Modelling Morphological Response Of Large Tidal Inlet Systems To Sea Level Rise

The research presented in this work qualitatively investigates the morphodynamic response of a large tidal inlet/basin system to future relative sea level rise (RSLR) using the state-of-the-art Delft3D numerical model. Understanding the potential impacts of RSLR on these systems is a prerequisite for their sustainable management due to their rich bio-diversity and the increase in economic activities and local communities in recent decades. The adopted approach used a highly schematised model domain analogous to the Ameland inlet in the Dutch Wadden Sea. Model simulations were undertaken applying tidal and wave boundary forcings with three IPCC projected RSLR scenarios (no RSLR, low RSLR and high RSLR). Predicted inlet evolution indicated a channel/shoal pattern typically observed at the Ameland inlet. RSLR enhances the existing flood-dominance of the system leading to erosion on the ebb-tidal delta and accretion in the basin. Under the no RSLR case, resulting bed evolution of the process-based model (Delft3D) tends to agree with empirical-equilibrium relations of the ASMITA model. Application of the low RSLR scenario resulted in quite stable tidal flat evolution. Model simulations with the high RSLR scenario indicated disappearing the tidal flats over time and turning the system into a lagoon. Applying nourishment hardly compensated the RSLR induced sediment demand of tidal flat evolution.

The research presented in this work qualitatively investigates the morphodynamic response of a large tidal inlet/basin system to future relative sea level rise (RSLR) using the state-of-the-art Delft3D numerical model. Understanding the potential impacts of RSLR on these systems is a prerequisite for their sustainable management due to their rich bio-diversity and the increase in economic activities and local communities in recent decades. The adopted approach used a highly schematised model domain analogous to the Ameland inlet in the Dutch Wadden Sea. Model simulations were undertaken applying tidal and wave boundary forcings with three IPCC projected RSLR scenarios (no RSLR, low RSLR and high RSLR). Predicted inlet evolution indicated a channel/shoal pattern typically observed at the Ameland inlet. RSLR enhances the existing flood-dominance of the system leading to erosion on the ebb-tidal delta and accretion in the basin. Under the no RSLR case, resulting bed evolution of the process-based model (Delft3D) tends to agree with empirical-equilibrium relations of the ASMITA model. Application of the low RSLR scenario resulted in quite stable tidal flat evolution. Model simulations with the high RSLR scenario indicated disappearing the tidal flats over time and turning the system into a lagoon. Applying nourishment hardly compensated the RSLR induced sediment demand of tidal flat evolution.

