H. Utada

T. Kanazawa, H. Shiobara, T. Kanazawa, 2011, 2011 IEEE Symposium on Underwater Technology and Workshop on Scientific Use of Submarine Cables and Related Technologies.

Development of compact ocean bottom cabled seismometers system for spatially dense observation on sea floor and first installation plan

Y. Morita, H. Shiobara, T. Kanazawa, 2009, OCEANS 2009-EUROPE.

Electrical conductivity anomalies beneath the Western Sea of Kyushu, Japan

H. Utada, S. Handa, M. Nakada, 1997 .

Use of ssq rotational invariant of magnetotelluric impedances for estimating informative properties for galvanic distortion

H. Utada, W. Siripunvaraporn, T. Rung-Arunwan, 2017, Earth, Planets and Space.

A deep transient EM experiment in the northern part of Miyagi Prefecture, northeastern Japan

H. Utada, W. Kanda, N. Sumitomo, 1996 .

Two-Dimensional Modelling of Resistivity Structure beneath the Tohoku District, Northern Honshu of Japan, by a Finite Element Method

H. Utada, Y. Ogawa, T. Yukutake, 1986 .

A Two-Dimensional Conductivity Model across Central Japan

H. Utada, Y. Hamano, T. Yukutake, 1986 .

Network-magnetotelluric method and its first results in central and eastern Hokkaido, NE Japan

M. Uyeshima, H. Utada, Y. Nishida, 2001 .

The EMSLAB electromagnetic sounding experiment

Alan G. Jones, A. W. Green, D. V. Woods, 1988 .

The 2011 Tohoku Tsunami observed by an array of ocean bottom electromagnetometers

H. Utada, K. Baba, H. Shimizu, 2014 .

New compact ocean bottom cabled system for seismic observation in the Japan Sea

H. Shiobara, T. Kanazawa, H. Utada, 2010, OCEANS 2010 MTS/IEEE SEATTLE.

Resistivity image of the Philippine Sea Plate around the 1944 Tonankai earthquake zone deduced by Marine and Land MT surveys

H. Utada, K. Suyehiro, T. Goto, 2005 .

Ocean Bottom Array Probes Stagnant Slab Beneath the Philippine Sea

H. Shiobara, H. Utada, Y. Fukao, 2009 .

A joint interpretation of electromagnetic and seismic tomography models suggests the mantle transition zone below Europe is dry

H. Utada, T. Koyama, Y. Fukao, 2009 .

Seismic and Electrical Signatures of the Lithosphere–Asthenosphere System of the Normal Oceanic Mantle

H. Utada, H. Kawakatsu, 2017 .

In Situ Characterization of the Lithosphere‐Asthenosphere System beneath NW Pacific Ocean Via Broadband Dispersion Survey With Two OBS Arrays

H. Shiobara, H. Utada, H. Kawakatsu, 2018, Geochemistry, Geophysics, Geosystems.

The first practical observation of the BBOBS-NX in the Normal Oceanic Mantle project

H. Shiobara, H. Utada, H. Sugioka, 2012 .

Recent developments of ocean bottom seismic and electromagnetic instruments operated by ROV

H. Shiobara, T. Kanazawa, H. Utada, 2011, 2011 IEEE Symposium on Underwater Technology and Workshop on Scientific Use of Submarine Cables and Related Technologies.

Application of Sompi spectral analysis to the estimation of the geomagnetic transfer function

H. Utada, E. Asakawa, T. Yukutake, 1988 .

Magma ascent beneath Unzen Volcano, SW Japan, deduced from the electrical resistivity structure

H. Utada, T. Kagiyama, Tetsuya Yamamoto, 1999 .

Key Points : 12 Broadband ocean bottom seismic observation is conducted in the NW Pacific Ocean

H. Shiobara, H. Utada, H. Kawakatsu, 2018 .

Geoelectr . , 46 , 403-408 , 1994 Audio-Frequency Magnetotelluric Imaging of an Active Strike-Slip Fault

