Index Catalog // ScholarsArchive@OSU

Creator:: Klymak, Jody M., Moum, James N., Nash, Jonathan D., Kunze, Eric, Girton, James B., Carter, Glenn S., Lee, Craig M., Sanford, Thomas B., and Gregg, Michael C.
Abstract:: An integrated analysis of turbulence observations from four unique instrument platforms obtained over the Hawaiian Ridge leads to an assessment of the vertical, cross-ridge, and along-ridge structure of turbulence dissipation rate and diffusivity. The diffusivity near the seafloor was, on average, 15 times that in the midwater column. At 1000-m...
Resource Type:: Article
Full Text:: JONATHAN D. NASH College of Oceanic and Atmospheric Sciences, Oregon State University, Corvallis, Oregon

Creator:: Tang, Dajun, Moum, James N., Lynch, James F., Abbot, Phil, Chapman, Ross, Dahl, Peter H., Duda, Timothy F., Gawarkiewicz, Glen, Glenn, Scott, Goff, John A., Graber, Hans, Kemp, John, Maffei, Andrew, Nash, Jonathan D., and Newhall, Arthur
Abstract:: Since the end of the Cold War, the US Navy has had an increasing interest in continental shelves and slopes as operational areas. To work in such areas requires a good understanding of ocean acoustics, coastal physical oceanography, and, in the modern era, autonomous underwater vehicle (AUV) operations. Each area...
Resource Type:: Article
Full Text:: Information Systems Specialist, Woods Hole Oceanographic Institution, Woods Hole, MA, USA. JoNathaN d. Nash

Creator:: Alford, Matthew H., Peacock, Thomas, MacKinnon, Jennifer A., Nash, Jonathan D., Buijsman, Maarten C., Centurioni, Luca R., Chao, Shenn-Yu, Chang, Ming-Huei, Farmer, David M., Fringer, Oliver B., Fu, Ke-Hsien, Gallacher, Patrick C., Graber, Hans C., Helfrich, Karl R., Jachec, Steven M., Jackson, Christopher R., Klymak, Jody M., Ko, Dong S., Jan, Sen, Johnston, T. M. Shaun, Legg, Sonya, Lee, I-Huan, Lien, Ren-Chieh, Mercier, Matthieu J., Moum, James N., Musgrave, Ruth, Park, Jae-Hun, Pickering, Andrew I., Pinkel, Robert, Rainville, Luc, Ramp, Steven R., Rudnick, Daniel L., Sarkar, Sutanu, Scotti, Alberto, Simmons, Harper L., St. Laurent, Louis C., Venayagamoorthy, Subhas K., Wang, Yu-Huai, Wang, Joe, Yang, Yiing J., Paluszkiewicz, Theresa, and Tang, Tswen-Yung (David)
Abstract:: Internal gravity waves, the subsurface analogue of the familiar surface gravity waves that break on beaches, are ubiquitous in the ocean. Because of their strong vertical and horizontal currents, and the turbulent mixing caused by their breaking, they affect a panoply of ocean processes, such as the supply of nutrients...
Resource Type:: Article
Full Text:: ., MacKinnon, J. A., Nash, J. D., Buijsman, M. C., Centuroni, L. R., ... & Tang, T. Y. D. (2015). The

Creator:: Zhang, Yanwei and Moum, James N.
Abstract:: A procedure for estimating thermal variance dissipation rate χ[subscript]T by scaling the inertial-convective subrange of temperature gradient spectra from thermistor measurements on a Tropical Atmosphere Ocean (TAO) equatorial mooring, maintained by NOAA’s National Data Buoy Center, is demonstrated. The inertial-convective subrange of wavenumbers/frequencies is contaminated by the vertical motion induced...
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Full Text:: Ray Kreth for their technical assistance and to A. Perlin for computing help. Jonathan Nash and A

Creator:: Moum, James N., Caldwell, Douglas R., and Paulson, Clayton A.
Abstract:: Twelve days of microstructure measurements at the equator (140°W) in November 1984 showed a surprisingly strong effect of both daily cycle of solar heating and wind on mixing in the upper ocean. Because of limited variations in atmospheric forcing and currents during the experiment, processes in the daily mixing cycle...
Resource Type:: Article
Full Text:: Atmospheric Sciences, Oregon State University, Corvallis, OR, USA. Jonathan D. Nash is Associate Professor

Creator:: Edwards, Kathleen A., MacCready, Parker, Moum, James N., Pawla, Geno, Klymak, Jody M., and Perlin, Alexander
Abstract:: Barotropic tidal currents flowing over rough topography may be slowed by two bottom boundary–related processes: tangential stress of the bottom boundary layer, which is generally well represented by a quadratic drag law, and normal stress from bottom pressure, known as form drag. Form drag is rarely estimated from oceanic observations...
Resource Type:: Article
Full Text:: D’Asaro and Eric Kunze (UW), and Jonathan Nash (OSU). This work was supported by the ONR Scholar of

Creator:: Klymak, Jody M. and Moum, James N.
Abstract:: A sequence of three internal solitary waves of elevation were observed propagating shoreward along a near-bottom density interface over Oregon’s continental shelf. These waves are highly turbulent and coincide with enhanced optical backscatter, consistent with increased suspended sediments in the bottom boundary layer. Nonlinear solitary wave solutions are employed to...
Resource Type:: Article
Full Text:: performed the preliminary processing and with Jonathan Nash and Jennifer MacKinnon commented on early drafts

Creator:: Klymak, Jody M. and Moum, James N.
Abstract:: Horizontal tow measurements of internal waves are rare and have been largely supplanted in recent decades by vertical profile measurements. Here, estimates of isotherm displacements and turbulence dissipation rate from a towed vehicle deployed near Hawaii are presented. The displacement data are interpreted in terms of horizontal wavenumber spectra of...
Resource Type:: Article
Full Text:: Marlin flying on a straight path. Valu- able discussions were held with Rob Pinkel, Jonathan Nash

Creator:: Zaron, Edward D. and Moum, James N.
Abstract:: A reexamination of turbulence dissipation measurements from the equatorial Pacific shows that the turbulence diffusivities are not a simple function of the gradient Richardson number. A widely used mixing scheme, the K-profile parameterization, overpredicts the turbulent vertical heat flux by roughly a factor of 4 in the stably stratified region...
Resource Type:: Article
Full Text:: version of this manuscript. Con- versations with Bill Smyth, Jonathan Nash, and Andrew Bennett also

ScholarsArchive@OSU