Possibility and limitaion of numerical simulation for harmful algae to assess the coastal environment

2015 Fiscal Year Final Research Report

• Project/Area Number: 24560626
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Hydraulic engineering
• Research Institution: Kagoshima University
• Principal Investigator: Adachi Takahiro 鹿児島大学, 理工学域工学系, 教授 (50325502)
• Co-Investigator(Kenkyū-buntansha): Saita Tomonori 鹿児島大学, 学術研究院, 理工学域工学系准教授 (80432863)
• Co-Investigator(Renkei-kenkyūsha): Maeda Hiroto 農水産獣医学域水産学系 (80238873)
• Project Period (FY): 2012-04-01 – 2016-03-31
• Keywords: シャットネラ / 赤潮 / 鹿児島湾 / 八代海 / ダム貯水池

Outline of Final Research Achievements

In order to establish a practical numerical model for harmful algae, it is indispensable to utilize highly frequently obtained observational data. Therefore, we carried out the field observations to collect such data. As a result, the representative water quality data were obtained almost every 1 day during the blooming of Chattonella marina in Kagoshima Bay in 2015.
Then, we investigated the limitation and possibility of the numerical simulations using a harmful algae model. Consequently, it was clarified two model parameters(one is the ratio of carbon to Chlorophyll.a of phytoplankton, another is subsistent cell-quota) would change largely the calculation results. To enhance the applicability of the numerical simulation model for harmful algae, it seems to be important to establish the method for the determination of the valueｓ of these parameters, because the scientific grounds of their recommended values are insufficient.

Free Research Field

水工学