Young Coastal Scientists and Engineers Conference – Americas CONFERENCE AGENDA Dauphin Island Sea Lab, Alabama, USA August 21­23, 2017 4th Young Coastal Scientists and Engineers Conference – Americas Dauphin Island Sea Lab, Alabama, USA, August 21­23, 2017 Arrival: Sunday August 20 Check in AFTER 4PM at Dauphin Island Sea Lab Faculty House #1 (on map: 18.1 ­ Greeters House) Campus map: http://www.disl.org/images/uploads/Facilities_Map_2016.pdf 7:00 pm – Informal gathering under Horizon Hall ______________________________________________________________________________ Day 1: Monday, August 21 (All conference talks are held in the Shelby Auditorium) 8:00 am – Continental breakfast in Auditorium Atrium 8:30 am – Opening remarks Kelly Dorgan, Dauphin Island Sea Lab Allison Penko, U.S. Naval Research Laboratory Meg Palmsten, U.S. Naval Research Laboratory 8:50 am – Keynote Lecture Hilary Stockdon, U.S. Geological Survey Today’s Scientists Solving Tomorrow’s Problems 9:30 am – Session 1 – Estuaries and tidal environments Jeff Coogan, Role of wind forcing on estuary length and circulation in a river­dominated, microtidal estuary, Mobile Bay Braulio Juarez, Wind­driven flow in a coastal plain estuary Steven L. Dykstra, Spatial Variability of Tides due to Discharge Gisselle E. Guerra, Saltwater intrusion in a subtropical estuary, as predicted by a Markov­chain model 10:30 am – Break 10:45 am – Session 2 – Estuaries and waves Katherine M. Haynes, Field measurements of boat wake attenuation in coastal salt marshes Jin Young Kim, Retreat of Galveston Bay Wetlands by Wind Induced Waves Aaron Kenny, A Laboratory Study on Mangrove Forest Wave Attenuation for use in Living Shorelines William J. Pringle, Large scale tidal dynamics modelling in the Indian and Western Pacific Ocean Basins 12:00 pm – Lunch at May’s Café and eclipse watching 2 4th Young Coastal Scientists and Engineers Conference – Americas Dauphin Island Sea Lab, Alabama, USA, August 21­23, 2017 2:00 pm – Session 3 – Structures and restoration Lila J. Lasecki, D’Olive Creek restoration Caleb Barth, Incorporation of Structural reliability assessment into upgrade and renewal decisions for port and marine structures Justin A. Bartusek, Barbours Cut Dock Expansion & San Jacinto Marsh Restoration Project Victoria Curto, Mobile Bay Bridge storm surge impact analysis 3:00 pm – Break 3:15 pm – Session 4 – Beach nourishment and living shorelines Katie Finegan, Town of Oak Island Feasibility Study: A Case for Combining Beach and Inlet Issues Into an Overall Management Program Brittany E. McMillan, Life cycle cost analyses of beach nourishment on Dauphin Island, AL Joshua Todd, Living Shoreline Demonstration Project – Recent Experience on Design and Construction 4:00 pm – Industry Talk Kevin Frost, Nortek USA, Boston, USA 5:00 pm – Icebreaker, under DISL classrooms 6:30 pm – Shrimp boil at May’s Café and beach party ______________________________________________________________________________ Day 2: Tuesday, August 22 8:00 am – Continental breakfast in Auditorium Atrium 8:45 am – Keynote Lecture Stephanie Smallegan, University of South Alabama Engineering the pathway to a resilient barrier island under sea level rise 9:30 am – Session 5 ­ Sediment transport Yeulwoo Kim, An Eulerian three­phase model for sheet flow under breaking waves Meagan E. Wengrove, University of New Hampshire, Do sand ripples matter to larger coastal change? Ryan S. Mieras, Large­scale experimental observations of wave­induced sediment transport over a surf zone sandbar 3 4th Young Coastal Scientists and Engineers Conference – Americas Dauphin Island Sea Lab, Alabama, USA, August 21­23, 2017 Tynon Briggs, Calculating aeolian sediment dynamics relative to varying concentrations of the gravel lag 10:30 am – Break 10:45 am – Session 6 – Sediment transport Tongtong Xu, Exploring the influence of obliquely oriented shoreface­connected ridges on alongshore sediment transport and shoreline change Huidi Liang, Influence of land reclamation projects on sediment transport process of channel­shoal system Munitions Mobility Demetra Cristaudo, Preliminary results of a munition mobility study in the swash Stephanie E. Gilooly, Resolving the Role of the Dynamic Pressure in the Burial, Exposure, Scour, and Mobility of Underwater Munitions 12:00 pm – Lunch at May’s Café 2:00 pm – Professional Development Activity Allison Penko, U.S. Naval Research Laboratory Communicating Science: The Elevator Pitch and Speed Networking 3:15 pm – Session 7 ­ Beach morphology Cody L. Johnson, Morphological Modeling of Low­Dune Barrier System Changes due to Hurricane Forcing Youn­Kyung Song, Numerical Simulation of Ridge Evolution based on Field Data from a Steep Meso­Tidal Engineered Beach Jose C. Tuz­Pech, Impact of a permeable groyne field