Backbarrier Sedimentation and Inlet Induced Shoreline Change Associated with a Migrating Tidal Inlet PDF Download
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Author: Christopher William Freeman
Publisher:
ISBN:
Category : Inlets
Languages : en
Pages : 204
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Book Description
Author: Christopher William Freeman
Publisher:
ISBN:
Category : Inlets
Languages : en
Pages : 204
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Book Description
Author: P. Bruun
Publisher: Elsevier
ISBN: 0444598243
Category : Science
Languages : en
Pages : 529
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Book Description
Developments in Geotechnical Engineering, 23: Stability of Tidal Inlets: Theory and Engineering focuses on all aspects related to tidal inlets on littoral drift shores where freshwater flow is small or non-existing. The selection first tackles the development and configuration of tidal inlets and inlet hydraulics. Discussions focus on flow dynamics and nearshore transport, combinations of waves and currents, sediment transport and storage in the tidal entrance, offsets of tidal inlets, natural inlet regimen, migration of inlets, and origin of tidal inlets. The manuscript then examines sediment transport in tidal inlets, stability of tidal inlets on littoral drift shores, and design and improvements of coastal inlets. Topics cover ocean entrance, overall stability condition, hydraulic and sedimentary principles, non-scouring channels, transport of sediments in wave agitated waters, and sediment transport by combined wave and current action. The publication explores improvements by structures, including natural bypassing, types of improvement, and bypassing by structures and bypassing plants or arrangements. The selection is a valuable source of data for researchers interested in the stability of tidal inlets.
Author: David G. Aubrey
Publisher: Springer Science & Business Media
ISBN: 1475740573
Category : Science
Languages : en
Pages : 468
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Book Description
Along much of the shoreline of the world, tidal inlets play an important role in nearshore processes, providing links between the coastal oceans and protected embayments. Their study is of particular importance not only for the understanding of fundamental processes in coastal oceanography but also for engineering and the proper management of the delicate equilibrium of our shorelines. This volume, based on the International Symposium on Hydrodynamics and Sediment Dynamics of Tidal Inlets held at Woods Hole, MA, presents the reader with an overview of contemporary research on these important features. The coverage includes: - mathematical modelling, including a review of inlet hydrodynamics, - observations on hydrodynamics, - sedimentology and morphology, - tidal deltas, - processes and policies pertaining to sedimentation, and the - impacts of shore protection and dredging in beaches.
Author: M. Schwartz
Publisher: Springer Science & Business Media
ISBN: 1402038801
Category : Science
Languages : en
Pages : 1243
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Book Description
This new Encyclopedia of Coastal Science stands as the latest authoritative source in the field of coastal studies, making it the standard reference work for specialists and the interested lay person. Unique in its interdisciplinary approach. This Encyclopedia features contributions by 245 well-known international specialists in their respective fields and is abundantly illustrated with line-drawings and photographs. Not only does this volume offer an extensive number of entries, it also includes various appendices, an illustrated glossary of coastal morphology and extensive bibliographic listings.
Author: David G. Aubrey
Publisher:
ISBN:
Category : Inlets
Languages : en
Pages : 120
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Book Description
Various aspects of sediment transport in and around natural, unstructured tidal inlets were investigated over the two year period of study. Concentrating on two tidal inlets (Nauset Inlet and Popponesset Inlet, Cape Cod, MA), and combining detailed field observations with numerical model studies of tidal flows in inlet/estuarine environments, several aspects of tidal inlet behavior have been clarified. In addition, field work has resulted in a number of technical publications of general utility to a wide spectrum of coastal research interest. Primary scientific items addressed in this study include: 1) diagnostic numerical model of generation and propagation of tidal non-liniarities in shallow estuarine channels; 2) effects of flow curvature on tidal inlet sediment transport; 3) definition of mechanisms by which tidal inlets migrate in a direction opposite to the net littoral drift direction; 4) hypothesis of a mechanism for rapid barrier spit growth in locations with low rates of littoral transport; 5) clarification of long-term patterns of sea-level rise in the United States to assess its role in tidal inlet/esturarine evolution; 6) historical descriptions of massive inlet migration at two study inlets as supporting evidence for the inlet modeling studies. Technical information generated by the study includes a description of a low-cost, reliable method to join nearshore electrical cables; description and intercomparison of instrumentation and analysis routines for estimating directional spectral parameters from wave gage data; and development of a field system and laboratory analysis package for preparing accurate bathymetric charts in shallow, nearshore regions, using microwave navigation and precision echo-sounding.
