Collaborative Research: An Observational and Modeling Study of the Physical Processes Driving Exchanges Between the Shelf and the Deep Ocean At Cape Hatteras

Sponsor:  National Science Foundation


University of Georgia Skidaway Institute of Oceanography: Catherine Edwards, Dana Savidge
University of North Carolina Chapel Hill: John Bane, Harvey Seim
Woods Hole Oceanographic Institution: Magdalena Andres, Glen Gawarkiewicz, Robert Todd

Funding period

April 2016 – March 2020


Subtropical and subpolar oceanic gyre boundaries are characterized by confluent western boundary currents and convergence in the adjacent shelf and slope waters. Together, they lead to large net export of shelf waters to the deep ocean, and complex, bidirectional shelf-deep ocean exchange, in response to strong forcing typical of midlatitude western ocean margins. Shelf-deep ocean exchange processes at such dynamic sites remain poorly understood, due in part to the technical challenge of resolving broad ranges of relevant spatial and temporal scales. This project will deploy fixed, mobile, and remote observational platforms in combination with idealized and realistic numerical simulations to investigate exchange processes near Cape Hatteras. The sampling array will provide unprecedented temporal and spatial resolution in a region of large episodic export and exchange


Work is in progress.

This web site explains the project to the public.


Article in the Coastal Review Online


Andres, M. (2016) On the recent destabilization of the Gulf Stream path downstream of Cape Hatteras, Geophys. Res. Lett., 43, doi: 10.1002/2016GL069966 [PDF] [Supplement]

Zeng, X. and R. He (2016) Gulf Stream variability and a triggering mechanism of its large meander in the South Atlantic Bight, Journal of Geophysical Research – Oceans, 121, doi: 10.1002/2016JC012077 [PDF]