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dc.contributor.authorGhoshal, S.
dc.contributor.authorJames, L.A.
dc.contributor.authorSinger, Michael B.
dc.contributor.authorAalto, R.
dc.identifier.citationGhoshal , S , James , L A , Singer , M B & Aalto , R 2010 , ' Channel and floodplain change analysis over a 100-year period : Lower Yuba River, California ' , Remote Sensing , vol. 2 , no. 7 , pp. 1797-1825 .
dc.identifier.otherPURE: 2602644
dc.identifier.otherPURE UUID: 2ea9530c-37e5-4f3b-99dc-e9ebe3329b7f
dc.identifier.otherScopus: 84860389955
dc.description.abstractHydraulic gold mining in the Sierra Nevada, California (1853–1884) displaced ~1.1 billion m3 of sediment from upland placer gravels that were deposited along piedmont rivers below dams where floods can remobilize them. This study uses topographic and planimetric data from detailed 1906 topographic maps, 1999 photogrammetric data, and pre- and post-flood aerial photographs to document historic sediment erosion and deposition along the lower Yuba River due to individual floods at the reach scale. Differencing of 3 × 3-m topographic data indicates substantial changes in channel morphology and documents 12.6 × 106 m3 of erosion and 5.8 × 106 m3 of deposition in these reaches since 1906. Planimetric and volumetric measurements document spatial and temporal variations of channel enlargement and lateral migration. Over the last century, channels incised up to ~13 m into mining sediments, which dramatically decreased local flood frequencies and increased flood conveyance. These adjustments were punctuated by event-scale geomorphic changes that redistributed sediment and associated contaminants to downstream lowlands.
dc.relation.ispartofRemote Sensingen
dc.rights© 2010 by the authors; licensee MDPI, Basel, Switzerland. This article is an Open Access article distributed under the terms and conditions of the Creative Commons Attribution license (
dc.subjectFluvial geomorphologyen
dc.subjectChange detectionen
dc.subjectChannel migrationen
dc.subjectDEM differencingen
dc.subjectHydraulic mining sedimenten
dc.subjectFloodplain morphologyen
dc.subjectGB Physical geographyen
dc.titleChannel and floodplain change analysis over a 100-year period : Lower Yuba River, Californiaen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. Earth and Environmental Sciencesen
dc.description.statusPeer revieweden

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