The Effect of Stokes Drift and Transient Rip Currents on the Inner Shelf. Part I: No Stratification
The Effect of Stokes Drift and Transient Rip Currents on the Inner Shelf. Part I: No Stratification
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DOI:
10.1175/jpo-d-16-0076.1
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发表时间:
2017-01
影响因子:
3.5
通讯作者:
Nirnimesh Kumar;F. Feddersen
中科院分区:
文献类型:
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作者:
Nirnimesh Kumar;F. Feddersen
AbstractThis is Part II of a two-part study focused on Stokes drift and transient rip current (TRC) effects on the unstratified (Part I) and stratified (this paper) inner shelf. Part I focuses on funwaveC–Coupled Ocean–Atmosphere–Wave–Sediment Transport (COAWST) coupling and TRC effects on mixing and exchange on an unstratified inner shelf. Here, two simulations (R3 and R4) are performed on a stratified inner shelf and surfzone with typical bathymetry, stratification, and wave conditions. R3 is a COAWST-only simulation (no TRCs), while R4 has funwaveC–COAWST coupling (with TRCs). In R4, TRCs lead to patchy, near-surface cooling, vertical isotherm displacement, and increased water column mixing. For both R3 and R4, the mean Lagrangian circulation has two nearly isolated surfzones and inner-shelf overturning circulation cells, with a stronger, R4, inner-shelf circulation cell. The R4, inner-shelf, vertical velocity variability is 2–3 times stronger than a simulation with TRCs and no stratification. Relative...