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Assessment Of Hydrodynamic And Water Quality Impacts For Channel Deepening In The Thimble Shoals Norfolk Harbor And Elizabeth River Channels
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Book Synopsis Assessment of Hydrodynamic and Water Quality Impacts for Channel Deepening in the Thimble Shoals, Norfolk Harbor, and Elizabeth River Channels by : Jiang Shen
Download or read book Assessment of Hydrodynamic and Water Quality Impacts for Channel Deepening in the Thimble Shoals, Norfolk Harbor, and Elizabeth River Channels written by Jiang Shen and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: To investigate the feasibility for Norfolk Harbor channel deepening in the lower James and Elizabeth Rivers, one of the key services of the project is to evaluate the impacts of deepening the Atlantic Ocean Channel to 55 feet (from 50 feet), Thimble Shoal Channel to 55 feet (from 50 feet), Elizabeth River (north of Lambert Point) to 50 feet (from 45 feet) and the Southern Branch (north of the I64 Bridge) to 50/45/45 feet. In general, the shipping channel dredging will result in enhancement of estuarine gravitational circulation, accentuate the tidal and wind wave influence upstream, and affect the ecosystem dynamics in the lower Bay, particularly, dissolved oxygen (DO) in the James River and Elizabeth River. The real question is how much is that impact? Can it be quantitatively evaluated? Can the impact be measured temporally and spatially? VIMS scientists are working with engineers of Moffatt and Nichol and the Norfolk District of the U. S. Army Corps of Engineers to evaluate the impact of channel deepening on the hydrodynamics and dissolved oxygen (DO), and the flushing capabilities of the Lower James and Elizabeth Rivers, and to provide statistical measures to assess the impact resulting from channel deepening both locally and globally. This report documents hydrodynamic and water quality model simulations for this study and key findings of the water quality model results related to environment assessment, particularly, changes of dissolved oxygen and flushing capacity.
Book Synopsis Assessment of Hydrodynamic and Water Quality Impacts for Channel Deepening in the Thimble Shoals, Norfolk Harbor, and Elizabeth River Channels by : Joseph Zhang
Download or read book Assessment of Hydrodynamic and Water Quality Impacts for Channel Deepening in the Thimble Shoals, Norfolk Harbor, and Elizabeth River Channels written by Joseph Zhang and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: For over twenty years, the U. S. Army Corps of Engineers (USACE) and the Virginia Port Authority (VPA), representing the Commonwealth Secretary of Transportation, have collaborated on projects key to port development that also preserve the environmental integrity of both Hampton Roads and the Elizabeth River. The USACE and the VPA are working to investigate channel deepening in this region to provide access to a new generation of cargo ships (e.g., Panamax-class). The main goal of this project is to investigate the feasibility for Norfolk Harbor channel deepening in the lower James and Elizabeth Rivers and assess the environmental impact of the shipping channels dredging in Atlantic Ocean Channel, Thimble Shoal Channel, Elizabeth River channel, and the Southern Branch. Specifically, we support the request of “Planning and Engineering Services for Norfolk Harbor” in three areas: (1) using high-resolution hydrodynamic modeling to evaluate the change of hydrodynamics resulting from Channel Deepening (2) assessment of water quality modeling using the Hydrodynamic Eutrophication Model (HEM3D) (3) conducting the statistical measure of impacts resulting from Channel Deepening. Virginia Institute of Marine Science (VIMS) team has applied a3D unstructured-grid hydrodynamic model (SCHISM, Zhang et al., 2016) in the study of impact of channel dredging on hydrodynamics in the project area. The model was adopted due to its flexible gridding systems used: hybrid triangular-quadrangular unstructured grids in the horizontal and flexible vertical coordinate system in the vertical (Zhang et al. 2015). High resolution (up to 15m) is used to faithfully resolve the channels and other important features such as tunnel islands, etc.
Book Synopsis Norfolk Harbor and Channels, Deepening and Disposal by :
Download or read book Norfolk Harbor and Channels, Deepening and Disposal written by and published by . This book was released on 1981 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Incorporation of Sea Level Change Scenarios Into Norfolk Harbor and Channels Deepening Study & Elizabeth River Southern Branch Navigation Improvements Study by : Rico Wang
Download or read book Incorporation of Sea Level Change Scenarios Into Norfolk Harbor and Channels Deepening Study & Elizabeth River Southern Branch Navigation Improvements Study written by Rico Wang and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Virginia Institute of Marine Science (VIMS) team has applied a 3D unstructured-grid hydrodynamic model SCHISM in the study of the impact of channel dredging on hydrodynamics in the lower Chesapeake Bay project area. This report is a companion report to that of Zhang et al. (2017; doi:10.21220/V5MF0F) and focuses on the impact of channel dredging specifically under the projected future sea-level change (SLC) of 1 meter rise by 2100. This is an average of the high end of semi-empirical, global sea-level rise (SLR) projections adopted by the Virginia Port Authority (VPA) and the Army Corps of Engineers, Norfolk District, for the evaluation. From a tidal dynamics point of view, the 1-meter mean SLR increases the water depth in the channel and also increases the horizontal extent of the Bay water coverage.
