Tropopause

Dynamical analysis of tropopause folding events in the coastal region of Antarctica

Tropopause folding events (TFs) are characterized by the rapid and deep descent of the tropopause and is considered to play a significant role in mass exchange between the stratosphere and troposphere. In the present study, TFs occurring in the …

A Diagnostic Equation for Tendency of Lapse-Rate-Tropopause Heights and Its Application

The tropopause is the boundary between the troposphere and stratosphere and is normally defined by the temperature lapse rate. Previous studies have noted that synoptic-scale and planetary-scale disturbances bring about lapse-rate-tropopause (LRT) …

極域対流圏界面雲の出現に関する力学的研究―2016年度山本賞受賞記念講演―

Variability of upper tropospheric clouds in the polar region during stratospheric sudden warmings

The variability of upper tropospheric clouds during stratospheric sudden warmings (SSWs) in 2009, 2010, and 2012 in the Northern Hemisphere is examined using satellite observations and reanalysis data. It is shown that the zonal mean cloud frequency …