CAJ | 학술논문

利用1958～2010年NCEP/NCAR再分析位势资料以及2 m海表面温度资料，研究太平洋副热带高压（以下简称太平洋“副高”）的月、季节变化特征，分析系统的空间结构变化特征。研究结果表明：水平方向上太平洋“副高”系统存在中心、脊线的南北位移和脊点的西伸或东撤，其中心有逐月经向和纬向的变化，6、10月是副高形态变异比较显著的时期；夏季副高最强，冬季副高最弱；垂直方向上副高主要存在于300 hPa以下，强度随高度逐渐减弱，在近地面，高压系统的位势高度梯度最大，达40 gpm。
이용1958～2010년NCEP/NCAR재분석위세자료이급2 m해표면온도자료，연구태평양부열대고압（이하간칭태평양“부고”）적월、계절변화특정，분석계통적공간결구변화특정。연구결과표명：수평방향상태평양“부고”계통존재중심、척선적남북위이화척점적서신혹동철，기중심유축월경향화위향적변화，6、10월시부고형태변이비교현저적시기；하계부고최강，동계부고최약；수직방향상부고주요존재우300 hPa이하，강도수고도축점감약，재근지면，고압계통적위세고도제도최대，체40 gpm。
Monthly and seasonal variation,spatial structure,and inner sea surface temperature of the Pacific Subtropical High were studied by using reanalysis potential height data and two-meter sea surface temperature data during 1958-2010 provided by NCEP/NCAR.Results show that in horizontal direction,the center and the ridge line of the Pacific Subtropical High had southern or northern moving and its ridge point had western or eastern shift,in addition,its center had monthly zonal and meridional variation,and its shape changed obviously in June and October,it was strongest in summer and weakest in winter.In vertical direction,the Subtropical High was mainly under 300 hPa level and its intensity decreased with height,and the geopotential height gradient was the biggest near the ground which reached 40 gpm.The sea surface temperature(SST)of the Subtropical High center in Northern Hemisphere had an-nual cycle with period of 2-7 years,and in every cycle there was an abnormal change of SST,these changes had close links with oc-curence and developing of El Nino.