Altitude effects of localized source currents on magnetotelluric responses
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DOI[10.1186/s40623-020-01200-7]to the data of the same series
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- Material Type
- 記事
- Author/Editor
- Shinya Sato
- Publication, Distribution, etc.
- Publication Date
- 2020-06-01
- Publication Date (W3CDTF)
- 2020-06-01
- Periodical title
- EPS : Earth, Planets and Space
- No. or year of volume/issue
- 72(77)
- Volume
- 72(77)
- ISSN (Periodical Title)
- 1880-5981
- ISSN-L (Periodical Title)
- 1343-8832
- Text Language Code
- eng
- DOI
- 10.1186/s40623-020-01200-7
- Persistent ID (NDL)
- info:ndljp/pid/11520531
- 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)
- 2020-08-03T12:00:21+09:00
- Date Captured (W3CDTF)
- 2020-08-03
- 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/11467692
- 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.
- The effects of localized source currents on Earth’s magnetotelluric (MT) responses have been reported in the literature in terms of the changes in period and subsurface structure. The focus in this study is on the bias within the MT responses arising from variations in the vertical and horizontal distances of the source current. The MT responses at the periods of field aligned resonance (20 and 200 s) were calculated at various distances from the source current. A slight change in source distance causes a shift in the MT responses. The shift of apparent resistivity at 20 and 200 s exceeds 10% and 50% of the original values, respectively. Such features are found especially over the altitude range of the ionospheric E layer (i.e., 100–150 km), where MT source currents often flow. The vertical distance of the source field varies because the distribution of conductivity with altitude in the ionosphere and the region controlling the ionospheric electrical process change temporally. Thus, in assessing the temporal changes in MT responses, we should treat them carefully by checking the ionospheric environment.
- DOI
- 10.1186/s40623-020-01200-710.48550/arxiv.2003.01578
- Access Restrictions
- インターネット公開
- Rights (production)
- © The Author(s) 2020 This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
- Related Material (URI)
- Is Referenced By
- ループ状電流源が球体地球上のmagnetotelluric応答関数に与える影響についてSpatial gradients of geomagnetic temporal variations causing the instability of inter-station transfer functions
- References
- Source effects in mid-latitude geomagnetic transfer functionsHeights of electric currents near the auroral zoneHeight-integrated Pedersen conductivity in both E and F regions from COSMIC observationsOn magnetotelluric source effects caused by an auroral electrojet systemSq and EEJ—A Review on the Daily Variation of the Geomagnetic Field Caused by Ionospheric Dynamo CurrentsDirect penetration of the interplanetary electric field to low geomagnetic latitudes and its effect on magnetotelluric soundingMagnetotelluric fields of a line currentOn the sensitivity of long-term magnetotelluric monitoring in Southern Italy and source-dependent robust single station transfer function variability$F$-Region Dynamo Simulations at Low and Mid-LatitudeSource biases in midlatitude magnetotelluric transfer functions due to Pc3-4 geomagnetic pulsations
- 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CrossrefCrossref
- NAID
- 120006956724