Center for Coastal Physical Oceanography & ODU Resilience Collaborative



Fall 2019 Seminar Series

"EFFECTS OF SEA LEVEL RISE ON THE SEASONAL HYPOXIA OF CHESAPEAKE BAY"

Pierre St-Laurent
CCPO/VIMS

Monday, October 21, 2019
3:30 PM
Conference Center, Innovation Research Building II
4211 Monarch Way, Norfolk, VA 23508

Abstract

The Chesapeake Bay experiences recurrent hypoxia (dissolved oxygen <2mg/L) during the summer season. The most affected zones are within a deep channel (depth 40m) with a relatively long residence time (240 days). Although multiple modeling studies have investigated future changes in the Bay's hypoxia, these studies show mixed responses to sea level rise and differences in methodology made comparisons difficult. The present study focuses on the effect of sea level on the Bay's hypoxia in absence of other climate drivers, using three numerical models in identical experiments. Sea level rise both degrades and improves dissolved oxygen concentrations with well-defined differences between regions of the Bay. The causes of these variations are examined and their implications for water quality are discussed.


Biography

Pierre St-Laurent joined CCPO as a post-doctoral research associate in 2010 to study physical ocean-ice shelf interactions in Antarctica. Over the years, he expanded his research interests to include biogeochemical processes on Antarctic continental shelves in collaboration with field researchers and CCPO modeler, M.S. Dinniman. In addition, he works in collaboration with M.A.M. Friedrichs (VIMS) on regional issues such as atmospheric nitrogen deposition and seasonal hypoxia in the Chesapeake Bay.


Reception before seminar at 3:00 PM


Old Dominion University Homepage CCPO
Innovation Research Park Building I
4111 Monarch Way, 3rd Floor
Old Dominion University
Norfolk, VA 23508
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Updated on 09/16/2019.
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