Abstract
Usual methods of tidal analysis, developed by Darwin, Doodson, Lecolazet, Pertzev, Lennon and others, have been used for analyzing earth tidal data. With the recent remarkable progress of electronic computers, the least square method and Fourier analysis are also used widely for the same purpose. In the present article, results of the analysis of earth tidal data by means of the least square method are presented. The data were obtained with an Askania gravimeter No. 111 at Kyoto. The results thus obtained were in good agreement with those by the usual methods. A program for the least square method was written with the FORTRAN II and it is available for analyzing not only the earth tidal data but also for any periodic phenomena.