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Colorado State University +
Fort Collins +
dan.scott@colostate.edu +
Scott +
4258028325 +
Colorado +
United States +
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19:59:25, 6 December 2017 +
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I have two broad research focuses that fit … I have two broad research focuses that fit into the theme of coupling tectonics and surface processes. First, I am working to link lithologic characteristics to bedrock river morphology, sediment dynamics, and riparian vegetation. This project seeks to understand how bedrock characteristics like fracture geometry (a reflection of the tectonically influenced stress regime) influence the morphology of bedrock rivers. In turn, I am attempting to understand how morphology controls factors such as sediment retention and resulting vegetation growth in valley bottoms, which can have strong feedbacks on weathering and therefore erodibility. At the CTSP workshop, I would like to discuss how to connect the long-term feedbacks between surface processes and tectonics, namely how tectonically-influenced fracture geometry can influence bedrock river erodibility on the scale of mountain ranges over long time periods. </br> I also have an ongoing research theme focusing on carbon storage in mountain river valley bottoms in the context of climate change. This project compares 4 mountain river basins across the western U.S. to model how differences in climate (influencing hydrologic regime and primary productivity) and uplift (influencing valley morphology and erosion rate) relate to differences in carbon storage magnitude. This project has implications regarding the feedbacks between climate and mountain building. If climate and tectonics regulate surface processes in a way that alters the magnitude of the land carbon sink, that may act as a feedback regulating climate. I would like the opportunity to discuss how to integrate this kind of biogeomorphic research with numerical modeling to better understand the feedbacks between tectonics, landscape evolution, and climate. I would like to contribute to the broader discussion of applying our understanding of surface processes to improve numerical modeling of landscape evolution over large spatial and temporal scales.on over large spatial and temporal scales.
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19:59:25, 6 December 2017 +
