Modelling "non-wedge-shaped" groundwater-seawater interactions under climate change and urbanization impacts and its implications for coastal development at the inner Tokyo Bay Area

模拟气候变化和城市化影响下的“非楔形”地下水-海水相互作用及其对东京湾内区沿海发展的影响

• 批准号: 17J03852
• 负责人: Liu Jiaqi
• 金额: $ 1.79万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2017
• 资助国家: 日本
• 起止时间: 2017-04-26 至 2020-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17J03852/
• 关键词: Numerical model; groundwater-seawater; Numerical modeling; conceptual model; Niijima Island; geophysical survey; Revised; Numerical Model; Kujukuri Plain; Coastal Progradation; Conceptual Model

Laboratory research activities: The simulation results of variable-density flow and mass transport under horizontal groundwater flow in porous media were analyzed. The numerical approach was then applied to simulate the tsunami-induced seawater intrusion and aquifer recovery processes in the Niijima Island under future tsunami scenarios using both 2D and 3D models. These simulation results could provide understanding of the physical process and driving force for investigating the non-wedge-shaped groundwater-seawater interactions in the Tokyo Bay Area.Fieldworks: The simulations results of the field-based models were presented and discussed with the local government officers during a fieldwork at the Niijima Island in July 2019. In the meeting with the local government officer, we also obtained additional information regarding the local management of groundwater resources, coastal erosion prevention, and preparedness of future tsunami disasters.Publications: The research outcomes were presented in JpGU, AOGS, and AGU meetings. The results of the 2D field-based model were published in the journal Water Resources Research. The results of the 3D field-based model were accepted for publication in the Journal of Groundwater Hydrology. The results of the conceptual model were reviewed by Water Resources Research, and is under review after resubmission to the journal.

实验室研究活动：分析了多孔介质中地下水水平流动变密度流动和质量输运的模拟结果。数值方法，然后应用到模拟海啸引起的海水入侵和含水层恢复过程中的新岛在未来的海啸情况下，使用二维和三维模型。这些模拟结果可以为研究东京湾地区的非楔形地下水-海水相互作用提供物理过程和驱动力的理解。实地考察：2019年7月在新岛进行实地考察时，介绍了实地模型的模拟结果，并与当地政府官员进行了讨论。在与当地政府官员的会谈中，我们还获得了有关当地地下水资源管理、海岸侵蚀预防和未来海啸灾害准备的更多信息。出版物：研究成果在JpGU、AOGS和AGU会议上发表。二维场模型的结果发表在《水资源研究》杂志上。三维实地模型的结果已被《地下水水文学杂志》接受发表。概念模型的结果由水资源研究审查，并在重新提交给该杂志后进行审查。

项目成果

Predicting Groundwater Salinization and Aquifer Recovery Processes under Future Tsunami Disaster Scenarios: A Numerical Modeling Study at the Niijima Island, Japan

预测未来海啸灾害情景下的地下水盐化和含水层恢复过程：日本新岛的数值模拟研究

• 发表时间: 2017
• 作者: Liu;J. and Tokunaga;T.;Liu Jiaqi;Liu Jiaqi;Liu Jiaqi;Liu Jiaqi;LIU Jiaqi;LIU Jiaqi;LIU Jiaqi;LIU Jiaqi;LIU Jiaqi;LIU Jiaqi;LIU Jiaqi
• 通讯作者: LIU Jiaqi

Prediction of Tsunami-Induced Groundwater Salinization in Coastal Areas: 2-D Numerical Modeling of the Niijima Island, Japan

海啸引起的沿海地区地下水盐碱化预测：日本新岛的二维数值模拟

• 发表时间: 2019
• 作者: Liu;J. and Tokunaga;T.;Liu Jiaqi;Liu Jiaqi;Liu Jiaqi
• 通讯作者: Liu Jiaqi

Dimensionless number analysis of variable-density flow and subsurface contaminant transport based on numerical simulations

基于数值模拟的变密度流和地下污染物输运的无量纲数分析

• 发表时间: 2019
• 作者: Liu;J. and Tokunaga;T.;Liu Jiaqi;Liu Jiaqi;Liu Jiaqi;Liu Jiaqi
• 通讯作者: Liu Jiaqi

AGU Fall Meeting 2017

2017 年 AGU 秋季会议

• 发表时间: 2017

3D modeling of tsunami-induced seawater intrusion and aquifer recovery in Niijima Island, Japan, under the future tsunami scenario

未来海啸情景下日本新岛海啸引起的海水入侵和含水层恢复的 3D 建模

• 发表时间: 2020
• 期刊: Journal of Groundwater Hydrology
• 作者: Liu;J. and Tokunaga;T.
• 通讯作者: T.