Upwelling processes driven by contributions from wind and current in the Southwest East Sea (Japan Sea)
The occurrence of coastal upwelling is influenced by the intensity and duration of sea surface wind stress and geophysical components such as vertical stratification, bottom topography, and the entrainment of water masses. In addition, strong alongshore currents can drive upwelling. Accordingly, thi...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-05-01
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| Series: | Frontiers in Marine Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmars.2023.1165366/full |
| _version_ | 1827955958020571136 |
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| author | Deoksu Kim Deoksu Kim Jang-Geun Choi Jinku Park Jae-Il Kwon Jae-Il Kwon Myeong-Hyeon Kim Myeong-Hyeon Kim Young-Heon Jo Young-Heon Jo |
| author_facet | Deoksu Kim Deoksu Kim Jang-Geun Choi Jinku Park Jae-Il Kwon Jae-Il Kwon Myeong-Hyeon Kim Myeong-Hyeon Kim Young-Heon Jo Young-Heon Jo |
| author_sort | Deoksu Kim |
| collection | DOAJ |
| description | The occurrence of coastal upwelling is influenced by the intensity and duration of sea surface wind stress and geophysical components such as vertical stratification, bottom topography, and the entrainment of water masses. In addition, strong alongshore currents can drive upwelling. Accordingly, this study analyzes how wind stress and ocean currents contribute to changing coastal upwelling along the southwest coast of the East Sea (Japan Sea), which has not yet been reported quantitatively. This study aims to estimate each geophysical factor affecting upwelling processes using the Upwelling Age index. The index assesses the major contributors to the upwelling process using the relationship between physical forcing and upwelling water fraction estimated from shipboard hydrographic data from January 1993 to October 2018. These findings reveal that wind-driven upwelling was dominant off the northern coast. In contrast, current-driven upwelling prevailed off the southern coast. These results suggest that persistent alongshore currents through the Korea Strait make the southern region a prolific upwelling area. Accordingly, it can shed light on the mechanisms of coastal upwelling in the study area, which is crucial for understanding the influence of physical forces on ocean ecosystems. |
| first_indexed | 2024-04-09T14:56:04Z |
| format | Article |
| id | doaj.art-22daaef8aaac45358b0a711e8f4cc7a2 |
| institution | Directory Open Access Journal |
| issn | 2296-7745 |
| language | English |
| last_indexed | 2024-04-09T14:56:04Z |
| publishDate | 2023-05-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Marine Science |
| spelling | doaj.art-22daaef8aaac45358b0a711e8f4cc7a22023-05-02T05:05:22ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452023-05-011010.3389/fmars.2023.11653661165366Upwelling processes driven by contributions from wind and current in the Southwest East Sea (Japan Sea)Deoksu Kim0Deoksu Kim1Jang-Geun Choi2Jinku Park3Jae-Il Kwon4Jae-Il Kwon5Myeong-Hyeon Kim6Myeong-Hyeon Kim7Young-Heon Jo8Young-Heon Jo9Coastal Disaster and Safety Research Department, Korea Institute of Ocean Science and Technology, Busan, Republic of KoreaDepartment of Ocean Science, University of Science and Technology (UST), Daejeon, Republic of KoreaCenter for Ocean Engineering, University of New Hampshire, Durham, NH, United StatesCenter of Remote Sensing and GIS, Korea Polar Research Institute, Incheon, Republic of KoreaCoastal Disaster and Safety Research Department, Korea Institute of Ocean Science and Technology, Busan, Republic of KoreaDepartment of Ocean Science, University of Science and Technology (UST), Daejeon, Republic of KoreaCenter for Climate Physics, Institute for Basic Science (IBS), Busan, Republic of KoreaDepartment of Climate System, Pusan National University, Busan, Republic of KoreaBK21 School of Earth Environmental Systems, Pusan National University, Busan, Republic of KoreaDepartment of Oceanography and Marine Research Institute, Pusan National University, Busan, Republic of KoreaThe occurrence of coastal upwelling is influenced by the intensity and duration of sea surface wind stress and geophysical components such as vertical stratification, bottom topography, and the entrainment of water masses. In addition, strong alongshore currents can drive upwelling. Accordingly, this study analyzes how wind stress and ocean currents contribute to changing coastal upwelling along the southwest coast of the East Sea (Japan Sea), which has not yet been reported quantitatively. This study aims to estimate each geophysical factor affecting upwelling processes using the Upwelling Age index. The index assesses the major contributors to the upwelling process using the relationship between physical forcing and upwelling water fraction estimated from shipboard hydrographic data from January 1993 to October 2018. These findings reveal that wind-driven upwelling was dominant off the northern coast. In contrast, current-driven upwelling prevailed off the southern coast. These results suggest that persistent alongshore currents through the Korea Strait make the southern region a prolific upwelling area. Accordingly, it can shed light on the mechanisms of coastal upwelling in the study area, which is crucial for understanding the influence of physical forces on ocean ecosystems.https://www.frontiersin.org/articles/10.3389/fmars.2023.1165366/fullcoastal upwellingupwelling age (UA)Burger numberwind driven upwellingcurrent driven upwelling |
| spellingShingle | Deoksu Kim Deoksu Kim Jang-Geun Choi Jinku Park Jae-Il Kwon Jae-Il Kwon Myeong-Hyeon Kim Myeong-Hyeon Kim Young-Heon Jo Young-Heon Jo Upwelling processes driven by contributions from wind and current in the Southwest East Sea (Japan Sea) Frontiers in Marine Science coastal upwelling upwelling age (UA) Burger number wind driven upwelling current driven upwelling |
| title | Upwelling processes driven by contributions from wind and current in the Southwest East Sea (Japan Sea) |
| title_full | Upwelling processes driven by contributions from wind and current in the Southwest East Sea (Japan Sea) |
| title_fullStr | Upwelling processes driven by contributions from wind and current in the Southwest East Sea (Japan Sea) |
| title_full_unstemmed | Upwelling processes driven by contributions from wind and current in the Southwest East Sea (Japan Sea) |
| title_short | Upwelling processes driven by contributions from wind and current in the Southwest East Sea (Japan Sea) |
| title_sort | upwelling processes driven by contributions from wind and current in the southwest east sea japan sea |
| topic | coastal upwelling upwelling age (UA) Burger number wind driven upwelling current driven upwelling |
| url | https://www.frontiersin.org/articles/10.3389/fmars.2023.1165366/full |
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