Phytoplankton Blooms Triggered by Anticyclonic Eddy and Cyclonic Eddy during Tropical Cyclone Nada
Tropical cyclone (TC) Nada occurred in the southwestern Bay of Bengal (BOB) in the winter of 2016. With high photosynthetically available radiation (PAR) and minimal precipitation, phytoplankton blooms occurred from offshore to nearshore respectively. In this study, there was an pre-existed ocean ed...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Stockholm University Press
2023-01-01
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| Series: | Tellus: Series A, Dynamic Meteorology and Oceanography |
| Online Access: | https://a.tellusjournals.se/articles/147 |
| _version_ | 1811173054466752512 |
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| author | Xueting Xing Shengzhe Luo Honghua Zhang Jianqing Shi Haibin Lü |
| author_facet | Xueting Xing Shengzhe Luo Honghua Zhang Jianqing Shi Haibin Lü |
| author_sort | Xueting Xing |
| collection | DOAJ |
| description | Tropical cyclone (TC) Nada occurred in the southwestern Bay of Bengal (BOB) in the winter of 2016. With high photosynthetically available radiation (PAR) and minimal precipitation, phytoplankton blooms occurred from offshore to nearshore respectively. In this study, there was an pre-existed ocean eddy pair on the left and right sides of Nada’s path before its passage, we studied the different mechanisms of phytoplankton blooms caused by TC Nada and the ocean eddy pair with satellite observation, multisource reanalysis products, and Argo float data. An anticyclonic eddy near Sri Lanka was weakened during Nada and horizontal transport of chlorophyll-a (Chl-a) balanced the inhibition effect of anticyclone on Chl-a. Near the anticyclonic eddy’s periphery, an upwelling above the thermocline was enhanced by Nada which promoted the uplift of nutrient-rich deep-water. Meanwhile, the large cyclonic eddy in the northern Bay of Bengal was strengthened by Nada, with the vorticity increasing from 0.19 s–1 to 0.28 s–1. Significant inertial oscillation (~2 days period) happened in the subsurface layer, leading to strong vertical mixing and upwelling and subsequently causing the offshore surface Chl-a bloom. This study provides new insights to evaluate typhoons and ocean eddies that induce biological responses in the future. |
| first_indexed | 2024-04-10T17:40:31Z |
| format | Article |
| id | doaj.art-df3e59c5fe1f4b8d84188810173537c7 |
| institution | Directory Open Access Journal |
| issn | 1600-0870 |
| language | English |
| last_indexed | 2024-04-10T17:40:31Z |
| publishDate | 2023-01-01 |
| publisher | Stockholm University Press |
| record_format | Article |
| series | Tellus: Series A, Dynamic Meteorology and Oceanography |
| spelling | doaj.art-df3e59c5fe1f4b8d84188810173537c72023-02-03T14:17:59ZengStockholm University PressTellus: Series A, Dynamic Meteorology and Oceanography1600-08702023-01-0175110.16993/tellusa.1473191Phytoplankton Blooms Triggered by Anticyclonic Eddy and Cyclonic Eddy during Tropical Cyclone NadaXueting Xing0Shengzhe Luo1Honghua Zhang2Jianqing Shi3Haibin Lü4Jiangsu Key Laboratory of Marine Bioresources and Environment /Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang, Jiangsu province; School of Marine Technology and Geomatics, Jiangsu Ocean University, Lianyungang, Jiangsu province; Lianyungang Meteorological Bureau, Lianyungang, Jiangsu provinceSchool of Marine Technology and Geomatics, Jiangsu Ocean University, Lianyungang, Jiangsu provinceLianyungang Meteorological Bureau, Lianyungang, Jiangsu provinceJiangsu Key Laboratory of Marine Bioresources and Environment /Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang, Jiangsu province; School of Marine Technology and Geomatics, Jiangsu Ocean University, Lianyungang, Jiangsu provinceJiangsu Key Laboratory of Marine Bioresources and Environment /Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang, Jiangsu province; Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang, Jiangsu province; School of Marine Technology and Geomatics, Jiangsu Ocean University, Lianyungang, Jiangsu provinceTropical cyclone (TC) Nada occurred in the southwestern Bay of Bengal (BOB) in the winter of 2016. With high photosynthetically available radiation (PAR) and minimal precipitation, phytoplankton blooms occurred from offshore to nearshore respectively. In this study, there was an pre-existed ocean eddy pair on the left and right sides of Nada’s path before its passage, we studied the different mechanisms of phytoplankton blooms caused by TC Nada and the ocean eddy pair with satellite observation, multisource reanalysis products, and Argo float data. An anticyclonic eddy near Sri Lanka was weakened during Nada and horizontal transport of chlorophyll-a (Chl-a) balanced the inhibition effect of anticyclone on Chl-a. Near the anticyclonic eddy’s periphery, an upwelling above the thermocline was enhanced by Nada which promoted the uplift of nutrient-rich deep-water. Meanwhile, the large cyclonic eddy in the northern Bay of Bengal was strengthened by Nada, with the vorticity increasing from 0.19 s–1 to 0.28 s–1. Significant inertial oscillation (~2 days period) happened in the subsurface layer, leading to strong vertical mixing and upwelling and subsequently causing the offshore surface Chl-a bloom. This study provides new insights to evaluate typhoons and ocean eddies that induce biological responses in the future.https://a.tellusjournals.se/articles/147 |
| spellingShingle | Xueting Xing Shengzhe Luo Honghua Zhang Jianqing Shi Haibin Lü Phytoplankton Blooms Triggered by Anticyclonic Eddy and Cyclonic Eddy during Tropical Cyclone Nada Tellus: Series A, Dynamic Meteorology and Oceanography |
| title | Phytoplankton Blooms Triggered by Anticyclonic Eddy and Cyclonic Eddy during Tropical Cyclone Nada |
| title_full | Phytoplankton Blooms Triggered by Anticyclonic Eddy and Cyclonic Eddy during Tropical Cyclone Nada |
| title_fullStr | Phytoplankton Blooms Triggered by Anticyclonic Eddy and Cyclonic Eddy during Tropical Cyclone Nada |
| title_full_unstemmed | Phytoplankton Blooms Triggered by Anticyclonic Eddy and Cyclonic Eddy during Tropical Cyclone Nada |
| title_short | Phytoplankton Blooms Triggered by Anticyclonic Eddy and Cyclonic Eddy during Tropical Cyclone Nada |
| title_sort | phytoplankton blooms triggered by anticyclonic eddy and cyclonic eddy during tropical cyclone nada |
| url | https://a.tellusjournals.se/articles/147 |
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