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Jahn, Alexandra Assistant 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 isotopes, and paleoclimate modeling. In her work, one of Dr. Jahn aims is to improve the comparability of climate models and observations through model developments, for example the addition of isotopes to climate models. Another main research foci of Dr. Jahn's work is to understand the role of natural variability versus forced trends in the Arctic ocean and sea ice system during the 20th and 21st century.

keywords

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

Publications

selected publications

Teaching

courses taught

  • ATOC 1060 - Our Changing Environment: El Nino, Ozone, and Climate
    Primary Instructor - Fall 2019
    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. Degree credit not granted for this course and GEOL 1060.
  • ATOC 4500 - Special Topics in Atmospheric and Oceanic Sciences - Upper Division
    Primary Instructor - Spring 2018 / Spring 2019
    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 prerequisites and corequisites: will vary depending on topic. 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 / Fall 2019
    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 - Spring 2018 / Spring 2019
    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.

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