Kumar, N., J. A. Lerczak, T. Xu, A. F. Waterhouse, J. Thomson, E. J. Terrill, C. Swann, S. H. Suanda, M. S. Spydell, P. B. Smit, A. Simpson, R. Romeiser, S. D. Pierce, T. de Paolo, A. Palˇczy, A. O'Dea, L. Nyman, J. N. Moum, M. Moulton, A. M. Moore, A. J. Miller, R. S. Mieras, S. T. Merrifield, K. Melville, J. M. McSweeney, J. MacMahan, J. A. MacKinnon, B. Lund, E. Di Lorenzo, L. Lenain, M. Kovatch, T. T. Janssen, S. Haney, M. C. Haller, K. Haas, D. J. Grimes, H. C. Graber, M. K. Gough, D. A. Fertitta, F. Feddersen, C. A. Edwards, W. Crawford, J. Colosi, C. C. Chickadel, S. Celona, J. Calantoni, E. F. Braithwaite III, J. Becherer, J. A. Barth and S. Ahn, 2021:

The Inner-Shelf Dynamics Experiment.


Bulletin of the American Meteorological Society, 102, E1033-E1063.

Abstract. The inner shelf, the transition zone between the surf zone and the mid shelf, is a dynamically complex region with the evolution of circulation and stratification driven by multiple physical processes. Cross-shelf exchange through the inner shelf has important implications for coastal water quality, ecological connectivity, and lateral movement of sediment and heat. The Inner-Shelf Dynamics Experiment (ISDE) was an intensive, coordinated, multi-institution field experiment from Sep.-Oct. 2017, conducted from the mid shelf, through the inner shelf and into the surf zone near Point Sal, CA. Satellite, airborne, shore- and ship-based remote sensing, in-water moorings and ship-based sampling, and numerical ocean circulation models forced by winds, waves and tides were used to investigate the dynamics governing the circulation and transport in the inner shelf and the role of coastline variability on regional circulation dynamics. Here, the following physical processes are highlighted: internal wave dynamics from the mid shelf to the inner shelf; flow separation and eddy shedding off Point Sal; offshore ejection of surfzone waters from rip currents; and wind-driven subtidal circulation dynamics. The extensive dataset from ISDE allows for unprecedented investigations into the role of physical processes in creating spatial heterogeneity, and nonlinear interactions between various inner-shelf physical processes. Overall, the highly spatially and temporally resolved oceanographic measurements and numerical simulations of ISDE provide a central framework for studies exploring this complex and fascinating region of the ocean.

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