Roles of Atmosphere Thermodynamic and Ocean Dynamic Processes on the Upward Trend of Summer Marine Heatwaves Occurrence in East Asian Marginal Seas
By analyzing the European Centre for Medium-Range Weather Forecasts reanalysis version 5 (ERA5) dataset, we found increased frequency of marine heatwaves (MHWs) in East Asian marginal seas (EAMS) during the boreal summer (June-July-August) in the recent past. To examine which processes are responsib...
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| Format: | Article |
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Frontiers Media S.A.
2022-05-01
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| Series: | Frontiers in Marine Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmars.2022.889500/full |
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| author | Sang-Bin Lee Sang-Wook Yeh Jeong-Seo Lee Young-Gyu Park Minho Kwon Sang-Yoon Jun Hyun-Su Jo |
| author_facet | Sang-Bin Lee Sang-Wook Yeh Jeong-Seo Lee Young-Gyu Park Minho Kwon Sang-Yoon Jun Hyun-Su Jo |
| author_sort | Sang-Bin Lee |
| collection | DOAJ |
| description | By analyzing the European Centre for Medium-Range Weather Forecasts reanalysis version 5 (ERA5) dataset, we found increased frequency of marine heatwaves (MHWs) in East Asian marginal seas (EAMS) during the boreal summer (June-July-August) in the recent past. To examine which processes are responsible for the upward trend of MHW occurrence, we performed three numerical simulations using Modular Ocean Model version 5 (MOM5) forced by ERA5 dataset. The first experiment used historical atmospheric variables to force the MOM5 for 1982 to 2020, which reasonably simulated the upward trend of MHWs as well as its dominant variability in terms of temporal and spatial structure in EAMS. The second (third) experiment is the same as in the first except that the atmosphere variables used to force the MOM5 consisted of thermodynamic (dynamic) variables only. The upward trend of MHW occurrence in EAMS is simulated in the first and the second experiment only. We argue that the atmosphere thermodynamic processes, in particular, the shortwave radiative forcing, play a key role in inducing the upward trend of MHW occurrence in EAMS during the boreal summer compared to the ocean dynamic processes. |
| first_indexed | 2024-12-12T06:02:09Z |
| format | Article |
| id | doaj.art-7b1f8286fc7f4d4aafb328b48ec5f2a4 |
| institution | Directory Open Access Journal |
| issn | 2296-7745 |
| language | English |
| last_indexed | 2024-12-12T06:02:09Z |
| publishDate | 2022-05-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Marine Science |
| spelling | doaj.art-7b1f8286fc7f4d4aafb328b48ec5f2a42022-12-22T00:35:23ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452022-05-01910.3389/fmars.2022.889500889500Roles of Atmosphere Thermodynamic and Ocean Dynamic Processes on the Upward Trend of Summer Marine Heatwaves Occurrence in East Asian Marginal SeasSang-Bin Lee0Sang-Wook Yeh1Jeong-Seo Lee2Young-Gyu Park3Minho Kwon4Sang-Yoon Jun5Hyun-Su Jo6Department of Marine Sciences and Convergent Technology, Hanyang University, ERICA, Ansan, South KoreaDepartment of Marine Sciences and Convergent Technology, Hanyang University, ERICA, Ansan, South KoreaDepartment of Marine Sciences and Convergent Technology, Hanyang University, ERICA, Ansan, South KoreaKorea Institute Ocean Science and Technology, Pusan, South KoreaKorea Institute Ocean Science and Technology, Pusan, South KoreaKorea Polar Research Institute, Incheon, South KoreaDepartment of Oceanography, Chonnam National University, Gwangju, South KoreaBy analyzing the European Centre for Medium-Range Weather Forecasts reanalysis version 5 (ERA5) dataset, we found increased frequency of marine heatwaves (MHWs) in East Asian marginal seas (EAMS) during the boreal summer (June-July-August) in the recent past. To examine which processes are responsible for the upward trend of MHW occurrence, we performed three numerical simulations using Modular Ocean Model version 5 (MOM5) forced by ERA5 dataset. The first experiment used historical atmospheric variables to force the MOM5 for 1982 to 2020, which reasonably simulated the upward trend of MHWs as well as its dominant variability in terms of temporal and spatial structure in EAMS. The second (third) experiment is the same as in the first except that the atmosphere variables used to force the MOM5 consisted of thermodynamic (dynamic) variables only. The upward trend of MHW occurrence in EAMS is simulated in the first and the second experiment only. We argue that the atmosphere thermodynamic processes, in particular, the shortwave radiative forcing, play a key role in inducing the upward trend of MHW occurrence in EAMS during the boreal summer compared to the ocean dynamic processes.https://www.frontiersin.org/articles/10.3389/fmars.2022.889500/fullmarine heatwavessea surface temperatureocean general circulation modelEast Asia marginal seasupward trend |
| spellingShingle | Sang-Bin Lee Sang-Wook Yeh Jeong-Seo Lee Young-Gyu Park Minho Kwon Sang-Yoon Jun Hyun-Su Jo Roles of Atmosphere Thermodynamic and Ocean Dynamic Processes on the Upward Trend of Summer Marine Heatwaves Occurrence in East Asian Marginal Seas Frontiers in Marine Science marine heatwaves sea surface temperature ocean general circulation model East Asia marginal seas upward trend |
| title | Roles of Atmosphere Thermodynamic and Ocean Dynamic Processes on the Upward Trend of Summer Marine Heatwaves Occurrence in East Asian Marginal Seas |
| title_full | Roles of Atmosphere Thermodynamic and Ocean Dynamic Processes on the Upward Trend of Summer Marine Heatwaves Occurrence in East Asian Marginal Seas |
| title_fullStr | Roles of Atmosphere Thermodynamic and Ocean Dynamic Processes on the Upward Trend of Summer Marine Heatwaves Occurrence in East Asian Marginal Seas |
| title_full_unstemmed | Roles of Atmosphere Thermodynamic and Ocean Dynamic Processes on the Upward Trend of Summer Marine Heatwaves Occurrence in East Asian Marginal Seas |
| title_short | Roles of Atmosphere Thermodynamic and Ocean Dynamic Processes on the Upward Trend of Summer Marine Heatwaves Occurrence in East Asian Marginal Seas |
| title_sort | roles of atmosphere thermodynamic and ocean dynamic processes on the upward trend of summer marine heatwaves occurrence in east asian marginal seas |
| topic | marine heatwaves sea surface temperature ocean general circulation model East Asia marginal seas upward trend |
| url | https://www.frontiersin.org/articles/10.3389/fmars.2022.889500/full |
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