Japan Geoscience Union Meeting 2019

Presentation information

[E] Oral

A (Atmospheric and Hydrospheric Sciences ) » A-GE Geological & Soil Environment

[A-GE29] Energy-Environment-Water Nexus and Sustainable Development

Thu. May 30, 2019 10:45 AM - 12:15 PM 301A (3F)

convener:Ming Zhang(Institute for Geo-Resources and Environment, Geological Survey of Japan, AIST), Ken Kawamoto(Graduate School of Science and Engineering, Saitama University), Jet-Chau Wen(National Yunlin University of Science and Technology), Yonghong Hao(Tianjin Normal University), Chairperson:Ming Zhang(AIST), Hirotaka Saito(Tokyo University of Agriculture and Technology), Yonghong Hao(Tianjin Normal University)

11:05 AM - 11:20 AM

[AGE29-02] Groundwater potential analysis using the multiple spatiotemporal remote sensing approach in fractured rock of mountainous region

*Jung-Jun Lin1,2, Yuei-An Liou1, Chien-Chung Ke2, Su-Yun Chi2, Jia-Hung Liang3 (1.National Central Univ., 2.Sinotech Engineering Consultants, Inc., 3.Ministry of Economic Affairs)

Keywords:groundwater, fractured rock, remote sensing

Because of the costly field investigation, an optimum benefit technique, the multiple spatiotemporal remote sensing analysis, was used for long-term monitoring and assessment of groundwater potential capacity. In this study, we used the mentioned approach to derive the spatiotemporal index from Landsat imagery for identifying the land use change and understanding the regional hydrogeological characteristics, such as normalized difference vegetation index (NDVI), soil moisture index (SMI), land surface temperature (LST) and so on. To verify the index evaluation results, the hydrogeological properties including the core inspection, geophysical logging and hydraulic testing of totally 108 boreholes drilling in the fractured rock mass in mountainous region were collected. The pumping test results such as well capacity from 76 groundwater monitoring wells were also used to compare the potential groundwater capacity evaluated from remote sensing analysis. It was found a good agreement between the field investigation data and remote sensing analysis results. Therefore, the multi-scaled comprehensive analyses of natural and anthropogenic geomorphic features are suitable for providing more information to qualify and estimate the selections of investigated sites in the future.