• Contact Info
Publications in VIVO

Toon, Owen Brian Professor


Research Areas research areas


research overview

  • We are running climate models for Earth, Mars and exoplanets. We are particularly interested in the role of clouds and aerosols in climate. Various students are investigating geo-engineering using sulfates to counter the greenhouse effect, how to solve the faint young sun problem on early Earth, how river valleys formed on ancient Mars, how aerosols behave in the atmosphere and impact climate, how the upper atmosphere is polluted by sulfur emissions and volcanic eruptions, how polar stratospheric clouds form and impact ozone, how smoke from fires may influence climate, and how the use of nuclear weapons may threaten global civilization.


  • atmospheres and climates of the Earth, Mars, Venus, Titan, exoplanets and the early Earth


selected publications


courses taught

  • ATOC 5600 - Physics and Chemistry of Clouds and Aerosols
    Primary Instructor - Spring 2018 / Spring 2019
    Examines the physics and chemistry of clouds and aerosols in the planetary atmospheres, where they impact climate, atmospheric chemistry, remote sensing and weather. Applies basic microphysical, radiative and chemical processes affecting particles to issues in current literature. Recommended prerequisite: one semester of college-level chemistry and calculus-based physics and math up through differential equations. ATOC graduate core course.
  • ATOC 6020 - Seminar in Atmospheric and Oceanic Sciences
    Primary Instructor - Spring 2018 / Fall 2018 / Spring 2019 / Fall 2019 / Spring 2020
    Studies an area of current research in the atmospheric and oceanic sciences. Students read selected papers from the literature. Students and faculty give presentations and participate in discussions. May be repeated for a total of 6 credit hours within the degree. May be repeated for a total of 3 credit hours within a semester.
  • ATOC 7500 - Special Topics in Atmospheric and Oceanic Sciences
    Primary Instructor - Fall 2018
    Acquaints students with current research in atmospheres, oceans, and climate. Topics may vary each semester. May be repeated up to 9 total credit hours. Students may register for more than one section of this course in the same semester.


awards and honors

International Activities

Other Profiles