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Application of a Luminescence-Based Sediment Transport Model
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2018
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Source: Geophysical Research Letters (2018)
[PDF-2.47 MB]
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Journal Title:Geophysical Research Letters
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Description:Quantifying the transport history of sand is a challenging but important goal in geomorphology. In this paper, we take a simple idea that luminescence is bleached during transport andregeneratesduringstorage,andusethisasabasistore-envisionluminescenceasasedimenttracer.Weapplyamathematicalmodeldescribingluminescencethroughanidealizedchannelandreservoir systemandthencomparethisidealizedmodeltorealriverstoseeifluminescencecanreproduceknown sediment transport data. We provide results from application of this luminescence method in threerivers from the mid-Atlantic region of the United States. This method appears promising. However, asariversystemdivergesfromidealizedconditionsofthemathematicalmodel,theluminescencedata diverge from model predictions. We suggest that spatial variation in the delivery of sediment fromhillslopes can be reflected in the channel sediment luminescence and that luminescence acts as
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Source:Geophysical Research Letters (2018)
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DOI:
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ISSN:0094-8276
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