Jacob Bortnik

Upcoming Seminar

Paleoclimate data assimilation: new views of past climates

Wed, Oct 5, 2022

MSA 7124

Speaker: Jessica Tierney

Institution: University of Arizona

Abstract: Reconstructing past climates is critical for understanding the full range of Earth system responses to external forcing. The two tools available to us to undertake this task are climate models, which can be used to simulate ancient climatic conditions, and proxy data, which record climate changes through geochemical, sedimentological, or biological information. Proxy data record what actually happened, but they are not evenly distributed in time nor space and can carry large uncertainties. Models provide a full-field view of past climates, but as simulations, they are only a best guess at what might have happened, and are also subject to bias. Paleoclimate data assimilation provides a solution, as it combines these two pieces of information in order to leverage both model and proxy information. In this talk, I will review the paleoclimate data assimilation projects that our group has undertaken in the past few years and what we have learned about past and future climate change as a result.

jbortnik [at] atmos.ucla.edu

Professor

(310)825-1659

MSA 7228

https://dept.atmos.ucla.edu/jbortnik

Atmospheric and Oceanic Sciences

Campus Address

Mailing Address

Contact Information

Campus Address	Mailing Address	Contact Information
520 Portola Plaza	UCLA Atmospheric & Oceanic Sciences	Students Services Office: (310) 825-1954
Math Sciences Building 7127	Box 951565	Email: studentinfo@atmos.ucla.edu
Los Angeles, CA 90095	Los Angeles, CA 90095-1565	Phone: (310) 825-1217