Sediment Fluxes from California Coastal Rivers: The Influences of Climate, Geology, and Topography
| Autor: | Ronald C. Antweiler, E. D. Andrews |
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| Rok vydání: | 2012 |
| Předmět: | |
| Zdroj: | The Journal of Geology. 120:349-366 |
| ISSN: | 1537-5269 0022-1376 |
| Popis: | The influences of geologic and climatic factors on erosion and sedimentation processes in rivers draining the western flank of the California Coast Range are assessed. Annual suspended, bedload, and total sediment fluxes were determined for 16 river basins that have hydrologic records covering all or most of the period from 1950 to 2006 and have been relatively unaffected by flow storage, regulation, and depletion, which alter the downstream movement of water and sediment. The occurrence of relatively large annual sediment fluxes are strongly influenced by the El Nino–Southern Oscillation (ENSO) and the Pacific Decadal Oscillation (PDO). The frequency of relatively large annual sediment fluxes decreases from north to south during La Nina phases and increases from north to south during El Nino phases. The influence of ENSO is modulated over a period of decades by the PDO, such that relatively large annual sediment fluxes are more frequent during a La Nina phase in conjunction with a cool PDO and du... |
| Databáze: | OpenAIRE |
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