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On extracting sediment transport information from measurements of luminescence in river sediment
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2017
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Source: Journal of Geophysical Research: Earth Surface, 122(3), 654-677
[PDF-32.16 MB]
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Journal Title:Journal of Geophysical Research: Earth Surface
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Description:Accurately quantifying sediment transport rates in rivers remains an important goal for geomorphologists, hydraulic engineers, and environmental scientists. However, current techniques for measuring long-time scale (102–106years) transport rates are laborious, and formulae to predict transport are notoriously inaccurate. Here we attempt to estimate sediment transport rates by using luminescence, aproperty of common sedimentary minerals that is used by the geoscience community for geochronology. This method is advantageous because of the ease of measurement on ubiquitous quartz and feldspar sand. We develop a model from first principles by using conservation of energy and sediment mass to explain the downstream pattern of luminescence in river channel sediment. We show that the model can accurately
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Source:Journal of Geophysical Research: Earth Surface, 122(3), 654-677
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DOI:
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ISSN:2169-9003;2169-9011;
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Rights Information:Other
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