Author: Ping Wang
Publisher: Cambridge University Press
ISBN: 110880425X
Category : Science
Languages : en
Pages : 388
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Book Description
Beaches, barrier islands and tidal inlets are valuable coastal resources and provide desirable environments that are often densely populated. They are dynamic landforms that change constantly, driven by both normal processes and energetic storms. They behave as one interconnected system and must be understood and managed as such. This book discusses their various morphologic features, as well as the processes that shape them and future challenges due to environmental change. A major focus is placed on the interaction between sandy beaches and tidal inlets, and the sediment exchange among various morphologic features. Balancing these valuable sediment resources while maintaining the natural sediment exchange constitutes a major goal of modern shore protection and coastal management. Illustrated with numerous aerial photographs to demonstrate how beaches and tidal inlets interact, this book provides a valuable reference for graduate students, researchers and professionals working in coastal management and geomorphology.
Author:
Publisher: Academic Press
ISBN: 0080885225
Category : Science
Languages : en
Pages : 6392
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Book Description
The changing focus and approach of geomorphic research suggests that the time is opportune for a summary of the state of discipline. The number of peer-reviewed papers published in geomorphic journals has grown steadily for more than two decades and, more importantly, the diversity of authors with respect to geographic location and disciplinary background (geography, geology, ecology, civil engineering, computer science, geographic information science, and others) has expanded dramatically. As more good minds are drawn to geomorphology, and the breadth of the peer-reviewed literature grows, an effective summary of contemporary geomorphic knowledge becomes increasingly difficult. The fourteen volumes of this Treatise on Geomorphology will provide an important reference for users from undergraduate students looking for term paper topics, to graduate students starting a literature review for their thesis work, and professionals seeking a concise summary of a particular topic. Information on the historical development of diverse topics within geomorphology provides context for ongoing research; discussion of research strategies, equipment, and field methods, laboratory experiments, and numerical simulations reflect the multiple approaches to understanding Earth’s surfaces; and summaries of outstanding research questions highlight future challenges and suggest productive new avenues for research. Our future ability to adapt to geomorphic changes in the critical zone very much hinges upon how well landform scientists comprehend the dynamics of Earth’s diverse surfaces. This Treatise on Geomorphology provides a useful synthesis of the state of the discipline, as well as highlighting productive research directions, that Educators and students/researchers will find useful. Geomorphology has advanced greatly in the last 10 years to become a very interdisciplinary field. Undergraduate students looking for term paper topics, to graduate students starting a literature review for their thesis work, and professionals seeking a concise summary of a particular topic will find the answers they need in this broad reference work which has been designed and written to accommodate their diverse backgrounds and levels of understanding Editor-in-Chief, Prof. J. F. Shroder of the University of Nebraska at Omaha, is past president of the QG&G section of the Geological Society of America and present Trustee of the GSA Foundation, while being well respected in the geomorphology research community and having won numerous awards in the field. A host of noted international geomorphologists have contributed state-of-the-art chapters to the work. Readers can be guaranteed that every chapter in this extensive work has been critically reviewed for consistency and accuracy by the World expert Volume Editors and by the Editor-in-Chief himself No other reference work exists in the area of Geomorphology that offers the breadth and depth of information contained in this 14-volume masterpiece. From the foundations and history of geomorphology through to geomorphological innovations and computer modelling, and the past and future states of landform science, no "stone" has been left unturned!
Author: B. W. Flemming
Publisher: John Wiley & Sons
ISBN: 1444304143
Category : Science
Languages : en
Pages : 382
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Book Description
This IAS Special Publication contains 23 papers presented at the 3rd International Research Symposium on Modern and Ancient Clastic Tidal Deposits. This symposium series has an enviable international reputation for its quality, and so the contributions represent the latest developments in the field. The conference was preceded and followed by a number of field trips to some of the most prominent tidal flat and barrier island systems of continental Europe, and these have been written up as overview papers that summarize the current state of knowledge about these various tidal regions. The latest research results from this very specialized field. If you are a member of the International Association of Sedimentologists, for purchasing details, please see: http://www.iasnet.org/publications/details.asp?code=SP24
Author: Trent Michael Richardson
Publisher:
ISBN:
Category : Barrier islands
Languages : en
Pages : 0
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Book Description
