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|a The Climatic Signature of Incised River Meanders |h [electronic resource] |y English. |
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|a [S.l.] : |b American Association for the Advancement of Science, |c 2010-03-19. |
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|a Please contact the owning institution for licensing and permissions. It is the user's responsibility to ensure use does not violate any third party rights. |
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|a Climate controls landscape evolution, but quantitative signatures of climatic drivers have yet to
be found in topography on a broad scale. Here we describe how a topographic signature of
typhoon rainfall is recorded in the meandering of incising mountain rivers in the western
North Pacific. Spatially averaged river sinuosity generated from digital elevation data peaks in the
typhoon-dominated subtropics, where extreme rainfall and flood events are common, and
decreases toward the equatorial tropics and mid-latitudes, where such extremes are rare.
Once climatic trends are removed, the primary control on sinuosity is rock weakness. Our results
indicate that the weakness of bedrock channel walls and their weakening by heavy rainfall
together modulate rates of meander propagation and sinuosity development in incising rivers. |
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|a Electronic reproduction. |c Florida International University, |d 2015. |f (dpSobek) |n Mode of access: World Wide Web. |n System requirements: Internet connectivity; Web browser software. |
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|a Kai-Qin Xu |u National Institute for Environmental Studies. |
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|a dpSobek |c Sea Level Rise |
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|u http://dpanther.fiu.edu/dpService/dpPurlService/purl/FI15042575/00001 |y Click here for full text |
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|a http://dpanther.fiu.edu/sobek/content/FI/15/04/25/75/00001/FI15042575_thm.jpg |
