Numerical studies of geomagnetically induced electric field on seafloor and near coastal zones incorporated with heterogeneous conductivity distributions
Available in National Diet Library
Find on the publisher's website
NDL Digital Collections
Digital data available
Check on the publisher's website
DOI[10.1186/s40623-015-0356-2]to the data of the same series
Holdings of Libraries in Japan
This page shows libraries in Japan other than the National Diet Library that hold the material.
Please contact your local library for information on how to use materials or whether it is possible to request materials from the holding libraries.
other
CiNii Research
Search ServiceDigitalYou can check the holdings of institutions and databases with which CiNii Research is linked at the site of CiNii Research.CiNii Research
Search ServicePaperYou can check the holdings of institutions and databases with which CiNii Research is linked at the site of CiNii Research.
Bibliographic Record
You can check the details of this material, its authority (keywords that refer to materials on the same subject, author's name, etc.), etc.
- Material Type
- 記事
- Author/Editor
- Tada-nori Goto
- Publication, Distribution, etc.
- Publication Date
- 2015-12-02
- Publication Date (W3CDTF)
- 2015-12-02
- Periodical title
- EPS : Earth, Planets and Space
- No. or year of volume/issue
- 67(193)
- Volume
- 67(193)
- ISSN (Periodical Title)
- 1880-5981
- ISSN-L (Periodical Title)
- 1343-8832
- Text Language Code
- eng
- DOI
- 10.1186/s40623-015-0356-2
- Persistent ID (NDL)
- info:ndljp/pid/9772887
- Collection
- Collection (Materials For Handicapped People:1)
- Collection (particular)
- 国立国会図書館デジタルコレクション > 電子書籍・電子雑誌 > その他
- Acquisition Basis
- オンライン資料収集制度
- Date Accepted (W3CDTF)
- 2016-02-03T17:25:14+09:00
- Date Captured (W3CDTF)
- 2015-12-20
- Format (IMT)
- application/pdf
- Access Restrictions
- 国立国会図書館内限定公開
- Service for the Digitized Contents Transmission Service
- 図書館・個人送信対象外
- Availability of remote photoduplication service
- 可
- Periodical Title (URI)
- Periodical Title (Persistent ID (NDL))
- info:ndljp/pid/9227920
- Data Provider (Database)
- 国立国会図書館 : 国立国会図書館デジタルコレクション
- Summary, etc.
- Abrupt changes of geomagnetic field can make large induced electric field and resultant electric current on the earth, which is called as geomagnetically induced current (GIC). It can yield damages to pipelines, cables, and other architectures. For understanding the phenomena and future risks of GIC, it is necessary to evaluate how the sub-surface electrical conductivity structure is important for the GIC because the heterogeneous conductivity structure in the crust and mantle affects the induced electrical current locally. The hazard prediction based on the homogeneous earth may result in the underestimation. Here, I introduce possible cases of geomagnetically induced electric field (GIE) on seafloor and near coastal areas, based on numerical forward simulations on one-, two-, and three-dimensional (1-D, 2-D, and 3-D) earth’s structure including the sea layer. On the 1-D case, I show the possible amplitude of GIE on the seafloor, far from the coastal area. The second case study comes from 2-D forward simulation, in which the straightly elongated coastal line is assumed, and various sub-surface and sub-seafloor conductivity structures are imposed. The numerical results suggest that the amplitude of GIE on land becomes more than two times larger than that of the homogeneous earth without the sea layer. The width of land zone with larger GIE is about 20 km from the coast. In forward modeling with a simplified 3-D bathymetry, land electric field near the bay area increases with about ten times larger than that of the inland one. The seafloor GIE near the peninsula area also indicates about four times larger value than that of the other area at the same water depth. These phenomena can be explained by the boundary charge along the coastal area. I conclude that 3-D earth’s conductivity structure including the realistic bathymetry and sub-surface and sub-seafloor structures should be essential and focused for the hazard assessment of GIC.
- DOI
- 10.1186/s40623-015-0356-2
- Access Restrictions
- インターネット公開
- Rights (production)
- © 2015 Goto.This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
- Related Material (URI)
- Is Referenced By
- Time Domain Simulation of Geomagnetically Induced Current (GIC) Flowing in 500‐kV Power Grid in Japan Including a Three‐Dimensional Ground Inhomogeneity
- References
- The Magnetotelluric MethodMagnetic and Electric Fields Produced in the Sea During Geomagnetic DisturbancesThree‐dimensional electromagnetic modeling using finite difference equations: The magnetotelluric exampleGIC observations and studies in the Hydro-Québec power systemThree‐dimensional inversion of seafloor magnetotelluric data collected in the Philippine Sea and the western margin of the northwest Pacific OceanGeomagnetically Induced Currents as Ground Effects of Space WeatherModelling of natural sources of magnetospheric origin in the interpretation of regional induction studies: A reviewA Technique for Improving the Accuracy of Finite Element Solutions for Magnetotelluric DataMagnetotelluric responses of three-dimensional bodies in layered earthsElectric field at the seafloor due to a two-dimensional ionospheric currentSurface electric fields for North America during historical geomagnetic stormsThe extreme magnetic storm of 1–2 September 1859Effects of space weather on high-latitude ground systemsThe magnetotelluric method in the exploration of sedimentary basinsA review of progress in modelling of induced geoelectric and geomagnetic fields with special regard to induced currentsModeling geomagnetically induced currents in Hokkaido, JapanModelling the electric field at the seafloor due to a non-uniform ionospheric currentResistivity image of the Philippine Sea Plate around the 1944 Tonankai earthquake zone deduced by Marine and Land MT surveysElectrical conductivity imaging of the Philippine Sea upper mantle using seafloor magnetotelluric dataEstimation of geomagnetically induced currents based on the measurement data of a transformer in a Japanese power network and geoelectric field observationsReproducing electric field observations during magnetic storms by means of rigorous 3-D modelling and distortion matrix co-estimationThe characteristics of geoelectric fields at Kakioka, Kanoya, and Memambetsu inferred from voltage measurements during 2000 to 2011Compilation of 3D global conductivity model of the Earth for space weather applications
- Data Provider (Database)
- 国立情報学研究所 : CiNii Research
- Original Data Provider (Database)
- 学術機関リポジトリデータベース雑誌記事索引データベースCrossrefCiNii Articles科学研究費助成事業データベース科学研究費助成事業データベースCrossref
- Bibliographic ID (NDL)
- 9772887
- NAID
- 120005716318