Effects of Typhoon Chanthu on Marine Chlorophyll a, Temperature and Salinity
A typhoon is a severe weather process in tropical oceans. Typhoon transit is often accompanied by strong convective weather, such as gales and rainstorms, which threatens fishery, property, and human safety. In this study, the effects of typhoon Chanthu on chlorophyll a (Chl a), temperature, and oce...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-09-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/14/10/1505 |
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| author | Jushang Wang Biyun Guo Zhaokang Ji Yingliang Che Venkata Subrahmanyam Mantravadi |
| author_facet | Jushang Wang Biyun Guo Zhaokang Ji Yingliang Che Venkata Subrahmanyam Mantravadi |
| author_sort | Jushang Wang |
| collection | DOAJ |
| description | A typhoon is a severe weather process in tropical oceans. Typhoon transit is often accompanied by strong convective weather, such as gales and rainstorms, which threatens fishery, property, and human safety. In this study, the effects of typhoon Chanthu on chlorophyll a (Chl a), temperature, and ocean surface salinity are analyzed using remote sensing data. The results illustrate that before the transit of Chanthu (6–12 September), the mean concentration of Chl a and sea surface salinity (SSS) are low (0.74 mg/m<sup>3</sup>, 30.59 psu, respectively), while the mean sea surface temperature (SST) is high (29.01 °C). After the typhoon transits (13–30 September), the mean Chl a concentration and salinity increase (1.29 mg/m<sup>3</sup>, 30.87 psu respectively), while the mean SST decrease (27.43 °C). The Ekman pumping transports nutrients from the deep ocean to the surface layer, promotes the photosynthesis of surface phytoplankton, and increases the concentration of sea surface Chl a. Typhoon Chanthu causes the mixing and entrainment of the upper ocean, which causes the deep cold water of the ocean to rise into the mixed layer and cause the SST to decrease. Severe vertical mixing transports deep high-salt water to the surface, causing SSS to rise. The results of this study have important scientific significance and application value for developing coastal economy, aquaculture, and fishery. |
| first_indexed | 2024-03-10T21:27:17Z |
| format | Article |
| id | doaj.art-40b3abe5ddc0493c82e0a42fe4181feb |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-10T21:27:17Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-40b3abe5ddc0493c82e0a42fe4181feb2023-11-19T15:35:58ZengMDPI AGAtmosphere2073-44332023-09-011410150510.3390/atmos14101505Effects of Typhoon Chanthu on Marine Chlorophyll a, Temperature and SalinityJushang Wang0Biyun Guo1Zhaokang Ji2Yingliang Che3Venkata Subrahmanyam Mantravadi4Marine Science and Technology College, Zhejiang Ocean University, Zhoushan 316022, ChinaMarine Science and Technology College, Zhejiang Ocean University, Zhoushan 316022, ChinaMarine Science and Technology College, Zhejiang Ocean University, Zhoushan 316022, ChinaMarine Science and Technology College, Zhejiang Ocean University, Zhoushan 316022, ChinaCollege of Marine Science and Technology, Hainan Tropical Ocean University, Sanya 572022, ChinaA typhoon is a severe weather process in tropical oceans. Typhoon transit is often accompanied by strong convective weather, such as gales and rainstorms, which threatens fishery, property, and human safety. In this study, the effects of typhoon Chanthu on chlorophyll a (Chl a), temperature, and ocean surface salinity are analyzed using remote sensing data. The results illustrate that before the transit of Chanthu (6–12 September), the mean concentration of Chl a and sea surface salinity (SSS) are low (0.74 mg/m<sup>3</sup>, 30.59 psu, respectively), while the mean sea surface temperature (SST) is high (29.01 °C). After the typhoon transits (13–30 September), the mean Chl a concentration and salinity increase (1.29 mg/m<sup>3</sup>, 30.87 psu respectively), while the mean SST decrease (27.43 °C). The Ekman pumping transports nutrients from the deep ocean to the surface layer, promotes the photosynthesis of surface phytoplankton, and increases the concentration of sea surface Chl a. Typhoon Chanthu causes the mixing and entrainment of the upper ocean, which causes the deep cold water of the ocean to rise into the mixed layer and cause the SST to decrease. Severe vertical mixing transports deep high-salt water to the surface, causing SSS to rise. The results of this study have important scientific significance and application value for developing coastal economy, aquaculture, and fishery.https://www.mdpi.com/2073-4433/14/10/1505Chanthuchlorophyll atemperaturesalinity |
| spellingShingle | Jushang Wang Biyun Guo Zhaokang Ji Yingliang Che Venkata Subrahmanyam Mantravadi Effects of Typhoon Chanthu on Marine Chlorophyll a, Temperature and Salinity Atmosphere Chanthu chlorophyll a temperature salinity |
| title | Effects of Typhoon Chanthu on Marine Chlorophyll a, Temperature and Salinity |
| title_full | Effects of Typhoon Chanthu on Marine Chlorophyll a, Temperature and Salinity |
| title_fullStr | Effects of Typhoon Chanthu on Marine Chlorophyll a, Temperature and Salinity |
| title_full_unstemmed | Effects of Typhoon Chanthu on Marine Chlorophyll a, Temperature and Salinity |
| title_short | Effects of Typhoon Chanthu on Marine Chlorophyll a, Temperature and Salinity |
| title_sort | effects of typhoon chanthu on marine chlorophyll a temperature and salinity |
| topic | Chanthu chlorophyll a temperature salinity |
| url | https://www.mdpi.com/2073-4433/14/10/1505 |
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