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  • Atmospheric and Sea Ice Circulation Patterns During Lead Formation at Point Barrow

    Creator:
    Jewell, MacKenzie E.
    Abstract:
    In winter and spring, ice-coast interactions driven by winds and ocean currents cause sea ice fractures (leads) to form repeatedly along Arctic coastlines. These events are often associated with rapid and expansive changes in sea ice drift and state that are challenging to predict and represent in models. We investigate...
    Resource Type:
    Masters Thesis
    Full Text:
    committee, Björn Erlingsson and Simon de Szoeke, for sharing their expertise and suggestions. Additionally

  • Augmenting and interpreting ice core greenhouse gas records

    Creator:
    Rosen, Julia L.
    Abstract:
    The three studies that comprise this dissertation seek to answer significant questions in paleoclimatology through unconventional applications of ice core greenhouse gas data. These studies involve different gases and span the interval of time between the Last Glacial Maximum and the Industrial Revolution, but are united by their nontraditional use...
    Resource Type:
    Dissertation

  • Basin-scale variation in the spatial pattern of fall movement of juvenile coho salmon in the West Fork Smith River, Oregon

    Creator:
    Hance, Dalton J.
    Abstract:
    from the summer dry season to the winter wet season. Such movement that connects summer and winter habitats may be particularly important for coho salmon, O. kisutch, because availability of overwintering habitat can limit freshwater survival for this species. Here, I describe basin-scale variability in the spatial pattern of fall...
    Resource Type:
    Masters Thesis

  • 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:
    Niezgoda, Kaleb Horlick and Dr. David Noone. Dr. Simon de Szoeke provided assistance and expertise for

  • Quantitative Study of Math Excel Calculus Courses

    Creator:
    Watkins, Christopher H.
    Abstract:
    About twenty years ago, a large, rural, doctoral granting institution with an undergraduate population of approximately 24,000 in the pacific northwest of the United States established the Math Excel program. Students would attend lectures three times a week for 50 minutes like a traditional course, and they would also attend...
    Resource Type:
    Masters Thesis
    Full Text:
    . Sarah Emerson, and Dr. Simon de Szoeke for their feedback and advice given throughout this process

  • Vertical Structure of the Lower Troposphere in a Changing Arctic

    Creator:
    Watkins, Daniel M.
    Abstract:
    The Arctic climate system is changing dramatically as a response to rising atmospheric greenhouse gas concentrations. Key indicators of Arctic change include thinning and retreating of Arctic pack ice, thawing permafrost, greening tundra, and rising surface temperatures. The structure of the atmospheric boundary layer influences and is influenced by processes...
    Resource Type:
    Dissertation
    Full Text:
    many interesting tangential discussions. To Eric Skyllingstad, Simon de Szoeke, and Justin Wettstein

  • On the Use of Baseline Values in Randomized Clinical Trials

    Creator:
    Castillo Roldan, Alejandra M.
    Abstract:
    In many scientific settings, investigators are interested in the effect of a new treatment. To have a point of comparison data is collected from patients before treatment groups are assigned. When seeking to test the presence of a significant treatment effect it may be unclear how baseline measurements should be...
    Resource Type:
    Masters Thesis
    Full Text:
    ∗ at each value of θ0. An additional assessment of the estimator performance is the alignment of p

  • Bright air : geoprocessing thermal imagery to map the nocturnal dynamics of the boundary layer in a mountain valley

    Creator:
    Johnson, Christopher
    Abstract:
    A thermal infrared (TIR) camera is used to remotely sense the foliage temperature in a mountain valley. The foliage temperature is used as a proxy for air temperature and can be used to study and map the dynamics of the nocturnal, weak-wind boundary layer in this valley. All radiative flux...
    Resource Type:
    Masters Thesis
    Full Text:
    , Simon de Szoeke, Anne Nolin, and Bill Bogley, also deserve credit for the successful completion of

  • Relationship between tropical Atlantic Sea surface temperature variability and southern Indian Ocean tropical cyclones

    Creator:
    DeBlander, Evan F.
    Abstract:
    Recent studies have found that equatorial Atlantic sea surface temperature (SST) variability may be influencing tropical Indian Ocean climate (Kucharski 2009, Wang 2009). Due to the economic and social impact of tropical cyclones, it is important to investigate how an Atlantic-Indian Ocean connection may be affecting tropical cyclone behavior in...
    Resource Type:
    Masters Thesis
    Full Text:
    to thank my committee members - Eric Skyllingstad, Simon de Szoeke, and Roger Graham - for their

  • Effects of aerosols on the properties of deep convective clouds

    Creator:
    Brown, Daniel A.
    Abstract:
    Aerosols are tiny particles that serve as nuclei for cloud droplet and ice crystal formation. Increases in aerosol concentration lead to clouds with smaller but more numerous droplets. Some recent studies have found evidence that ice crystal size in deep convective clouds is also reduced by elevated aerosol concentrations. In...
    Resource Type:
    Masters Thesis
    Full Text:
    for all of his help. I would like to thank Drs. Karen Shell, Simon de Szoeke, and Jennifer Field