Northern Hemisphere airstream regions.

Abstract

Near-surface airstream source regions of the Northern Hemisphere have been identified using 16yr mean resultant winds from 3o latitude by 3o longitude grids. Tracing the airstreams back to their divergent centers reveals 19 different sources during various seasons of the year. In the mean, there are several favored locations for frontal zones, a N-S band in Mexico, a N-S band in northern S America, and 2 NE-SW trending bands over the E coasts of Asia and N America, representing the mean leading edges of continental airmasses. -from Authors