June 1, 2021 We held an IER Special Seminar online.＜by Dr. Maksym A. Gusyev＞

An IER Special Seminar was held online on June 1, inviting Dr. Maksym A. Gusyev, a researcher at the International Centre for Water Hazard and Risk Management (ICHARM) under the auspices of UNESCO, Public Works Research Institute (PWRI). 15 researchers and students in and outside the university attended the seminar.

Groundwater flows underground at a very slow speed. It is very important as a water resource for human activities, however, groundwater cannot be directly observed. Therefore, Dr. Gushiev Maxim and his colleagues tried to grasp the flow of groundwater using tritium as a tracer and visualize it using a model. In the seminar, he introduced his research on quantitative understanding of groundwater by visualizing the residence time of groundwater to help groundwater management in the North Island of New Zealand. A similar method was verified in Hokkaido, Japan, and it was found that the use of tritium as a tracer is important for understanding groundwater. During the question and answer session, a discussion took place between the lecturer and the attendees.