Physics – Geophysics
Scientific paper
Sep 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010georl..3718401v&link_type=abstract
Geophysical Research Letters, Volume 37, Issue 18, CiteID L18401
Physics
Geophysics
3
Marine Geology And Geophysics: Seafloor Morphology, Geology, And Geophysics, Oceanography: Physical: Hydrodynamic Modeling, Oceanography: Physical: Sediment Transport (1862), Oceanography: General: Continental Shelf And Slope Processes (3002), Marine Geology And Geophysics: Marine Sediments: Processes And Transport
Scientific paper
A new model is presented that addresses the occurrence of sorted bedforms on inner shelves of coastal seas. These features consist of alternating bands of coarse and fine grains, with small topographic undulations. We show that inherent feedbacks between alongshore currents, sea waves, bottom topography and roughness variations result in the emergence of morphological patterns, similar to the observed bed features. We find that two modes are amplified which display different characteristics, yielding a possible explanation to the diversity exhibited by sorted bedforms in the field. The results illustrate that both roughness variations and bottom topography influence the generation of sorted bedforms.
Blondeaux P.
de Swart H. E.
Van Oyen T.
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