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Filtering by: Creator MacDonald, M. Remove constraint Creator: MacDonald, M. Academic Affiliation College of Earth, Ocean, and Atmospheric Sciences Remove constraint Academic Affiliation: College of Earth, Ocean, and Atmospheric Sciences Committee Member Mix, Alan C. Remove constraint Committee Member: Mix, Alan C.

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  • Applying a Dynamic Time Warping Approach to Stratigraphic Correlation: Quaternary Magnetostratigraphy and Ediacaran–Cambrian Chemostratigraphy

    Creator:
    Hagen, Cedric J.
    Abstract:
    Magneto- and chemostratigraphic correlation underpins much of our understanding of Earth history, yet typical correlation techniques are neither quantitative nor objective. Within this dissertation, I detail my efforts to develop and apply dynamic programming-based algorithms that accomplish optimal and reproducible stratigraphic alignment. I apply these algorithms to three geologic intervals:...
    Resource Type:
    Dissertation
    Full Text:
    algorithm development. Chapter 3: Drs. Jessica R. Creveling, J. L. Moore, Adam C. Maloof, Susannah M

  • The late holocene atmospheric methane budget reconstructed from ice cores

    Creator:
    Mitchell, Logan E.
    Abstract:
    Ice cores are considered the gold standard for recording past climate and biogeochemical changes. However, gas records derived from ice core analysis have until now been largely limited to centennial and longer timescales because sufficient temporal resolution and analytical precision have been lacking, except during rare times when atmospheric concentrations...
    Resource Type:
    Dissertation
    Full Text:
    . Baggenstos and A. Orsi contributed δ15N isotopic measurements. J. Severinghaus, R. Alley, and M. Albert

  • Carbon cycle variability during the last millennium and last deglaciation

    Creator:
    Bauska, Thomas K.
    Abstract:
    The exchange of carbon on earth is one of the fundamental processes that sustains life and regulates climate. Since the onset of the Industrial Revolution, the burning of fossil fuels and anthropogenic land conversion have altered the carbon cycle, increasing carbon dioxide in the atmosphere to levels that are unprecedented...
    Resource Type:
    Dissertation
    Full Text:
    . Sigman, D. M., and E. A. Boyle (2000), Glacial/interglacial variations in atmospheric carbon dioxide