Index Catalog // ScholarsArchive@OSU

Topics in ocean turbulence : thermocouples, salt fluxes, and internal hydraulics

Creator:: Nash, Jonathan D.
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Jonathan D. Nash for the

Estimating Salinity Variance Dissipation Rate from Conductivity Microstructure Measurements

Creator:: Nash, Jonathan D. and Moum, James N.
Abstract:: At the smallest length scales, conductivity measurements include a contribution from salinity fluctuations in the inertial–convective and viscous–diffusive ranges of the turbulent scalar variance spectrum. Interpreting these measurements is complicated because conductivity is a compound quantity of both temperature and salinity. Accurate estimates of the dissipation rate of salinity variance...
Resource Type:: Article
Full Text:: Microstructure Measurements JONATHAN D. NASH AND JAMES N. MOUM College of Oceanic and Atmospheric Sciences

Inner-shelf circulation off the central Oregon Coast

Creator:: Kirincich, Anthony R.
Abstract:: Inner-shelf circulation and mechanisms of across-shelf transport of water masses were examined using seven years of observations collected by the Partnership for Interdisciplinary Studies of Coastal Oceans (PISCO) program, a long-term monitoring effort along the central Oregon coast. Since 1998, moored velocity and hydrographic measurements have been obtained during the...
Resource Type:: Dissertation
Full Text:: , Ed Dever, Jonathan Nash, and Philip Watson for giving helpful suggestions and offering to read

Hotspots of deep ocean mixing on the Oregon continental slope

Creator:: Nash, Jonathan, Alford, M. H., Kunze, E., Martini, K., and Kelly, S.
Abstract:: Two deep ocean hotspots of turbulent mixing were found over the Oregon continental slope. Thorpe-scale analyses indicate time-averaged turbulent energy dissipation rates of ε > 10⁻⁷ W/kg and eddy diffusivities of Kp ~ 10⁻² m²/s at both hotspots. However, the structure of turbulence and its generation mechanism at each site...
Resource Type:: Article
Full Text:: continental slope J. D. Nash,1 M. H. Alford,2 E. Kunze,3 K. Martini,2 and S. Kelly1 Received 13 September

Structure of the Baroclinic Tide Generated at Kaena Ridge, Hawaii

Creator:: Nash, Jonathan D., Kunze, Eric, Lee, Craig M., and Sanford, Thomas B.
Abstract:: Repeat transects of full-depth density and velocity are used to quantify generation and radiation of the semidiurnal internal tide from Kaena Ridge, Hawaii. A 20-km-long transect was sampled every 3 h using expendable current profilers and the absolute velocity profiler. Phase and amplitude of the baroclinic velocity, pressure, and vertical...
Resource Type:: Article
Full Text:: JONATHAN D. NASH College of Oceanic and Atmospheric Sciences, Oregon State University, Corvallis, Oregon

Small-Scale Processes in the Coastal Ocean

Creator:: Moum, James N., Nash, Jonathan D., and Klymak, Jody M.
Abstract:: Varied observations over Oregon’s continental shelf illustrate the beauty and complexity of geophysical flows in coastal waters. Rapid, creative, and sometimes fortuitous sampling from ships and moorings has allowed detailed looks at boundary layer processes, internal waves (some extremely nonlinear), and coastal currents, including how they interact. These processes drive...
Resource Type:: Article
Full Text:: Atmospheric Sciences, Oregon State University, Corvallis, OR, USA. Jonathan D. Nash is Associate Professor

Structure and composition of a strongly stratified, tidally pulsed river plume

Creator:: Nash, Jonathan, Kilcher, Levi F., and Moum, James N.
Abstract:: The initial composition of a river plume depends on the cumulative turbulent entrainment within the estuary and how this dilutes the supplied freshwater. Here we examine the relative roles of turbulence and freshwater input using observations from the Columbia River estuary and plume during two periods with contrasting river flow....
Resource Type:: Article
Full Text:: , tidally pulsed river plume Jonathan D. Nash,1 Levi F. Kilcher,1 and James N. Moum1 Received 21 July 2008

A Coupled Model for Laplace’s Tidal Equations in a Fluid with One Horizontal Dimension and Variable Depth

Creator:: Kelly, Samuel M., Jones, Nichole L., and Nash, Jonathan D.
Abstract:: Abstract: Tide-topography interactions dominate the transfer of tidal energy from large to small scales. At present, it is poorly understood how low-mode internal tides reflect and scatter along the continental margins. Here, the coupling equations for linear tides model (CELT) are derived to determine the independent modal solutions to Laplace's...
Resource Type:: Article
Full Text:: , Crawley, Western Australia, Australia JONATHAN D. NASH College of Earth, Ocean, and Atmospheric

NashJonathanCEOASStructureVariabilityInternal.pdf

Creator:: Pickering, Andy, Alford, Matthew, Nash, Jonathan, Lim, Byungho, and et al.
Abstract:: The Luzon Strait is the generation region for strong internal tides that radiate westward into the South China Sea and eastward into the western Pacific. Intrusions of the Kuroshio and strong mesoscale variability in the Luzon Strait can influence their generation and propagation. Here, the authors use eight moorings and...
Full Text:: ,## MATTHEW ALFORD,1,#,@@ JONATHAN NASH,@ LUC RAINVILLE,& MAARTEN BUIJSMAN,** DONG SHAN KO,11 AND BYUNGHO LIM

A Thermocouple Probe for High-Speed Temperature Measurement in the Ocean

Creator:: Nash, Jonathan D., Caldwell, Douglas R., Zelman, Michael J., and Moum, James N.
Abstract:: A fast-response chromel–constantan thermocouple sensor was constructed for use on the microstructure profiler Chameleon and used for 60 ocean profiles off the coast of Oregon. The stability of the thermocouple was compared to that of an FP07 microbead thermistor, and its frequency response was compared to a high-resolution microconductivity probe....
Resource Type:: Article
Full Text:: Thermocouple Probe for High-Speed Temperature Measurement in the Ocean JONATHAN D. NASH, DOUGLAS R. CALDWELL

ScholarsArchive@OSU

Topics in ocean turbulence : thermocouples, salt fluxes, and internal hydraulics

Estimating Salinity Variance Dissipation Rate from Conductivity Microstructure Measurements

Inner-shelf circulation off the central Oregon Coast

Hotspots of deep ocean mixing on the Oregon continental slope

Structure of the Baroclinic Tide Generated at Kaena Ridge, Hawaii

Small-Scale Processes in the Coastal Ocean

Structure and composition of a strongly stratified, tidally pulsed river plume

A Coupled Model for Laplace’s Tidal Equations in a Fluid with One Horizontal Dimension and Variable Depth

NashJonathanCEOASStructureVariabilityInternal.pdf

A Thermocouple Probe for High-Speed Temperature Measurement in the Ocean

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Conference Name

Creator

Contributor

Date

Decade

Degree Field

Degree Level

Degree Name

File Format

Language

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search