Press Release

Bureau Veritas Japan supports Global Meteorological Research Project in Yonaguni

Aug. 5 2022

Bureau Veritas Japan’s Smart World division supported the radio license acquisition for an experimental radio station on Yonaguni Island in June, performing onsite inspection and advisory for the international meteorological observation project using radars.

The station on Yonaguni, Okinawa’s westernmost island, near Taiwan’s northeastern coast, forms a part of the international joint research project PRECIP/TAHOPE/T-PARCII, which features cooperation between Japan, Taiwan and US, with a joint aim to improve accuracy in the forecasting of extreme rainfall events which take place in the region.

Lead by Dr. Kazuhisa Tsuboki, a professor at Institute for Space-Earth Environmental Research, Nagoya University, and supported by teams at Colorado State University (CSU) in the USA, continuous radar observation in Yonaguni is conducted using three radars, the X-, C- and Ka-band polarized radars developed by the respective universities.

Positioned as the most important radar in the project, the C-band polarization radar developed by CSU observes cloud and precipitation systems formed in and around the eastern Taiwan with the S-band radar developed by the National Center for Atmospheric Research (NCAR), a US research institution. The S-band polarimetric radar is set up in Taiwan.

For the C-band polarization radar, Nagoya University established the experimental radio station, for which Bureau Veritas Japan performed an onsite inspection and supported radio license acquisition at their request.

The project deploys the Yonaguni radar to observe rainfall distribution in the area from Taiwan to the southwestern island of Japan. It aims to improve the accuracy of forecasting extreme rainfall events through understanding the structure and formation mechanism of cloud and precipitation systems, and their interaction with the moisture-rich atmosphere.

The resulting data enables a more accurate prediction of the process of moisture-rich atmosphere intruding into the western Japan.

Extreme rainfall events during the Meiyu/Baiu and tropical cyclone seasons are frequent in the region, and often result in serious disasters in Japan, Taiwan and Korea. If the project successfully improves accuracy in forecasting extreme rainfall events, it will reduce the impact of rainfall disasters in the whole region.

Tadatsune Takei, General Manager, CPS Division in Bureau Veritas Japan, said: “We are very proud to have assisted such a socially significant and international project that will contribute to the reduction of steadily increasing disasters caused by global warming through our service of onsite inspection and radio license acquisition support, as BV Group takes global initiative to address SDGs. We will continue to strive for the realization of a sustainable society as an independent certification company.”

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