The influence of the water level of the Kuibyshev reservoir on the latitude of the Engelhardt Observatory

Details The influence of the water level of the Kuibyshev reservoir on the latitude of the Engelhardt Observatory The influence of the water level of the Kuibyshev reservoir on the latitude of the Engelhardt Observatory

Dec 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990kfnt....6...79k&link_type=abstract

Kinematika i Fizika Nebesnykh Tel (ISSN 0233-7665), vol. 6, Nov.-Dec. 1990, p. 79-82. In Russian.

Astronomy and Astrophysics

Astronomy

Limnology, Reservoirs, Sea Level, Annual Variations, Gravitational Fields, Harmonic Analysis, Optical Correction Procedure, Telescopes, U.S.S.R.

Scientific paper

The Engelhardt Astronomical Observatory is situated near the Kuibyshev reservoir (the largest in Europe), in which the water level varies with an annual period. The presence of this variable mass near the observatory leads to annual variations of the local vertical, which in turn has an effect on the magnitude of nonpolar fluctuations of the latitude of the ZTL-180 telescope. A method is proposed which corrects for the water-level effects; the corrections amount to + or - 0.015 arcsec.

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