Japan Geoscience Union Meeting 2023

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Poster

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[O-06] Poster presentations by senior high school students

Sun. May 21, 2023 1:45 PM - 3:15 PM Poster (Exhibition Hall 8, Makuhari Messe)

convener:Tatsuhiko Hara(International Institute of Seismology and Earthquake Engineering, Building Research Institute), Katsuyoshi Michibayashi(Department of Earth and Planetary Sciences, Nagoya University), Miwa Kuri(Japan Meteorological Agency), Keiko Konya(Japan Agency for Marine-Earth Science and Technology)

On-site poster schedule (2023/5/21 13:45-15:15)

1:45 PM - 3:15 PM

[O06-P60] Research the Natural Phenomenon called Shiranui 5 ∼The reality of Shiranui and attempts to reproduce∼

*Ryota Tokumaru1, Sota Shintaku1, Takuma Honda1, Mizuki Kobayashi1 (1. Kumamoto Prefectural Uto High School)

Keywords:Shiranui, mirage, abnormal refraction, reproduction experime, lightpath


The Shiranui phenomenon is a mysterious fire phenomenon that can be seen in the Shiranui Sea on the night of Hassaku every year, and is considered to be a kind of mirage caused by abnormal refraction. This year, based on three questions: "Current status - Can we see Shiranui now?", "Principle - Scientific generation mechanism -", "Reproduction - Can Shiranui be reproduced? He challenged to elucidate the scientific principles. In particular, regarding the reproduction of the third question, we devised the placement of the silicon rubber heater and succeeded in reproducing Shiranui as if it were the Sea of Shiranui. Five years of research based on observations and experiments revealed that Shiranui is currently difficult to observe. In addition, it was scientifically clarified that it is a very rare mirage phenomenon that can occur and be observed under various conditions.