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  • Predicting Fish Recruitment in the Northeast Pacific Using Climate Indices

    Creator:
    Riley, Shannon L.
    Abstract:
    Predicting recruitment, which is dependent on parent stock size and climate, is vital for forecasting productivity of fish stocks. The effects of climate can be analyzed via the use of climate indices. Three climate indices, the Pacific Decadal Oscillation, the North Pacific Gyre Oscillation, and the Oceanic Niño Index, describe...
    Resource Type:
    Honors College Thesis
    Full Text:
    _____________________________________________________________________ Justin Wettstein, Committee Member, representing Physics of Oceans and Atmospheres

  • 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:
    . Nicholas Siler, Justin J. Wettstein, and L. Ruby Leung—who provided guidance and support throughout the

  • Large Ensembles of Regional Climate Simulations over the western United States

    Creator:
    Li, Sihan
    Abstract:
    Large ensembles of regional climate simulations were generated from the weather@home distributed volunteer computing project over the western US domain. Weather@home uses the U.K. Met Office Hadley Centre’s regional climate model HadRM3P (~0.22°) nested within the atmospheric global model HadAM3P (1.875 longitude° by 1.25 latitude°). Simulations from HadRM3P were evaluated...
    Resource Type:
    Dissertation
    Full Text:
    influenced me tremendously and I have learned so much. I would also like to thank Prof. Wettstein, for

  • Generalized Preconditioning to Accelerate Simulations with Large Multiphase Chemical Kinetics Models

    Creator:
    Walker, Anthony S.
    Abstract:
    Combustion emissions produced from burning real transportation fuels have many environmental impacts. However, detailed chemistry across multiple phases, time scales, and thermodynamic conditions make predicting combustion emissions challenging. Detailed modeling of the gas phase alone is prohibitively expensive, due to the large size and stiffness of the kinetic models. The...
    Resource Type:
    Dissertation
    Full Text:
    mole-based state vector and Jacobian matrix, J (S), to develop the preconditioner, P. This approximate

  • Evaluating the seismic risk and resilience of an electrical power system

    Creator:
    Chalishazar, Vishvas H.
    Abstract:
    The Pacific Northwest is part of the "Ring of Fire," which is well-known for heavy seismic activity. Numerous active faults in the area have encouraged electric grid managers in the region to more deeply contemplate and proactively intervene to support grid resilience. This research introduces Monte Carlo (MC) based power...
    Resource Type:
    Dissertation
    Full Text:
    Model for Resiliency Using PBEE Method. Bus ID Asset ID p[Hi|Aq ], i = 1, . . . , w p[Rj |Hi], j = 1

  • Intraseasonal Oscillations of ~20 days Revisited: The Jet Stream and its Ecological Implications along the Oregon Coast

    Creator:
    Herweck, Kendra
    Abstract:
    Intraseasonal oscillations in the atmosphere-ocean system can affect weather patterns and regional ecosystems. In turn, these oscillations can be affected by climate variability, resulting in additive and/or non-linear responses of regional ecosystems to climate forcing. In the Northern California Current, a strong correlation was identified between the location of the...
    Resource Type:
    Masters Thesis

  • Hot, hot, heat : evaluating Phoenix, Arizona cooling centers through a project management perspective

    Creator:
    Leone, Cassandra M.
    Abstract:
    Global annual average temperatures are rising, creating extreme heat events or heatwaves that are increasing in frequency, length, and severity. The world will endure more of these events as climate change worsens and heat-related mortality and morbidity will increase due to warming conditions. At the center of heatwaves are urban...
    Resource Type:
    Masters Thesis
    Full Text:
    . To Dr. Justin Wettstein, for being my first glimmer of hope while navigating creating a committee

  • Analysis of Surface Heat Flux Anomalies to Understand Recent Northeast Pacific Marine Heatwave Events

    Creator:
    Yi-Wei, Chen
    Abstract:
    Several large-scale marine heatwave events occurred during the last 10 years in the North Pacific. A particular extreme marine heatwave in the North Pacific called the blob created an unprecedented high peak of sea surface temperature (SST) during 2013/14. MHW events had significant impacts on downstream weather and precipitation patterns...
    Resource Type:
    Masters Thesis
    Full Text:
    value of 1004 𝐽 ∗ 𝑘𝑔3, ∗ 𝐾3,; 𝐿% is the latent heat of evaporation, 2.5 ∗ 10! 𝐽 ∗ 𝑘𝑔3,; 𝐶

  • Survey of isotope ratios in the near coastal outflow of the Columbia River

    Creator:
    Dolan-Caret, Amari
    Abstract:
    This report details ocean water salinity and stable isotope measurements (deuterium (D) and 18O) in water collected from April 17 2018 to April 21 2018 in the coastal waters of Oregon, USA. Measurements were made from surface, ship flow-through, and CTD rosette bottle samples collected as part of a student-led...
    Resource Type:
    Capstone Project
    Full Text:
    . References Bershaw, J. (2018), Controls on Deuterium Excess across Asia, Geosciences, 8, 257, doi:10.3390

  • Diagnosing barriers to climate change adaptation Oregon state agencies

    Creator:
    Dello, Kathie D.
    Abstract:
    Despite a history of leadership and creative approaches to environmental issues, Oregon has struggled to adequately prepare for the current and future impacts of climate change. Oregon faces barriers and limits to understanding, planning, and implementing climate adaptation that can be examined and quantified. Climate change makes for an additional...
    Resource Type:
    Dissertation
    Full Text:
    project. Dr. Justin Wettstein continues to offer thoughtful comments, guidance, and support and I