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Short title
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Extremely severe GIC
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Oral presentation
Date/Room/Chair
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May 22 AM1 (09:00 - 10:45)
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101A
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Ryuho Kataoka
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May 22 AM2 (11:00 - 12:45)
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101A
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Ikuko Fujii
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Poster presentation
Date/Room
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May 22 (Core Time 18:15 - 19:30)
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Convention Hall
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Contact
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Shigeru Fujita
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Email
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sfujita@mc-jma.go.jp
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Convener
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Shigeru Fujita
/ Ikuko Fujii
/ Ryuho Kataoka
/ Yusuke Ebihara
/ Shinichi Watari
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Scope
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In March 13, 1989, huge geomagnetically induced currents (GICs) associated with sudden changes of the geomagnetic field caused power line failure in Canada due to damage of the transformer installed in a substation. Meanwhile, since such accidents have been regarded to occur only in the region of higher geomagnetic latitudes, Japan has been supposed to be free from the GIC accidents. However, it is not obvious how huge GIC would be supposed in Japan for extremely severe geomagnetic storms like the Carrington storm in September, 1859. Therefore, it is the obligatory issue for the Japanese scientists studying magnetic field variations in space and on the surface of the Earth to evaluate extremely large GICs in Japan, potentially occurring once per several hundred years. In this session, we will discuss following multidisciplinary topics and related ones; 1) estimate of intensity of the extremely severe space weather phenomena by means of statistical analysis of accumulated data; 2) theoretical estimate of the upper limits; 3) realistic modeling of the induced electric field on the surface of the Earth and GIC by using 3D conductivity distribution of the Earth. Through these discussions, we will plot the scheme of the future collaboration among interdisciplinary scientists to study extremely large GICs in Japan.
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Notes
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| Time |
Presentation No |
Title |
Author |
Presenter |
Abstract |
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Oral Presentation May 22 AM1 (09:00-10:45) 101A to the top
|
|
09:00 - 09:15
|
MIS29-01
|
Anomalous large amplitude geomagnetic sudden commencement (SC)
|
Tohru Araki
|
Tohru Araki
|
|
|
09:15 - 09:30
|
MIS29-02
|
Introduction of Network-MT method - toward elucidating nation-wide deep electrical conductivity structure -
|
Makoto Uyeshima
Research Group of Network-MT method
|
Makoto Uyeshima
|
|
|
09:30 - 09:45
|
MIS29-03
|
Mid latitude GIC as the ground surface currents carried by the TM0 mode waves in the Earth-ionosphere waveguide
|
Takashi Kikuchi
Shinichi Watari
Kumiko Hashimoto
|
Takashi Kikuchi
|
|
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09:45 - 10:00
|
MIS29-04
|
Three-dimensional analysis technique for marine magnetotelluric method
|
Noriko Tada
|
Noriko Tada
|
|
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10:00 - 10:15
|
MIS29-05
|
Development of measurement equipment for effects of GIC(Geomagnetically-Induced Currents)
|
OOSATO, Kenichi
NAKATANI, Hideyuki
YAMAMOTO, Yasuhiro
other
|
Sadayuki Ishikura
|
|
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10:15 - 10:30
|
MIS29-06
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A general introduction of magnetotellurics and of electrical conductivity distribution beneath Japan for the GIC study
|
Masahiro Ichiki
|
Masahiro Ichiki
|
|
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10:30 - 10:45
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3-min talk in an oral session@(MIS29-P01/MIS29-P02/MIS29-P03/MIS29-P05/MIS29-P06)
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Oral Presentation May 22 AM2 (11:00-12:45) 101A to the top
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11:00 - 11:15
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MIS29-07
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Toward Construction of iES Database (Database for Information on Electromagnetic Surveys) for Conductivity Structure ben
|
Naoto Oshiman
Satoru Yamaguchi
Makoto Uyeshima
other
|
Naoto Oshiman
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11:15 - 11:30
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MIS29-08
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Superflares on solar-type stars
|
Hiroyuki Maehara
Takuya Shibayama
Yuta Notsu
other
|
Hiroyuki Maehara
|
|
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11:30 - 11:45
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MIS29-09
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Concentration of magnetotelluric current caused by local 3-D resistivity heterogeneities
|
Hiroshi Ichihara
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Hiroshi Ichihara
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|
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11:45 - 12:00
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MIS29-10
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On GIC associated with past intense geomagnetic storms
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Shinichi Watari
Takashi Watanabe
|
Shinichi Watari
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|
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12:00 - 12:15
|
MIS29-11
|
Inhomogeneity of the shallow resistivity structure inferred from EM surveys and resistivity logging data in Kanto Plain
|
Shinichi Takakura
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Shinichi Takakura
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12:15 - 12:30
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MIS29-12
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Super magnetic storms and geomagnetically induced currents in Japan
|
Ryuho Kataoka
|
Ryuho Kataoka
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|
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12:30 - 12:45
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3-min talk in an oral session@(MIS29-P07/MIS29-P08/MIS29-P09/MIS29-P10)
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| Presentation No |
Title |
Author |
Presenter |
Abstract |
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Poster Presentation May 22 Core Time (18:15-19:30) Convention Hall to the top
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|
MIS29-P01
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Importance of estimating the extremely large GIC in Japan
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Shigeru Fujita
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Shigeru Fujita
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MIS29-P02
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Science and Operational Activity of Space Weather in NICT
|
Mamoru Ishii
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Mamoru Ishii
|
|
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MIS29-P03
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Numerical solver of EM induction equation in 3-D anomalous sphere by using integral equation method
|
Takao Koyama
Hisayoshi Shimizu
Hisashi Utada
|
Takao Koyama
|
|
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MIS29-P04
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Development of the ionospheric conductivity model
|
Yukinobu Koyama
Atsuki Shinbori
Tomoaki Hori
other
|
Yukinobu Koyama
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|
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MIS29-P05
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Estimation of the extreme geomagnetic storm level by utilizing extreme value statistics
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Ken Tsubouchi
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Ken Tsubouchi
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MIS29-P06
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Seafloor electromagnetic observation and recent application for imaging sub-seafloor structure
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Tada-nori Goto
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Tada-nori Goto
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|
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MIS29-P07
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A statistical study of geomagnetic events in Japan
|
Yasuhiro Minamoto
Shigeru Fujita
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Yasuhiro Minamoto
|
|
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MIS29-P08
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Responses of Geomagnetic Storm and Magnetosperic convection to the extreme solar wind conditions
|
Tsutomu Nagatsuma
Manabu Kunitake
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Tsutomu Nagatsuma
|
|
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MIS29-P09
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Geoelectric Potential difference observation conducted by Kakioka Magnetic Observatory
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Ikuko Fujii
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Ikuko Fujii
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MIS29-P10
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Evaluation of the earth-induced current contribution for a precise prediction of the Dst index
|
Masahito Nose
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Masahito Nose
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MIS29-P11
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A modeling of Geomagnetically Induced Currents in Midlatitude Regions
|
Kimura Aoi
Yusuke Ebihara
Yoshiharu Omura
other
|
Yusuke Ebihara
|
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