M. Uyeshima, H. Utada, Y. Honkura, 2007 .

Audio-Frequency Magnetotelluric Imaging of an Active Strike-Slip Fault

M. Uyeshima, H. Utada, S. Koyama, 1994 .

Lithospheric structure of the continents

H. Utada, T. Harinarayana, A. Junge, 2007 .

Seasonal thermal signatures of heat transfer by water exchange in an underground vault

F. Perrier, H. Utada, O. Sano, 2004 .

Long‐term observation of in situ seismic velocity and attenuation

H. Utada, O. Sano, Y. Fukao, 2003 .

Resistivity Structure of the Central and the Southeastern Part of Kirishima Volcanoes

M. Uyeshima, H. Utada, T. Kagiyama, 1996 .

Revised 1-D mantle electrical conductivity structure beneath the north Pacific

H. Utada, T. Koyama, K. Baba, 2010 .

Three‐Dimensional Electrical Resistivity Structure Beneath a Volcanically and Seismically Active Island, Kyushu, Southwest Japan Arc

H. Utada, T. Kagiyama, H. Munekane, 2020, Journal of Geophysical Research: Solid Earth.

Evolution of the current system during solar wind pressure pulses based on aurora and magnetometer observations

H. Utada, Y. Nishimura, A. Yoshikawa, 2016, Earth, Planets and Space.

Changes in the electrical resistivity of the central cone, Miharayama, of Oshima Volcano observed by a direct current method

T. Yoshino, H. Utada, Y. Hamano, 1990 .

Stagnant slab : A review

H. Shiobara, T. Kanazawa, H. Utada, 2009 .

Changes in the geomagnetic total intensity observed before the eruption of Oshima Volcano in 1986.

Y. Sasai, H. Utada, T. Yoshino, 1990 .

Geomagnetic Variations Observed after the 1986 Eruption of Izu-Oshima Volcano

Y. Sasai, H. Utada, S. Koyama, 1990 .

Asymmetric Electrical Structure in the Mantle Beneath the East Pacific Rise at 17°S

Hisashi Utada, Alan D. Chave, Graham Heinson, 1999 .

Preliminary result of the oceanic mantle structure revealed by "Normal Oceanic Mantle Project"

H. Shiobara, H. Utada, H. Kawakatsu, 2014 .

Resistivity and self-potential changes associated with volcanic activity: The July 8, 2000 Miyake-jima eruption (Japan)

Hisashi Utada, Yoshio Takahashi, Yoichi Sasai, 2003 .

Inversion of Longer‐Period OBS Waveforms for P Structures in the Oceanic Lithosphere and Asthenosphere

H. Shiobara, H. Utada, N. Takeuchi, 2019, Journal of Geophysical Research: Solid Earth.

Ocean bottom geophysical array studies may reveal the cause of seafloor flattening

H. Utada, 2019, Earth and Planetary Science Letters.

Electrical conductivity of old oceanic mantle in the northwestern Pacific I: 1-D profiles suggesting differences in thermal structure not predictable from a plate cooling model

Hisayoshi Shimizu, Hisashi Utada, Naoto Hirano, 2017, Earth, Planets and Space.

Electromagnetic exploration of the oceanic mantle

H. Utada, 2015, Proceedings of the Japan Academy. Series B, Physical and biological sciences.

Is the electrical conductivity of the northwestern Pacific upper mantle normal?

H. Utada, K. Baba, H. Shimizu, 2013 .

Electrical conductivity imaging of the Philippine Sea upper mantle using seafloor magnetotelluric data

H. Utada, T. Goto, T. Kasaya, 2010 .

Upper mantle electrical resistivity structure beneath the central Mariana subduction system

Hisashi Utada, Tada-nori Goto, Alan D. Chave, 2010 .

1-D electrical conductivity structure beneath the Philippine Sea: Results from an ocean bottom magnetotelluric survey

H. Utada, K. Baba, H. Toh, 2007 .

Geoelectric power spectra over oceanic distances

Carol G. Maclennan, Louis J. Lanzerotti, Hisashi Utada, 1995 .

