Sensitivity of Chlorophyll Variability to Specific Growth Rate of Phytoplankton Equation over the Yangtze River Estuary in a Physical–Biogeochemical Model
In addition to nutrients and light, temperature plays a crucial role in marine biogeochemical processes. In this study, the sensitivity of the growth rate of phytoplankton to temperature was systematically studied by using a two-level nested physical–biogeochemical coupled model for the Yangtze Rive...
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| Format: | Article |
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MDPI AG
2022-10-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/13/11/1748 |
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| author | Qiong Wu Xiaochun Wang Peng Xiu Fei Chai Zhongxiao Chen |
| author_facet | Qiong Wu Xiaochun Wang Peng Xiu Fei Chai Zhongxiao Chen |
| author_sort | Qiong Wu |
| collection | DOAJ |
| description | In addition to nutrients and light, temperature plays a crucial role in marine biogeochemical processes. In this study, the sensitivity of the growth rate of phytoplankton to temperature was systematically studied by using a two-level nested physical–biogeochemical coupled model for the Yangtze River estuary of the East China Sea. The physical component of the coupled model is configured from the Regional Ocean Modeling System (ROMS) with the highest horizontal resolution of 3 km. The biogeochemical component of the coupled model is based on the carbon, silicon and nitrogen ecosystem model (CoSiNE). Five specific growth rate of phytoplankton equations with different relation to temperature were tested with the objective of reproducing the temporal evolution of chlorophyll concentration as observed by SeaWiFS. Our results indicate that the specific growth rate of phytoplankton equation which is from Geider’s work, reaches a maximum at 22 °C and remains constant with higher temperature, can reproduce the seasonal variation of chlorophyll very well, and may be suitable for application in the physical–biogeochemical coupled model (ROMS-CoSiNE) of the Yangtze River estuary. |
| first_indexed | 2024-03-09T19:17:32Z |
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| id | doaj.art-d5c5c48ea9df42af90d22ffeb88212b5 |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-09T19:17:32Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
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| series | Atmosphere |
| spelling | doaj.art-d5c5c48ea9df42af90d22ffeb88212b52023-11-24T03:41:35ZengMDPI AGAtmosphere2073-44332022-10-011311174810.3390/atmos13111748Sensitivity of Chlorophyll Variability to Specific Growth Rate of Phytoplankton Equation over the Yangtze River Estuary in a Physical–Biogeochemical ModelQiong Wu0Xiaochun Wang1Peng Xiu2Fei Chai3Zhongxiao Chen4Marine Science and Technology College, Zhejiang Ocean University, Zhoushan 316000, ChinaSchool of Marine Sciences, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaState Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510000, ChinaSchool of Marine Science, University of Maine, Orono, ME 5706, USASchool of Marine Sciences, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaIn addition to nutrients and light, temperature plays a crucial role in marine biogeochemical processes. In this study, the sensitivity of the growth rate of phytoplankton to temperature was systematically studied by using a two-level nested physical–biogeochemical coupled model for the Yangtze River estuary of the East China Sea. The physical component of the coupled model is configured from the Regional Ocean Modeling System (ROMS) with the highest horizontal resolution of 3 km. The biogeochemical component of the coupled model is based on the carbon, silicon and nitrogen ecosystem model (CoSiNE). Five specific growth rate of phytoplankton equations with different relation to temperature were tested with the objective of reproducing the temporal evolution of chlorophyll concentration as observed by SeaWiFS. Our results indicate that the specific growth rate of phytoplankton equation which is from Geider’s work, reaches a maximum at 22 °C and remains constant with higher temperature, can reproduce the seasonal variation of chlorophyll very well, and may be suitable for application in the physical–biogeochemical coupled model (ROMS-CoSiNE) of the Yangtze River estuary.https://www.mdpi.com/2073-4433/13/11/1748physical–biogeochemical modelsea surface temperaturespecific growth rate of phytoplankton equationchlorophyll concentrationYangtze River estuary |
| spellingShingle | Qiong Wu Xiaochun Wang Peng Xiu Fei Chai Zhongxiao Chen Sensitivity of Chlorophyll Variability to Specific Growth Rate of Phytoplankton Equation over the Yangtze River Estuary in a Physical–Biogeochemical Model Atmosphere physical–biogeochemical model sea surface temperature specific growth rate of phytoplankton equation chlorophyll concentration Yangtze River estuary |
| title | Sensitivity of Chlorophyll Variability to Specific Growth Rate of Phytoplankton Equation over the Yangtze River Estuary in a Physical–Biogeochemical Model |
| title_full | Sensitivity of Chlorophyll Variability to Specific Growth Rate of Phytoplankton Equation over the Yangtze River Estuary in a Physical–Biogeochemical Model |
| title_fullStr | Sensitivity of Chlorophyll Variability to Specific Growth Rate of Phytoplankton Equation over the Yangtze River Estuary in a Physical–Biogeochemical Model |
| title_full_unstemmed | Sensitivity of Chlorophyll Variability to Specific Growth Rate of Phytoplankton Equation over the Yangtze River Estuary in a Physical–Biogeochemical Model |
| title_short | Sensitivity of Chlorophyll Variability to Specific Growth Rate of Phytoplankton Equation over the Yangtze River Estuary in a Physical–Biogeochemical Model |
| title_sort | sensitivity of chlorophyll variability to specific growth rate of phytoplankton equation over the yangtze river estuary in a physical biogeochemical model |
| topic | physical–biogeochemical model sea surface temperature specific growth rate of phytoplankton equation chlorophyll concentration Yangtze River estuary |
| url | https://www.mdpi.com/2073-4433/13/11/1748 |
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