Coronal imprints in the heliospheric plasma and magnetic fields at the Earth's orbit during the last three solar minima

A. V. Dmitriev, A. V. Suvorova, I. S. Veselovsky, M. A. Zeldovich

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The periods 1975-77, 1985-87 and 1995-97 were selected between pivot points of the solar cycles to analyze available spacecraft data for three successive solar minima. The mean values of the solar wind velocity, dynamic pressure, and temperature are decreasing during each indicated time interval. All variations are of several 0.1. The interplanetary magnetic field is minimal at solar minima. There is no strong difference between solar wind and interplanetary magnetic field parameters as well as solar activity indices for these solar cycles. Nevertheless, the proton cosmic ray intensities and spectra during these especially quiet periods possibly show the remarkable 22-year variation with the minimal proton fluxes in 1985-87.

Original languageEnglish
Pages (from-to)1965-1968
Number of pages4
JournalAdvances in Space Research
Volume25
Issue number9
DOIs
StatePublished - May 2000

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