Author: United States. Army. Corps of Engineers. Buffalo DistrictPublisher:
ISBN:
Category : Ontario, Lake (N.Y. and Ont.)
Languages : en
Pages : 528
Book Description
Influence of Lake Levels and Ice Cover on a Modified Shoreline
Author: Joshua K. FowlerPublisher:
ISBN:
Category : Beach erosion
Languages : en
Pages : 128
Book Description
Ohio's Lake Erie shoreline, situated along the high-energy south-central Lake Erie coast, is characterized as a sediment-starved, wave-dominated erosional coastal system. Harbor-protecting structures installed in the early 1900s have fragmented the littoral system, which trends from W to E across the area, trapping bluff-derived sediments on their up-drift sides. The studied depositional harbor headlands of Lake County (i.e. Headlands Beach) and Ashtabula County (i.e. Walnut Beach and Conneaut Beach) are located along a ~65 km stretch of the south-central Lake Erie shoreline. Given many shared similarities and similar degrees of exposure to lake-level variations, winter-ice covers, and storm conditions (with associated surge levels, waves, and strong coastal currents), the geologic and anthropogenic distinctions between the sites need to be evaluated as potential drivers of coastal change. Historic shoreline positions, mapped from georeferenced aerial photographs, provide a chronology to evaluate the recent geomorphic evolution of these headlands with respect to these physical forcing parameters. Ground-penetrating radar (GPR) data reveal changes in prograding clinoform (i.e. preserved foreshore deposits) geometry, attesting to the inherent dynamics of headland beaches, which have been impacted by episodic erosion and deposition at decadal timescales. Multiple regression analysis of net beach growth, derived from shoreline positions, versus lake level and ice cover suggest that high lake levels are more strongly associated with beach growth overall; this is surprising given variable sediment sources and beach compositions from site to site. Beach growth during elevated lake levels are likely attributed to increased sediment fluxes from sourcing bluffs. Ice cover appears to play a secondary, yet important role in headland evolution as both an erosional and depositional mechanism capable of entraining course-grained sediments and reshaping shorelines. The design of harbor structures influences sedimentation at the headlands by dictating the bounds of beach form. Changes in the rates of decadal beach progradation are associated with distinct changes in breakwater orientation, which represent an intrinsic control on the distribution of accommodation-space distribution at the shoreline.
Feasibility Study of Shoreline Protection and Lake Level Regulation for Lake Ontario: Appendices
Author: United States. Army. Corps of Engineers. Buffalo DistrictPublisher:
ISBN:
Category : Ontario, Lake (N.Y. and Ont.)
Languages : en
Pages : 528
Book Description
Great Lakes Water Levels
Author: National Research Council (U.S.). Water Science and Technology BoardPublisher:
ISBN:
Category : Climatic changes
Languages : en
Pages : 192
Book Description
Sea-Level Rise for the Coasts of California, Oregon, and Washington
Author: National Research CouncilPublisher: National Academies Press
ISBN: 0309255945
Category : Science
Languages : en
Pages : 274
Book Description
Tide gauges show that global sea level has risen about 7 inches during the 20th century, and recent satellite data show that the rate of sea-level rise is accelerating. As Earth warms, sea levels are rising mainly because ocean water expands as it warms; and water from melting glaciers and ice sheets is flowing into the ocean. Sea-level rise poses enormous risks to the valuable infrastructure, development, and wetlands that line much of the 1,600 mile shoreline of California, Oregon, and Washington. As those states seek to incorporate projections of sea-level rise into coastal planning, they asked the National Research Council to make independent projections of sea-level rise along their coasts for the years 2030, 2050, and 2100, taking into account regional factors that affect sea level. Sea-Level Rise for the Coasts of California, Oregon, and Washington: Past, Present, and Future explains that sea level along the U.S. west coast is affected by a number of factors. These include: climate patterns such as the El Niño, effects from the melting of modern and ancient ice sheets, and geologic processes, such as plate tectonics. Regional projections for California, Oregon, and Washington show a sharp distinction at Cape Mendocino in northern California. South of that point, sea-level rise is expected to be very close to global projections. However, projections are lower north of Cape Mendocino because the land is being pushed upward as the ocean plate moves under the continental plate along the Cascadia Subduction Zone. However, an earthquake magnitude 8 or larger, which occurs in the region every few hundred to 1,000 years, would cause the land to drop and sea level to suddenly rise.
Transition to Renewable Energy Systems
Author: Detlef StoltenPublisher: John Wiley & Sons
ISBN: 352767389X
Category : Science
Languages : en
Pages : 882
Book Description
In this ready reference, top academic researchers, industry players and government officers join forces to develop commercial concepts for the transition from current nuclear or fossil fuel-based energy to renewable energy systems within a limited time span. They take into account the latest science and technology, including an analysis of the feasibility and impact on the environment, economy and society. In so doing, they discuss such complex topics as electrical and gas grids, fossil power plants and energy storage technologies. The contributions also include robust, conceivable and breakthrough technologies that will be viable and implementable by 2020.
USA CRREL Technical Publications
Author: Cold Regions Research and Engineering Laboratory (U.S.)Publisher:
ISBN:
Category : Frozen ground
Languages : en
Pages : 386
Book Description
Water Resources Development by the U.S. Army Corps of Engineers in Illinois
Author: Effects of Global Warming on the Great Lakes
Author: Publisher:
ISBN:
Category : Greenhouse effect, Atmospheric
Languages : en
Pages : 40
Book Description
Author: 
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