Book Synopsis Norfolk Harbor and Channels, Virginia, Deepening and Disposal: Main report by :
Download or read book Norfolk Harbor and Channels, Virginia, Deepening and Disposal: Main report written by and published by . This book was released on 1980 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Norfolk Harbor and Channels Deepening Study. Report 2. Sedimentation Investigation; Cheasapeake Bay Hydraulic Model Investigation by : R. C Berger (Jr)
Download or read book Norfolk Harbor and Channels Deepening Study. Report 2. Sedimentation Investigation; Cheasapeake Bay Hydraulic Model Investigation written by R. C Berger (Jr) and published by . This book was released on 1985 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the sedimentation findings from combined physical and numerical model tests (hybrid modeling) of deepening the approach channels to Norfolk and Newport News, Virginia. Because of the varying nature of shoaled material along the project navigation channel, the tests included two separate numerical sediment transport models, which were referred to as the Thimble Shoal model and the Elizabeth River model. The sediment along the Thimble Shoal portion of the navigation channel consists predominantly of noncohesive material while the sediment along the Elizabeth River portion of the navigation project consists primarily of clays and silts. Sedimentation in a third portion of the overall project, referred to as the Atlantic Ocean Channel, was evaluated analytically without using a numerical sediment transport model.
Book Synopsis Section 933 Evaluation Report, Thimble Shoal and Atlantic Ocean Channels, Sandbridge Beach, Virginia Beach, Virginia by : J. J. Thomas
Download or read book Section 933 Evaluation Report, Thimble Shoal and Atlantic Ocean Channels, Sandbridge Beach, Virginia Beach, Virginia written by J. J. Thomas and published by . This book was released on 1990 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The purpose of this study is to determine the Federal interest in participating in the cost of placing suitable material from Thimble Shoal Channel and/or Atlantic Ocean Channel ... on the beach at Sandbridge in Virginia Beach rather than depositing it in an offshore disposal area. The evaluation report will consider only that material to be provided from the 55-foot-deep outbound channel which is part of the Norfolk Harbor and Channels, Virginia, project."--Page 1.
Book Synopsis Norfolk Harbor Maintenance Dredging by :
Download or read book Norfolk Harbor Maintenance Dredging written by and published by . This book was released on 1973 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Norfolk Harbor and Thimble Shoal Channel, VA by : United States. Army. Office of the Chief Engineer
Download or read book Norfolk Harbor and Thimble Shoal Channel, VA written by United States. Army. Office of the Chief Engineer and published by . This book was released on 1954 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Norfolk Harbor and Channels, Virginia, Geology and Soils Thimble Shoal Channel by : W. Jerry Swean
Download or read book Norfolk Harbor and Channels, Virginia, Geology and Soils Thimble Shoal Channel written by W. Jerry Swean and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Tampa Harbor, Deepening Channels by :
Download or read book Tampa Harbor, Deepening Channels written by and published by . This book was released on 1971 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Norfolk Harbor and Channels, Virginia, Deepening and Disposal by : United States. Army. Corps of Engineers. Norfolk District
Download or read book Norfolk Harbor and Channels, Virginia, Deepening and Disposal written by United States. Army. Corps of Engineers. Norfolk District and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Norfolk Harbor and Channels Deepening Study by : R. C. Jr Berger
Download or read book Norfolk Harbor and Channels Deepening Study written by R. C. Jr Berger and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Norfolk Harbor and channels deepening study by : David R. Richards
Download or read book Norfolk Harbor and channels deepening study written by David R. Richards and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mobile Harbor Channel Deepening by :
Download or read book Mobile Harbor Channel Deepening written by and published by . This book was released on 1981 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Baltimore Harbor and Channels Navigation Improvement (MD,VA) by :
Download or read book Baltimore Harbor and Channels Navigation Improvement (MD,VA) written by and published by . This book was released on 1981 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis NORFOLK HARBOR AND CHANNELS, VIRGINIA by : United States. Army. Corps of Engineers. North Atlantic Division
Download or read book NORFOLK HARBOR AND CHANNELS, VIRGINIA written by United States. Army. Corps of Engineers. North Atlantic Division and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