Coseismic piezoelectric effects due to a dislocation: 1. An analytic far and early-time field solution in a homogeneous whole space

H. Utada, T. Ogawa, 2000 .

Electromagnetic signals related to incidence of a teleseismic body wave into a subsurface piezoelectric body

H. Utada, T. Ogawa, 2000 .

On the Berdichevsky average

H. Utada, W. Siripunvaraporn, T. Rung-Arunwan, 2016 .

The effect of initial and prior models on phase tensor inversion of distorted magnetotelluric data

H. Utada, W. Siripunvaraporn, T. Rung-Arunwan, 2022, Earth, Planets and Space.

Water Content in the Mantle Transition Zone Beneath the North Pacific Derived from the Electrical Conductivity Anomaly

Hisayoshi Shimizu, Hisashi Utada, Takao Koyama, 2013 .

Marine magnetotellurics imaged no distinct plume beneath the Tristan da Cunha hotspot in the southern Atlantic Ocean

H. Utada, W. Jokat, W. Geissler, 2017 .

Three-dimensional geomagnetic response functions for global and semi-global scale induction problems

H. Utada, T. Koyama, K. Baba, 2009 .

A semi‐global reference model for electrical conductivity in the mid‐mantle beneath the north Pacific region

H. Utada, A. Chave, T. Koyama, 2003 .

Noise Reduction from Vertical-Component Seismograms Recorded by Broadband Ocean-Bottom Seismometers Deployed at the Western Pacific

H. Shiobara, Younghee Kim, H. Utada, 2023, Bulletin of the Seismological Society of America.

Sq effect on the electromagnetic response functions in the period range between 104 and 105 s

H. Utada, K. Baba, H. Shimizu, 2011 .

3‐D modelling the electric field due to ocean tidal flow and comparison with observations

Hisashi Utada, Andreas Junge, Alexei Kuvshinov, 2006 .

Seafloor electromagnetic induction studies in the Bay of Bengal

H. Fujimoto, H. Utada, B. Singh, 2000 .

On the physical background of the VAN earthquake prediction method

H. Utada, 1993 .

Water content and geotherm in the upper mantle above the stagnant slab : Interpretation of electrical conductivity and seismic P-wave velocity models

H. Utada, K. Baba, M. Obayashi, 2006 .

Anomalous occurrence features of the preliminary impulse of geomagnetic sudden commencement in the South Atlantic Anomaly region

H. Utada, T. Nagatsuma, T. Kikuchi, 2010 .

Probing 1-D electrical anisotropy in the oceanic upper mantle from seafloor magnetotelluric array data

H. Utada, K. Baba, T. Matsuno, 2020 .

Three‐dimensional inversion of seafloor magnetotelluric data collected in the Philippine Sea and the western margin of the northwest Pacific Ocean

H. Utada, K. Baba, N. Tada, 2014 .

Characteristics of counter‐Sq SFE (SFE*) at the dip equator CPMN stations

H. Utada, A. Yoshikawa, S. Watari, 2009 .

The response of the dayside equatorial electrojet to step‐like changes of IMF BZ

H. Utada, T. Nagatsuma, H. Kawano, 2013 .

The 2000 Activity of Miyake-jima Volcano as Inferred from Electric and Magnetic Field Observations

Y. Sasai, M. Uyeshima, J. Zlotnicki, 2001 .

Characteristics of Background Noise in the Oldest-1 Array Deployed on the Oldest Part of the Pacific Plate

H. Shiobara, Younghee Kim, H. Utada, 2023, Bulletin of the Seismological Society of America.

Anomaly of the geomagnetic Sq variation in Japan: effect from 3-D subterranean structure or the ocean effect?

