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Rates of flood-plain sedimentation on the central Amazon River

1994; Geological Society of America; Volume: 22; Issue: 2 Linguagem: Inglês

10.1130/0091-7613(1994)022 2.3.co;2

1943-2682

Leal A. K. Mertes,

Geological formations and processes

Research Article| February 01, 1994 Rates of flood-plain sedimentation on the central Amazon River Leal A. K. Mertes Leal A. K. Mertes 1Department of Geography, University of California, Santa Barbara, California 93106-4060 Search for other works by this author on: GSW Google Scholar Geology (1994) 22 (2): 171–174. https://doi.org/10.1130/0091-7613(1994)022 2.3.CO;2 Article history first online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share MailTo Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation Leal A. K. Mertes; Rates of flood-plain sedimentation on the central Amazon River. Geology 1994;; 22 (2): 171–174. doi: https://doi.org/10.1130/0091-7613(1994)022 2.3.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Field measurements of water and sediment discharge and floodplain topography, numerical simulations of hydrology, and Landsat data on sediment concentrations were combined to estimate rates of transport and the fate of water and sediment in a 200 km reach of the central Amazon River. Results from field data collected during the annual flood in July 1986 indicate that sediment was transported to the flood plain at rates ranging from 3 to 5 t ⋅ d-1 ⋅ m-1, with percentage deposition >80% yielding vertical rates of 0.8 to 1.6 cm/day. Comparable rates were calculated from geographic information system overlays of numerically simulated specific water discharge and Land-sat-derived sediment concentrations. Rates for July 31, 1977, include 4 to 18 t ⋅ d-1⋅ m-1 of transport onto the flood plain and an average of 64% deposition at vertical rates from 0.4 to 3.3 cm/d. A 1 m higher flow on August 2, 1989, yielded, on average, higher rates of transport onto the flood plain, 8 to 15 t ⋅ d-1 ⋅ m-1, but lower percentage (46%)deposition, implying vertical rates between 0.3 and 2.9 cm/d. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.