Where and When it is Appropriate to Apply the 210Po/210Pb Method to Calculate Particle Export; Lessons Learned From the Results of 3 GEOTRACES Cruises and Historical Measurements in the Global Ocean

Yi Tang1,2, Pere Masque3,4 and Gillian Stewart1,2, (1)CUNY Queens College, School of Earth and Environmental Sciences, Flushing, NY, United States, (2)CUNY Graduate Center, Earth and Environmental Sciences, New York, NY, United States, (3)Autonomous University of Barcelona (UAB), Barcelona, Spain, (4)Edith Cowan University, School of Natural Sciences & Centre for Marine Ecosystems Research, Perth, Australia