Department of Earth System Science

A ‘dirty little secret’ in biological oceanography is that the depth of the productive zone in the ocean is unknown. For optical oceanographers, the depth of the euphoric zone is whatever they define it to be, and ‘1% of surface irradiance’ (usually photosynthetically active radiation, or PAR) has been the operational definition for at least [...]

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… Continue Reading The Impact of African Dust Transport on Biogeochemical Cycles in the Amazon Basin and Tropical Atlantic Ocean

Learn more about this seminar by Dr. Emily Fischer at the link provided.

Over the past three decades, observations have shown that both the Antarctic and Greenland Ice Sheets have been losing mass at an increasing rate. Glaciers and ice sheets have become today the largest contributors to sea level rise, but their contribution over the next century remains a key uncertainty in sea level rise projections. Understanding… Continue Reading ESS Seminar: Understanding and modeling interactions between the ice sheets and the climate system over the coming centuries