Spherical Harmonic Analysis in Terms of Unevenly Distributed Observation Points and Its Applications to Geomagnetic Data.
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- Mochizuki Eiji
- Department of Earth and Planetary Physics, Faculty of Science, University of Tokyo
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- Yokoyama Yukiko
- Department of Information and Computer Science, University of Industrial Technology
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- Shimizu Itsujiro
- Department of Information and Computer Science, University of Industrial Technology
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- Hamano Yozo
- Department of Earth and Planetary Physics, Faculty of Science, University of Tokyo
Bibliographic Information
- Other Title
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- Spherical Harmonic Analysis in Terms of
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Description
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.
Journal
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- Journal of geomagnetism and geoelectricity
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Journal of geomagnetism and geoelectricity 49 (8), 1013-1033, 1997
Society of Geomagnetism and Earth, Planetary and Space Sciences
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Details 詳細情報について
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- CRID
- 1390001206511054592
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- NII Article ID
- 130003559559
- 10002204255
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- NII Book ID
- AA00698879
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- ISSN
- 21855765
- 00221392
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- NDL BIB ID
- 4287752
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed