Suspended Sediment in San Francisco Bay Estuary, California
Author: David H. Peterson
Publisher:
Published: 1993
Total Pages: 74
ISBN-13:
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Author: David H. Peterson
Publisher:
Published: 1993
Total Pages: 74
ISBN-13:
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Publisher: DIANE Publishing
Published:
Total Pages: 56
ISBN-13: 1428911502
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Publisher: DIANE Publishing
Published:
Total Pages: 54
ISBN-13: 142891076X
DOWNLOAD EBOOKAuthor: Curtiss O. Davis
Publisher:
Published: 1981
Total Pages: 68
ISBN-13:
DOWNLOAD EBOOKAuthor: Larry M. Hauck
Publisher:
Published: 1990
Total Pages: 132
ISBN-13:
DOWNLOAD EBOOKAuthor: Paul A. Buchanan
Publisher:
Published: 2000
Total Pages: 52
ISBN-13:
DOWNLOAD EBOOKAuthor: Fernanda Achete
Publisher: CRC Press
Published: 2020-04-22
Total Pages: 157
ISBN-13: 0429611501
DOWNLOAD EBOOKMany estuaries are located in urbanized, highly engineered environments. Cohesive sediment plays an important role due to its link with estuarine health and ecology. An important ecological parameter is the suspended sediment concentration (SSC) translated into turbidity levels and sediment budget. This study contributes to investigate and forecast turbidity levels and sediment budget variability at San Francisco Bay-Delta system at a variety of spatial and temporal scales applying a flexible mesh process-based model (Delft3D FM). It is possible to have a robust sediment model, which reproduces 90% of the yearly data derived sediment budget, with simple model settings, like applying one mud fraction and a simple bottom sediment distribution. This finding opens the horizon for modeling less monitored estuaries. Comparing two case studies, i.e. the Sacramento-San Joaquin Delta and Alviso Slough, a classification for estuaries regarding the main sediment dynamic forcing is proposed: event-driven estuary (Delta) and tide-driven estuary (Alviso Slough). In the event-driven estuaries, the rivers are the main sediment source and the tides have minor impact in the net sediment transport. In the tide-driven estuaries, the main sediment source is the bottom sediment and the tide asymmetry defines the net sediment transport. This research also makes advances in connecting different scientific fields and developing a managerial tool to support decision making. It provides the basis to a chain of models, which goes from the hydrodynamics, to suspended sediment, to phytoplankton, to fish, clams and marshes.
Author: Broderick E. Davis
Publisher:
Published: 2005
Total Pages: 28
ISBN-13:
DOWNLOAD EBOOKAuthor: James E. Cloern
Publisher: Springer
Published: 1985-11-30
Total Pages: 237
ISBN-13: 9061935385
DOWNLOAD EBOOKEstuaries are highly dynamic systems subject to changes occurring over a spectrum of time scales ranging from very short periods (e. g. over a tidal cycle) to geologic time scales. The nature of an estuary reflects complex responses to many driving forces, each having a characteristic frequency (or frequencies) of change. For example, freshwater inflow to estuaries varies daily in response to short-term events such as storms, seasonally, and between years as a result of longer-term climatic variability. Other important components of weather, e. g. wind speed/ direction and daily insolation, also vary over time scales ranging from hours to years. Tidal amplitude changes continuously with dominant frequencies associated with the semi-diurnal cycle, the fortnightly neap-spring, and the semi-annual cycle. Temporal dynamics of these driving forces evoke responses in the form of changing (I) circulation patterns and mixing, (2) sediment composition and transport, (3) solute speciation and distribution, (4) composition and abundance of particulates, (5) biomass, species composition, and productivity of plant and animal communities, (6) rates of material exchange between the sediments, water column, and atmosphere, and (7) bioavailability of trace metals and other pollutants. The purpose of this book is to examine the temporal dynamics of these properties and processes in the San Francisco Bay estuary.
Author: United States. Army. Corps of Engineers. San Francisco District
Publisher:
Published: 1974
Total Pages: 672
ISBN-13:
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