Field Studies and Computer Simulations for Controlled Degassing of Lake Nyos (U.S.-Cameroon Dissertation Enhancement Project)

这个论文增强补助金为美国研究生Stephen A. McCord在加利福尼亚大学戴维斯分校土木与环境工程系Geoffrey Schladow博士的指导下进行实地研究，并为喀麦隆Nyos湖的受控脱气开发计算机模拟。 McCord先生将访问尼奥斯湖，收集样品并记录内波活动和细尺度温度和电导率结构的数据，然后将这些数据用于尼奥斯湖的动态建模。 它的目的是模拟使用原位湖泊修复技术，以安全地降低气体浓度，这一直在增加，因为在1986年最后一次放气，并预测由于人工混合所产生的水质变化。 此外，所提出的模型可用于各种各样的湖泊和水库，以解决水质和管理问题。 雅温得大学自动化和控制实验室的工作人员将与McCord先生就这一项目进行合作。 该研究将对理解湖泊水动力学科学，特别是影响湖泊稳定性的化学和物理因素做出重要贡献。 该补助金还将提供支持，使有前途的学生建立一个强大的独立研究生涯。

This dissertation enhancement grant provides partial support for a U.S. graduate student, Stephen A. McCord, working under the guidance of Dr. Geoffrey Schladow, of the Department of Civil and Environmental Engineering at the University of California-Davis, to perform field studies and develop computer simulations for controlled degassing of Lake Nyos in Cameroon. Mr. McCord will visit Lake Nyos to collect samples and record data on internal wave activity and fine scale temperature and conductivity structures, which will then be used to model the dynamics of Lake Nyos. It is intended to model the use of in situ lake remediation techniques to safely lower the gas concentrations, which have been increasing since the last outgassing in 1986, and to predict the resulting water quality changes due to artificial mixing. Further, the proposed model may be used in a wide variety of lakes and reservoirs to address water quality and management issues. Staff members of the Automation and Control Laboratory at the University of Yaounde will collaborate with Mr. McCord on this project. This study will make an important contribution to the understanding of the science of lake hydrodynamics, especially the chemical and physical factors affecting lake stability. The grant will also provide support to enable a promising student to establish a strong independent research career.