Physics – Geophysics
Scientific paper
Jan 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008georl..3502601h&link_type=abstract
Geophysical Research Letters, Volume 35, Issue 2, CiteID L02601
Physics
Geophysics
6
Oceanography: Physical: Nearshore Processes, Oceanography: General: Numerical Modeling (0545, 0560), Oceanography: Physical: Sediment Transport (1862), Nonlinear Geophysics: Pattern Formation, Nonlinear Geophysics: Self-Organization
Scientific paper
Bedforms with plan-view patterns consisting of long crests interrupted by defects occur ubiquitously in subaqueous and subaerial environments where they strongly influence flows and sediment transport. We explore how such patterns adjust to changes in the external forcing. We utilize a numerical model of a wide-spread, large-scale seabed pattern, `sorted bedforms,' examining their response to changes in wave forcing. Numerical experiments show that the pattern adjustment progresses through two stages characterized by defect propagation and defect creation, respectively, and that the rates of the initial stage, and therefore overall pattern adjustment, are determined by the initial defect density. All characteristics of the sorted bedforms are similarly influenced by the presence of defects. Although the processes of growth are likely to be different for other types of bedforms, it is reasonable to expect they will be similarly influenced by defects in pre-existing patterns.
Bryan Karin R.
Coco Giovanni
Huntley David A.
Murray Brad A.
No associations
LandOfFree
Influence of ``defects'' on sorted bedform dynamics does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Influence of ``defects'' on sorted bedform dynamics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Influence of ``defects'' on sorted bedform dynamics will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-896532