Index Catalog // ScholarsArchive@OSU

Crustal fissuring on the crest of the southern East Pacific Rise at 17°15′–40′S

Creator:: Wright, Dawn J., Haymon, Rachel M., White, Scott M., and Macdonald, Ken C.
Abstract:: Fissure densities and widths have been mapped along the axial zone of the superfast spreading southern East Pacific Rise (EPR) at 17°15′–40′S with the near-bottom DSL-120 and Argo II imaging systems. We observe that the youngest lava flows (on a relative age scale) are sparsely fissured and that there is...
Resource Type:: Article
Full Text:: , Corvallis, Oregon, USA Rachel M. Haymon, Scott M. White,1 and Ken C. Macdonald Department of Geological

Simulation of turbulent exchange processes in summertime leads

Creator:: Skyllingstad, Eric D., Paulson, Clayton A., and Pegau, W. Scott
Abstract:: Ice-ocean heat exchange in polar leads was examined using a large-eddy simulation model coupled to a slab ice model. Simulations were performed using an idealized square domain for a range of lead sizes, surface wind stress (0.05–0.1 N/m²), and lead temperature/salinity profiles. Particular emphasis was placed on understanding the role...
Resource Type:: Article
Full Text:: , Oregon State University, Corvallis, Oregon, USA W. Scott Pegau Kachemak Bay Research Reserve, Homer

Toward closure of the inherent optical properties of natural waters

Creator:: Pegau, W. Scott, Zaneveld, J. Ronald, and Voss, Kenneth J.
Abstract:: A fundamental relationship of inherent optical properties (IOP) is that the beam attenuation coefficient is the sum of the volume absorption and scattering coefficients (c = a + b). A relative calibration of a set of instruments can be provided using this IOP closure equation. Measurement of the true beam...
Resource Type:: Article
Full Text:: closure of the inherent optical properties of natural waters W. Scott Pegau and J. Ronald V. Zaneveld

Effects of keels on ice bottom turbulence exchange

Creator:: Skyllingstad, Eric D., Paulson, Clayton A., Pegau, W. Scott, McPhee, Miles G., and Stanton, Timothy
Abstract:: The effects of ice keels on the upper ocean are examined using a combination of turbulence measurements and output from a large-eddy simulation (LES) model. Two cases are examined, one during the winter when the under-ice boundary layer is relatively deep (~20 m) and near the freezing point and a...
Resource Type:: Article
Full Text:: Eric D. Skyllingstad, Clayton A. Paulson, and W. Scott Pegau College of Oceanic and Atmospheric

Calcium carbonate saturation states in the waters of the Canadian Arctic Archipelago and the Labrador Sea

Creator:: Azetsu-Scott, Kumiko, Clarke, Allyn, Falkner, Kelly, Hamilton, James, Jones, E. Peter, Lee, Craig, Petrie, Biran, Prinsenberg, Simon, Starr, Michel, and Yeats, Philip
Abstract:: Ocean acidification is predicted to occur first in polar oceans. We investigated the saturation state of waters with respect to calcite (Wcal) and aragonite (Warg) in six sections along an Arctic outflow pathway through the Canadian Arctic Archipelago (CAA) and into the northwestern Atlantic using dissolved inorganic carbon and total...
Resource Type:: Article
Full Text:: ‐Scott, K., A. Clarke, K. Falkner, J. Hamilton, E. P. Jones, C. Lee, B. Petrie, S. Prinsenberg, M. Starr

A comparison of methods for the measurement of the absorption coefficient in natural waters

Creator:: Pegau, W. Scott, Cleveland, Joan S., Doss, W., Kennedy, C. Dan, Maffione, Robert A., Mueller, James L., Stone, R., Trees, Charles C., Weidermann, Alan D., Wells, Willard H., and Zaneveld, J. Ronald
Abstract:: In the spring of 1992 an optical closure experiment was conducted at Lake Pend Oreille, Idaho. A primary objective of the experiment was to compare techniques for the measurement of the spectral absorption coefficient and other inherent optical properties of natural waters. Daily averages of absorption coefficients measured using six...
Resource Type:: Article
Full Text:: waters W. Scott Pegau, • Joan S. Cleveland, 2 W. Doss, 3 C. Dan Kennedy, 4 Robert A. Maffione,5 James

