The Inner-Shelf Dynamics Experiment

The inner shelf, the transition zone between the surfzone and the midshelf, 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 September-October 2017, conducted from the midshelf, through the inner shelf, and into the surfzone near Point Sal, California. 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 midshelf 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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Author Kumar, N.
Lerczak, J. A.
Xu, T.
Waterhouse, A. F.
Thomson, J.
Terrill, E. J.
Swann, C.
Suanda, S. H.
Spydell, M. S.
Smit, P. B.
Simpson, A.
Romeiser, R.
Pierce, S. D.
de Paolo, T.
Palóczy, A.
O'Dea, A.
Nyman, L.
Moum, J. N.
Moulton, Melissa
Moore, A. M.
Miller, A. J.
Mieras, R. S.
Merrifield, S. T.
Melville, K.
McSweeney, J. M.
MacMahan, J.
MacKinnon, J. A.
Lund, B.
Di Lorenzo, E.
Lenain, L.
Kovatch, M.
Janssen, T. T.
Haney, S. R.
Haller, M. C.
Haas, K.
Grimes, D. J.
Graber, H. C.
Gough, M. K.
Fertitta, D. A.
Feddersen, F.
Edwards, C. A.
Crawford, W.
Colosi, J.
Chickadel, C. C.
Celona, S.
Calantoni, J.
Braithwaite, E. F.
Becherer, J.
Barth, J. A.
Ahn, S.
Publisher UCAR/NCAR - Library
Publication Date 2021-05-01T00:00:00
Digital Object Identifier (DOI) Not Assigned
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Topic Category geoscientificInformation
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Metadata Date 2025-07-11T16:15:53.679212
Metadata Record Identifier edu.ucar.opensky::articles:24533
Metadata Language eng; USA
Suggested Citation Kumar, N., Lerczak, J. A., Xu, T., Waterhouse, A. F., Thomson, J., Terrill, E. J., Swann, C., Suanda, S. H., Spydell, M. S., Smit, P. B., Simpson, A., Romeiser, R., Pierce, S. D., de Paolo, T., Palóczy, A., O'Dea, A., Nyman, L., Moum, J. N., Moulton, Melissa, Moore, A. M., Miller, A. J., Mieras, R. S., Merrifield, S. T., Melville, K., McSweeney, J. M., MacMahan, J., MacKinnon, J. A., Lund, B., Di Lorenzo, E., Lenain, L., Kovatch, M., Janssen, T. T., Haney, S. R., Haller, M. C., Haas, K., Grimes, D. J., Graber, H. C., Gough, M. K., Fertitta, D. A., Feddersen, F., Edwards, C. A., Crawford, W., Colosi, J., Chickadel, C. C., Celona, S., Calantoni, J., Braithwaite, E. F., Becherer, J., Barth, J. A., Ahn, S.. (2021). The Inner-Shelf Dynamics Experiment. UCAR/NCAR - Library. https://n2t.org/ark:/85065/d7639t1t. Accessed 08 November 2025.

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