The inaugural Southern California Biogeochemical Ocean Observations & Models (SoCal BOOM) symposium will be held on Saturday March 21, 2020 at the University of Southern California from 9AM – 8PM. The meeting aims to bring together students, postdocs, researchers, and faculty from across Southern California with an interest in measuring and modeling ocean biogeochemistry. This free one-day symposium is designed to highlight the work of early-career researchers, with both the symposium and the poster session featuring presentations by graduate students and postdoctoral researchers (with faculty encouraged to attend). The aim of this meeting is to foster interaction and collaboration among oceanographers who use measurements and modeling approaches to understand Earth systems. We welcome scientists engaged in a wide range of ocean biogeochemical research, and encourage participants to highlight aspects of their research which draw upon theoretical or numerical modeling approaches. Register by March 1, 2020.