CD43A:
Connecting "Roughness" and "Bathymetry": Resolving the Often Unresolved Interactions Between Time-Varying Flow and Topography I


Session ID#: 37750

Session Description:
Topography in the ocean varies continuously over a wide range of length scales, from scales typically considered “roughness” to those considered “bathymetry”. Flow is also driven over topography at a range of time scales by processes such as surface and internal waves, tides, and steady currents. Interaction of flow with topography causes persistent spatial patterns in pressure, currents, and turbulence. In ocean circulation models where the domain is discretized into a finite resolution grid, some of these processes are resolved and others are not. The goal of this session is to bring together the growing number of people who are investigating flow-topography interactions at a range of spatial and temporal scales. We particularly encourage studies in shallow coastal systems such as the inner shelf and nearshore, coral reefs, and vegetation canopies. Field observations, laboratory measurements, numerical modeling, and theoretical studies that contribute to understanding this problem are all encouraged. We hope to inspire discussion about the physics of interactions between time-varying flow and topography, ways these processes are currently parameterized, and how they might be better represented.
Primary Chair:  Johanna H Rosman, University of North Carolina at Chapel Hill, Institute of Marine Sciences, Chapel Hill, NC, United States
Co-Chair:  James L Hench, Duke University, Beaufort, NC, United States
Moderators:  James L Hench, Duke University, Marine Laboratory, Nicholas School of the Environment, Beaufort, NC, United States and Steven J Lentz, Woods Hole Oceanographic Inst, Woods Hole, MA, United States
Student Paper Review Liaison:  James L Hench, Duke University, Marine Laboratory, Nicholas School of the Environment, Beaufort, NC, United States
Index Terms:

4211 Benthic boundary layers [OCEANOGRAPHY: GENERAL]
4534 Hydrodynamic modeling [OCEANOGRAPHY: PHYSICAL]
4546 Nearshore processes [OCEANOGRAPHY: PHYSICAL]
4562 Topographic/bathymetric interactions [OCEANOGRAPHY: PHYSICAL]
Cross-Topics:
  • ME - Marine Ecosystems
  • OM - Ocean Modeling
  • PS - Physical Oceanography: Mesoscale and Smaller

Abstracts Submitted to this Session:

Interaction of waves with idealized high-relief bottom roughness (309255)
Xiao Yu, University of Florida, Department of Civil and Coastal Engineering, Ft Walton Beach, FL, United States, Johanna H Rosman, Univ. N. Carolina Chapel Hill, Morehead City, NC, United States and James L Hench, Duke University, Beaufort, NC, United States

See more of: Coastal Dynamics