Abstract
A secondary anticylone appears invariably over a lofty mountainous district when a large continental or oceanic high stretches out towards that district, while a typhoon splits into 2 parts, when it crosses over a mountain range. In this paper, these facts are illustrated by referring to isobaric distorsions in various weather maps and they are possibly, explained by three theories, i. e. 1. static theory, 2. dynamic theory, 3. frictional theory.
However, the dynamic action is too feeble to exert any noteworthy influence upon the typhoon. And the friction is also incompetent to account for the anticyclonic emergence over high mountains, though it may explain the decline of typhoon on land.
