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Jahn, Alexandra

Associate Professor

Positions

Research Areas research areas

Research

research overview

  • Dr. Jahn's research interests are the climate of the polar regions, particularly the Arctic Ocean, with a focus on sea ice and ocean dynamics, as well as the modeling of geotracers, including miroplastics, isotopes, and idealized tracers. In the temporal space, Dr. Jahn's research spans past climates, the historical period, and future projections of climate. She is known in particular for her work on the future decline of Arctic sea ice and on the variability and change of Arctic freshwater.

keywords

  • Arctic sea ice, Arctic ocean dynamics, Arctic microplastics, Arctic freshwater, climate modeling, paleoclimate modeling, geotracers, internal variability, carbon and water isotopes

Publications

selected publications

Teaching

courses taught

  • ATOC 1060 - Our Changing Environment: El Nino, Ozone, and Climate
    Primary Instructor - Fall 2020 / Spring 2021
    Discusses the Earth's climate for nonscience majors, focusing on the role of the atmosphere, oceans, cryosphere and land surface. Describes the water cycle, atmospheric circulations and ocean currents, and how they influence global climate, El Nino and the ozone hole. Discusses human impacts from climate change. Recommended prerequisite: ATOC 1050.
  • ATOC 3700 - Course-Based ATOC Research Experience
    Primary Instructor - Fall 2023 / Fall 2024
    In this course-based research experience in Atmospheric and Oceanic Sciences, students will learn about how scientific research works as well as gain first research experience in Atmospheric and Oceanic Sciences by working on an authentic research project. Specifically, students will learn how to understand scientific articles, how to develop subject-matter expertise, how to design a scientific research project, how to analyze and interpret data, and how to present their results to other scientists. Formerly offered as a special topics course. Recommended prerequisite: ATOC 1060 or ATOC 3600, and 1 semester of programming or equivalent self-study before the beginning of the class is required.
  • ATOC 4500 - Special Topics in Atmospheric and Oceanic Sciences - Upper Division
    Primary Instructor - Spring 2018 / Spring 2019 / Fall 2021
    Acquaints students at the upper division level with current research in atmospheres, oceans, and climate. Topics may vary each semester. May be repeated up to 18 total credit hours within the degree as long as the topic is different. Students may register for more than one section of this course in the same semester. Recommended restriction: students with 57-180 credits (Juniors or Seniors).
  • ATOC 5051 - Introduction to Physical Oceanography
    Primary Instructor - Fall 2018
    Provides fundamental knowledge of observations,, theory, dynamics and modeling in physical oceanography. Promotes critical thinking and the development of skills for data analysis and interpretation. Recommended prerequisites: one year of 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 / Spring 2021 / Fall 2021 / Spring 2022 / Fall 2023
    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.
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