This Proceedings contains over 260 papers on cutting-edge research presented at the eighth international Symposium on Coastal Sediment Processes, held May 11 ? 15, 2015, in San Diego, California, USA. This technical specialty conference was devoted to promoting an interdisciplinary exchange of state-of-the-art knowledge among researchers in the fields of coastal engineering, geology, oceanography, and related disciplines, with the theme of Understanding and Working with Nature. Focusing on the physical aspects of the sediment processes in various coastal environments, this Proceedings provides findings from the latest research and newest engineering applications. Sessions covered a wide range of topics including barrier islands, beaches, climate and sea level, cohesive and noncohesive sediments, coastal bluffs, coastal marsh, dredged sediments, inlet and navigation channels, regional sediment management, river deltas, shore protection, tsunamis, and vegetation-sediment interaction. Several special sessions included: Relevant science for changing coastlines: A Tribute to Gary Griggs; North Atlantic Coast Comprehensive Study and post-super-storm Sandy work; long-term coastal evolution; barrier islands of Louisiana; sea-level rise and super storms in a warming world; predicting decadal coastal geomorphic evolution; and contrasting Pacific coastal behavior with El Ni¤o Southern Oscillation (ENSO), are also featured. Contents:Keynote Addresses:Coastal Evolution and Human-Induced Sea-Level Rise: History and Prognosis (Robert J Nicholls)Addressing Local and Global Sediment Imbalances: Coastal Sediments as Rare Minerals (Dano Roelvink)Barrier Islands:Complex Responses of Barriers to Sea-Level Rise Emerging from a Model of Alongshore-Coupled Dynamic Profile Evolution (Andrew D Ashton & Jorge Lorenzo-Trueba)Deformation of an Isolated Offshore Sand Bar on Tidal Flat and Mergence with Beach Due to Waves (Toshiro San-Nami, Takaaki Uda, Shiho Miyahara & Masumi Serizawa)Beaches:Modeling Gravel Barrier Resilience During Storms with XBeach-G: The Role of Infiltration (Robert Mccall, Gerhard Masselink, Timothy Poate & Dano Roelvink)Numerical Investigation of Beach Profile Evolution Using a New Sediment Concentration Model (R Rahman, R Jayaratne, A E Tejada-Martinez & P Wang)Beach Changes Triggered by Imbalance of Longshore Sand Transport and Ground Subsidence on South Kujukuri Beach (Takaaki Uda, Ryoji Yoshida & Takahiro Todoroki)Climate and Sea Level:What Do We Do Now? (J William Kamphuis)A New Profile Fitting Approach to Estimating Beach Recession by Sea Level Rise (Wonchul Cho, Jong Sung Yoon, Dong Soo Hur & Jung L Lee)Coastal Bluffs:Evaluating Changes to Arctic Coastal Bluffs Using Repeat Aerial Photography and Structure-From-Motion Elevation Models (Ann E Gibbs, Matt Nolan & Bruce M Richmond)Puget Sound Feeder Bluff Mapping: Compiling and Completing a Sound-Wide Geomorphic Dataset (Andrea Maclennan, Jim Johannessen & Hugh Shipman)Coastal Marsh and Vegetation:Hydrodynamics and Sediment Dynamics in an Ice Covered Tidal Flat (Urs Neumeier & Colette Cheng)Mechanics of Sediment Suspension and Transport Within a Fringing Reef (Andrew W M Pomeroy, Ryan J Lowe, Marco Ghisalberti, Curt D Storlazzi, Michael Cuttler & Graham Symonds)Cohesive and Noncohesive Sediments:In-Situ Measurement of Erosion of Mixed Sand-Mud Sediments (Kevin B Briggs & J Calantoni)Stochastic Model of Fluid Mud Transport Under Wave and Current (Yasuyuki Nakagawa, Kazuo Nadaoka, Hiroshi Yagi, Yasuo Nihei & Hiroshi Uchikawa)Dredged Sediment:Numerical Model Studies to Support the Sustainable Management of Dredge Spoil Deposition in a Complex Nearshore Environment (Simon Weppe, Peter Mccomb & Lincoln Coe)Life Cycle Assessment for Dredged Sediment Placement Strategies (Matthew E Bates, Cate Fox-Lent, Linda Seymour, Ben A Wender & Igor Linkov)Inlet and Navigation Channels:A Tale of Five Harbours: Fluvial vs. Longshore Sediment Sources in Great Lakes Harbours (J Doucette & C Pinilla)Comparing Two Numerical Models in Simulating Hydrodynamics and Sediment Transport at a Dual Inlet System, West-Central Florida (Ping Wang, Jun Cheng, Mark H Horwitz & Kelly R Legault)Regional Sediment Management:Engineering with Nature: Nearshore Berm Placements