H. Utada, A. Kuvshinov, 2010 .

The feasibility of using decadal changes in the geoelectric field to probe Earth's core

H. Utada, H. Shimizu, 2004 .

Detectability of decadal variations of the surface electric potential generated by zonal oscillating flows in Earth's core

H. Utada, H. Shimizu, 2003, 2003 International Conference Physics and Control. Proceedings (Cat. No.03EX708).

An observational constraint on the strength of the toroidal magnetic field at the CMB by time variation of submarine cable voltages

H. Utada, T. Koyama, H. Shimizu, 1998 .

Ocean bottom measurements of the Earth's electric field using long cable installed by ROV

H. Shiobara, H. Utada, K. Baba, 2013, IEEE International Underwater Technology Symposium.

Submarine cable electrical voltages to probe the Earth's deep interior

H. Utada, H. Shimizu, 2011, 2011 IEEE Symposium on Underwater Technology and Workshop on Scientific Use of Submarine Cables and Related Technologies.

Re-evaluation of Linear Trend of Submarine Cable Voltages for the Study of the Toroidal Field Variation at the CMB

H. Utada, H. Shimizu, 2007, Symposium on Underwater Technology and Workshop on Scientific Use of Submarine Cables and Related Technologies.

Measuring the electric field of the Earth by an ocean bottom instrument with a long (10-100 km) cable

H. Utada, T. Goto, K. Kawaguchi, 2004, Oceans '04 MTS/IEEE Techno-Ocean '04 (IEEE Cat. No.04CH37600).

Possible effects of lateral heterogeneity in the D″ layer on electromagnetic variations of core origin

Hisayoshi Shimizu, Hisashi Utada, Takao Koyama, 2002 .

Three-dimensional electrical conductivity structure beneath North Pacific by using a submarine cable network

H. Utada, T. Koyama, H. Shimizu, 2003, 2003 International Conference Physics and Control. Proceedings (Cat. No.03EX708).

Ocean Hemisphere Geomagnetic Network: its instrumental design and perspective for long-term geomagnetic observations in the Pacific

H. Utada, H. Shimizu, 1999 .

GeO-TOC Project-Reuse of Submarine Cables for Seismic and Geoelectrical Measurements

Hisashi Utada, Junzo Kasahara, Hajimu Kinoshita, 1995 .

Studies on the lithosphere and the water transport by using the Japan Sea submarine cable (JASC): 1. Theoretical considerations

H. Utada, A. Nozdrina, Y. Tanaka, 1998 .

Determination of intrinsic attenuation in the oceanic lithosphere-asthenosphere system

H. Shiobara, H. Utada, N. Takeuchi, 2017, Science.

Anisotropy in the Northwest Pacific oceanic lithosphere inferred from Po/So waves

H. Shiobara, H. Utada, T. Furumura, 2016 .

Use of the Nakhodka-Naoetsu submarine cable for studying the temporal variability of the integral water transport in the Sea of Japan

H. Utada, Yoshikazu Tanaka, R. D. Medzhitov, 2001 .

Trans-Pacific temperature field in the mantle transition region derived from seismic and electromagnetic tomography

H. Utada, T. Koyama, Y. Fukao, 2004 .

Upper mantle conductivity structure of the back‐arc region beneath northeastern China

M. Uyeshima, H. Utada, M. Ichiki, 2001 .

A study of annual variations in the geomagnetic total intensity with special attention to detecting volcanomagnetic signals

H. Utada, T. Kagiyama, M. Neki, 2000 .

Resistivity Structure of Izu-Oshima Volcano Revealed by the ELF-VLF Magnetotelluric Method

H. Utada, Takafumi Shimomura, 1990 .

3‐D electrical resistivity structure based on geomagnetic transfer functions exploring the features of arc magmatism beneath Kyushu, Southwest Japan Arc

M. Uyeshima, H. Utada, T. Kagiyama, 2017 .

Preliminary Report on a Study of Resistivity structure beneath the Northern Honsyu of Japan

T. Tachikawa, Y. Sasai, H. Utada, 1983 .

GJI Geomagnetism, rock magnetism and palaeomagnetism Robust and less robust features in the tangential geostrophy core flows

