EGU24-3305, updated on 08 Mar 2024
https://doi.org/10.5194/egusphere-egu24-3305
EGU General Assembly 2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

ENIGMA: East-Asian Network Initiative for Gravity Measurement Alliance: A Proposal and Science Cases

Edwin J. Son1, Jeong Woo Kim2, John J. Oh1, Hwansun Kim1, Cheinway Hwang3, Ching-Chung Cheng3, Yoshihiro Ito4, Yoshiyuki Tanaka5, Wenbin Shen6, Wei Luan6, Minzhang Hu7, Ziwei Liu7, Heping Sun8, Xiaodong Chen8, Sangwook Bae9, and Heejun Yoon9
Edwin J. Son et al.
  • 1Gravity Research and Application Team (GReAT), National Institute for Mathematical Sciences, Daejeon, South Korea
  • 2Department of Geomatics Engineering, University of Calgary, Calgary, Canada
  • 3Department of Civil Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
  • 4Disaster Prevention Research Institute, Kyoto University, Uji, Japan
  • 5Department of Earth and Planetary Science, The University of Tokyo, Tokyo, Japan
  • 6Department of Geophysics, School of Geodesy and Geomatics, Wuhan University, Wuhan, China
  • 7Institute of Seismology, China Earthquake Administration, Wuhan, China
  • 8Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, China
  • 9Global Science Data-hub Center (GSDC), Korea Institute of Science and Technology Information, Daejeon, South Korea

We propose the establishment of an observational network comprising micro gravitometers across East Asia including, but not limited to Republic of Korea, Japan, Taiwan, and the Chinese mainland. The network will generate a parallel observation belt within the seismogenic zone that connects the Japan Trench, Ryuku Trenches, and Nankai Through, both constituent components of the Ring of Fire, for the detection of slight changes in micro-gravity for analyzing earthquakes of different magnitudes with different sources and depths. We will establish a data hub for sharing data, managing combined data format, and distributing computing resources for conducting collaborative research. In addition, the network measurement of micro-gravity can be used for searching the dark matter candidate inside Earth. The presentation demonstrates various science cases that could be undertaken by implementing a network of GWR Instruments Inc.’s superconducting gravimeters and a data hub within the East Asian region.

How to cite: Son, E. J., Kim, J. W., Oh, J. J., Kim, H., Hwang, C., Cheng, C.-C., Ito, Y., Tanaka, Y., Shen, W., Luan, W., Hu, M., Liu, Z., Sun, H., Chen, X., Bae, S., and Yoon, H.: ENIGMA: East-Asian Network Initiative for Gravity Measurement Alliance: A Proposal and Science Cases, EGU General Assembly 2024, Vienna, Austria, 14–19 Apr 2024, EGU24-3305, https://doi.org/10.5194/egusphere-egu24-3305, 2024.