Characteristics of Marine Heatwaves in the Japan/East Sea
Marine heatwaves (MHWs) are prolonged discrete events of anomalously warm seawater observed around the world. The occurrence of MHWs in the Japan/East Sea (JES), a middle latitude marginal sea with abundant aquatic resources, has severe impacts on marine ecosystems and human society. We used satelli...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-02-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/14/4/936 |
| _version_ | 1827652973307625472 |
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| author | Dingqi Wang Tengfei Xu Guohong Fang Shumin Jiang Guanlin Wang Zexun Wei Yonggang Wang |
| author_facet | Dingqi Wang Tengfei Xu Guohong Fang Shumin Jiang Guanlin Wang Zexun Wei Yonggang Wang |
| author_sort | Dingqi Wang |
| collection | DOAJ |
| description | Marine heatwaves (MHWs) are prolonged discrete events of anomalously warm seawater observed around the world. The occurrence of MHWs in the Japan/East Sea (JES), a middle latitude marginal sea with abundant aquatic resources, has severe impacts on marine ecosystems and human society. We used satellite remote sensing products spanning 1982–2020 to investigate the mean states and variations of JES MHWs. The results show that the JES MHWs occurred twice per year. More than 40% of the MHWs were shorter than the mean duration of 12.6 days and weaker than the mean intensity of 2.4 °C. Frequent MHWs were observed in August, while high mean intensities were observed in winter and spring in the western JES. In recent years, the area’s averaged yearly sum of MHW intensity in the JES has increased dramatically, with a positive trend of 29.62 °C days per decade—over twice the average global trend (12.37 °C days per decade), which is further confirmed by its first empirical orthogonal function mode. The strengthening trend in MHWs may be explained by oceanic dynamics rather than atmospheric forcing, and may result in increased surface latent heat flux from the ocean to the atmosphere. |
| first_indexed | 2024-03-09T21:09:36Z |
| format | Article |
| id | doaj.art-e288d22343614eaa9b5d9ae94cee0296 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-09T21:09:36Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-e288d22343614eaa9b5d9ae94cee02962023-11-23T21:54:27ZengMDPI AGRemote Sensing2072-42922022-02-0114493610.3390/rs14040936Characteristics of Marine Heatwaves in the Japan/East SeaDingqi Wang0Tengfei Xu1Guohong Fang2Shumin Jiang3Guanlin Wang4Zexun Wei5Yonggang Wang6College of Oceanic and Atmospheric Sciences, Ocean University of China, Qingdao 266061, ChinaFirst Institute of Oceanography, and Key Laboratory of Marine Science and Numerical Modeling, Ministry of Natural Resources, Qingdao 266061, ChinaFirst Institute of Oceanography, and Key Laboratory of Marine Science and Numerical Modeling, Ministry of Natural Resources, Qingdao 266061, ChinaCollege of Oceanic and Atmospheric Sciences, Ocean University of China, Qingdao 266061, ChinaFirst Institute of Oceanography, and Key Laboratory of Marine Science and Numerical Modeling, Ministry of Natural Resources, Qingdao 266061, ChinaFirst Institute of Oceanography, and Key Laboratory of Marine Science and Numerical Modeling, Ministry of Natural Resources, Qingdao 266061, ChinaFirst Institute of Oceanography, and Key Laboratory of Marine Science and Numerical Modeling, Ministry of Natural Resources, Qingdao 266061, ChinaMarine heatwaves (MHWs) are prolonged discrete events of anomalously warm seawater observed around the world. The occurrence of MHWs in the Japan/East Sea (JES), a middle latitude marginal sea with abundant aquatic resources, has severe impacts on marine ecosystems and human society. We used satellite remote sensing products spanning 1982–2020 to investigate the mean states and variations of JES MHWs. The results show that the JES MHWs occurred twice per year. More than 40% of the MHWs were shorter than the mean duration of 12.6 days and weaker than the mean intensity of 2.4 °C. Frequent MHWs were observed in August, while high mean intensities were observed in winter and spring in the western JES. In recent years, the area’s averaged yearly sum of MHW intensity in the JES has increased dramatically, with a positive trend of 29.62 °C days per decade—over twice the average global trend (12.37 °C days per decade), which is further confirmed by its first empirical orthogonal function mode. The strengthening trend in MHWs may be explained by oceanic dynamics rather than atmospheric forcing, and may result in increased surface latent heat flux from the ocean to the atmosphere.https://www.mdpi.com/2072-4292/14/4/936marine heatwaveJapan/East Seaseasonal variabilitylong-term trendsatellitesCMEMS |
| spellingShingle | Dingqi Wang Tengfei Xu Guohong Fang Shumin Jiang Guanlin Wang Zexun Wei Yonggang Wang Characteristics of Marine Heatwaves in the Japan/East Sea Remote Sensing marine heatwave Japan/East Sea seasonal variability long-term trend satellites CMEMS |
| title | Characteristics of Marine Heatwaves in the Japan/East Sea |
| title_full | Characteristics of Marine Heatwaves in the Japan/East Sea |
| title_fullStr | Characteristics of Marine Heatwaves in the Japan/East Sea |
| title_full_unstemmed | Characteristics of Marine Heatwaves in the Japan/East Sea |
| title_short | Characteristics of Marine Heatwaves in the Japan/East Sea |
| title_sort | characteristics of marine heatwaves in the japan east sea |
| topic | marine heatwave Japan/East Sea seasonal variability long-term trend satellites CMEMS |
| url | https://www.mdpi.com/2072-4292/14/4/936 |
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