Characteristics and influencing factors of frontal upwelling in the Yellow Sea in summer

Fan Sun; Fei Yu; Guangcheng Si; Jianfeng Wang; Anqi Xu; Jun Pan; Ying Tang

doi:10.1007/s13131-021-1967-z

Volume 41 Issue 7

Jul. 2022

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Article Navigation > Acta Oceanologica Sinica > 2022 > 41(7): 84-96

Fan Sun, Fei Yu, Guangcheng Si, Jianfeng Wang, Anqi Xu, Jun Pan, Ying Tang. Characteristics and influencing factors of frontal upwelling in the Yellow Sea in summer[J]. Acta Oceanologica Sinica, 2022, 41(7): 84-96. doi: 10.1007/s13131-021-1967-z

Citation:

Fan Sun, Fei Yu, Guangcheng Si, Jianfeng Wang, Anqi Xu, Jun Pan, Ying Tang. Characteristics and influencing factors of frontal upwelling in the Yellow Sea in summer[J]. Acta Oceanologica Sinica, 2022, 41(7): 84-96. doi: 10.1007/s13131-021-1967-z

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Characteristics and influencing factors of frontal upwelling in the Yellow Sea in summer

doi: 10.1007/s13131-021-1967-z

Fan Sun^{1, 2, 3, 4},
Fei Yu^{1, 3, 4, 5, 6
,
,},
Guangcheng Si^{1, 3, 4},
Jianfeng Wang^{1, 3, 4},
Anqi Xu^{1, 3, 4},
Jun Pan^{1, 3, 4, 7},
Ying Tang^{1, 3, 4}

1.
Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
2.
Tianjin Navigation Instruments Research Institute, Tianjin 300131, China
3.
University of Chinese Academy of Sciences, Beijing 100049, China
4.
Key Laboratory of Ocean Circulation and Waves, Chinese Academy of Sciences, Qingdao 266071, China
5.
Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
6.
Laboratory for Ocean Dynamics and Climate, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
7.
Center for Marine Environmental Engineering, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China

Funds: The National Key Research and Development Project under contract No. 2017YFC1403400; the National Key Research and Development Program of China under contract No. 2016YFC1402501; the National Natural Science Foundation of China under contract No. 41806164; the Open Fund Project of Key Laboratory of Marine Environmental Information Technology, Ministry of Natural Resources; the Shandong Joint Fund for Marine Science Research Centers under contract No. U1406401.

More Information

Corresponding author: E-mail: yuf@qdio.ac.cn
Received Date: 2021-04-13
Accepted Date: 2021-09-30

Available Online: 2022-03-16

Publish Date: 2022-07-08

Abstract

Abstract

Frontal upwelling is an important phenomenon in summer in the Yellow Sea (YS) and plays an essential role in the distribution of nutrients and biological species. In this paper, a three-dimensional hydrodynamic model is applied to investigate the characteristics and influencing factors of frontal upwelling in the YS. The results show that the strength and distribution of frontal upwelling are largely dependent on the topography and bottom temperature fronts. The frontal upwelling in the YS is stronger and narrower near the eastern coast than near the western coast due to the steeper shelf slope. Moreover, external forcings, such as the meridional wind speed and air temperature in summer and the air temperature in the preceding winter and spring, have certain influences on the strength of frontal upwelling. An increase in air temperature in the previous winter and spring weakens the frontal upwelling in summer; in contrast, an increase in air temperature in summer strengthens the frontal upwelling. When the southerly wind in summer increases, the upwelling intensifies in the western YS and weakens in the eastern YS. The air temperature influences the strength of upwelling by changing the baroclinicity in the frontal region. Furthermore, the meridional wind speed in summer affects frontal upwelling via Ekman pumping.
- influencing factors,
- Yellow Sea,
- frontal upwelling,
- bottom temperature fronts,
- numerical study

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References(49)

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