Index Catalog // ScholarsArchive@OSU

Tidally Forced Internal Waves and Overturns Observed on a Slope: Results from HOME

Creator:: Levine, Murray D. and Boyd, Timothy John, 1958-2013
Abstract:: Tidal mixing over a slope was explored using moored time series observations on Kaena Ridge extending northwest from Oahu, Hawaii, during the Survey component of the Hawaii Ocean Mixing Experiment (HOME). A mooring was instrumented to sample the velocity and density field of the lower 500 m of the water...
Resource Type:: Article
Full Text:: : Results from HOME MURRAY D. LEVINE AND TIMOTHY J. BOYD College of Oceanic and Atmospheric Sciences

A modified law-of-the-wall applied to oceanic bottom boundary layers

Creator:: Perlin, A., Moum, James N., Klymak, J. M., Levine, Murray D., Boyd, Timothy John, 1958-2013, and Kosro, P. Michael
Abstract:: Near the bottom, the velocity profile in the bottom boundary layer over the continental shelf exhibits a characteristic law-of-the-wall that is consistent with local estimates of friction velocity from near-bottom turbulence measurements. Farther from the bottom, the velocity profile exhibits a deviation from the law-of-the-wall. Here the velocity gradient continues...
Resource Type:: Article
Full Text:: bottom boundary layers A. Perlin, J. N. Moum, J. M. Klymak,1 M. D. Levine, T. Boyd, and P. M. Kosro

Incoherent Nature of M2 Internal Tides at the Hawaiian Ridge

Creator:: Zilberman, N. V., Merrifield, M. A., Carter, G. S., Luther, D. S., Levine, M. D., and Boyd, Timothy John, 1958-2013
Abstract:: Moored current, temperature, and conductivity measurements are used to study the temporal variability of M-2 internal tide generation above the Kaena Ridge, between the Hawaiian islands of Oahu and Kauai. The energy conversion from the barotropic to baroclinic tide measured near the ridge crest varies by a factor of 2...
Resource Type:: Article
Full Text:: Hawaii at Manoa, Honolulu, Hawaii M. D. LEVINE Oregon State University, Corvallis, Oregon T. J. BOYD

Convectively Driven Mixing in the Bottom Boundary Layer

Creator:: Moum, J. N., Perlin, A., Klymak, J. M., Levine, M. D., Boyd, Timothy John, 1958-2013, and Kosro, P. M.
Abstract:: Closely spaced vertical profiles through the bottom boundary layer over a sloping continental shelf during relaxation from coastal upwelling reveal structure that is consistent with convectively driven mixing. Parcels of fluid were observed adjacent to the bottom that were warm (by several millikelvin) relative to fluid immediately above. On average,...
Resource Type:: Article
Full Text:: . PERLIN, J. M. KLYMAK, M. D. LEVINE, T. BOYD, AND P. M. KOSRO College of Oceanic and Atmospheric Sciences

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

Atmospheric forcing of the Oregon coastal ocean during the 2001 upwelling season

Creator:: Bane, John M., Levine, Murray D., Samelson, Roger M., Haines, S. M., Meaux, M. F., Perlin, Natalie, Kosro, P. Michael, and Boyd, Timothy John, 1958-2013
Abstract:: Meteorological conditions during an intensive oceanographic observational program in May through August 2001 along the central Oregon coast are described and related to larger-scale and longer-term conditions. Southward wind stresses of 0.05-0.1 N m⁻² occurred roughly 75% of the time, with a sustained period of dominantly southward stress from mid-June...
Resource Type:: Article
Full Text:: . Samelson, S. M. Haines, M. F. Meaux, N. Perlin, P. M. Kosro, and T. Boyd (2005), Atmospheric forcing of

Energetics of M₂ Barotropic-to-Baroclinic Tidal Conversion at the Hawaiian Islands

