Download or read book The Causes of Erosion to Siletz Spit Oregon written by Paul D. Komar and published by . This book was released on 1975 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tracings: 94.48.
Download or read book Handbook of Coastal Processes and Erosion written by Paul D. Komar and published by CRC Press. This book was released on 2018-02-06 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this book is to focus on the physical processes that cause coastal erosion.Many scientists and engineers have focused their research on the entire range of physical processes from the waves and the currents in the nearshore to the response of the beach, via sand transport, resulting in a changing coastal morphology. Of these many processes, this book focuses only on those which directly relate the generation of coastal erosion. Some chapters deal exclusively with the physical processes, while others provide examples of erosion problems although most of the chapter topics have clear implications for issues of coastal-zone management, these issues are not belaboured as several other books are already available in this area. The objective is to provide state-of-the-art presentation of the science of coastal erosion processes.
Download or read book The Spring 1976 Erosion of Siletz Spit Oregon written by Paul D. Komar and published by . This book was released on 1977 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the period 1970-76, Siletz Spit on the mid-Oregon coast has suffered foredune erosion. This erosion is associated with high wave conditions along the coast, produced by intense storms in the North Pacific. During the winter of 1972-73 and during January through March 1976 the erosion was particularly severe. The pre-1975 erosion of the spit has been documented in a previous study. One of the main purposes of the present study is to document the 1976 erosion and to contrast it with the earlier episodes. It differed principally in that a small wash-over of the spit occurred in one area and beach drift logs were thrown up onto the dunes. Neither occurred during previous erosion episodes, even during the 25 December 1972 storm when wave breakers exceeded a significant wave height of 7 meters. This is because the 1972 storm occurred at a time of low water level, neap tide conditions. In contrast, the 18 February 1976 major storm occurred during spring tide conditions, causing the wash-over and log throwing, even though the waves were smaller than in December 1972. The amount of dune retreat was somewhat less in 1976 than in 1972-73, partly because of the shorter time period over which the 1976 erosion occurred and partly because of the use of protective riprap. The large waves causing the erosion at Siletz Spit are generated by storms in the North Pacific. The storm systems for December 1972, January 1973, and February 1976 were analyzed as to fetch distances, wind speeds and directions, movements of the fetches, and other factors important in the generation of waves. Waves hindcasted from these data were compared with measurements of the waves obtained from a seismometer system at the Marine Science Center in Newport, Oregon. This comparison demonstrated that these distant fetches were responsible for the waves causing erosion on Siletz Spit. Waves generated locally by coastal winds appear to be of negligible importance in the erosion. This is also shown by a comparison between the wave measurements and data on the coastal winds at Newport during the times of maximum erosion. Tides were investigated for their role in contributing to coastal erosion. High spring tides allow the storm waves to better reach the dunes or sea cliffs and so permit greater erosion. Neap tides, with their lower water levels, diminish the amount of erosion. Many of the differences in the December 1972 and February 1976 erosion episodes were due to the difference in tide levels. Storm surges were determined for Yaquina Bay, Oregon, by subtracting the predicted high-tide levels from the observed levels. It was concluded that significant storm surges did not occur at the times of maximum spit erosion and therefore did not contribute to the erosion processes.
Download or read book Hdbk Coastal Processes Erosion written by Paul D. Komar and published by Springer. This book was released on 1983-12-20 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this book is to focus on the physical processes that cause coastal erosion.Many scientists and engineers have focused their research on the entire range of physical processes from the waves and the currents in the nearshore to the response of the beach, via sand transport, resulting in a changing coastal morphology. Of these many processes, this book focuses only on those which directly relate the generation of coastal erosion. Some chapters deal exclusively with the physical processes, while others provide examples of erosion problems although most of the chapter topics have clear implications for issues of coastal-zone management, these issues are not belaboured as several other books are already available in this area. The objective is to provide state-of-the-art presentation of the science of coastal erosion processes.
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1977 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book CRC Handbook of Coastal Processes and Erosion written by Paul D. Komar and published by . This book was released on 1983 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1977 with total page 758 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Encyclopedia of the World s Coastal Landforms written by Eric Bird and published by Springer Science & Business Media. This book was released on 2010-02-25 with total page 1530 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique richly-illustrated account of the landforms and geology of the world’s coasts, presented in a country-by-country (state-by-state) sequence, assembles a vast amount of data and images of an endangered and increasingly populated and developed landform. An international panel of 138 coastal experts provides information on “what is where” on each sector of coast, together with explanations of the landforms, their evolution and the changes taking place on them. As well as providing details on the coastal features of each country (state or county) the compendium can be used to determine the extent of particular features along the world’s coasts and to investigate comparisons and contrasts between various world regions. With more than 1440 color illustrations and photos, it is particularly useful as a source of information prior to researching or just visiting a sector of coast. References are provided to the current literature on coastal evolution and coastline changes.
Download or read book Treatise on Estuarine and Coastal Science written by and published by Academic Press. This book was released on 2012-03-06 with total page 4604 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of estuaries and coasts has seen enormous growth in recent years, since changes in these areas have a large effect on the food chain, as well as on the physics and chemistry of the ocean. As the coasts and river banks around the world become more densely populated, the pressure on these ecosystems intensifies, putting a new focus on environmental, socio-economic and policy issues. Written by a team of international expert scientists, under the guidance of Chief Editors Eric Wolanski and Donald McClusky, the Treatise on Estuarine and Coastal Science, Ten Volume Set examines topics in depth, and aims to provide a comprehensive scientific resource for all professionals and students in the area of estuarine and coastal science Most up-to-date reference for system-based coastal and estuarine science and management, from the inland watershed to the ocean shelf Chief editors have assembled a world-class team of volume editors and contributing authors Approach focuses on the physical, biological, chemistry, ecosystem, human, ecological and economics processes, to show how to best use multidisciplinary science to ensure earth's sustainability Provides a comprehensive scientific resource for all professionals and students in the area of estuarine and coastal science Features up-to-date chapters covering a full range of topics
Download or read book Geologic Field Trips in Western Oregon and Southwestern Washington written by Keith Floyd Oles and published by . This book was released on 1980 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Checklist of Official Publications of the State of Oregon written by Oregon State Library and published by . This book was released on 1974 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Ecological Characterization of the Pacific Northwest Coastal Region written by and published by . This book was released on 1981 with total page 842 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Ecological Characterization of the Pacific Northwest Coastal Region Characterization atlas regional synopsis written by and published by . This book was released on 1980 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Ecological Characterization of the Pacific Northwest Coastal Region Data source appendix written by and published by . This book was released on 1980 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sea Grant 70 s written by and published by . This book was released on 1976 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Influence of Forest and Rangeland Management on Anadromous Fish Habitat in Western North America written by James R. Sedell and published by . This book was released on 1985 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