This dissertation is a study of the shoreline and tidal inlet changes of the Parramore-Cedar barrier-island and Wachapreague tidal inlet system through the integration of a variety of geospatial data sets over a range of spatial and temporal scales. Fundamental changes to the historical trends of shoreline and tidal inlet behavior provide a means to quantitatively test the three-stage model of runaway transgression (Fitzgerald et al., 2004). The analysis of a robust set of shoreline data sets demonstrates the pattern of clockwise rotational instability over the long term as documented by Leatherman et al. (1982) has evolved into sustained rapid retreat along the entire outer shoreline of Parramore Island. In addition, Cedar Island has transitioned from in-place narrowing to rapid barrier rollover and landward migration through overwash and inlet processes. The non-inlet-influenced, open-ocean shoreline of Parramore Island experienced a -4.1 m/yr retreat rate from 1852 to 1998 and a -12.2 m/yr retreat rate from 1998 to 2010, according to a linear regression analysis. Similarly, Cedar Island's non-inlet-influenced, open-ocean shoreline underwent a -5.5 m/yr retreat rate from 1852 to 2007 and a -15.4 m/yr retreat rate from 2007 to 2010, also according to a linear regression analysis. The short-term retreat rates for both islands are nearly triple the long-term rates. These increases in shortterm retreat rates constitute a fundamental change in the pattern of historical shoreline movement for the Parramore-Cedar barrier-island system. The cross-sectional area of an inlet throat is used as a proxy to calculate tidal prism and ebb-tidal delta volume of tidal inlets. The historical cross-sectional areas for Wachapreague Inlet were 1845 m2 in 1852, 4473 m2 in 1871, 4737 m2 in 1911, 4572 m2 in 1934, 4047 m2 in 1972, 4398 m2 in 2007, 4735 m2 in 2010 (April), 5014 m2 in 2010 (August), and 5210 m2 in 2011. Tidal prism and ebb-tidal delta volumes at Wachapreague Inlet fluctuated from 1871 to 2011 with tidal prism ranging between 4.82 x 10[subscript 7] m[subscript 3] and 6.09 x10[subscript 7] m[subscript 3] and ebb-tidal delta volumes ranging between 1.85 x 10[subscript 7] m[subscript 3] and 2.46 x10[subscript 7] m[subscript 3]. From 1871 to 2007, the long-term linear regression rates of change were -2.4 m[subscript 2]/yr for cross-sectional area, -2.67 x10[subscript 4]m[subscript 3]/yr for tidal prism, and -1.26 m[subscript 3]/yr for ebb-tidal delta volume. However, from 2007 to 2011, the short-term linear regression rates of change switched to high rates of increase with 186.1 m[subscript 2]/yr for cross-sectional area, 2.04 x10[subscript 6]m[subscript 3]/yr for tidal prism, and 9.89 x10[subscript 5]m[subscript 3]/yr for ebb-tidal delta volume. Overall, from 1871 to 2007, cross-sectional area, tidal prism, and ebb-tidal delta volumes were characterized by relative stability to a slight decrease with a distinct increase more recently (2007-2011). This research accounts for the natural variability in tidal prism on a monthly basis (e.g., neap vs. spring tides, perigee vs. apogee) and a seasonal basis (e.g., potential coastal setup caused by meteorological events, thermal expansion of the water column [steric effect]) by utilizing a 15% natural variability in the tidal-inlet analyses as documented by O'Brien (1969). These spatial analyses provide insight into how shoreline and bathymetric changes of the Parramore-Cedar barrier-island system are driven by 1) the southern extension of the large arc of erosion located south of Assateague Island in response to sediment trapping at the large recurved spit complex at Fishing Point, Virginia; 2) relative sea level rise along the southern Delmarva Peninsula; 3) updrift barrier-island breaching north of Wachapreague Inlet along Cedar Island and other breaches further north; and 4) increased storminess along the outer barrier islands of the Virginia Eastern Shore. Of these four coastal-change drivers, the southern propagation of the large arc of erosion (i.e., lack of sediment supply) appears to be the primary driver of coastal evolution along the Parramore-Cedar barrier-island system for the past 150 years and potentially for the next 10 to 100 years into the future. Furthermore, this research presents a six-stage model of barrier evolution along the southern Delmarva Peninsula. The six-stage model accounts for changes in sediment supply, relative sea level rise, increased storminess, and the projected consequences to the Parramore-Cedar barrier-island system. The significance of short-term shoreline and bathymetric changes that depart from historical trends is important because these developments may indicate wider patterns of barrier-island change for the entire Virginia Eastern Shore and, perhaps, large expanses of mixed-energy coasts along the entire U.S. Atlantic seaboard.
Author: Chris Perry
Publisher: John Wiley & Sons
ISBN: 1444309005
Category : Science
Languages : en
Pages : 460
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Book Description
Environmental Sedimentology provides a comprehensive introduction to this rapidly expanding field which addresses the functioning and dynamics of contemporary sediment systems and how these systems respond to a range of both natural and anthropogenically-induced disturbance events. considers a range of sedimentary environments; mountain and upland, fluvial, lacustrine, arid, urban, deltaic and estuarine, temperate coastal, tropical coastal, and continental shelf aspects of sediment management and remediation are also considered as are the potential impacts of on-going and future climatic and environmental change Readership: advanced level undergraduates in earth science, environmental science and physical geography, and graduate students in the earth and environmental sciences with an interest in contemporary sediment systems
