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.- ------:) OJJ7'i8 ~~, ! ) ",;,~~-,. _3- In section 2, it is proposed that research be done into determiniDg the possibilities of predicting the changes in atmospheric wind systems that' bring about the changes in the weather factors. During the past two years, part of the work of the High Al ti tude Observatory has been directed toward investig4ting the atmospheric wind systems and their possible relationship to changes on the sun. A suggestive new result has been the detect.ion of apparent changes in the "jet stream" followiDg abrupt increases in the IllIlIlber of particles arriving from the sun in the high atmosphere of the earth. Within a week or ten days the. jet stream disturbance is refiected in the entire pattern of the atmospheric wind system resu1t~ in a strong north-to-south motion of air. The jet stream changes he. ve OCCUITed during the past two winters, and there is some' evidence thatth81 may occur during other 'years and .seasons as well. At the same t:lme, research ail other institutes throughout the world indicates th8.t there may also be an influence on the earth's atmos- phere introduced by other types of changes in the sun's r~ation. . Thus the evidence is mounting that a solar influence may exist on the earth's wind systems. In turn, it seems plausible that basic changes in these atmospheric wind patterns may be the cause of extended periods of drought or rainfall over large areas. But much remains to be dODll' - not just in efforts to understand solar influ- ences, but in 'understanding the effects of these disturbed wind systems on such weather elements as rainfall and temperature. '.. --- The High Altitude Observatory believes that a well-organized attack should be made on this problem for at least two years. This will require the close coordination of solar and upper atmospherio physicists with meteorologists. a ~ u~t9 ILMAFJ {~: t? --.4.- ,,~~ (}TU~ {r))'~r --. C) v v