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海洋赤潮生态模型参数优化研究
引用本文:万振文,袁业立,乔方利.海洋赤潮生态模型参数优化研究[J].海洋与湖沼,2000,31(2):205-209.
作者姓名:万振文  袁业立  乔方利
作者单位:国家海洋局第一海洋研究所,海洋环境科学和数值模拟国家海洋局重点实验室,青岛,266003
基金项目:国家海洋局青年基金!98304
摘    要:根据中日合作海洋生态围隔试验观测资料,对乔方利等1998年提出的赤潮过程生态模型(乔方利等,2000)进行参数优化研究,得到赤潮过程营养2盐半饱和常数:硅藻,KN=1.4umol/L、KP=0.129umol/L、KSi=1.16umol/L;鞭毛藻,KN=0.345umol/L、KP=0.113umol/L以及其它等共18个参数的最优取值,并详细讨论了目标泛函的构造和多目标函数参数优化的方法。

关 键 词:赤潮  生态模型  参数优化  海洋  海水污染
收稿时间:1998/6/25 0:00:00
修稿时间:1/8/1999 12:00:00 AM

STUDY OPTIMIZATION OF THE PARAMETERS or A MARINE ECOSYSTEM DYNAMICS MODEL FOR RED TIDE
WAN Zhen-wen,YUAN Ye-li and QIAO Fang-li.STUDY OPTIMIZATION OF THE PARAMETERS or A MARINE ECOSYSTEM DYNAMICS MODEL FOR RED TIDE[J].Oceanologia Et Limnologia Sinica,2000,31(2):205-209.
Authors:WAN Zhen-wen  YUAN Ye-li and QIAO Fang-li
Institution:First Institute of Oceanography, State Oceanic Administration, Key Laboratory of marine Science and Numerical Modelling, State Oceanic Administration, Qingdao, 266003;First Institute of Oceanography, State Oceanic Administration, Key Laboratory of marine Science and Numerical Modelling, State Oceanic Administration, Qingdao, 266003;First Institute of Oceanography, State Oceanic Administration, Key Laboratory of marine Science and Numerical Modelling, State Oceanic Administration, Qingdao, 266003
Abstract:Whether the ecosystem parameters were evaluated well and truly was a key factor which determines the precision of an ecosystem dynamics model; in fact an overwhelming majority of researchers specified the parameters by experience or by experiment This paper tried to construct an objective function in order to assess the validity of a common ecosystem dynamics model in advance, and then specified the parameters according to a set of equations only under the control of which the objective function could get its extremum. On different premises of in situ observations, three forms of objective functions were constructed. Each objective function was applied to optimize the parameters. Furthermore, the result of ecosystem dynamics model and the values of parameters were compared with data and literatures; the model's result came close to data more and the parameter values were under the scope of the relative values in literatures. The proposed optimization method to evaluate the ecosystem parameters was a new application of classical mathematics theory, and this method could partially replace expensive situ observation in ecology research and relevant experiments. It was more important that the preliminary numerical experiment showed this method's validity.
Keywords:Red tide Ecosystem model Parameter optimization
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