Now showing items 1-10 of 19
Spatio-temporal Spectra and Spectral Transfers in Fluid Dynamics.
(2015)
Motivated in part by interest in low-frequency variability in complicated flows such as the ocean or atmosphere but also by a general interest in the spatio-temporal structure of turbulent flows, we investigate two-dimensional ...
MESSENGER Investigations of the Plasma Environment at Mercury.
(2013)
We report on the first observations of plasma ions at Mercury, from the Fast Imaging Plasma Spectrometer (FIPS). These observations were made by the MESSENGER spacecraft during two flybys of Mercury and while in orbit ...
Numerical Study of Coronal Mass Ejections, Shocks, and Turbulence: from Chromosphere to 1 AU.
(2014)
My dissertation focuses on one of the major source of destructive space weather: coronal mass ejections (CMEs). By helping develop and utilizing a new data-driven global MHD model: The Alfven Wave Solar Model (AWSoM) in ...
Diagnosis and Improvement of Cryosphere Shortwave Radiation Biases in Global Climate Models.
(2015)
Faithful representation of cryospheric change is critical for accurate climate modeling, but there are complicating issues in representing snow extent and reflectance in physically realistic ways. This thesis is a collection ...
Ultra-Low Frequency Standing Alfven Waves: Global Magnetospheric Modeling of Resonant Wave-Wave Interactions.
(2016)
Alfven waves are an important energy transport modality in the collisionless plasmas that dominate Earth's magnetosphere. While wave-particle interactions are well understood, the mechanisms that govern wave-wave interactions ...
Radiative Reverse Shock Experiments in High-energy-density Plasmas.
(2013)
This thesis presents the development of a new high-energy-density laboratory astrophysics (HEDLA) experimental platform that explores radiative reverse shock waves. In the context of this work, a reverse shock is a shock ...
Factors Impacting Observation-Based Estimates of Urban Greenhouse Gas Emissions
(2018)
Urban areas are responsible for a large and increasing fraction of anthropogenic greenhouse gas emissions. Accurate methods for quantifying and monitoring those emissions are needed to suggest and evaluate mitigation ...
Diagnosing Energy Transfer in an Idealized Ocean-Atmosphere Model: A Frequency-Domain Approach
(2019)
Climate variability is an area of great interest. The ocean and atmosphere, two major components of the climate system, are inherently coupled, and there has been recent interest in deciphering whether oceanic and atmospheric ...
Strong Shock Waves in Highly Porous Materials
(2019)
Strong shock waves traversing through porous materials occur in a broad range of applications. Foamed plastics are a popular material in many high-energy-density physics (HEDP) experiment due to the low, tunable density, ...
CRASH Simulation of Rayleigh-Taylor, Richtmyer-Meshkov, and Magnetic Rayleigh-Taylor Instability.
(2013)
The research discussed in this thesis was motivated by the supernova Rayleigh-Taylor (SNRT) experiments conducted in 2009. Originally designed as laboratory astrophysics experiments relevant to the Rayleigh-Taylor Instability ...