Index Catalog // ScholarsArchive@OSU

Creator:: Dellasala, Dominick A., Williams, Jack E., Deacon Williams, Cindy, and Franklin, Jerry F.
Abstract:: Fire performs many beneficial ecosystem functions in dry forests and rangelands across much of North America. In the last century, however, the role of fire has been dramatically altered by numerous anthropogenic factors acting as root causes of the current fire crisis, including widespread logging, road building, fire suppression, habitat...
Resource Type:: Article
Full Text:: Policy and Science DOMINICK A. DELLASALA,∗ JACK E. WILLIAMS,† CINDY DEACON WILLIAMS,‡ AND JERRY F

Creator:: Noss, Reed F., Franklin, Jerry F., Baker, William L., Schoennagel, Tania, and Moyle, Peter B.
Abstract:: The management of fire-prone forests is one of the most controversial natural resource issues in the US today, particularly in the west of the country. Although vegetation and wildlife in these forests are adapted to fire, the historical range of fire frequency and severity was huge. When fire regimes are...
Resource Type:: Article
Full Text:: United States Reed F Noss1, Jerry F Franklin2, William L Baker3, Tania Schoennagel4, and Peter B

Creator:: Smyth, William D.
Abstract:: The envelope function for Kelvin–Helmholtz billows growing from a point disturbance is derived on the basis of linear perturbation theory. The result describes an elliptical patch of billows that expands linearly in time as the billows grow. An analytical model of the dispersion relation is used to derive quantitative expressions...
Resource Type:: Article
Full Text:: normal modes. In general, the impulse response function can be written as f (x, y, z, t)= ∫ ∞ −∞ f̂ (z

Creator:: Pearcy, William G.
Abstract:: One of the biggest advantages of remote sensing is that large areas of the earth's surface can be surveyed in short periods of time, providing nearsynoptic "pictures." Repeated surveys of one area, like time-lapse photography, can be interpreted as a movie to illustrate the dynamics of detectable features. These attributes...
Resource Type:: Article
Full Text:: Oregon William G. Pearcy Department of Oceanography Oregon State University Corvallis, Oregon

Creator:: Smyth, William D.
Abstract:: The growth of secondary vortices on the braids separating Kelvin–Helmholtz billows is investigated via numerical simulations. The similarity theory of Corcos & Sherman (1976) is extended to include mixing processes with Prandtl number greater than unity, and is shown to provide a useful description of the physics of the braid...
Resource Type:: Article
Full Text:: weakly stratified shear flow By WILLIAM D. SMYTH College of Oceanic and Atmospheric Sciences, Oregon

Creator:: Smyth, William D.
Abstract:: A sequence of direct simulations is used to study mechanisms for the growth of secondary circulations and turbulence in stratified shear flows. Five cases are examined, of which four deliver Holmboe waves as the primary instability and the fifth generates Kelvin-Helmholtz billows. Secondary circulations range in strength from weak, laminar...
Resource Type:: Article
Full Text:: circulations in Holmboe waves William D. Smyth College of Oceanic and Atmospheric Sciences, Oregon State

Creator:: Benoit-Bird, Kelly J., Gilly, William F., and Au, Whitlow W. L.
Abstract:: This study presents the first target strength measurements of Dosidicus gigas, a large squid that is a key predator, a significant prey, and the target of an important fishery. Target strength of live, tethered squid was related to mantle length with values standardized to the length squared of −62.0, −67.4,...
Resource Type:: Article
Full Text:: , Corvallis, Oregon 97331 William F. Gillyb� Hopkins Marine Station, Department of Biological Sciences

Creator:: Staudigel, Hubert, Helly, John, Koppers, Anthony A. P., Shaw, Henry F., McDonough, William F., Hofmann, Albrecht W., Langmuir, Charles H., Lehnert, Kerstin, Baerbel, Sarbas, Derry, Louis A., and Zindler, Alan
Abstract:: Many disciplines of geochemistry have no data reporting standards, and their use of metadata is inadequately developed. This presents problems to the quality of the published science, and it limits the utility of computers in data analysis and the exploitation of Information Technology (IT). We discuss problems of data and...
Resource Type:: Article
Full Text:: , Germantown, Maryland 20874, USA (henry.shaw@science.doe.gov) William F. McDonough Department of Geology

Creator:: Smyth, William D. and Kimura, Satoshi
Abstract:: The linear stability of a double-diffusively stratified, inflectional shear flow is investigated. Double-diffusive stratification has little effect on shear instability except when the density ratio R[subscript]ρ is close to unity. Double-diffusive instabilities have significant growth rates and can represent the fastest-growing mode even in the presence of inflectionally unstable shear...
Resource Type:: Article
Full Text:: -Diffusive, Stratified Shear Layer WILLIAM D. SMYTH AND SATOSHI KIMURA College of Oceanic and Atmospheric

Creator:: Inoue, Ryuichiro and Smyth, William D.
Abstract:: The dependence of mixing efficiency on time-varying forcing is studied by direct numerical simulation (DNS) of Kelvin–Helmholtz (KH) instability. Time-dependent forcing fields are designed to reproduce a wavelike oscillation by solving the equations of motion in a tilted coordinate frame and allowing the tilt angle to vary in time. Mixing...
Resource Type:: Article
Full Text:: Columbia, Canada WILLIAM D. SMYTH College of Oceanic and Atmospheric Science, Oregon State University

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