Japan Geoscience Union Meeting 2023

Presentation information

[J] Online Poster

S (Solid Earth Sciences ) » S-VC Volcanology

[S-VC33] Monitoring and assessment of volcanic activities

Thu. May 25, 2023 1:45 PM - 3:15 PM Online Poster Zoom Room (9) (Online Poster)

convener:Akimichi Takagi(Meteorological Research Institute, Japan Meteorological Agency), Hiroshi Munekane(Geospatial Information Aurhotiry of Japan), Takao Ohminato(Earthquake Research Institute, Tokyo University)

On-site poster schedule(2023/5/26 17:15-18:45)

1:45 PM - 3:15 PM

[SVC33-P07] Monitoring of Volcanic activity on Mt. Baekdu by using remote and field observation data: Korea Meteorological Administration(KMA)

*Haseong Lee1, Heeun Kim1, Heejeong Seo1, Jimin Lee1, Sun-Cheon Park1 (1.Korea Meteorological Administration)

Keywords:Volcano, Volcano monitoring, remote, diffusion model of volcano ash

Mt. Baekdu’s caldera was created in 946~947 by colossal(VEI 7) ‘Millennium’ eruption. Mt. Baekdu is an active volcano on the border between China and North Korea. Because of its location, satellite remote sensing is one of the important tools for understanding of volcanic activity.
We used Satellite images(Sentienl-1, Landsat) to measure deformation of Mt. Baekdu. SAR image(Sentinel-1) is analyzed to obtain the surface displacement. Optical and thermal infrared images are analyzed to obtain surface temperature and caldera area(called `Haven Lake`). We are regularly monitoring volcanic activity using remote analysis.
In 2018, the Korea Metorological Administration(KMA) established the Volcano Specialized Resarch Center, which is conducting joint research between Korea and China. Through this joint research, we have been obtaining field observation data in Mt. Baekdu. We acquire volcanic gas and temperature data from hot spring water and observe surface defromation with the EDM installed in Chanbaishan Tianchi Volcan Observatory(TVO).
Therefore, we monitor volcanic activity not only remotely, but also by regularly analyzing field observation data. As a result of analysis through satellite images and field observation data, it is judged as Mt. Baekdu is currently in a stable state.
In addition, we monitor volcanoes around the Korea Peninsula using VAAC. If there is volcanic activity around the Korea Peninsula including Mt. Baekdu, the diffusion range is calculated using the Ash Diffusion Model.