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Information × Registration Number 0223U000459, 0122U200269 , R & D reports Title Research of wave processes in the atmospheres of the Earth and the Sun. Support of the Program. Section "Study of long-term changes in solar oscillations and quasi-biennial oscillations" popup.stage_title Head Osipov Serhii M., Кандидат фізико-математичних наук Registration Date 07-01-2023 Organization Main Astronomical Observatory of the National Academy of Sciences of Ukraine popup.description2 Object of study - solar activity, solar oscillations, acoustic waves. The purpose of the study – Investigation of long-term changes of solar p- and HIPs modes according to the data of extraterrestrial observations carried out by space photometers SOHO/GOLF and SOHO/VIRGO since 1996, as well as the study of quasi-biennial oscillations of the Sun according to space and ground based observations. Research Method - 1) correlation and spectral analysis of data series of brightness fluctuations and doppler shifts registered from the entire disk of the Sun, 2) construction of global wavelet spectra of various series of manifestations of the Sun's activity for 18-24 solar cycles. Results and their novelty - 1) algorithms and methods for diagnosing changes in the power of solar p- and HIPs-modes were developed, changes in the power of solar p- and HIPs-modes over time were investigated based on the series of observational data of the SOHO/GOLF and SOHO/VIRGO photometers; 2) the existence of periods close to one year in the data series of various manifestations of the Sun's activity has been established.  Product Description popup.authors Vasyl'eva Iryna E Kostyk Roman I. Osipov Serhii M. Shchukina Nataliia H. popup.nrat_date 2023-01-07 Close