搜索结果: 16-30 共查到“地球物理学 Japan”相关记录36条 . 查询时间(0.156 秒)
Ionospheric perturbations associated with two huge earthquakes in Japan, using principal component analysis for multiple subionospheric VLF/LF propagation paths
Ionospheric perturbations Earthquakes Subionospheric VLF/LF propagation
2015/8/24
The presence of ionospheric perturbations in possible association with two huge earthquakes (Noto-hanto peninsula and Niigata-chuetu-oki earthquakes) in 2007 was studied on the basis of a conventional...
DONET: A Real-Time Monitoring System for Megathrust Earthquakes and Tsunamis Around Southwestern Japan
Monitoring System Megathrust Earthquakes
2015/7/17
DONET (Dense Ocean floor Network for Earthquakes and Tsunamis; https://www.jamstec.go.jp/donet/e/index.html) is a cabled seafloor observatory that monitors the Nankai and Tōnankai seismogenic zones, o...
Investigation of the Huge Tsunami from the 2011 Tōhoku-Oki, Japan, Earthquake Using Ocean Floor Boreholes to the Fault Zone
Japan, Earthquake Using Ocean Floor
2015/7/17
Integrated Ocean Drilling Program (IODP) Expedition 343, named the Japan Trench Fast Drilling Project (JFAST), drilled ocean floor boreholes through the fault zone of the 2011 Tōhoku-Oki earthquake (M...
Concentration of 134Cs + 137Cs bonded to the organic fraction of sediments offshore Fukushima, Japan
Fukushima Dai-ichi Nuclear Power Plant accident radiocesium sediment organic fraction sequential extraction
2017/4/10
We conducted a sequential chemical extraction experiment for radiocesium (134Cs + 137Cs) using 21 surface sediment
samples and two sets of size-fractionated surface sediment samples collected offshor...
Application of a global nonhydrostatic model with a stretched-grid system to regional aerosol simulations around Japan
stretched-grid system Japan
2015/3/5
An aerosol-coupled global nonhydrostatic model
with a stretched-grid system has been developed. Circulations over the global and target domains are simulated with
a single model, which includes @...
Late Pleistocene variation in lignin and fatty acids from core TKN-2004 in a small mountain basin in central Japan
lignin vegetation TMAH thermochemolysis glacial Takano Basin central Japan Late Pleistocene
2017/4/11
We generated a record of lignin and fatty acid compositions from the TK-2004 core in Takano Basin, central Japan,
during 39–162 ka by TMAH-thermochemolysis-GC/MS. We tested lignin and fatty acid comp...
Rare earth elements in a stalagmite from southwestern Japan: A potential proxy for chemical weathering
stalagmite rare earth elements partitioning paleoenvironment chemical weathering
2017/4/10
This study examines the distribution of rare earth elements (REEs) in an 18–4.5 ka stalagmite in southwestern Japan,
with the aim of assessing the utility of such data in paleoenvironmental reconstru...
An asperity model for fault creep and interseismic deformation in northeastern Japan
Numerical solutions Seismic cycle Creep and deformation Rheology and friction of fault zones Subduction zone processes Kinematics of crustal and mantle deformation
2014/4/9
We explore the potential geodetic signature of mechanical stress shadows surrounding inferred major seismic asperities along the Japan-Kurile subduction megathrust. Such stress shadows result from a d...
One-year monitoring of airborne radionuclides in Wako, Japan, after the Fukushima Dai-ichi nuclear power plant accident in 2011
Fukushima Dai-ichi nuclear power plant accident airborne radionuclide
2017/4/11
Airborne radionuclides from the accident of Fukushima Dai-ichi Nuclear Power Plant (FDNPP) in 2011 were measured
at the RIKEN Wako Institute, Japan, about 220 km to the southwest of FDNPP, from March...
Distribution of artificial radionuclides (110mAg, 129mTe, 134Cs, 137Cs) in surface soils from Miyagi Prefecture, northeast Japan, following the 2011 Fukushima Dai-ichi nuclear power plant accident
Fukushima Dai-ichi nuclear power plant accident Miyagi Prefecture radioactivity caesium surface soils
2017/4/11
The Tohoku earthquake and tsunami occurred off the Pacific coast of Japan in March 2011 and caused the Fukushima
Dai-ichi nuclear power plant accident. To assess the distribution of artificial radion...
Was the magnitude (M = 9.0R) of the mega-earthquake of Japan (11th of March, 2011) predictable? An analysis based on the Lithospheric Seismic Energy Flow Model (LSEFM)
Tohoku earthquake earthquake magnitude lithosphere cumulative seismic energy mega-earthquakes seismic potential maps
2012/4/20
The Tohoku EQ (11th of March, 2011, M = 9.0) in Japan falsified the proposed EQ magnitude range (M = 7.0 - 8.5) of the same seismogenic regional area that had been determined by the compiled hazard ma...
Triggering of Aftershocks of the Japan 2011 Earthquake by Earth Tides
Japan 2011 earthquake, Aftershock Triggering, Earth tides
2011/9/1
The aftershock sequence of the devastating Japan earthquake of March 2011 is analyzed for the presence of periodicities at the Earth tide periods. We use spectral analysis as well as a time-domain met...
Two types of adakites revealed by 238U-230Th disequilibrium from Daisen Volcano, southwestern Japan
adakite U-Th radioactive disequilibrium Daisen slab melting subduction
2017/8/9
Daisen volcano is located on the Quaternary volcanic front in southwestern Japan. The volcano is composed mainly of andesite and dacite, which chemically resemble adakites, with high Al2O3 and Sr/Y, s...
Integration of transient strain events with models of plate coupling and areas of great earthquakes in southwest Japan
Time-series analysis Transient deformation Subduction zone processes
2014/4/9
We model the crustal deformation caused by two long-term subduction slip transients in southwest Japan, which we refer to as the 2000–2004 Tokai and the 2002–2004 Bungo Channel slow slip events (SSEs)...
Estimation of interplate coupling in the Nankai trough, Japan using GPS data from 1996 to 2006
Satellite geodesy Seismicity and tectonics Subduction zone processes
2014/4/9
We used three-component surface velocities in southwest Japan to estimate plate coupling on the subducting plate interface at the Nankai trough. We analyzed continuous GPS data from the Japanese GEONE...