Colloquia for Fall 2026

Continuity and Innovation: Advancing Earth Radiation Budget Science with the Libera Mission

September 03, 2026

Jake Gristey

Hosted by Christine Chiu

Over the last twenty years, Earth radiation budget (ERB) satellite measurements have uncovered significant Earth system change, including a doubling of Earth's energy imbalance and a persistent hemispheric albedo symmetry. In the future, ERB satellite measurements are likely to play an even more pivotal role in emerging application areas such as solar radiation management. This seminar will…

Catching Pac-Man: New Observational and Modeling Constraints on the Oxidizing Capacity of the Troposphere

August 27, 2026

Alex Turner

Hosted by Dien Wu

The hydroxyl radical (OH) is the primary oxidant in the troposphere. It governs the lifetime of methane, ozone depleting substances, and other pollutants. Despite this importance, OH remains one of the most poorly constrained quantities in atmospheric chemistry. Direct OH observations are sparse and imprecise, proxy species such as methyl chloroform are losing their utility to constrain OH,…