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On the variation of Latitude at Dehra Duñ

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Summary

The diurnal and Z-terms as deduced from the latitude observations at dehra Du~n during 1930–33 are discussed. The Z-term has different amplitudes during each year and is explained satisfactorily by an empirical term of the forma 2 sin (2 |7—α—A2). Its amplitude is so large, that it cannot be explained quantitatively by seasonal periodicity of the Isopycnic surfaces.

The closure errors of the chain during the three years, and some of the causes which produce them are discussed.

The Dehra Dũn observations show no evidence of a relation between latitude variation and moon’s age.

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References

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Authors and Affiliations

  1. Survey of India, Dehra Dũn

    B. L. Gulatee

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  1. B. L. Gulatee
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(Communicated by Sir C. V. Raman, KT. F.R.S., N.L.)

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Gulatee, B.L. On the variation of Latitude at Dehra Duñ. Proc. Indian Acad. Sci. (Math. Sci.) 4, 383–403 (1936). https://doi.org/10.1007/BF03036381

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  • DOI: https://doi.org/10.1007/BF03036381

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