At Fort Myers Beach And Perdido Key, Florida, USA (Katherine E Brutsch‚, Ping Wang, Julie D Rosati & Cheryl E Pollock)Preview Analysis to Sand Bypass System Design in the Port of Sisal, Yucat n (P E Reyes, P Salles, J L¢pez & E Casillas)River Deltas:Freshwater Vegetation Influence on Sediment Spatial Distribution in River Delta During Flood (W Nardin, D A Edmonds & S Fagherazzi)Observation of Sediment Processes of a Flood Event at the River Mouth of Tenryu, Japan with X-Band Radar and In Situ Measurements (Satoshi Takewaka, Takumi Okabe, Shigeru Kato & Shinichi Aoki)Shore Protection:Field Observations of Tidal Flow Separation at a Mega-Scale Beach Nourishment (Max Radermacher, Wilmar Zeelenberg, Matthieu De Schipper & Ad Reniers)Ecologically-Oriented Coastal Engineering: A New Approach for Bird Island Restoration and Avian Conservation at Sundown Island, Matagorada Bay, Texas (Cris Weber, Thomas Dixon, Dave Buzan, Juan Moya & Iliana Pe¤a)Tsunamis:Hindcast of Bathymetry Change in Oarai Port, Japan, Caused by the 2011 Tsunami (Yoshiaki Kuriyama, Yoshiyuki Uno & Kazuhiko Honda)Tsunami Sediment Analysis Based on Luminescence Measurement (Shinji Sato, Kanto Nishiguchi & Yusuke Yamanaka)Barrier Island of Louisiana:Mississippi River Delta Plain Barrier Island Sediment Dynamics and Implications for Managing Coastal Transgressionion (Michael D Miner, Ioannis Y Georgiou, Mark Kulp & Duncan Fitzgerald)Differential Sediment Consolidation Associated with Barrier Beach Restoration: Caminada Headland, South Louisiana (Mark R Byrnes, Chester Hedderman, Michael Hasen, P E, Harry Roberts, Syed Khalil & Steven G Underwood)Constrasting Pacific Coastal Behaviour with Enso:Constrasting Pacific Coastal Behaviour with Enso Modeling Interannual to Multi-Decadal Shoreline Rotations of Headland-Bounded Littoral Cells (Dylan Anderson & Peter Ruggiero)Wave Climate Change Associated with Enso Modoki and Tropical Expansion in Southeast Australia and Implications for Coastal Stability (Thomas R Mortlock & Ian D Goodwin)Long Term Coastal Evolution:Predicting Centuries of Morphodynamics in San Pablo Bay, California: Hindcast and Forecast Including Sea Level Rise (Mick van der Wegen, Bruce E Jaffe & Dano Roelvink)Modelling Long-Term Morphodynamics in Practice: Uncertainties and Compromises (J J Williams, T Conduch‚ & L S Esteves)North Atlantic Coast Comprehensive Study and Post Supper Storm Sandy Work:Modeling the Effects of Hard Structures on Dune Erosion and Overwash ? A Case Study of the Impact of Hurricane Sandy on the New Jersey Coast (C M Nederhoff, Q J Lodder, M Boers, J P Den Bieman & J K Miller)Conceptual Regional Sediment Budget for the US North Atlantic Coast (Julie Dean Rosati, Ashley E Frey, Alison S Grzegorzewski, Coraggio Maglio, Andrew Morang & Robert C Thomas)Predicting Decadal Coastal Geomorphic Evolution:Decadal Scale Shoreline Change Arises from Large-Scale Interactions, While Small-Scale Changes are Forgotten: Observational Evidence (A B Murray, E D Lazarus, L J Moore, J Lightfoot, A D Ashton, D E Mcnamara & K Ells)Equilibrium-Based Foreshore Beach Profile Change Model for Long-Term Data (Masayuki Banno, Yoshiaki Kuriyama & Noriaki Hashimoto)Relevant Science for Changing Coastline a Tribute to Gary Griggs:Quantifying the Geomorphic Resiliency of Barrier Island Beaches (Cheryl J Hapke, Owen T Brenner & Rachel E Henderson)Sedimentology of Intertidal Sediment Deposits After Dam Removal on a Coastal River (Ian M Miller, Andrea Ogston & Julia Dolan)Sea Level Rise and Super Storm in a Warming World:Multi-Annual Sand and Gravel Beach Response to Storms in the Southwest of England (Tim Scott, Gerd Masselink, Tim O'hare, Mark Davidson & Paul Russell)Regional Variability in Atlantic Storm Response Along the Southwest Coast of England (Gerd Masselink, Tim Scott, Daniel Conley, Mark Davidson & Paul Russell)and other papers Readership: Graduate students and research in coastal engineering. Key Features:Most up-to-date information and knowledgeBroad world-wide attendanceIn depth technical focus. These proceedings have and should continue to serve as widely used reference booksKeywords:Coastal Engineering;Coastal Geology;Coastal Processes;Shore Protection;Sediment Transport;Beach Processes;Coastal Morphology

