Open AccessBoreal summer convection oscillation over the Indo‐Western Pacific and its relationship with the East Asian summer monsoon
Author(s) -
Li Yanjie,
Li Jianping,
Feng Juan
Publication year - 2013
Publication title -
atmospheric science letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.951
H-Index - 45
ISSN - 1530-261X
DOI - 10.1002/asl2.418
Subject(s) - climatology , subtropics , monsoon , boreal , subtropical ridge , convection , east asian monsoon , oceanography , western hemisphere warm pool , indian ocean , pacific decadal oscillation , yangtze river , geology , east asia , el niño southern oscillation , geography , precipitation , meteorology , china , paleontology , archaeology , fishery , biology
Statistical analysis shows that the Indo‐Pacific convection oscillation ( IPCO ) in boreal summer undergoes quasi‐biennial variability, and is closely related to the East Asian summer monsoon ( EASM ). Negative IPCO phases, which exhibit an enhanced convection over the north Indian Ocean and a suppressed convection over the western North Pacific, favor a weakened EASM and an increase of summer rainfall in the Yangtze River valley with the joint actions of the stronger than normal Ural and Okhotsk blocking highs and the subtropical western Pacific high, and vice versa. Copyright © 2013 Royal Meteorological Society