1:45 PM - 2:00 PM
[SVC30-01] Simulation of pumice drift from Fukutoku Okanoba submarine volcano
Keywords:pumice, ocean prediction, remote sensing, drift calculation
The submarine volcano at Fukutoku Okanoba in the Ogasawara Islands erupted on August 13, 2021, one of the largest eruptions in the Japanese archipelago since the Meiji era, producing a large amount of pumice. The pumice drifted westward for about 2 months and reached the islands in mid-October, about 1,400 km away, in Okinawa Prefecture and the Amami Islands in Kagoshima Prefecture. The Pumice stones have caused problems such as the inability of fishing boats to leave the islands. The pumice has later reached Honshu as well.
The Japan Agency for Marine-Earth Science and Technology (JAMSTEC) calculated how pumice arrived from Fukutoku Okanoba in mid-October, when pumice began to become a problem in the Okinawa and Kagoshima islands (1). The prediction was extended to November 30 and predicted that pumice could drift as far as the Kanto region.
On the other hand, the Japan Aerospace Exploration Agency (JAXA) has started to provide information on the distribution of pumice over the ocean observed by the GCOM-C and Sentinel-2 satellites (2).
From November 16, 2021, JAMSTEC combined the information of the locations of pumice stones discovered by JAXA using satellites and the ocean current predictions, and has started the pumice drift prediction, thereby bringing the drift calculations closer to reality. The prediction calculations are available on YouTube (3), and have been updated regularly since then. The numerical data of the predictions are also available.
In this presentation, we will discuss the start-up and continuation of the actions to the pumice problem, cooperation with other organizations (Japan Coast Guard, etc.), social reaction to the information, and technical issues.
(1) http://www.jamstec.go.jp/j/jamstec_news/20211028/
(2) https://earth.jaxa.jp/karuishi/
(3) https://www.youtube.com/playlist?list=PLKT1Tlr-tdGG85epmm6U9Gg7woBV4gd6p
The Japan Agency for Marine-Earth Science and Technology (JAMSTEC) calculated how pumice arrived from Fukutoku Okanoba in mid-October, when pumice began to become a problem in the Okinawa and Kagoshima islands (1). The prediction was extended to November 30 and predicted that pumice could drift as far as the Kanto region.
On the other hand, the Japan Aerospace Exploration Agency (JAXA) has started to provide information on the distribution of pumice over the ocean observed by the GCOM-C and Sentinel-2 satellites (2).
From November 16, 2021, JAMSTEC combined the information of the locations of pumice stones discovered by JAXA using satellites and the ocean current predictions, and has started the pumice drift prediction, thereby bringing the drift calculations closer to reality. The prediction calculations are available on YouTube (3), and have been updated regularly since then. The numerical data of the predictions are also available.
In this presentation, we will discuss the start-up and continuation of the actions to the pumice problem, cooperation with other organizations (Japan Coast Guard, etc.), social reaction to the information, and technical issues.
(1) http://www.jamstec.go.jp/j/jamstec_news/20211028/
(2) https://earth.jaxa.jp/karuishi/
(3) https://www.youtube.com/playlist?list=PLKT1Tlr-tdGG85epmm6U9Gg7woBV4gd6p