Dr. Paul Shepson's Intro to "Chacha" Before the Expedition

Video Shot in: 2022

In spring 2022, Dr. Paul Shepson and his team will conduct a field campaign on Alaska’s North Slope called “Cha-Cha.” They will study the chemical reactions in the Arctic snowpack when exposed to sunlight, which releases halogens into the atmosphere. These halogens have harmful effects on the ozone layer and impact the Arctic ecosystem. Using advanced instruments on two airplanes, the team will quantify the halogen species in the atmosphere and investigate the composition of particles and cloud water. This research aims to understand the role of sea salt particles from open ocean leads in atmospheric composition and the changing Arctic climate.