Christopher Harper (he/him)
Tagline:Earth Science PhD, University of Oregon, NSF EAR-Postdoctoral Fellow (2025-2027 )
Eugene, Oregon, USA
About Me
I am a recent PhD graduate from the University of Oregon, Department of Earth Science, working with Leif Karlstrom as an NSF EAR-postdoctoral fellow. My research focuses on emergent phenomena in dense granular flows and extracting reliable statistics from unreliable volcanic records. As an NSF-EAR Postdoctoral Fellow, my current work centers on the latter, where I aim to quantify the informational limits of eruption chronologies and develop methods for comparing records across diverse temporal resolutions and levels of preservation.
Beyond research, I enjoy cooking, reading fiction, and drinking coffee with my partner and two cats.
Publications
Geometric Origin of Macroscopic Alignment in Granular Flows
Journal ArticlePublisher:Physical Review ResearchDate:2026Authors:Christopher HarperEric CP BreardGeorge W BergantzPJ ZrelakDescription:Simple microscopic geometric controls on macroscopic granular behavior
Role of compressional dynamics in setting the scale-dependent rheology of granular flows: An explanation for the emergence of thin layer stability
Journal ArticlePublisher:Physical Review EDate:2025Authors:Christopher HarperJosef DufekEric BreardDescription:Locating the origins of emergent phenomena in granular flows through particle deformation
A Novel Area-Based Methodology to Deriving an Intrinsic Length Scale of Clustering for Variety of Volcanic Fields
Journal ArticlePublisher:Bulletin of VolcanologyDate:2024Authors:Rebecca BussardChris HarperKathy CashmanLeif KarlstromDescription:Voronoi tessellation-based method for characterizing volcanic fields.
Education
PhD
from: 2018, until: 2025Field of study:Earth ScienceSchool:University of OregonLocation:Eugene, Oregon
Bachelor of Science
from: 2010, until: 2015Field of study:Applied MathematicsSchool:Georgia TechLocation:Atlanta, Georgia
Bachelor of Science
from: 2010, until: 2015Field of study:Applied Language and Intercultural Studies (Chinese)School:Georgia TechLocation:Atlanta, Georgia
Research Interests
- Granular Physics
- Volcanic Systems
- Emergent Phenomenon
- Probability, Stochastics, and Statistics