EGU23-10841
https://doi.org/10.5194/egusphere-egu23-10841
EGU General Assembly 2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

The hourly volcanic SO2 column density and physical characteristics using Geostationary Environment Monitoring Spectrometer (GEMS) measurements

Jeonghyeon Park1, Hanlim Lee1, Jiwon Yang1, Hyunkee Hong2, Jhoon Kim3, Michel Van Roozendael4, Nicolas Theys4, Can Li5, Myong-Hwan Ahn6, Dong-won Lee2, Junsung Park7, Wonei Choi8, Rokjin Park9, and Daewon Kim7
Jeonghyeon Park et al.
  • 1Division of Earth and Environmental System Sciences ‒ Major of Spatial Information Engineering, Pukyong National University, Busan, Republic of Korea
  • 2National Institute of Environmental Research, Incheon, Republic of Korea
  • 3Department of Atmospheric Sciences, Yonsei University, Seoul, Republic of Korea
  • 4Belgian Institute for Space Aeronomy (BIRA-IASB), Brussels, Belgium
  • 5NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
  • 6Department of Climate and Energy Systems Engineering/Social Economy, Ewha Womans University, Seoul, Republic of Korea
  • 7Geomatics Research Institute, Pukyong National University, Busan, South Korea
  • 8Institute for Earth, Computing, Human and Observing (ECHO), Chapman University, Orange, CA, United States
  • 9School of Earth and Environmental Sciences, Seoul National University, Seoul, Republic of Korea

The Geostationary Environment Monitoring Spectrometer (GEMS) onboard the Geostationary Korea Multi-Purpose Satellite-2B (GEO-KOMPSAT-2B) satellite observes the hourly volcanic SO2 over Asia. In this study, the various physical characteristics of volcanic plumes have been investigated based on hourly volcanic SO2 measurements. The transport direction, path and speed, and altitude of volcanic SO2 plume emitted from Nishinoshima in Japan, Etna in Italy, and Dukono located in Halmahera, Indonesia were calculated. The SO2 plume from Nishinoshima, Japan, moved westward at a maximum speed of 57 km/h on August 4, 2020. The SO2 plume generated from Etna was observed to move over China using both GEMS and TROPOMI, and moved at an altitude of 11–14 km and a speed of 162–190 km/h. In the case of the SO2 plume from the Dukono volcano flowed into an average of 3.6 Mg of SO2 per hour to the cities of nearby islands. GEMS can be utilized for an improvement in the prediction accuracy of SO2 plume transport using a chemical transport model due to the availability of hourly volcanic SO2 height information. In addition, hourly observations of SO2 concentrations are expected to protect SO2 exposure through rapid forecasting for people in cities around the volcano.

How to cite: Park, J., Lee, H., Yang, J., Hong, H., Kim, J., Roozendael, M. V., Theys, N., Li, C., Ahn, M.-H., Lee, D., Park, J., Choi, W., Park, R., and Kim, D.: The hourly volcanic SO2 column density and physical characteristics using Geostationary Environment Monitoring Spectrometer (GEMS) measurements, EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EGU23-10841, https://doi.org/10.5194/egusphere-egu23-10841, 2023.