Nested data assimilative modeling of submesoscale variability at the Mid Atlantic Bight Pioneer Coastal Array

John Wilkin (Rutgers University, United States)

CoAuthors

Andrew Moore (University of California Santa Cruz, United States); Julia Levin (Rutgers University, United States); Hernan Arango (Rutgers University, United States)

Event: 2019 Ocean Surface Topography Science Team Meeting

Session: Science III: Mesoscale and sub-mesoscale oceanography

Presentation type: Type Poster

Using a hierarchy of three 1-way nested grids (7 km: 2.3 km: 700 m resolution) with data assimilation at each successive level of grid refinement, we capture event wise correspondence of modeled and observed features at the ocean submesoscale in the vicinity of the NSF Ocean Observatories Initiative (OOI) Pioneer Coastal Array in the Mid Atlantic Bight of the northeast U.S. We use 4-dimensional variational (4D-Var) data assimilation in the Regional Ocean Modeling System (ROMS). All available data from altimeter and temperature satellites, coastal HF-radar, and in situ platforms (moorings, gliders, Argo, drifters and vessels) are assimilated. Results focus on processes at the shelf-break where the impingement of Gulf Stream warm core ring waters drives exchange between coastal and deep-ocean water masses.
 

Poster show times:

Room Start Date End Date
The Gallery Tue, Oct 22 2019,16:15 Tue, Oct 22 2019,18:00
The Gallery Thu, Oct 24 2019,14:00 Thu, Oct 24 2019,15:45
John Wilkin
Rutgers University
United States
jwilkin@rutgers.edu