Coastal hydrodynamic models and observations
I am part of the MOANA project, aiming to deliver open-access, high fidelity numerical circulation models to ocean stakeholders around New Zealand. The project is a collaboration between the New Zealand MetService, NIWA, academic institutions, the fishing industry, and community partners. The following example is of particle dispersion around the Otago peninsula simulated by a 250 m resolution ROMS model nested within the 5 km MOANA backbone model:
I am also involved in the Office of Naval Research funded initiative to study the inner shelf. The inner shelf is the nearshore ocean between 5 – 50 m deep. It is the section of ocean that is offshore of the surfzone (where surface waves break) and onshore of where the interior ocean is considered stress-free. The dynamics here involve many different processes and time-space scales. We have collected a high-resolution set of observations from Pt. Sal, California and are also running numerical models of the region. See more about the inner shelf project here.
Rip currents and cross-shelf exchange
Rip currents are important conduits of exchange between the land and coastal ocean. This animation is from University of Otago MSc student, Connor Davenport showing the dispersion of modelled tracers from St. Kilda beach, Dunedin.
As a post-doc with Falk Feddersen’s group at Scripps Institution of Oceanography, I worked model transient rip currents and their impact on cross-shelf exchange between the surfzone and inner shelf.
Nearshore internal waves
I did my graduate work at Oregon State University with Jack Barth. In collaboration with the ARGUS program, we made observations of onshore-propagating internal bores with both in situ and optical remote sensing platforms.