Index Catalog // ScholarsArchive@OSU

Vegetation characterization of three contrasting riparian areas : Williamette Valley, Oregon

Creator:: McAllister, Lynne S., Dwire, Kathleen A., and Griffith, Stephen M.
Abstract:: Much of the native riparian vegetation of the Willamette Valley, Oregon, has been replaced with agricultural crops or invasive non-native plant species. Detailed information about current Willamette Valley riparian vegetation is generally lacking. Plant specie composition data are useful in a variety of applications, including condition assessment, environmental monitoring and...
Resource Type:: Technical Report

Leaf litter chemistry controls on decomposition of Pacific Northwest trees and woody shrubs

Creator:: Valachovic, Y. S., Caldwell, B. A., Cromack Jr., K., and Griffiths, Robert P.
Abstract:: The effects of initial leaf litter chemistry on first-year decomposition rates were studied for 16 common Pacific Northwest conifers, hardwoods, and shrubs at the H.J. Andrews Experimental Forest in western Oregon. Leaf litters were analyzed for C, N, P, K, Ca, Mg, proximate organic fractions (nonpolar, polar, acid-hydrolyzable extractives, acid-hydrolyzable...
Resource Type:: Article
Full Text:: –500 m) for each species in western Oregon in the fall of 1995. The five different collection sites

Cost and Returns of Extensive Shrimp (Penaeus Monodon) in Disease-Affected Area: A Farm Ownerships Comparison

Creator:: Nazmul Alam, S. M.
Abstract:: This study was conducted to assess the economic consequences gained from disease-affected extensive shrimp farming by three major farm ownerships: individual, group and outside respectively. Key data for cost and returns were collected using a questionnaire survey between June and August 2002 from southwest Bangladesh. Profitability of operations was affected...
Resource Type:: Other
Full Text:: ): S. M. Nazmul Alam Abstract: This study was conducted to assess the economic consequences

Normal-Mode Instabilities of a Time-Dependent Coastal Upwelling Jet

Creator:: Durski, S. M., Samelson, R. M., and Allen, J. S.
Abstract:: The linear stability of a nearly time-periodic, nonlinear, coastal upwelling–downwelling circulation, over alongshore-uniform topography, driven by a time-periodic wind stress is investigated using numerical methods. The near-periodic alongshore-uniform basic flow is obtained by forcing a primitive equation numerical model of coastal ocean circulation with periodic wind stress. Disturbance growth on...
Resource Type:: Article
Full Text:: Jet S. M. DURSKI, R. M. SAMELSON, J. S. ALLEN, AND G. D. EGBERT College of Oceanic and Atmospheric

Coastal Wind-Driven Circulation in the Vicinity of a Bank. Part II: Modeling Flow over the Heceta Bank Complex on the Oregon Coast

Creator:: Whitney, Michael M. and Allen, J. S.
Abstract:: This study investigates wind-driven circulation in the vicinity of the Heceta Bank complex along the Oregon shelf. Numerical experiments forced with steady winds (0.1 Pa) are conducted; upwelling and downwelling cases are compared. The asymmetric bank bathymetry is the only configurational difference from the symmetric bank runs analyzed in Part...
Resource Type:: Article
Full Text:: at a 100-m interval. 1308 J O U R N A L O F P H Y S I C A L O C E A N O G R A P H Y VOLUME 39

Coastal Wind-Driven Circulation in the Vicinity of a Bank. Part I: Modeling Flow over Idealized Symmetric Banks

Creator:: Whitney, Michael M. and Allen, J. S.
Abstract:: This study examines how coastal banks influence wind-driven circulation along stratified continental shelves. Numerical experiments are conducted for idealized symmetric banks; the standard bank (200 km long and 50 km wide) has dimensions similar to the Heceta Bank complex along the Oregon shelf. Model runs are forced with 10 days...
Resource Type:: Article
Full Text:: hc 5 10 m, u 5 5, and b 5 1. This s-coordinate configuration allows for better resolu- tion near the

Returns of Different Cropping Systems in Disease-Affected Shrimp Areas in Southwest Bangladesh: An Economic Evaluation

Creator:: Alam, S. M. Nazmul and Pokrant, Bob
Abstract:: This study investigated cropping systems and economic analyses in disease-affected shrimp farming areas in southwest Bangladesh. Key data were collected using a questionnaire between June and August 2002. The identified farming systems were shrimp, shrimp+paddy, and paddy respectively. In shrimp+paddy farming, paddy was introduced in shrimp farm by converting a...
Resource Type:: Other
Full Text:: Author(s): S. M. Nazmul Alam, Bob Pokrant Abstract: This study investigated cropping systems and

Finite-Amplitude Evolution of Instabilities Associated with the Coastal Upwelling Front

Creator:: Durski, Scott M. and Allen, J. S.
Abstract:: A primitive equation model is used to study the finite-amplitude evolution of instabilities associated with the coastal upwelling front. Simulations of increasing complexity are examined that represent idealizations of summer conditions off the Oregon coast, including cases with steady and with time-variable wind in a domain with alongshore-uniform bathymetry and...
Resource Type:: Article
Full Text:: Coastal Upwelling Front SCOTT M. DURSKI AND J. S. ALLEN College of Oceanic and Atmospheric Sciences

An econometric analysis of output supply and input demand in the Canadian softwood lumber industry

Creator:: Latta, Gregory S. and Adams, Darius M.
Abstract:: Few studies have examined the own-price elasticity of Canadian softwood lumber supply or output-adjusted factor demand elasticities over the past two decades, despite the utility of these measures in understanding producer response to tariffs, to market shifts (such as the decline in U.S. public harvest), and to changes in domestic...
Resource Type:: Article
Full Text:: in the Canadian softwood lumber industry Gregory S. Latta and Darius M. Adams Abstract: Few studies

Thorium-230 normalized particle flux and sediment focusing in the Panama Basin region during the last 30,000 years

Creator:: Kienast, S. S., Kienast, M., Mix, Alan C., Calvert, S. E., and Francois, R.
Abstract:: Application of the ²³⁰Th normalization method to estimate sediment burial fluxes in six cores from the eastern equatorial Pacific (EEP) reveals that bulk sediment and organic carbon fluxes display a coherent regional pattern during the Holocene that is consistent with modern oceanographic conditions, in contrast with estimates of bulk mass...
Resource Type:: Article
Full Text:: focusing in the Panama Basin region during the last 30,000 years S. S. Kienast,1 M. Kienast,1 A. C. Mix,2

ScholarsArchive@OSU

Vegetation characterization of three contrasting riparian areas : Williamette Valley, Oregon

Leaf litter chemistry controls on decomposition of Pacific Northwest trees and woody shrubs

Cost and Returns of Extensive Shrimp (Penaeus Monodon) in Disease-Affected Area: A Farm Ownerships Comparison

Normal-Mode Instabilities of a Time-Dependent Coastal Upwelling Jet

Coastal Wind-Driven Circulation in the Vicinity of a Bank. Part II: Modeling Flow over the Heceta Bank Complex on the Oregon Coast

Coastal Wind-Driven Circulation in the Vicinity of a Bank. Part I: Modeling Flow over Idealized Symmetric Banks

Returns of Different Cropping Systems in Disease-Affected Shrimp Areas in Southwest Bangladesh: An Economic Evaluation

Finite-Amplitude Evolution of Instabilities Associated with the Coastal Upwelling Front

An econometric analysis of output supply and input demand in the Canadian softwood lumber industry

Thorium-230 normalized particle flux and sediment focusing in the Panama Basin region during the last 30,000 years

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