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Relationships of density, microfibril angle, and sound velocity with stiffness and strength in mature wood of Douglas-fir

Creator:: Lachenbruch, Barbara, Johnson, G. R., Downes, G., and Evans, R.
Abstract:: The relative importance of density, acoustic velocity, and microfibril angle (MFA) for the prediction of the stiffness (MOE) and strength (MOR) has not been well established for Douglas-fir (Pseudotsuga menziesii). MOE and MOR of small clear specimens of mature wood were better predicted by density and velocity than by either...
Resource Type:: Article
Full Text:: , G.M. Downes, and R. Evans Abstract: The relative importance of density, acoustic velocity, and

Climate oscillations, glacial refugia, and dispersal ability: factors influencing the genetic structure of the least salmonfly, Pteronarcella badia (Plecoptera), in Western North America

Creator:: Sproul, John S., Houston, Derek D., Nelson, C. Riley, Evans, R. Paul, Crandall, Keith A., and Shiozawa, Dennis K.
Abstract:: Background: Phylogeographic studies of aquatic insects provide valuable insights into mechanisms that shape the genetic structure of communities, yet studies that include broad geographic areas are uncommon for this group. We conducted a broad scale phylogeographic analysis of the least salmonfly Pteronarcella badia (Plecoptera) across western North America. We tested...
Resource Type:: Article

Regional to global assessments of phytoplankton dynamics from the SeaWiFS mission

Creator:: Siegel, D. A., Behrenfeld, Michael J., Maritorena, S., McClain, C. R., Antoine, D., Bailey, S. W., Bontempi, P. S., Boss, E. S., Dierssen, H. M., Doney, S. C., Eplee, R. E. Jr., Evans, R. H., Feldman, G. C., Fields, E., Franz, B. A., Kuring, N. A., Mengelt, C., Nelson, N. B., Patt, F. S., Robinson, W. D., Sarmiento, J. L., Swan, C. M., Werdell, P. J., Westberry, T. K., Wilding, J. G., and Yoder, J. A.
Abstract:: Photosynthetic production of organic matter by microscopic oceanic phytoplankton fuels ocean ecosystems and contributes roughly half of the Earth's net primary production. For 13 years, the Sea-viewing Wide Field-of-view Sensor (SeaWiFS) mission provided the first consistent, synoptic observations of global ocean ecosystems. Changes in the surface chlorophyll concentration, the primary...
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Full Text:: ScienceDirect Remote Sensing of Environment j ourna l homepage: www.e lsev ie r .com/ locate / rse Regional to

BioEarth: Envisioning and developing a new regional earth system model to inform natural and agricultural resource management

Creator:: Adam, Jennifer C., Stephens, Jennie C., Chung, Serena H., Chen, Yong, Brady, Michael P., Evans, R. David, Kruger, Chad E., Lamb, Brian K., Liu, Mingliang, Stöckle, Claudio O., Vaughan, Joseph K., Rajagopalan, Kirti, Harrison, John A,, Tague, Christina L., Kalyanaraman, Anath, Guenther, Alex, Leung, Folk-Yan, Leung, L. Ruby, Perleberg, Andrew B., Yoder, Jonathan, Allen, Elizabeth, Anderson, Sarah, Chandrasekharan, Bhagyam, Malek, Keyvan, Mullis, Tristan, Miller, Cody, Nergui, Tsengel, Poinsatte, Justin, Reyes, Julian, Zhu, Jun, Choate, Janet S., Jiang, Xiaoyan, Nelson, Roger, Yoon, Jin-Ho, Yorgey, Georgine G., Johnson, Kristen, Chinnayakanahalli, Kiran J., Hamlet, Alan F., Nijssen, Bart, and Walden, Von
Abstract:: As managers of agricultural and natural resources are confronted with uncertainties in global change impacts, the complexities associated with the interconnected cycling of nitrogen, carbon, and water present daunting management challenges. Existing models provide detailed information on specific sub-systems (e.g., land, air, water, and economics). An increasing awareness of the...
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Full Text:: . C., Stephens, J. C., Chung, S. H., Brady, M. P., Evans, R. D., Kruger, C. E., ... & Walden, V

Hydrothermal activity in the Northwest Lau Backarc Basin: Evidence from water column measurements

Creator:: Lupton, J. E., Arculus, R. J., Resing, J., Massoth, G. J., Greene, R. R., Evans, L. J., and Buck, N.
Abstract:: The Northwest Lau Backarc Basin, consisting of the Northwest Lau Spreading Center (NWLSC) and the Rochambeau Rifts (RR), is unique in having elevated ³He/⁴He ratios (up to 28 R[subscript a]) in the erupted lavas, clearly indicating a hot spot or ocean island basalt (OIB)-type signature. This OIB-type helium signature does...
Resource Type:: Article
Full Text:: , USA (john.e.lupton@noaa.gov) R. J. Arculus Research School of Earth Sciences, Australian National

