Dr. Robert Harley

Professor

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Biography

Robert Harley is the Carl W. Johnson Professor in Civil Environmental Engineering at the University of California, Berkeley. His research focuses on air quality and sustainable transportation, contributing significantly to the understanding of air pollution and its atmospheric chemistry. Harley led the development of a fuel-based approach to estimating vehicle emissions, which has influenced national and state-level emission inventories. He employs mathematical models and field experiments to investigate air pollution issues related to atmospheric chemistry and climate change. His work addresses the complexities of tropospheric ozone and fine particulate matter while also characterizing and controlling emission sources. Harley's educational background includes a Ph.D. in Environmental Engineering Science from the California Institute of Technology (1993), a Master's degree in the same field from Caltech (1988), and a Bachelor of Applied Science with honors in Engineering Science from the University of Toronto (1987).

Research Interests

Experience

Professor

— Present

University of California, Berkeley • Berkeley, CA

Inaugural holder of the Carl W. Johnson Endowed Chair in Civil Environmental Engineering, recognized for significant scholarship and professional contributions.

Requirements for University of California, Berkeley

Doctorate Program
Requirements
GPA Requirement
Required:3
GRE Subject
Overall Score
Required:500
Overall
Required:500
TOEFL
Total
Required:90
IELTS
Overall
Required:7
Prerequisites
Bachelor's degree or recognized equivalent Preparation comparable to undergraduate major at Berkeley in Mathematics or Applied Mathematics 2 full years lower-division work (Calculus, Linear Algebra, Differential Equations, Multivariable Calculus) 8 one-semester upper-division courses (Real Analysis, Complex Analysis, Abstract Algebra, Linear Algebra)
Application Checklist
  • Graduate Application
  • Statement of Purpose
  • Personal History Statement
  • Three Letters of Recommendation
  • Unofficial Transcripts
  • C.V./Resume
  • Course and Textbook List
Specialization Notes

The Mathematics Subject GRE is required for the Fall 2026 admissions cycle. General GRE is optional.