankton attenuated light sufficiently to potentially limit the growth of intertidal macrophytes and therefore structure local intertidal communities. Inspired by this observation, in spring 2004, I initiated a study to quantify the direct and indirect benthic...
Resource Type:: Masters Thesis
Full Text:: presented On 30 September 2005 Title: Phytoplankton Shading of Marine Benthic Macrophytes: Implications

Dynamic seascapes : a quantitative framework for scaling pelagic ecology and biogeochemistry

Creator:: Kavanaugh, Maria T.
Abstract:: Understanding and modeling microbial responses and feedbacks to climate change is hampered by a lack of a framework in the pelagic environment by which to link local mechanism to large scale patterns. Where terrestrial ecology draws from landscape theory and practice to address issues of scale, the pelagic seascape concept...
Resource Type:: Dissertation
Full Text:: subtropics. On interannual scales, in situ phytoplankton abundance (as measured by chl-a), net primary

ScholarsArchive@OSU

Physical-biological interactions in the Southern Ocean

Spatial structure of the physical and biological distributions across the Antarctic Polar Front in austral spring and summer

Cenozoic biogenic silica sedimentation in the Antarctic Ocean, based on two deep sea drilling project sites

Physical and chemical factors controlling the distribution of the major phytoplankton classes at the Antarctic Polar Front, 170 °W

Three-dimensional gravity analysis of the Pacific-Antarctic east Pacific rise at 36.5°S, 49.8°S and 54.2°S

Impact of tropical instability waves on nutrient and chlorophyll distributions in the equatorial Pacific

Primary productivity in the southeast Pacific Ocean : effects of enhanced ultraviolet-B radiation

Satellite observations of the inﬂuence of mesoscale ocean eddies on near-surface temperature, phytoplankton and surface stress

Phytoplankton shading of marine benthic macrophytes: Implications for intertidal community structure

Dynamic seascapes : a quantitative framework for scaling pelagic ecology and biogeochemistry

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