Author: Edward J. Leahy
Publisher:
ISBN:
Category : Neutrons
Languages : en
Pages : 116
Book Description
Dredged Sediment Movement Tracing in San Francisco Bay Utilizing Neutron Activation
Author: Edward J. Leahy
Publisher:
ISBN:
Category : Neutrons
Languages : en
Pages : 116
Book Description
Publisher:
ISBN:
Category : Neutrons
Languages : en
Pages : 116
Book Description
Dredged Sediment Movement Tracing in San Francisco Bay Utilizing Neutron Activation
Author: United States. National Technical Information Service. U.S. Army Engineer Waterways Experiment Station. United States. Army. Corps of Engineers. San Francisco District
Publisher:
ISBN:
Category :
Languages : en
Pages : 109
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 109
Book Description
Dredged Sediment Movement Tracing in San Francisco Bay Utilizing Neutron Activation
Author:
Publisher:
ISBN:
Category : Dredging spoil
Languages : en
Pages : 130
Book Description
Publisher:
ISBN:
Category : Dredging spoil
Languages : en
Pages : 130
Book Description
Dredged Sediment Movement Tracing in San Francisco Bay Utilizing Neutron Activation
Author: Edward J. Leahy
Publisher:
ISBN:
Category : Neutrons
Languages : en
Pages : 0
Book Description
In 1973 a study was initiated on the environmental impacts of dredging and aquatic disposal operations in San Francisco Bay. One part of this study was a program to determine the movement and recirculation of dredged materials after their aquatic disposal. The movement and circulation of sediments in San Francisco Bay result from the complex interactions of tidal flows, wind-wave resuspension and recirculation and variations of freshet conditions with associated sediment loads, stratification, and shifting of nodal point. A program was instituted to physically trace the movement of dredged materials with the objective of quantifying the horizontal and vertical recirculation of the dredged sediment. Tracing was accomplished by tagging Bay sediments with iridium, neutron-activating sediment samples collected from an extensive test area, and using gamma-ray spectrometry to determine the quantity of iridium and hence the amount of dredged material present. This technique was successfully proven. Although somewhat expensive, iridium was found to be the most cost-effective chemical element for tagging and tracing sediments for the conditions existing in San Francisco Bay. With the neutron activation process, however, other chemical elements can definitely be used and may be more cost-effective for tracing dredged sediments elsewhere.
Publisher:
ISBN:
Category : Neutrons
Languages : en
Pages : 0
Book Description
In 1973 a study was initiated on the environmental impacts of dredging and aquatic disposal operations in San Francisco Bay. One part of this study was a program to determine the movement and recirculation of dredged materials after their aquatic disposal. The movement and circulation of sediments in San Francisco Bay result from the complex interactions of tidal flows, wind-wave resuspension and recirculation and variations of freshet conditions with associated sediment loads, stratification, and shifting of nodal point. A program was instituted to physically trace the movement of dredged materials with the objective of quantifying the horizontal and vertical recirculation of the dredged sediment. Tracing was accomplished by tagging Bay sediments with iridium, neutron-activating sediment samples collected from an extensive test area, and using gamma-ray spectrometry to determine the quantity of iridium and hence the amount of dredged material present. This technique was successfully proven. Although somewhat expensive, iridium was found to be the most cost-effective chemical element for tagging and tracing sediments for the conditions existing in San Francisco Bay. With the neutron activation process, however, other chemical elements can definitely be used and may be more cost-effective for tracing dredged sediments elsewhere.
Dredged Sediment Movement Tracing in San Francisco Bay Utilizing Neutron Activation. Appendix A: San Francisco Bay Sampling Data
Author: Edward J. Leahy
Publisher:
ISBN:
Category :
Languages : en
Pages : 124
Book Description
Contents: San Francisco Bay Sampling Data -- Test area samples, Hopper samples, Central and South Bay samples(Outside test area), and Mare Island Strait profile samples.
Publisher:
ISBN:
Category :
Languages : en
Pages : 124
Book Description
Contents: San Francisco Bay Sampling Data -- Test area samples, Hopper samples, Central and South Bay samples(Outside test area), and Mare Island Strait profile samples.
Selected Water Resources Abstracts
Author:
Publisher:
ISBN:
Category : Hydrology
Languages : en
Pages : 1216
Book Description
Publisher:
ISBN:
Category : Hydrology
Languages : en
Pages : 1216
Book Description
San Francisco Bay Long-Term Management Strategy (LTMS) for Dredging and Disposal
Author: Allen M. Teeter
Publisher:
ISBN:
Category : Dredging
Languages : en
Pages : 100
Book Description
Publisher:
ISBN:
Category : Dredging
Languages : en
Pages : 100
Book Description
Dredge Disposal Study San Francisco Bay and Estuary
Author: United States. Army. Corps of Engineers. San Francisco District
Publisher:
ISBN:
Category : Dredging
Languages : en
Pages : 672
Book Description
Publisher:
ISBN:
Category : Dredging
Languages : en
Pages : 672
Book Description
Energy Research Abstracts
Author:
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 564
Book Description
Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 564
Book Description
Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Northern California Coastal Processes Annotated Bibliography
Author:
Publisher:
ISBN:
Category : Coastal engineering
Languages : en
Pages : 524
Book Description
Publisher:
ISBN:
Category : Coastal engineering
Languages : en
Pages : 524
Book Description