Arlene Fiore (Peter H. Stone and Paola Malanotte Stone Professor of Earth, Atmospheric and Planetary Sciences at MIT)

Observed trends in tropospheric ozone and hydroxyl radical (OH) are shaped by the combined influence of changing climate and air pollutant emissions, as well as naturally arising climate variability. I will show how we are using initial-condition ensembles with a fully coupled chemistry-climate model to quantify trends in upper tropospheric ozone arising from anthropogenic influence and identify when and where anthropogenic signals are most detectable. I will also share highlights from an idealized chemistry-climate model that offers insights into the pathways controlling how tropospheric OH responds to surface warming.

Arlene Fiore joined the EAPS faculty in 2021 as the Peter H. Stone and Paola Malanotte Stone Professor of Earth, Atmospheric and Planetary Sciences. She attended Harvard University, earning an AB in environmental geoscience in 1997 and completing her PhD studies in Earth and planetary sciences in 2003. Fiore spent seven years as a research scientist in the NOAA Geophysical Fluid Dynamics Laboratory before being appointed to the faculty at Columbia University’s Department of Earth and Environmental Sciences and Lamont-Doherty Earth Observatory in 2011.

Fiore has a long history of professional service, including serving on the National Academy of Sciences Board on Atmospheric Sciences and Climate, multiple NCAR (National Center for Atmospheric Research) advisory panels and committees, and has authored or co-authored numerous reports on issues of air quality and climate for policymakers and government agencies. As a principal investigator and member of the NASA Health and Air Quality Applied Sciences Team, she partners with air and health management groups to address emerging needs with applications of satellite and other Earth science datasets. Among other honors, Fiore has been recognized by the American Geophysical Union with the James R. Holton Junior Scientist Award in 2005 and the James B. Macelwane Medal in 2011.