on littoral transport: an experimental study 4:00 pm – Break 4:15 pm – Session 8 – Coastal geology Robert Hollis, Constraining Holocene evolution of the Petit Bois Island System Nina Schulze, Holocene evolution and sediment provenance of Horn Island, Mississippi Clayton Dike, Late Quarternary paleochannels and deltas along the Mississippi­Alabama shelf 5:00 pm – Industry Talk Doug Shillinger, RBR Limited, Ottawa, Canada 6:00 pm – Dinner at The Estuarium 4 4th Young Coastal Scientists and Engineers Conference – Americas Dauphin Island Sea Lab, Alabama, USA, August 21­23, 2017 ______________________________________________________________________________ Day 3: Wednesday, August 23 8:00 am – Continental breakfast in Auditorium Atrium 8:30 am – Keynote Lecture Brian Dzwonkowski, Dauphin Island Sea Lab Impacts of river discharge on the coastal environment: Perspectives from a long­term mooring system in the Mississippi Bight 9:15 am – Session 9 – Waves & Turbulence Liangyi Yue, University of Delaware, A high performance pseudo­spectral solver for turbulent flow Ling Zhu, Louisiana State University, Attenuation of nonlinear waves by rigid vegetation: Comparison of different wave theories Byoungjoon Na, Effect of void fraction to energy dissipation in deep water plunging breaking waves Rafael Mezo­Padilla, Hydrodynamic circulation on the western gulf of mexico using self­organizing maps 10:15 am – Break 10:30 am – Session 10 – Waves Ramy Y. Marmoush, Laboratory experiments of wave energy dissipation and longshore current generation on a sandy beach Dylan Sanderson, Use of a Probabilistic Storm Database in Monte Carlo Lifecycle Modeling Seongho Ahn, Wave energy resource assessments and a preliminary classification for US coastal waters Sarah M. Trimble, New possibilities for predicting and mitigation deadly rip currents 11:30 am – Lunch at May’s Café 1:00 pm – Group photo 1:30 pm – Session 11 – Tsunamis Wei­Liang Chuang, Pressure, force, and fluid velocity distributions due to tsunami bore impact on a simplified coastal building at various headings India Woodruff, Developing a model of the 2013 U.S. East Coast Meteotsunami 2:00 pm – Keynote speaker Scott Douglass – South Coast Engineers 5 4th Young Coastal Scientists and Engineers Conference – Americas Dauphin Island Sea Lab, Alabama, USA, August 21­23, 2017 2:45 pm – Closing remarks Jack Puleo, University of Delaware 3:30 pm – Dauphin Island geomorphology walk 6:00 pm – Dinner at Islanders THANK YOU to our 2017 sponsors!! http://www.gldd.com https://rbr­global.com http://www.nortekusa.com http://www.vtisl.com https://www.mottmac.com http://www.baird.com http://www.mbakerintl.com 6 4th Young Coastal Scientists and Engineers Conference – Americas Dauphin Island Sea Lab, University of South Alabama, August 21-23, 2017 ROLE OF WIND FORCING ON ESTUARY LENGTH AND CIRCULATION IN A RIVER-DOMINATED, MICROTIDAL ESTUARY, MOBILE BAY, AL. Jeff Coogan, University of South Alabama, [email protected] Brian Dzwonkowski, University of South Alabama, [email protected] Using long-term records (~10 years) of salinity and 300 days of ADCP data, aspects of the estuary length and salinity flux were evaluated in Mobile Bay under a range of river discharge, tidal, and wind conditions. The temporal variability in the salinity structure was represented by 1/7 the estuary length, and showed a strong relationship to river forcing of �� , similar to values reported in San Francisco Bay. In addition, local wind forcing was observed to play a significant 1/7 role in modifying this �� relationship. Estuary length responded asymmetrical to local wind with up-estuary (down-estuary) wind reducing (increasing) salinity intrusion. This system wide response was consistent with local subtidal circulation exchange flow measured by the ADCP. During down-estuary wind conditions the flow was strongly sheared, which would enhance salt intrusion. During up-estuary wind conditions, two-layer flow was reduced (and inhibited under high winds) which would impede exchange and shorten the estuary length. To further explore potential salinity transport changes associated with the wind, a 1D salinity flux was calculated using the ADCP and salinity profile data. The results suggest that the wind forcing is not changing the salt storage within the bay, but instead wind is straining the density field through lengthening and shortening the overall estuary length. These results indicate that in a shallow microtidal system, wind can play a large role in modifying the estuary length and intrusion. 4th Young Coastal Scientists and Engineers Conference – Americas Dauphin Island Sea Lab, University of South Alabama, August 21-23, 2017 Wind-driven flow in a coastal plain estuary Braulio Juarez, University of Florida, [email protected]