The 2022 National Convention of the Japanese Association for Coastal Zone Studies was held at the University of the Ryukyus.

7/23 2022

The 2022 National Convention of the Japanese Association for Coastal Zone Studies was held at the University of the Ryukyus on July 23 and 24, 2022, under the joint sponsorship of the Japanese Association for Coastal Zone Studies and our Civil Engineering Design Course.

On the first day, July 23, lively research discussions took place in three session halls.

Photo Scene of research discussion

On July 24, the second day of the symposium, a national conference symposium of the Japanese Association for Coastal Zone Studies was held. Under the theme of "Information Dissemination from Okinawa to Nationwide," information was provided from the perspectives of tsunami disaster prevention, large-scale numerical simulation, and ecosystems (ant societies and fire ants).

Symposium Pamphlet

The symposium began with everyone standing to listen to the University of the Ryukyus song, "Kumo yo wake Sembaruno Sora" ("Cloud Will Spring the Sky of Sembaru").

Photo Scene of listening to the song

The Sakishima region of Okinawa Prefecture has the world's largest tsunami record and tsunami traces such as giant tsunami boulder. Prof. Eizo Nakaza explained the tsunami that occurred in the Sakishima region from a unique local perspective, including research on records in ancient documents and tsunami traces.

Photo Scene of Prof. Eizo Nakaza's lecture

　　Associate professor Tomoo Fukuda introduced some very unique examples of large-scale numerical simulations coupling fluid flow and motions of group of solid objects, including a complex simulation of debris flow that includes modeling not only sediment but also driftwood, an simulation of tsunami stone movement, and simulations of sediment input in the ocean.

Photo Scene of lecture of the associate professor Tomoo Fukuda

Prof. Mizuki Tsuji of the Faculty of Agriculture, University of the Ryukyus, gave a lecture titled "Ant Society and Fire Ants. In this lecture, he introduced the conflicts of interest that exist within the seemingly peaceful community of ants. For researchers in coastal areas, it was very meaningful to share information on the fire ant problem in Japan.

Photo Scene of Prof. Mizuki Tsuji's lecture

Both the research discussion and symposium were a great success.