Uncertainties in Projections of Tropical Precipitation and Atmospheric Circulation and their Remote Impacts
My work focuses on understanding anthropogenic changes in precipitation and atmospheric circulation by employing climate models of varying levels of complexity. This thesis has two goals: (1) to understand the forced response of tropical air-sea interactions across time scales and their extratropical impact, and (2) to explore reasons underlying model uncertainties in simulating tropical and extratropical climate. My dissertation comprises four individual projects.
Next Generation Earthquake Monitoring: Harnessing Deep Learning for Enhanced Seismic Phase Detection and Association
As seismology enters the era of big data, the exponential growth in data volume and processing needs surpasses the capacity of traditional seismic monitoring workflows. The recent success of machine learning applications across various scientific domains has made a paradigm shift in image processing and simple task automation. Within this context, this thesis portrays a modern earthquake monitoring workflow with deep learning integrated into different fronts.
Insights into Ozone and PM2.5 Pollution: A Case Study in Spring China and Trend Analysis across the Continental United States
Ground-level Ozone (O3) and fine particulate matters (PM
Understanding zinc incorporation in Antarctic diatom frustules
Our understanding of the composition and uptake of zinc into Southern Ocean diatom frustules has been enhanced by X-ray fluorescence (XRF) microscopy and X-ray absorption spectroscopy (XAS). These findings potentially resolve decades of debate about the close correlation of zinc and silicate in the global ocean.
A deep look into continental tectonic processes using high-resolution earthquake catalogs
According to the theory of plate tectonics, the Earth’s crust is formed by rigid blocks that move relative to each other along linear faults that bound the blocks, where most deformation occurs. But it is now recognized that plate boundaries can also be broad areas of deformation, and slowly deforming regions in plate interiors can also generate significant and destructive earthquakes.
THE Habitable Ocean World Box (HOWBOX) Model: Coupling Europa’s Thermal and Chemical Evolution
Europa, a moon of Jupiter, has evidence for a liquid water ocean in contact with a rocky mantle beneath its icy surface. Due to the presence of this ocean, Europa has been a primary target for investigations of habitability within our solar system. Europa’s ocean has remained liquid, in part, due to tidal heating in the interior.