Creator:: Carter, G. S., Merrifield, M. A., Becker, J. M., Katsumata, K., Gregg, M. C., Luther, D. S., Levine, M. D., Boyd, Timothy John, 1958-2013, and Firing, Y. L.
Abstract:: A high-resolution primitive equation model simulation is used to form an energy budget for the principal semidiurnal tide (M₂) over a region of the Hawaiian Ridge from Niihau to Maui. This region includes the Kaena Ridge, one of the three main internal tide generation sites along the Hawaiian Ridge and...
Resource Type:: Article
Full Text:: . LUTHER,* M. D. LEVINE,& T. J. BOYD,** AND Y. L. FIRING�� *Department of Oceanography, University of

An Analysis Platform for Multiscale Hydrogeologic Modeling with Emphasis on Hybrid Multiscale Methods

Creator:: Scheibe, Timothy D., Murphy, Ellyn M., Chen, Xingyuan, Rice, Amy K., Carroll, Kenneth C., Palmer, Bruce J., Tartakovsky, Alexandre M., Battiato, Ilenia, and Wood, Brian D.
Abstract:: One of the most significant challenges faced by hydrogeologic modelers is the disparity between the spatial and temporal scales at which fundamental flow, transport, and reaction processes can best be understood and quantified (e.g., microscopic to pore scales and seconds to days) and at which practical model predictions are needed...
Resource Type:: Article
Full Text:: Multiscale Methods. Groundwater, 53(1), 38-56. doi:10.1111/gwat.12179 10.1111/gwat.12179 John Wiley & Sons

Genome sequencing provides insight into the reproductive biology, nutritional mode and ploidy of the fern pathogen Mixia osmundae

Creator:: Toome, Merje, Ohm, Robin A., Riley, Robert W., James, Timothy Y., Lazarus, Katherine L., Henrissat, Bernard, Albu, Sebastian, Boyd, Alexander, Chow, Julianna, Clum, Alicia, Heller, Gregory, Lipzen, Anna, Nolan, Matt, Sandor, Laura, Zvenigorodsky, Natasha, Grigoriev, Igor V., Spatafora, Joseph W., and Aime, M. Catherine
Abstract:: Mixia osmundae (Basidiomycota, Pucciniomycotina) represents a monotypic class containing an unusual fern pathogen with incompletely understood biology. We sequenced and analyzed the genome of M. osmundae, focusing on genes that may provide some insight into its mode of pathogenicity and reproductive biology. Mixia osmundae has the smallest plant pathogenic basidiomycete...
Resource Type:: Article

Diurnal timing of warmer air under climate change affects magnitude, timing and duration of stream temperature change

Creator:: Diabat, Mousa, Haggerty, Roy, and Wondzell, Steven M.
Abstract:: Stream temperature will be subject to changes because of atmospheric warming in the future. We investigated the effects of the diurnal timing of air temperature changes – daytime warming versus nighttime warming – on stream temperature. Using the physically based model, Heat Source, we performed a sensitivity analysis of summer...
Resource Type:: Article
Full Text:: . Process. 27, 2367–2378 (2013) Published online 15 October 2012 in Wiley Online Library

ScholarsArchive@OSU

Tidally Forced Internal Waves and Overturns Observed on a Slope: Results from HOME

A modified law-of-the-wall applied to oceanic bottom boundary layers

Incoherent Nature of M2 Internal Tides at the Hawaiian Ridge

Convectively Driven Mixing in the Bottom Boundary Layer

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

Atmospheric forcing of the Oregon coastal ocean during the 2001 upwelling season

Energetics of M₂ Barotropic-to-Baroclinic Tidal Conversion at the Hawaiian Islands

An Analysis Platform for Multiscale Hydrogeologic Modeling with Emphasis on Hybrid Multiscale Methods

Genome sequencing provides insight into the reproductive biology, nutritional mode and ploidy of the fern pathogen Mixia osmundae

Diurnal timing of warmer air under climate change affects magnitude, timing and duration of stream temperature change

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