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article · Journal of geomagnetism and geoelectricity · 1957

Geomagnetic Secular Variation during the Period from 1950 to 1955

Takesi Nagata, Tsuneji Rikitake

Cited by 15Open access

Abstract

The geomagnetic secular variation during the period from 1950 to 1955 is estimated on the basis of annual mean values of the geomagnetic field at some seventy magnetic observatories distributed all over the earth. Judging from the spherical harmonic analysis of the variation, it seems likely that the magnetic moment of the earth's dipole is still decreasing.

Cite this paper

APA 7

Nagata, T., & Rikitake, T. (1957). Geomagnetic Secular Variation during the Period from 1950 to 1955. Journal of geomagnetism and geoelectricity, 9(1), 42–50. https://doi.org/10.5636/jgg.9.42

MLA 9

Nagata, Takesi, and Tsuneji Rikitake. “Geomagnetic Secular Variation during the Period from 1950 to 1955.” Journal of geomagnetism and geoelectricity, vol. 9, no. 1, 1957, pp. 42–50, https://doi.org/10.5636/jgg.9.42.

Chicago

Nagata, Takesi, and Tsuneji Rikitake. 1957. “Geomagnetic Secular Variation during the Period from 1950 to 1955.” Journal of geomagnetism and geoelectricity 9 (1): 42–50. https://doi.org/10.5636/jgg.9.42.

Harvard

Nagata, T. and Rikitake, T. (1957) ‘Geomagnetic Secular Variation during the Period from 1950 to 1955’, Journal of geomagnetism and geoelectricity, 9(1), pp. 42–50. Available at: https://doi.org/10.5636/jgg.9.42.

BibTeX
@article{nagata1957geomagnetic,
  title = {{Geomagnetic Secular Variation during the Period from 1950 to 1955}},
  author = {Nagata, Takesi and Rikitake, Tsuneji},
  journal = {Journal of geomagnetism and geoelectricity},
  volume = {9},
  number = {1},
  pages = {42--50},
  year = {1957},
  doi = {10.5636/jgg.9.42}
}

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