Results 21 to 30 of about 77,438 (238)

Ice core paleovolcanic records from the St. Elias Mountains, Yukon, Canada [PDF]

, 2007
We previously reported a record of regionally significant volcanic eruptions in the North Pacific using an ice core from Eclipse Icefield (St. Elias Mountains, Yukon, Canada).
Germani, Mark S, Kreutz, K, Wake, Cameron P, Whitlow, Sallie I, Yalcin, Kaplan   +4 more
core   +3 more sources

Profiling of fine and coarse particle mass : Case studies of Saharan dust and Eyjafjallajökull/Grimsvötn volcanic plumes [PDF]

, 2012
© Author(s) 2012. This work is distributed under the Creative Commons Attribution 3.0 LicenseThe polarization lidar photometer networking (POLIPHON) method introduced to separate coarse-mode and fine-mode particle properties of Eyjafjallajokull volcanic ...
Ansmann, A., Seifert, P., Tesche, Matthias, Wandinger, U.   +3 more
core   +3 more sources

Coseismic changes in subsurface structure associated with the 2018 Hokkaido Eastern Iburi Earthquake detected using autocorrelation analysis of ambient seismic noise

Earth, Planets and Space, 2019
Autocorrelation analysis using ambient noise is a useful method to detect temporal changes in wave velocity and scattering property. In this study, we investigated the temporal changes in seismic wave velocity and scattering property in the focal region ...
Hiroki Ikeda, Ryota Takagi
doaj   +1 more source

Rapid and quantitative uncertainty estimation of coseismic slip distribution for large interplate earthquakes using real-time GNSS data and its application to tsunami inundation prediction

Earth, Planets and Space, 2022
This study proposes a new method for the uncertainty estimation of coseismic slip distribution on the plate interface deduced from real-time global navigation satellite system (GNSS) data and explores its application for tsunami inundation prediction ...
Keitaro Ohno, Yusaku Ohta, Ryota Hino, Shunichi Koshimura, Akihiro Musa, Takashi Abe, Hiroaki Kobayashi   +6 more
doaj   +1 more source

The Research Unit VolImpact: Revisiting the volcanic impact on atmosphere and climate – preparations for the next big volcanic eruption [PDF]

, 2020
This paper provides an overview of the scientific background and the research objectives of the Research Unit “VolImpact” (Revisiting the volcanic impact on atmosphere and climate – preparations for the next big volcanic eruption, FOR 2820).
Buehler, S., Burrows, J., Giorgetta, M., Hegerl, G., Hoose, C., Horvath, A., Hoshyaripour, G., Malinina, E., Quaas, J., Rozanov, A., Schmidt, H., Thomason, L., Timmreck, C., Toohey, M., Vogel, B., von Savigny, C.   +15 more
core   +2 more sources

Source location of volcanic earthquakes and subsurface characterization using fiber-optic cable and distributed acoustic sensing system

Scientific Reports, 2021
We present one of the first studies on source location determination for volcanic earthquakes and characterization of volcanic subsurfaces using data from a distributed acoustic sensing (DAS) system.
Takeshi Nishimura, Kentaro Emoto, Hisashi Nakahara, Satoshi Miura, Mare Yamamoto, Shunsuke Sugimura, Ayumu Ishikawa, Tsunehisa Kimura   +7 more
doaj   +1 more source

Application of Phase-Only Correlation to Travel-Time Determination in GNSS-Acoustic Positioning

Frontiers in Earth Science, 2021
The GNSS-acoustic technique is a geodetic method for oceanic areas that combines GNSS positioning of a sea-surface platform and acoustic ranging of seafloor stations.
Chie Honsho, Motoyuki Kido, Toshihito Ichikawa, Toru Ohashi, Taichi Kawakami, Hiromi Fujimoto   +5 more
doaj   +1 more source

Updated absolute gravity rate of change associated with glacial isostatic adjustment in Southeast Alaska and its utilization for rheological parameter estimation

Earth, Planets and Space, 2022
In Southeast Alaska (SE-AK), rapid ground uplift of up to 3 cm/yr has been observed associated with post-Little Ice Age glacial isostatic adjustment (GIA). Geodetic techniques such as global navigation satellite system (GNSS) and absolute gravimetry have
Kazuhiro Naganawa, Takahito Kazama, Yoichi Fukuda, Satoshi Miura, Hideaki Hayakawa, Yusaku Ohta, Jeffrey T. Freymueller   +6 more
doaj   +1 more source

Seafloor observations indicate spatial separation of coseismic and postseismic slips in the 2011 Tohoku earthquake

Nature Communications, 2016
Postseismic slip of the 2011 Tohoku earthquake in Japan has occurred on the plate interface, but quantifying the slip has been difficult due to a lack of seafloor data.
Takeshi Iinuma, Ryota Hino, Naoki Uchida, Wataru Nakamura, Motoyuki Kido, Yukihito Osada, Satoshi Miura   +6 more
doaj   +1 more source

Slab-derived fluid storage in the crust elucidated by earthquake swarm

Communications Earth & Environment, 2022
The volume of slab-derived fluid which resulted in the earthquake swarm associated with the 2011 Mw 9.1 Tohoku earthquake is quantified by comparison of injection-induced seismicity with geological proxies.
Yusuke Mukuhira, Masaoki Uno, Keisuke Yoshida   +2 more
doaj   +1 more source