African dust is transported to the Amazon Basin and the Tropical Atlantic Ocean in the winter and spring where it can deposit vital nutrients that stimulate primary productivity and help facilitate the drawdown of atmospheric carbon dioxide. Despite interest in this topic and its potential importance for Earth’s climate, few measurements exist to document this phenomenon and quantify its impacts on biogeochemical cycles. Here Dr. Cassandra Gaston will discuss aerosol measurements collected at a site in Cayenne, French Guiana located on the coast of the Tropical Atlantic Ocean that also sits at the gateway to the Amazon Basin.

Zoom link provided below.