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We study the 27-day variations of the galactic cosmic ray (GCR) intensity and three dimensional (3-D) anisotropy in different polarity periods of the solar magnetic cycle. We found that the larger amplitudes of the 27-day variations of the galactic cosmic ray anisotropy and intensity in the minimum epochs of solar activity for the A > 0 polarity period than for the A < 0 period are related with the heliolongitudinal asymmetry of the solar wind velocity. We reveal the long -lived (∼ 22 years)doi:10.5194/astra-4-31-2008 fatcat:kkgpxxtpdvgotogdsgdvef3sda