title: Relation of Geomagnetic Disturbances to Circulation Changes at 30,000-Foot Level.
abstract: From analyses of waves in the circulation pattern at the jet-stream level of the atmosphere during the winters of 1956-57 and 1957-58, it was found that, in comparison with other waves, those which appeared in the Alaska-Aleutian area about 3 days after a magnetic disturbance subsequently developed into large-amplitude disturbances.
authors.forename: N J
authors.initials: NJ
authors.lastname: Macdonald
authors.forename: D D
authors.initials: DD
authors.lastname: Woodbridge