کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9480862 | 1626719 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Wave-sediment interaction on a muddy inner shelf during Hurricane Claudette
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
زمین شناسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Measurements of wave and suspended sediment concentration (SSC) were conducted near the 5-m isobath on the muddy inner shelf fronting Atchafalaya Bay, Louisiana, during Hurricane Claudette. The data show that wave and current activity resuspended large quantities of sediment, with SSC â¥Â 0.5 kg/m3 throughout the water column. In the waning phase of the storm, settling generated a suspension layer, with concentrations over 1.7 kg/m3 measured as high as 1 m above the bottom. Numerical simulations of post-storm sediment settling showed that observations are consistent with a high-density fluid mud layer (SSC between 10 and 20 kg/m3), and separated from the upper water column by a lutocline located at about 1 m above the bottom. The formation of the fluid-mud layer is correlated with strong, broad-spectrum wave dissipation, consistent with the hypothesis that surface-interface wave interaction plays an important part in the energy transfer from the surface to the soft bottom.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Estuarine, Coastal and Shelf Science - Volume 63, Issues 1â2, April 2005, Pages 225-233
Journal: Estuarine, Coastal and Shelf Science - Volume 63, Issues 1â2, April 2005, Pages 225-233
نویسندگان
A. Sheremet, A.J. Mehta, B. Liu, G.W. Stone,