Dr. Ryan Sullivan

Professor

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Biography

Ryan Sullivan is a Professor in the Department of Chemistry at Carnegie Mellon University, with a courtesy appointment in the Department of Mechanical Engineering. His research focuses on atmospheric analytical chemistry, emphasizing single-particle analysis and heterogeneous kinetics, as well as cloud nucleation. He is engaged in developing improved aircraft-deployable analytical instrumentation to characterize individual particles in the atmosphere in real-time. His work involves studying the physicochemical properties of atmospheric particles that are emitted from various sources and understanding the chemical processes that influence atmospheric transport, impacting cloud formation and the Earth's climate. Sullivan's research endeavors include equal parts instrument development, laboratory experiments, and field measurements, making significant contributions to the field of atmospheric science.

Research Interests

Requirements for Carnegie Mellon University

Doctorate Program
Requirements
GPA Requirement
Required:3.5
GRE General
Verbal
Required:158
Quantitative
Required:149
Analytical Writing
Required:4
Overall
Required:4
Prerequisites
Bachelor's degree in Psychology or related field Research experience/publications
Application Checklist
  • Online application
  • Statement of Purpose
  • Three letters of recommendation
  • Transcripts
  • GRE scores (optional but reported in profile)
  • English Proficiency (TOEFL/IELTS/Duolingo)
Specialization Notes

Admission is extremely competitive with no strict GPA cut-offs; holistic review is used.