The book provides a comprehensive and up-to-date overview of the physical processes which, according to the present state of knowledge, determine the evolution of coastal systems and their response to human interventions. This response depends to a large degree on the self-organising properties of coastal dynamics, which form a leading theme throughout the book. The basic theoretical ideas are explained in text and figures and also in formulas for the more mathematically inclined reader. Theories are illustrated with examples from estuaries, coastal lagoons, beaches and tidal flat systems from all over the world. The rules and simple models can be used directly without relying on complex computations; much attention is given to the strengths and weaknesses of the underlying theories and their limits of applicability. The book is fully self-contained; some knowledge of basic physics and mathematics is recommended. The book is an upgrade of the first edition. Most parts are rewritten and chapters are added to incorporate research results, new insight and experience of the past ten years. This book is intended for everyone interested in coastal systems for professional or educational reasons.

Process-based morphodynamic modelling is one of the relatively new tools at the disposal of coastal scientists, engineers and managers. On paper, it offers the possibility to analyse morphological processes and to investigate the effects of various measures one might consider to alleviate some problems. For these to be applied in practice, a model should be relatively straightforward to set up. It should be accurate enough to represent the details of interest, it should run long enough and robustly to see the real effects happen, and the physical processes represented in such a way that the sediment generally goes in the right direction at the right rate. Next, practitioners must be able to judge if the patterns and outcomes of the model are realistic and finally, translate these colour pictures and vector plots to integrated parameters that are relevant to the client or end user. In a nutshell, this book provides an in-depth review of ways to model coastal processes, including many hands-on exercises.

This handbook is the definitive reference for the interdisciplinary field that is ocean engineering. It integrates the coverage of fundamental and applied material and encompasses a diverse spectrum of systems, concepts and operations in the maritime environment, as well as providing a comprehensive update on contemporary, leading-edge ocean technologies. Coverage includes an overview on the fundamentals of ocean science, ocean signals and instrumentation, coastal structures, developments in ocean energy technologies and ocean vehicles and automation. It aims at practitioners in a range of offshore industries and naval establishments as well as academic researchers and graduate students in ocean, coastal, offshore and marine engineering and naval architecture. The Springer Handbook of Ocean Engineering is organized in five parts: Part A: Fundamentals, Part B: Autonomous Ocean Vehicles, Subsystems and Control, Part C: Coastal Design, Part D: Offshore Technologies, Part E: Energy Conversion

This book presents chapters, written by leading coastal scientists, which collectively depict the current understanding of the processes that shape barrier islands and barrier spits, with an emphasis on the response of these landforms to changing conditions. A majority of the world’s population lives along the coast at the dynamic intersection between terrestrial and marine ecosystems and landscapes. As narrow, low-lying landforms, barriers are especially vulnerable to changes in sea level, storminess, the geographic distribution of grass species, and the rate of sand supply—some barriers will undergo rapid changes in state (e.g., from landward migrating to disintegrating), on human time scales. Attempts by humans to prevent change can hasten the loss of these landforms, threatening their continued existence as well as the recreational, financial and ecosystem service benefits they provide. Understanding the processes and interactions that drive landscape response to climate change and human actions is essential to adaptation. As managers and governments struggle to plan for the future along low-lying coasts worldwide, and scientists conduct research that provides useful guidance, this volume offers a much-needed compilation for these groups, as well as a window into the science of barrier dynamics for anyone who is generally interested in the impacts of a changing world on coastal environments.

Climate change is having an increasing impact on coastal, estuarine, and marine environments worldwide. This book provides state-of-the-art coverage of climate change effects on estuarine ecosystems from local, regional, and global perspectives. With editors among the most noted international scholars in coastal ecology and estuarine science and contributors who are world-class in their fields, the chapters in this volume consist of comprehensive studies in coastal, estuarine and marine sciences, climate change, and coastal management and provide an extensive international collection of data in tabular, illustrated, and narrative formats useful for coastal scientists, planners, and managers. Comprised of three sections: (1) physical-chemical aspects; (2) biological aspects; and (3) management aspects, the book not only examines climatic and non-climatic drivers of change affecting coastal, estuarine, and marine environments but also their interactions and effects on populations of organisms, communities, habitats, and ecosystem structure and function. Pulling together today’s most salient issues and key literature advances for those concerned with coastal management, it allows the reader to see across direct and indirect interactions among disciplinary and ecosystem boundaries. Climate Change and Estuaries meets the research needs of climate scientists, estuarine and marine biologists, marine chemists, marine geologists, hydrologists, and coastal engineers, while students, professors, administrators, and other professionals will also find it an exhaustive reference.