An analysis of jet streams over Japan on 3 November 1952

Abstract

High tropospheric conditions of wind and temperature fields of 3 November 1952 are analysed in detail. Observed winds show the two branches of jet stream, i.e. subtropical and polar-front jet; the former at 200mb near 37°N, the latter at 260mb near 45°N. Three main tropopauses (i.e. tropical, polar-front, and polar tropopauses) are distinguished, and subtropical upper frontal zone is situated under the subtropical jet in its well-developed form.