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Ryunosuke Kazahaya
Researcher at National Institute of Advanced Industrial Science and Technology
Publications - 27
Citations - 451
Ryunosuke Kazahaya is an academic researcher from National Institute of Advanced Industrial Science and Technology. The author has contributed to research in topics: Volcano & Impact crater. The author has an hindex of 11, co-authored 25 publications receiving 339 citations. Previous affiliations of Ryunosuke Kazahaya include Kyushu University & Japan Meteorological Agency.
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Volcanic plume measurements using a UAV for the 2014 Mt. Ontake eruption
Toshiya Mori,Takeshi Hashimoto,Akihiko Terada,Mitsuhiro Yoshimoto,Ryunosuke Kazahaya,Hiroshi Shinohara,Ryo Tanaka +6 more
TL;DR: A plume gas composition, sulfur dioxide flux and thermal image measurements and particle sampling were carried out using the unmanned aerial vehicle for three field campaigns on November 20 and 21, 2014, and June 2, 2015 as mentioned in this paper.
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Eruption mass estimation using infrasound waveform inversion and ash and gas measurements: Evaluation at Sakurajima Volcano, Japan
David Fee,Pavel Izbekov,Keehoon Kim,Akihiko Yokoo,Taryn Lopez,Fred Prata,Ryunosuke Kazahaya,Haruhisa Nakamichi,Masato Iguchi +8 more
TL;DR: In this paper, a robust full-waveform acoustic inversion method was used to calculate eruption flow rates and masses from 49 explosions from Sakurajima Volcano, Japan, where six infrasound stations deployed from 12-20 February 2015 recorded the explosions.
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Relation between single very‐long‐period pulses and volcanic gas emissions at Mt. Asama, Japan
TL;DR: In this paper, the relationship between very-long-period (VLP) seismic pulses and volcanic gas emissions was investigated. But the relation was not directly examined directly, and the relationship was not consistent with the VLP source model.
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TROPOMI enables high resolution SO2 flux observations from Mt. Etna, Italy, and beyond.
Manuel Queißer,Mike Burton,Nicolas Theys,Federica Pardini,Giuseppe Salerno,Tommaso Caltabiano,Matthew Varnam,Benjamin Esse,Ryunosuke Kazahaya,Ryunosuke Kazahaya +9 more
TL;DR: The result demonstrates that reliable, nearly real-time, high temporal resolution SO2 flux time series from TROPOMI measurements are possible for Etna and, by extension, other volcanic and anthropogenic sources globally, and suggests that global automated real- time measurements of large numbers of degassing volcanoes world-wide are now possible.