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A possible impact of the North Atlantic Oscillation on the east Asian summer monsoon precipitation
Author(s) -
Sung MiKyung,
Kwon WonTae,
Baek HeeJeong,
Boo KyungOn,
Lim GyuHo,
Kug JongSeong
Publication year - 2006
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 - 10.1029/2006gl027253
Subject(s) - east asia , climatology , precipitation , north atlantic oscillation , east asian monsoon , jet stream , monsoon , china , atmospheric circulation , environmental science , geology , oceanography , geography , jet (fluid) , meteorology , physics , archaeology , thermodynamics
This letter reports on a possible delayed impact of the winter North Atlantic Oscillation (NAO) on the following east Asian summer monsoon precipitation. An analysis of weather station data shows significant correlations between the December NAO index and precipitation over Korea and China in the subsequent summer. It appears that the correlation may be related to a wave train pattern which originates from the North Atlantic. The east Asian branch of this wave train can affect large‐scale circulation and the precipitation over east Asia in early summer. We also found a significant interdecadal change of this relationship, which is possibly linked to a climatological change of the east Asian jet stream.