CASPO seminar: Natalie Freeman (SIO), "Recent and projected variability of physical and biogeochemical fronts in the Southern Ocean and implications for biogeography"

03/21/2018 - 3:30pm

As a way of introducing myself as a new SIO postdoc, I'll highlight some of my PhD work on three of the Southern Ocean's large-scale physical and biogeochemical features: the Antarctic Polar Front (PF), Silicate Front (SF), and Great Calcite Belt, from a remote sensing and modeling perspective. Has the PF shifted meridionally in recent decades? How does front variability impact local biogeochemistry, including the biogeography of calcifying and silicifying phytoplankton? How is the SF projected to change in a warmer world? These are a few of the questions we'll explore. I'll also introduce some of the research I'm pursuing during my postdoc. We use in situ samples from the year-round Drake Passage Time-series (DPT) in combination with the Scripps High Resolution XBT (HRX) program and output from the data-assimilating Biogeochemical Southern Ocean State Estimate (B-SOSE) to better understand physical and biogeochemical co-variability in the Drake Passage.

For more information on this event, contact: 
Manuel Gutierrez Villanueva
Event Calendar: 
101 Nierenberg Hall