The Inner-Shelf Dynamics Experiment

View More View Less
  • 1 Department of Civil and Environmental Engineering, University of Washington,Seattle, WA
  • 2 College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR
  • 3 School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA
  • 4 Scripps Institution of Oceanography, University of California, San Diego, San Diego, CA
  • 5 Applied Physics Laboratory, University of Washington, Seattle, WA
  • 6 Scripps Institution of Oceanography, University of California, San Diego, San Diego, CA
  • 7 Ocean Sciences Division, U.S. Naval Research Laboratory, Stennis Space Center, MS
  • 8 Department of Marine Science, University of Otago, Dunedin, New Zealand
  • 9 Scripps Institution of Oceanography, University of California, San Diego, San Diego, CA
  • 10 Sofar Ocean Technologies, San Francisco, CA
  • 11 School of Civil and Construction Engineering, Oregon State University, Corvallis, OR
  • 12 Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL
  • 13 College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR
  • 14 Scripps Institution of Oceanography, University of California, San Diego, San Diego, CA
  • 15 Scripps Institution of Oceanography, University of California, San Diego, San Diego, CA
  • 16 School of Civil and Construction Engineering, Oregon State University, Corvallis, OR
  • 17 Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL
  • 18 College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR
  • 19 Applied Physics Laboratory, University of Washington, Seattle, WA
  • 20 Ocean Sciences Department, University of California, Santa Cruz, CA
  • 21 Scripps Institution of Oceanography, University of California, San Diego, San Diego, CA
  • 22 National Research Council, Research Associateship Program, Ocean Sciences Division, U.S. Naval Research Laboratory, Stennis Space Center, MS
  • 23 Scripps Institution of Oceanography, University of California, San Diego, San Diego, CA
  • 24 Scripps Institution of Oceanography, University of California, San Diego, San Diego, CA
  • 25 College of Earth, Ocean and Atmospheric Sciences, Oregon State University, Corvallis, OR
  • 26 Department of Oceanography, Naval Postgraduate School, Monterey, CA
  • 27 Scripps Institution of Oceanography, University of California, San Diego, San Diego, CA
  • 28 Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL
  • 29 School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA
  • 30 Scripps Institution of Oceanography, University of California, San Diego, San Diego, CA
  • 31 Scripps Institution of Oceanography, University of California, San Diego, San Diego, CA
  • 32 Sofar Ocean Technologies, San Francisco, CA
  • 33 Scripps Institution of Oceanography, University of California, San Diego, San Diego, CA
  • 34 School of Civil and Construction Engineering, Oregon State University, Corvallis, OR
  • 35 School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, United States
  • 36 Scripps Institution of Oceanography, University of California, San Diego, San Diego, CA
  • 37 Center for Southeastern Tropical Advanced Remote Sensing, University of Miami, Miami, FL
  • 38 Department of Oceanography, Naval Postgraduate School, Monterey, CA
  • 39 Department of Civil and Environmental Engineering, University of Washington,Seattle, WA
  • 40 Scripps Institution of Oceanography, University of California, San Diego, San Diego, CA
  • 41 Ocean Sciences Department, University of California, Santa Cruz, CA
  • 42 Naval Research Laboratory, Monterey, CA
  • 43 Department of Oceanography, Naval Postgraduate School, Monterey, CA
  • 44 Applied Physics Laboratory, University of Washington, Seattle WA
  • 45 Scripps Institution of Oceanography, University of California, San Diego, San Diego, CA
  • 46 Ocean Sciences Division, U.S. Naval Research Laboratory, Stennis Space Center, MS
  • 47 Ocean Sciences Division, U.S. Naval Research Laboratory, Stennis Space Center, MS
  • 48 College of Earth, Ocean and Atmospheric Sciences, Oregon State University, Corvallis, OR
  • 49 College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR
  • 50 Water Power Technologies, Sandia National Laboratories,Albuquerque, NM
© Get Permissions
Full access

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.

Current affiliation: National Center for Atmospheric Research, Boulder, CO

Physics and Physical Oceanography Department, University ofNorth Carolina,Wilmington,Wilmington, NC

Helmholtz-Zentrum Geesthacht, Institute of Coastal Research, Geesthacht, Germany

*Corresponding author: James Lerczak, jim.lerczak@oregonstate.edu

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.

Current affiliation: National Center for Atmospheric Research, Boulder, CO

Physics and Physical Oceanography Department, University ofNorth Carolina,Wilmington,Wilmington, NC

Helmholtz-Zentrum Geesthacht, Institute of Coastal Research, Geesthacht, Germany

*Corresponding author: James Lerczak, jim.lerczak@oregonstate.edu
Save