Premium
Tropospheric cooling and summer monsoon weakening trend over East Asia
Author(s) -
Yu Rucong,
Wang Bin,
Zhou Tianjun
Publication year - 2004
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2004gl021270
Subject(s) - troposphere , east asia , climatology , monsoon , stratosphere , east asian monsoon , environmental science , flood myth , jet stream , westerlies , atmospheric sciences , china , geology , geography , jet (fluid) , thermodynamics , physics , archaeology
A distinctive strong tropospheric cooling trend is found in East Asia during July and August. The cooling trend is most prominent at the upper troposphere around 300 hPa. Accompanying this summer cooling the upper‐level westerly jet stream over East Asia shifts southward and the East Asian summer monsoon weakens, which results in the tendency toward increased droughts in northern China and flood in Yangtze River Valley. The observational evidences raise the possibility that the East Asian summer tropospheric cooling links to the stratosphere temperature changes and the interaction between the troposphere and stratosphere.