Mantle hotspot neon in basalts from the Northwest Lau Back-arc Basin

Creator:: Lupton, J. E., Arculus, R. J., Evans, L. J., and Graham, D. W.
Abstract:: The neon isotope compositions of basalts from the Northwest Lau Back-arc Basin reflect three-component mixing between an ocean island basalt (OIB) mantle hotspot component, mid-ocean ridge basalt (MORB) mantle, and atmosphere. Our study confirms that a mantle hotspot signature is present in the neon isotopes of both the Rochambeau Rifts...
Resource Type:: Article
Full Text:: . Lupton,1 R. J. Arculus,2 L. J. Evans,3 and D. W. Graham4 Received 2 February 2012; revised 27 March 2012

Invaded range of the blackberry pathogen Phragmidium violaceum in the Pacific Northwest of the USA and the search for its provenance

Creator:: Morin, Louise, Gomez, Don R., Evans, Katherine J., Neill, Tara M., Mahaffee, Walt F., and Linde, Celeste C.
Abstract:: Field surveys in 2006 confirmed that the exotic rust fungus Phragmidium violaceum was widespread on Rubus armeniacus and Rubus laciniatus in the Pacific Northwest of the USA. The origin and dispersal pattern of this obligate biotrophic pathogen in the USA were investigated by comparing the genetic diversity and structure of...
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Full Text:: Louise Morin • Don R. Gomez • Katherine J. Evans • Tara M. Neill • Walt F. Mahaffee • Celeste C. Linde

An overview of MODIS capabilities for ocean science observations

Creator:: Esaias, Wayne E., Abbott, Mark R., Barton, Ian, Brown, Otis B., Campbell, Janet W., Carder, Kendall L., Clark, Dennis K., Evans, Robert H., Hoge, Frank E., Gordon, Howard R., Balch, William M., Letelier, Richard, and Minnett, Peter J.
Abstract:: The Moderate Resolution Imaging Spectroradiometer (MODIS) will add a significant new capability for investigating the 70% of the Earth's surface that is covered by oceans, in addition to contributing to the continuation of a decadal scale time series necessary for climate change assessment in the oceans. Sensor capabilities of particular...
Resource Type:: Article
Full Text:: An Overview of MODIS Capabilities for Ocean Science Observations Wayne E. Esaias, Mark R. Abbott

Interpretation and design of ocean acidification experiments in upwelling systems in the context of carbonate chemistry co-variation with temperature and oxygen

Creator:: Reum, Jonathan C. P., Alin, Simone R., Harvey, Chris J., Bednaršek, Nina, Evans, Wiley, Feely, Richard A., Hales, Burke, Lucey, Noelle, Mathis, Jeremy T., McElhany, Paul, Newton, Jan, and Sabine, Christopher L.
Abstract:: Coastal upwelling regimes are some of the most productive ecosystems in the ocean but are also among the most vulnerable to ocean acidification (OA) due to naturally high background concentrations of CO₂. Yet our ability to predict how these ecosystems will respond to additional CO₂ resulting from anthropogenic emissions is...
Resource Type:: Article

Coastal vulnerability across the Pacific dominated by El Niño/Southern Oscillation

Creator:: Barnard, Patrick L., Short, Andrew D., Harley, Mitchell D., Splinter, Kristen D., Vitousek, Sean, Turner, Ian L., Allan, Jonathan, Banno, Masayuki, Bryan, Karin R., Doria, André, Hansen, Jeff E., Kato, Shigeru, Kuriyama, Yoshiaki, Randall-Goodwin, Evan, Ruggiero, Peter, Walker, Ian J., and Heathfield, Derek K.
Abstract:: To predict future coastal hazards, it is important to quantify any links between climate drivers and spatial patterns of coastal change. However, most studies of future coastal vulnerability do not account for the dynamic components of coastal water levels during storms, notably wave-driven processes, storm surges and seasonal water level...
Resource Type:: Article
Full Text:: , Kristen D. Splinter4, Sean Vitousek1, Ian L. Turner4, Jonathan Allan5, Masayuki Banno6, Karin R. Bryan7

ScholarsArchive@OSU

Relationships of density, microfibril angle, and sound velocity with stiffness and strength in mature wood of Douglas-fir

Climate oscillations, glacial refugia, and dispersal ability: factors influencing the genetic structure of the least salmonfly, Pteronarcella badia (Plecoptera), in Western North America

Regional to global assessments of phytoplankton dynamics from the SeaWiFS mission

BioEarth: Envisioning and developing a new regional earth system model to inform natural and agricultural resource management

Hydrothermal activity in the Northwest Lau Backarc Basin: Evidence from water column measurements

Mantle hotspot neon in basalts from the Northwest Lau Back-arc Basin

Invaded range of the blackberry pathogen Phragmidium violaceum in the Pacific Northwest of the USA and the search for its provenance

An overview of MODIS capabilities for ocean science observations

Interpretation and design of ocean acidification experiments in upwelling systems in the context of carbonate chemistry co-variation with temperature and oxygen

Coastal vulnerability across the Pacific dominated by El Niño/Southern Oscillation

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