Evaluation of aquifer structure and groundwater flow by using surface temperature data

2016 Fiscal Year Final Research Report

• Project/Area Number: 26550069
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Modeling and technologies for environmental conservation and remediation
• Research Institution: Nagasaki University
• Principal Investigator: NAKAGAWA Kei 長崎大学, 水産・環境科学総合研究科(環境), 教授 (90315135)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 地下水流れ / 熱輸送 / 数値シミュレーション / 室内実験 / 現地調査

Outline of Final Research Achievements

In this study, thermal transport experiments and numerical simulations were performed to test the proposed method to investigate heterogeneous groundwater flow and hydro-geological structure by the use of thermal imaging of the soil surface. The results of the study clearly showed that the thermal distribution of the soil surface is affected by subsurface impermeable obstacles. However, when a thinner cover was present, it was simple to determine the distribution of the obstacles and the groundwater flow path. Numerical simulation with obstacles could be used to reproduce the experimental results of thermal transport by using parameters determined with the simulation without obstacles.

Free Research Field

環境地下水学・地盤環境工学