Research On Relationship Between Wind Stress Anomalies In The Tropical Pacafic And SSTA In Kuroshio Region

The chief content of this article concludes three parts.Among it ,the research of third chapter involve: use extended SVD and Correlation analyse between NCEP wind stress data in Pacafic and SST field of kuroshio nearly 50 years show that there are distinctly positive correlativity between lagging SST of kuroshio and zonal wind field in tropical Pacafic region . The best correlation occasion is on sst of kuroshio lagging for 5-9 month. The well correlation times persist for about six months and the incidence level is reach or pass 0.01.The meridional wind field which persistly impacting on sst in kuroshio region is near the west tropical Pacafic.the result also behave as distinctly positive correlativity. Afterwards we investigate the relationship between sst in kuroshio region and Ninoc, 4 region and integrate the front conclusion.As a resultjt display that the sst in kuroshio region persists for positive relevance during the course of El-Nino and inversely during the course of La-Nina. Subsequently the synthetic fields of kuroshio region's SSTA in El-Nino and La-Nina years have proved the front outcome. Finally the article discusses the physical mechanism of meridional and zonal wind field's effect on sst in kuroshio region and think that justly the adjustion of macro- dimension wind field connects the two facts.Study content of the forth chapter goes forward. Firstly we choose those El-Nino or La-Nina years which is excitated by the westerly abnormity in the equatorial mid-Pacific Ocean. We make sure that the the characters of kuroshio SSTA in those years are similar to the years of all the El-Nino or La-Nina used in the upper section. Followed this ,we try to find the variety reason of kuroshio's SSTA and the physical mechanism connects sst change of kuroshio and wind field in the equatorial mid-Pacific Ocean. Our conlusion is : during the coruse of the Nov in El-Nino year(start from the westerly anomalous ) to Apr of next year ,it is just the intensity of east Asian monsoon that influents the sst variety in kuroshio region .the heat flux is the bridge links the two facts. And the gene which affects winter monsoon is the PEA circumfluence. It also explain that the correlation between SSTA of kuroshio and the change of wind field in equaroral mid -Pacific is results of air-sea interaction ; However, when time comes into summer ,the instance status of ocean is different from the last winter to next early springtime,the sea surface temperature turn into the definitive factor ,So the increase of heat flux in May to Jun month which is realized by absorbing more heat from the sun radiation results in the decrease of sst in kuroshio in the season of Jun-Jul .Finally ,During the Aug to Dec season of next year ,the sst of kuroshio is increasing again . it dues to the surface seawater's convergence in itself region.In the last chapter ,we mostly investigate the relations among winter SSTA in kuroshio region and the East Asia summer monsoon atmosphere circumfluence and the summer precipitation in China of the subsequent year .The study gets something significative (omitted here).