| 中国近海生态动力学模型参数敏感性研究 |
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| 引用本文： | 季轩梁,刘桂梅,高姗,王辉.中国近海生态动力学模型参数敏感性研究[J].海洋学报(英文版),2015,34(12):51-60. |
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| 作者姓名： | 季轩梁 刘桂梅 高姗 王辉 |
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| 作者单位： | 国家海洋环境预报中心, 北京 100081, 中国;国家海洋局海洋灾害预报技术研究重点实验室, 北京 100081, 中国,国家海洋环境预报中心, 北京 100081, 中国;国家海洋局海洋灾害预报技术研究重点实验室, 北京 100081, 中国,国家海洋环境预报中心, 北京 100081, 中国;国家海洋局海洋灾害预报技术研究重点实验室, 北京 100081, 中国,国家海洋环境预报中心, 北京 100081, 中国;国家海洋局海洋灾害预报技术研究重点实验室, 北京 100081, 中国 |
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| 基金项目： | The National Natural Science Foundation of China under contract Nos 41206023, 41222038 and 41076011; the National Basic Research Project (973 Program) of China under contract No. 2011CB403606; the China-Korea Joint Ocean Research Center "Cooperation on the Development of Basic Technologies for the Yellow Sea and East China Sea Operational Oceanographic System (YOOS)"; the Public Science and Technology Research Funds Projects of Ocean under contrcat No. 201205018; the "Strategic Priority Research Program" of the Chinese Academy of Sciences,under contract No. XDA01020304. |
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| 摘 要： | In order to develop a coupled basin scale model of ocean circulation and biogeochemical cycling,we present a biogeochemical model including 12 components to study the ecosystem in the China coastal seas(CCS).The formulation of phytoplankton mortality and zooplankton growth are modified according to biological characteristics of CCS.The four sensitivity biological parameters,zooplankton assimilation efficiency rate(ZooAE_N),zooplankton basal metabolism rate(ZooBM),maximum specific growth rate of zooplankton(μ_(20)) and maximum chlorophyll to carbon ratio(Chl2C_m) are obtained in sensitivity experiments for the phytoplankton,and experiments about the parameter μ_(20'),half-saturation for phytoplankton NO_3 uptake(K_(NO_3)) and remineralization rate of small detritusN(SDeRRN) are conducted.The results demonstrate that the biogeochemical model is quite sensitive to the zooplankton grazing parameter when it ranges from 0.1 to 1.2 d~(-1).The K_(NO_3) and SDeRRN also play an important role in determining the nitrogen cycle within certain ranges.The sensitive interval of KNO_3 is from 0.1 to 1.5(mmol/m~3)~(-1),and interval of SEdRRN is from 0.01 and 0.1 d~(-1).The observational data from September 1998 to July 2000 obtained at SEATS station are used to validate the performance of biological model after parameters optimization.The results show that the modified model has a good capacity to reveal the biological process features,and the sensitivity analysis can save computational resources greatly during the model simulation.
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| 关 键 词： | 中国近海 生物地球化学模型 参数敏感性 |
| 收稿时间： | 2015/7/20 0:00:00 |
| 修稿时间： | 2015/9/21 0:00:00 |
Parameter sensitivity study of the biogeochemical model in the China coastal seas |
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| JI Xuanliang,LIU Guimei,GAO Shan and WANG Hui.Parameter sensitivity study of the biogeochemical model in the China coastal seas[J].Acta Oceanologica Sinica,2015,34(12):51-60. |
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| Authors: | JI Xuanliang LIU Guimei GAO Shan and WANG Hui |
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| Affiliation: | National Marine Environmental Forecasting Center, Beijing 100081, China;Key Laboratory of Research on Marine Hazards Forecasting, National Marine Environmental Forecasting Center, Beijing 100081, China |
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| Abstract: | In order to develop a coupled basin scale model of ocean circulation and biogeochemical cycling, we present a biogeochemical model including 12 components to study the ecosystem in the China coastal seas (CCS). The formulation of phytoplankton mortality and zooplankton growth are modified according to biological characteristics of CCS.The four sensitivity biological parameters, zooplankton assimilation efficiency rate (ZooAE_N), zooplankton basal metabolism rate (ZooBM), maximum specific growth rate of zooplankton (μ20) and maximum chlorophyll to carbon ratio (Chl2C_m) are obtained in sensitivity experiments for the phytoplankton, and experiments about the parameter μ20, half-saturation for phytoplankton NO3 uptake (KNO3) and remineralization rate of small detritusN (SDeRRN) are conducted. The results demonstrate that the biogeochemical model is quite sensitive to the zooplankton grazing parameter when it ranges from 0.1 to 1.2 d-1. The KNO3 and SDeRRN also play an important role in determining the nitrogen cycle within certain ranges.The sensitive interval of KNO3 is from 0.1 to 1.5(mmol/m3)-1, and interval of SEdRRN is from 0.01 and 0.1 d-1. The observational data from September 1998 to July 2000 obtained at SEATS station are used to validate the performance of biological model after parameters optimization. The results show that the modified model has a good capacity to reveal the biological process features, and the sensitivity analysis can save computational resources greatly during the model simulation. |
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| Keywords: | China coastal seas biogeochemical model parameter sensitivity |
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