Distant effect of assimilation of moored currents into a model of coastal wind-driven circulation off Oregon

Creator:: Kurapov, Alexander, Allen, John S., Egbert, Gary D., Miller, Robert N., Kosro, P. Michael, Levine, Murray D., and Boyd, Timothy John, 1958-2013
Abstract:: An optimal interpolation (OI) sequential algorithm is implemented for a three-dimensional primitive equation model to assimilate current measurements from acoustic Doppler profilers moored on the Oregon shelf as a part of the Coastal Ocean Advances in Shelf Transport (COAST) upwelling experiment (May–August 2001). A stationary estimate of the forecast error...
Resource Type:: Article
Full Text:: . Egbert, R. N. Miller, P. M. Kosro, M. Levine, and T. Boyd College of Oceanic and Atmospheric Sciences

Convective distribution of tropospheric ozone and tracers in the Central American ITCZ region: Evidence from observations during TC4

Creator:: Avery, Melody, Twohy, Cynthia, McCabe, David, Joiner, Joanna, Severance, Kurt, Atlas, Eliot, Blake, Donald, Bui, T. P., Crounse, John, Dibb, Jack, Diskin, Glenn, Lawson, Paul, McGill, Matthew, Rogers, David, Sachse, Glen, Scheuer, Eric, Thompson, Anne M., Trepte, Charles, Wennberg, Paul, and Ziemke, Jerald
Abstract:: During the Tropical Composition, Clouds and Climate Coupling (TC4) experiment that occurred in July and August of 2007, extensive sampling of active convection in the ITCZ region near Central America was performed from multiple aircraft and satellite sensors. As part of a sampling strategy designed to study cloud processes, the...
Resource Type:: Article
Full Text:: Twohy,2 David McCabe,3 Joanna Joiner,4 Kurt Severance,5 Eliot Atlas,6 Donald Blake,7 T. P. Bui,8 John

Origin of the Medusae Fossae Formation, Mars: Insights from a synoptic approach

Creator:: Mandt, Kathleen E., de Silva, Shanaka L., Zimbelman, James R., and Crown, David A.
Abstract:: The geologic origin of the Medusae Fossae Formation (MFF) has remained a mystery despite three decades of research. To better constrain its formation, an in-depth analysis of observations made in the literature was combined with a new survey of over 700 Mars Orbiter Camera narrow-angle images of the MFF to...
Resource Type:: Article
Full Text:: as the Hesperian Period [Scott and Tanaka, 1986; Greeley and Guest, 1987; Tanaka, 2000; Head and

Uncertainties in, and interpretation of, carbon flux estimates using the eddy covariance technique

Creator:: Loescher, H. W., Law, B. E., Mahrt, Larry, Hollinger, D. Y., Campbell, J., and Wofsy, S. C.
Abstract:: Whole ecosystem carbon dioxide (CO₂) exchange estimated with the eddy covariance (EC) technique has been central to studies on the responses of terrestrial ecosystems to disturbance and intra‐annual and interannual variations in climate, but challenges exist in understanding and reducing the uncertainty in estimates of net ecosystem exchange (NEE) of...
Resource Type:: Article

ScholarsArchive@OSU

Crustal fissuring on the crest of the southern East Pacific Rise at 17°15′–40′S

Simulation of turbulent exchange processes in summertime leads

Toward closure of the inherent optical properties of natural waters

Effects of keels on ice bottom turbulence exchange

Calcium carbonate saturation states in the waters of the Canadian Arctic Archipelago and the Labrador Sea

A comparison of methods for the measurement of the absorption coefficient in natural waters

Distant effect of assimilation of moored currents into a model of coastal wind-driven circulation off Oregon

Convective distribution of tropospheric ozone and tracers in the Central American ITCZ region: Evidence from observations during TC4

Origin of the Medusae Fossae Formation, Mars: Insights from a synoptic approach

Uncertainties in, and interpretation of, carbon flux estimates using the eddy covariance technique

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