H. Utada, H. Shimizu, S. Asari, 2009 .

ON EARTH EVOLUTION , VOL . 2 Electrical structure of the upper mantle in the Mariana subduction system

H. Utada, K. Suyehiro, T. Goto, 2005 .

Electromagnetic evidence for volatile‐rich upwelling beneath the society hotspot, French Polynesia

P. Tarits, H. Utada, T. Kasaya, 2016 .

Hydrogen diffusivity in wadsleyite and water distribution in the mantle transition zone

H. Utada, T. Koyama, E. Ohtani, 2006 .

Preliminary report on regional resistivity variation inferred from the Network MT investigation in the Shikoku district, southwestern Japan

M. Uyeshima, H. Utada, S. Yamaguchi, 1999 .

EMRIDGE: The electromagnetic investigation of the Juan de Fuca Ridge

H. Utada, G. Heinson, L. Law, 1993 .

Seismic Structure of the Lithosphere‐Asthenosphere System Beneath the Oldest Seafloor Revealed by Rayleigh‐Wave Dispersion Analysis

H. Shiobara, Younghee Kim, H. Utada, 2023, Journal of Geophysical Research: Solid Earth.

Resistivity structure of Unzen Volcano derived from time domain electromagnetic (TDEM) survey

H. Utada, T. Kagiyama, T. Hashimoto, 2008 .

The OJP array: seismological and electromagnetic observation on seafloor and islands in the Ontong Java Plateau

H. Shiobara, H. Utada, H. Ichihara, 2018 .

Tectonoelectric Signal Related with the Occurrence of the 1995 Hyogo-ken Nanbu Earthquake (M 7.2) and Preliminary Results of Electromagnetic Observation around the Focal Area

Y. Sasai, M. Uyeshima, H. Utada, 1997 .

Temporal variation in the resistivity structure of the first Nakadake crater, Aso volcano, Japan, during the magmatic eruptions from November 2014 to May 2015, as inferred by the ACTIVE electromagnetic monitoring system

H. Utada, T. Kagiyama, M. Utsugi, 2018, Earth, Planets and Space.

On galvanic distortion of regional three-dimensional magnetotelluric impedances

H. Utada, H. Munekane, 2000 .

Magnetotelluric investigations for the seismically active area in Northern Miyagi Prefecture, northeastern Japan

H. Utada, T. Goto, N. Oshiman, 1999 .

Impedance Tensor of Network‐MT and the Influencing Factors

M. Uyeshima, H. Utada, Guoze Zhao, 2008 .

Mantle transition zone beneath a normal seafloor in the northwestern Pacific: Electrical conductivity, seismic thickness, and water content

H. Shiobara, H. Utada, K. Baba, 2017 .

84. DATA REPORT: ELECTRICAL RESISTIVITY EXPERIMENT IN THE YAMATO BASIN1

H. Utada, K. Becker, Y. Hamano, 1992 .

Preliminary report on a magnetotelluric array study in the Northwest Pacific.

H. Utada, J. Filloux, Y. Hamano, 1983 .

A regularized three-dimensional magnetotelluric inversion with a minimum gradient support constraint

Hisashi Utada, Takao Koyama, Luolei Zhang, 2012 .

ACTIVE system for monitoring volcanic activity: A case study of the Izu-Oshima Volcano, Central Japan

Y. Morita, H. Utada, T. Kagiyama, 2007 .

Seismic Velocity Structure of Upper Mantle Beneath the Oldest Pacific Seafloor: Insights From Finite‐Frequency Tomography

H. Shiobara, Younghee Kim, H. Utada, 2023, Geochemistry, Geophysics, Geosystems.

Data processing revisited in electrical and electromagnetic survey data using digital filters.

Hisashi Utada, Tada-nori Goto, Hikaru Nagata, 2011 .

Practical incorporation of local and regional topography in three-dimensional inversion of deep ocean magnetotelluric data

H. Utada, K. Baba, W. Siripunvaraporn, 2013 .