中文版 | English
Title

A numerical study of near-inertial motions in the Mid-Atlantic Bight area induced by Hurricane Irene (2011)

Author
Corresponding AuthorYu, Xiping
Publication Years
2022-11-01
DOI
Source Title
ISSN
1812-0784
EISSN
1812-0792
Volume18Issue:6
Abstract
Hurricane Irene generated strong near-inertial currents (NICs) in ocean waters when passing over the Mid-Atlantic Bight (MAB) of the US East Coast in late August 2011. It is demonstrated that a combination of valuable field data and detailed model results can be taken advantage of to study the development and decay mechanism of this event. Numerical results obtained with the Regional Oceanic Modeling System (ROMS) are shown to agree well with the field data. Both computed and observed results show that the NICs were significant in most areas of the MAB region except in the nearshore area where the stratification was totally destroyed by the hurricane-induced strong mixing. Based on the energy budget, it is clarified that the near-inertial kinetic energy (NIKE) was mainly gained from the wind power during the hurricane event. In the deepwater region, NIKE was basically balanced by the vertical turbulence diffusion (40 %) and downward divergence (33 %), while in the continental shelf region, NIKE was mainly dissipated by the vertical turbulence diffusion (67 %) and partially by the bottom friction (24 %). Local dissipation of NIKE due to turbulence diffusion is much more closely related to the rate of the vertical shear rather than the intensity of turbulence. The strong vertical shear at the offshore side of the continental shelf led to a rapid dissipation of NIKE in this region.
URL[Source Record]
Indexed By
Language
English
SUSTech Authorship
Corresponding
Funding Project
National Natural Science Foundation of China[11732008]
WOS Research Area
Meteorology & Atmospheric Sciences ; Oceanography
WOS Subject
Meteorology & Atmospheric Sciences ; Oceanography
WOS Accession No
WOS:000877091000001
Publisher
Data Source
Web of Science
Citation statistics
Cited Times [WOS]:1
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/412147
DepartmentDepartment of Ocean Science and Engineering
Affiliation
1.Tsinghua Univ, Dept Hydraul Engn, Beijing, Peoples R China
2.Southern Univ Sci & Technol, Dept Ocean Sci & Engn, Shenzhen, Peoples R China
Corresponding Author AffilicationDepartment of Ocean Science and Engineering
Recommended Citation
GB/T 7714
Han, Peida,Yu, Xiping. A numerical study of near-inertial motions in the Mid-Atlantic Bight area induced by Hurricane Irene (2011)[J]. Ocean Science,2022,18(6).
APA
Han, Peida,&Yu, Xiping.(2022).A numerical study of near-inertial motions in the Mid-Atlantic Bight area induced by Hurricane Irene (2011).Ocean Science,18(6).
MLA
Han, Peida,et al."A numerical study of near-inertial motions in the Mid-Atlantic Bight area induced by Hurricane Irene (2011)".Ocean Science 18.6(2022).
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