Submesoscale Processes in the Upper Red Sea

Zhan，Peng1,2; Guo，Daquan2; Krokos，George2; Dong，Jihai3; Duran，Rodrigo4,5; Hoteit，Ibrahim2

2022-03-01

10.1029/2021JC018015

JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS   影响因子和分区

2169-9275

2169-9291

Spatial-temporal submesoscale variabilities in the upper Red Sea and their generation mechanisms, including frontogenesis, mixed-layer instability (MLI), and symmetric instability (SI) are qualitatively investigated using high-resolution simulations. The results suggest that submesoscales are critical hydrodynamic components and stirring at submesoscale has a clear signal in the Red Sea, enhanced in winter, particularly in the central and northern basins, and intensified toward the eastern coast. Frontogenesis and MLI energize submesoscales with winter peaks, when SI could also be triggered by the enhanced frontal gradients and buoyancy loss that reduce the surface potential vorticity. The MLI and SI have larger (smaller) scales in winter (summer). The seasonal submesoscale variability is governed by the vertical structure of the mixed layer forced by atmospheric conditions, significantly modulating the mesoscale eddies' seasonality via an inverse cascade. This study offers new insights into understanding the Red Sea submesoscales and have potential applications to other marginal seas.

energy cascade LCS mixed-layer instability Red Sea submesoscale

SCI

英语

第一 ; 通讯

National Natural Science Foundation of China[42176023];Global Collaborative Research, King Abdullah University of Science and Technology[REP/1/3268-01-01];

Oceanography

Oceanography

WOS:000776507900034

AMER GEOPHYSICAL UNION

GEOSCIENCES

2-s2.0-85127249296

Scopus

1.Department of Ocean Science and Engineering,Southern University of Science and Technology,Shenzhen,China
2.Division of Physical Sciences and Engineering,King Abdullah University of Science and Technology,Thuwal,Saudi Arabia
3.School of Marine Sciences,Nanjing University of Information Science and Technology,Nanjing,China
4.United States Department of Energy,National Energy Technology Laboratory,Albany,United States
5.Theiss Research,La Jolla,United States

Zhan，Peng,Guo，Daquan,Krokos，George,et al. Submesoscale Processes in the Upper Red Sea[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2022,127(3).

Zhan，Peng,Guo，Daquan,Krokos，George,Dong，Jihai,Duran，Rodrigo,&Hoteit，Ibrahim.(2022).Submesoscale Processes in the Upper Red Sea.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,127(3).

Zhan，Peng,et al."Submesoscale Processes in the Upper Red Sea".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 127.3(2022).