NDLI: How important are climate change and foreseen engineering measures on the sediment dynamics in the San Francisco Bay-Delta system?

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How important are climate change and foreseen engineering measures on the sediment dynamics in the San Francisco Bay-Delta system?

Content Provider	Scilit
Author	Achete, Fernanda Minikowski
Copyright Year	2020
Description	Many estuaries are located in urbanized, highly engineered environments. At the same time, they host valuable ecosystems and natural resources. These ecosystems rely on the maintenance of habitat conditions which are constantly changing due to anthropogenic impacts like sea level rise, reservoir operations, and other civil works. This study aims to evaluate the impact of changes in the system forcing on estuarine fine sediment dynamics and budgets. Suspended sediment concentration (SSC) is an important ecosystem health indicator. We apply a process-based modeling approach to assess in detail the impact of climate change and possible engineering scenarios on the San Francisco Bay-Delta system. Model results show that levee breaching may change the entire Delta circulation by increasing the tidal prism and increasing sediment trapping in the Delta. The reduction of sediment input by the watershed has the most impact on habitat conditions while sea level rise decreases mean SSC and trapping efficiency. Our approach shows that validated process-based models are a useful tool to address long-term (decades to centuries) changes in sediment dynamics. In addition, they provide a useful starting point to long-term, process-based studies addressing ecosystem dynamics and health. Book Name: Multiple Scales of Suspended Sediment Dynamics in a Complex Geometry Estuary
Related Links	https://content.taylorfrancis.com/books/download?dac=C2016-0-96512-1&isbn=9780138746278&doi=10.1201/9780138746278-5&format=pdf
DOI	10.1201/9780138746278-5
Language	English
Publisher	Informa UK Limited
Publisher Date	2020-04-22
Access Restriction	Open
Subject Keyword	Book Name: Multiple Scales of Suspended Sediment Dynamics in a Complex Geometry Estuary Oceanography Sediment Models Climate Change Delta System Habitat Conditions San Francisco Sea Level Francisco Bay Level Rise Bay Delta
Content Type	Text
Resource Type	Chapter

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