Index Catalog // ScholarsArchive@OSU

Technological Advancement in Tower-Based Canopy Reflectance Monitoring: The AMSPEC-III System

Creator:: Tortini, Riccardo, Hilker, Thomas, Coops, Nicholas C., and Nesic, Zoran
Abstract:: Understanding plant photosynthesis, or Gross Primary Production (GPP), is a crucial aspect of quantifying the terrestrial carbon cycle. Remote sensing approaches, in particular multi-angular spectroscopy, have proven successful for studying relationships between canopy-reflectance and plant-physiology processes, thus providing a mechanism to scale up. However, many different instrumentation designs exist and...
Resource Type:: Article
Full Text:: : The AMSPEC-III System Riccardo Tortini 1,*, Thomas Hilker 2, Nicholas C. Coops 1 and Zoran Nesic 3

Ascorbylation- the biological relevance of covalently bound ascorbic acid

Creator:: Kesinger, Nicholas G.
Abstract:: Ascorbic acid, or vitamin C, is well known as a co-factor for proline-hydroxylase and as an anti-oxidant. However, it is also capable of forming covalent bonds, particularly in the role of a nucleophile, henceforth termed 'ascorbylation'. The ascorbylation of electrophiles can occur under physiological conditions. Furthermore, there are a number...
Resource Type:: Dissertation
Full Text:: Nicholas G. Kesinger for the degree of Doctor of Philosophy in Pharmacy presented on September 8th, 2009

The Effects of Seed Source and Planting Environment on Douglas-fir (Pseudotsuga menziesii) Foliage Diseases

Creator:: Wilhelmi, Nicholas
Abstract:: Douglas-fir (Pseudotsuga menziesii) is a commercially and ecologically important tree species native to western North America. The foliar pathogens Phaeocryptopus gaeumannii, the causal agent of Swiss Needle Cast, and Rhabdocline species, the causal agents of Rhabdocline needle cast, are two important pathogens specific to Douglas-fir. These pathogens are highly influenced...
Resource Type:: Masters Thesis
Full Text:: :10.1094/PHP-2001-1029-01-RS. Coops, N. C., R. H. Waring, A. Plowright, J. Lee, and T. E. Dilts. 2016

Understanding Drivers of Glacier Length Variability Over the Last Millennium

Creator:: Huston, Alan C.
Abstract:: Changes in glacier length reflect the integrated response to local fluctuations in temperature and precipitation, but when do such changes indicate forced climate change, and when do they indicate natural variability? In this study, we simulate the past ~1000 years of glacier length variability across the globe using the 3-stage...
Resource Type:: Honors College Thesis
Full Text:: :_____________________________________________________ Nicholas Siler Changes in glacier length reflect the integrated response to local

Process-Based Modeling to Assess the Effects of Recent Climatic Variation on Site Productivity and Forest Function across Western North America

Creator:: Waring, Richard H., Coops, Nicholas C., Mathys, Amanda, Hilker, Thomas, and Latta, Greg
Abstract:: A process-based forest growth model, 3-PG (Physiological Principles Predicting Growth), parameterized with values of soil properties constrained by satellite-derived estimates of maximum leaf area index (LAI[subscript max]), was run for Douglas-fir (Pseudotsuga menziesii) to contrast the extent to which site growth potential might vary across western North America between a...
Resource Type:: Article
Full Text:: and Forest Function across Western North America Richard H Waring 1 , Nicholas C Coops 2

Virtual constellations for global terrestrial monitoring

Creator:: Wulder, Michael A., Hilker, Thomas, White, Joanne C., Coops, Nicholas C., Masek, Jeffrey G., Pflugmacher, Dirk, and Crevier, Yves
Abstract:: Free and open access to satellite imagery and value-added data products have revolutionized the role of remote sensing in Earth system science. Nonetheless, rapid changes in the global environment pose challenges to the science community that are increasingly difficult to address using data from single satellite sensors or platforms due...
Resource Type:: Article
Full Text:: ., Coops, N. C., Masek, J. G., Pflugmacher, D., & Crevier, Y. (2015). Virtual constellations for global

Understanding the Impact of Global Warming on Orographic Rain Shadows: Insights from a Pseudo-Global Warming Simulation over the Western United States

Creator:: Koszuta, Matthew
Abstract:: Some studies using regional climate models (RCMs) suggest a weakening of the climatological rain-shadow along the Cascade and Sierra Nevada mountains during the western US cool-season. To identify the possible mechanisms of rain-shadow weakening under warming, a new set of 30-year, high-resolution (6 km) pseudo-global warming (PGW) simulations were analyzed...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: ______________________________________________________ Nicholas Siler Some

Evaluating a Zonal-mean Hydrologic Model Against a Water Tag-enabled Global Simulation

Creator:: Mandovi, Andrew
Abstract:: The hydrologic cycle on Earth comprises the transitions among the solid, liquid, and gaseous phases of water. Understanding the hydrologic cycle is of course important for climate science, but also for agricultural, drinking water, and disaster preparedness purposes. Improvements in satellite observations and general circulation models (GCMs) have led to...
Resource Type:: Masters Thesis
Full Text:: awarded to Dr. Nicholas Siler. I am thankful and grateful to my advisor Nick, for his patience through

Systematically evaluating the developmental toxicity of nanomaterials using the zebrafish model

Creator:: Edwards, Sabrina R.
Abstract:: As engineered nanomaterials (ENM) become more common in consumer products, it is crucial to rapidly assess toxicity of unique ENM. Previous studies rarely focused on standardizing nanotoxicity testing, leading to inconsistent and irreproducible results. This study characterized a variety of ENM of different size, shape, core type, and surface charge...
Resource Type:: Poster, Undergraduate Thesis, and Presentation
Full Text:: : Healthy! B: Developmentally delayed C: Mortality D: Healthy! E: PE, YSE, Jaw F: Healthy! G: Jaw, Eye, PE

Remote sensing of transpiration and heat fluxes using multi-angle observations

Creator:: Hilker, Thomas, Hall, Forrest G., Coops, Nicholas C., Collatz, James G., Black, T. Andrew, Tucker, Compton J., Sellers, Piers J., and Grant, Nicholas
Abstract:: Surface energy balance is a major determinant of land surface temperature and the Earth's climate. To date, there is no approach that can produce effective, physically consistent, global and multi-decadal energy–water flux data over land. Net radiation (R[subscript n]) can be quantified regionally using satellite retrievals of surface reflectance and...
Resource Type:: Article
Full Text:: b, Nicholas C. Coops c, James G. Collatz b, T. Andrew Black d, Compton J. Tucker b, Piers J. Sellers

ScholarsArchive@OSU

Technological Advancement in Tower-Based Canopy Reflectance Monitoring: The AMSPEC-III System

Ascorbylation- the biological relevance of covalently bound ascorbic acid

The Effects of Seed Source and Planting Environment on Douglas-fir (Pseudotsuga menziesii) Foliage Diseases

Understanding Drivers of Glacier Length Variability Over the Last Millennium

Process-Based Modeling to Assess the Effects of Recent Climatic Variation on Site Productivity and Forest Function across Western North America

Virtual constellations for global terrestrial monitoring

Understanding the Impact of Global Warming on Orographic Rain Shadows: Insights from a Pseudo-Global Warming Simulation over the Western United States

Evaluating a Zonal-mean Hydrologic Model Against a Water Tag-enabled Global Simulation

Systematically evaluating the developmental toxicity of nanomaterials using the zebrafish model

Remote sensing of transpiration and heat fluxes using multi-angle observations

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