Spherical Harmonic Analysis in Terms of Unevenly Distributed Observation Points and Its Applications to Geomagnetic Data.

• Mochizuki Eiji

  Department of Earth and Planetary Physics, Faculty of Science, University of Tokyo

• Yokoyama Yukiko

  Department of Information and Computer Science, University of Industrial Technology

• Shimizu Itsujiro

  Department of Information and Computer Science, University of Industrial Technology

• Hamano Yozo

  Department of Earth and Planetary Physics, Faculty of Science, University of Tokyo

書誌事項

タイトル別名

• Spherical Harmonic Analysis in Terms of

抄録

Spherical harmonic expansion is affected by uneven distribution of observation points. A weighting scheme is proposed in order to reduce the effects. The weights of observation points are determined in order to homogenize the distribution. Spherical harmonic expansion of the synthetic geomagnetic data is demonstrated; the weighting works in terms of decrease of truncation error of the expansion. The method is applicable to find a new observation site and to prioritize present geomagnetic observatories.

収録刊行物

• Ｊｏｕｒｎａｌ　ｏｆ　ｇｅｏｍａｇｎｅｔｉｓｍ　ａｎｄ　ｇｅｏｅｌｅｃｔｒｉｃｉｔｙ

  Ｊｏｕｒｎａｌ　ｏｆ　ｇｅｏｍａｇｎｅｔｉｓｍ　ａｎｄ　ｇｅｏｅｌｅｃｔｒｉｃｉｔｙ 49 (8), 1013-1033, 1997

  地球電磁気・地球惑星圏学会

キーワード

• General Earth and Planetary Sciences
• General Environmental Science

詳細情報

• CRID: 1390001206511054592
• NII論文ID: 130003559559
• NII論文ID: 10002204255
• NII書誌ID: AA00698879
• DOI: 10.5636/jgg.49.1013
• ISSN: 21855765
• ISSN: 00221392
• NDL書誌ID: 4287752
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4287752
• 本文言語コード: en
• データソース種別:
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