Based on the precipitation of summer at 83 stations in Guizhou from 1979 to 2011 and the mean monthly reanalysis SST data,the relationship between summer precipitation and the SST in the Pacific Ocean are investigated in terms of SVD. The results are as follows:(1) The key SST region which influencing precipitation in Guizhou from California cold current to Kuroshio from previous summer to spring,the relationship between SST in spring and precipitation in Guizou is not close,the relationship between the previous SST and precipitation in the middle-east of Guizhou is closer. (2) Composite analysis results are as follows: In flood year,the distribution of Northern Pacific Ocean SST from west-north to east-south is ‘-+-’,but in drought year the distribution of Northern Pacific Ocean SST from west-north to east-south is ‘-+-’,the relationship between rainfall rich and El Nino events isn't close,but the relationship between rainfall deficit and La Nina event is close. (3) The possible mechanism that the influence of previous Northern Pacific Ocean SST on precipitation in Guizhou:Northern Pacific Ocean SST rising can cause wave train spreading to the middle Western Pacific Ocean,which making the Western Pacific subtropical high moving to west,benefiting to rainfall；the influence of Northern Pacific Ocean SST dropping was not as good as those caused by SST rising,it can cause Western Pacific subtropical high moving to east,not benefiting to rainfall.
WANG Fen
,
CAO Jie
,
TANG Haopeng
,
GU Xiaoping
,
YANG Ruowen
. Impact of SST in Northern Pacific Ocean on Flood Season Precipitation in Guizhou[J]. Plateau Meteorology, 2014
, 33(4)
: 925
-936
.
DOI: 10.7522/j.issn.1000-0534.2013.00090
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