Analytical Study of the Low-Level Jet Stream

The low-level jet stream which appeared near the meso-low on the "Baiu" front, the stationary front in the rainy season in Japan, is analyzed. It is revealed that its dimensions were 500 km in diameter and 4 km in depth. It is also found that the jet core preceded the meso-low center, and the strong vertical current appeared in the lee side of the jet core. An improved technique is applied on the aerological data analysis.