Effects of GCR Forbush decreases on atmospheric parameters in the Antarctic

We consider the effects of fifty solar flares during the 1981-1991 solar cy cle and that of the corresponding Galactic-cosmic-ray (GCR) Forbush decreas es in pressure, temperature, and wind variations in the Antarctic. At the V ostok station (Phi = 89.3 degrees), GCR Forbush decreases cause a rise in n ear-ground temperature from 4 to 24 degreesC (by 12.5 degreesC, on the aver age), a change in pressure by 1.5-5% at altitudes 0, 5, 10, and 15 km, and a change in wind direction by 80 degrees -100 degrees, depending on altitud e. During the intense Forbush decrease of June 13, 1991, at Vostok, Mirny ( Phi = 76.8 degrees), Molodezhnaya (Phi = 70.2 degrees), and Novolazarevskay a (Phi = 66.8 degrees), the wind changed both its direction from 270 degree s to 50 degrees on the second-fifth days and its velocity from 4 to 22 km s (-1), depending on latitude.