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" Application-Oriented Approaches to Modeling and Satellite-Based Monitoring of Watershed Sediment Dynamics "
Beveridge, Claire
Hossain, Faisal
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Latin Dissertation
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English
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| Record Number
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1054617
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| Doc. No
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TL53734
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| Main Entry
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Beveridge, Claire
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| Title & Author
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Application-Oriented Approaches to Modeling and Satellite-Based Monitoring of Watershed Sediment Dynamics\ Beveridge, ClaireHossain, Faisal
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| College
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University of Washington
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| Date
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2020
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| Degree
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Ph.D.
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2020
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| Note
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189 p.
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| Abstract
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Global river sediment dynamics are dramatically being altered by humans in various ways, such as dam-building, deforestation, mining, and climate change. This is having major impacts on the environment and society, as sediment is vitally interconnected with water, food, energy, and ecological systems. In-situ monitoring of sediment is challenging and sediment data records are highly limited, especially in developing countries. Computational modeling and satellite remote sensing can support sediment management needs by providing sediment-related information at broad spatial and temporal scales. Considering this, researchers are frequently developing “use-inspired” tools and approaches for the modeling and monitoring of sediment dynamics, and the environment more broadly. However, use-inspired research does not always go on to become “user-ready,” or directly integrated into societal application. This is largely because engagement between researchers and stakeholders is lacking. The main objective of this dissertation is to assess how sediment dynamics research approaches of computational modeling and satellite remote sensing can be more effectively oriented towards watershed planning, management, engineering, and decision-making. First, a unique, interdisciplinary modeling approach was developed, combining state-of-the-art hydrologic and sediment transport modeling research methods. The model was tested in the Elwha River basin upstream of a former dam. The model produced accurate lifetime reservoir sedimentation volume estimates and other management-related outputs. Second, satellite remote sensing data was used to quantify changes in suspended sediment concentration (SSC) patterns due to widespread dam development in the 3S tributaries of the Mekong River Basin. Satellite data on nighttime lights and land cover helped to better explain SSC patterns. The capacities and limitations of satellite remote sensing to support sediment management were explored. Finally, a cloud-based, satellite remote sensing tool for monitoring SSC was co-developed with the Bangladesh Water Development Board. The aim of the tool was to support management of widespread riverbank erosion and riverbed accretion. The key strengths, weaknesses, and lessons learned in the stakeholder engagement process were highlighted. The two foundational strengths were a long-standing researcher-stakeholder partnership and stakeholder leadership. Overall, this dissertation demonstrates how to take sediment dynamics research tools from use-inspired to user-ready so that they effectively support growing societal needs.
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| Descriptor
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Geomorphology
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Hydrologic sciences
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Remote sensing
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Water resources management
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Hossain, Faisal
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University of Washington
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