Multidisciplinary and Interdisciplinary (M)
Session Sub-categoryTechnology & Techniques(TT)
Session IDM-TT49
TitleBrand-new scope of coupling geophysics being established by infrasound and associated waves
Short TitleCoupling geophysics by infrasound waves
Main Convener NameMasa-yuki Yamamoto
AffiliationDepartment of systems engineering, Kochi University of Technology
Co-Convener 1NameMie Ichihara
AffiliationEarthquake Research Institute, University of Tokyo
Co-Convener 2NameNobuo Arai
AffiliationDisaster Mitigation Research Center, Nagoya University
Session LanguageJ
ScopeInfrasound and associated wave studies are recently focused on coupling waves with long-distance and vertical propagation characteristics. Such kinds of waves, having with coupling process between the atmosphere and the surface of ground and ocean, are linked with elastic waves in lithosphere and oceanic sphere, as well as to atmospheric regions up to the upper atmosphere, playing a role of generating many kinds of wavelike turbulences in thermosphere. Moreover, whole on the globe, these waves excited depending on the latitude regions, as well as on the environmental regions, such as snow ice, desert, rainforest, mountain, ocean, etc., have their own characteristics. These waves can be excited by large-scale geophysical events like volcanic eruptions, tsunami, thunderstorms, etc. as well as artificial explosions, propagating with long distance. In this session, we would like to discuss such "coupling geophysics" by using many new or well-known investigated data and simulations of infrasound and associated low frequency waves. It can combine multiple spheres in geophysics and bring a brand-new scope of geophysics. Your contributions from many regions are welcome!
Presentation FormatOral and Poster presentation
Invited AuthorsHiroyuki Shinagawa (National Institute of Information and Communications Technology)
Hiroyuki Nakata (Graduate School of Engineering, Chiba University)
TimePresentation NoTitlePresenterAbstract
Oral Presentation May 30 AM2
10:45 - 11:00MTT49-01A two-step amplification mechanism of infrasound waves in the ocean-atmosphere systemHiroyuki Shinagawa
11:00 - 11:15MTT49-02Propagation of infrasound generated by an explosive eruption of Mt. Shinmoedake on 10 March 2018Hiroaki Saito
11:15 - 11:30MTT49-03Infrasound observations of atmospheric disturbances due to a sequence of 2018 explosive volcano eruptions in Japan.Mario Batubara
11:30 - 11:45MTT49-04Comparison of seismic waveforms observed by co-located seismometer and barometer installed indoors 2nd reportMakiko Iwakuni
11:45 - 12:00MTT49-05Ionospheric disturbances associated with typhoons and a tornado observed by HF doppler soundingHiroyuki Nakata
12:00 - 12:15MTT49-06Two-year infrasound monitoring by using a prefectural-level sensor network in KochiMasa-yuki Yamamoto
Presentation NoTitlePresenterAbstract
Poster Presentation May 30 PM2
MTT49-P01Infrasound signals in Cocos Islands (I06AU) associated with eruption or volcanic body collapse of the Anak Krakatau Volcano or tsunamiMakiko Iwakuni
MTT49-P02A try of origin identification estimated from 2 CTBTO stations detected infrasound signals excited by “The 2018 Hokkaido Eastern Iburi Earthquake”Mami Nogami
MTT49-P03Quantitative evaluation of blast pressure in the atmosphere and direct measurement of infrasonic/acoustic wave propagation characteristicsYusuke Yasukochi
MTT49-P04A case study on relationship with infrasonic wave and auroral activity in the polar regionOhata Haruka
MTT49-P05Development of a data-handling platform for simultaneous observation using multiple-type infrasound sensorsYuichiro Inoue