CAJ | 학술논문

采用NCEP/NCAR再分析资料，定义了1950-2009年菲律宾越赤道气流强度指数，并研究其与南半球大气环流的关系。结果表明，菲律宾越赤道气流受南半球低层极地高压、绕极低压带和中纬度副热带高压，以及高层巨大的绕极低压影响；南半球环流对菲律宾越赤道气流的影响主要是通过南极涛动的调整，对澳大利亚高压产生影响来发挥作用，从南极涛动发生调整到对越赤道气流及北半球环流产生影响，有约4a的时滞；澳大利亚高压强度和位置的变化对菲律宾越越赤道气流有重要影响，关键区位于澳大利亚高压西北方向的洋面上。
채용NCEP/NCAR재분석자료，정의료1950-2009년비률빈월적도기류강도지수，병연구기여남반구대기배류적관계。결과표명，비률빈월적도기류수남반구저층겁지고압、요겁저압대화중위도부열대고압，이급고층거대적요겁저압영향；남반구배류대비률빈월적도기류적영향주요시통과남겁도동적조정，대오대리아고압산생영향래발휘작용，종남겁도동발생조정도대월적도기류급북반구배유산생영향，유약4a적시체；오대리아고압강도화위치적변화대비률빈월월적도기류유중요영향，관건구위우오대리아고압서북방향적양면상。
Based on the 1950-2009 NCEP/NCAR reanalysis data, the intensity index of Philippines cross-equatorial flow is defined to analyze its relationship with Southern Hemispheric atmospheric circulation. Results show that Philippines cross-equatorial flow is affected by the polar high, the depression belt around the pole, and the mid-latitude subtropical high in the lower troposphere, and also affected by the huge low pressure system around the pole in the upper troposphere over the Southern Hemisphere. Southern Hemispheric atmospheric circulation influences the cross-equatorial flow primarily through the adjustment of the Antarctic Oscillation which affects Australian high. And there is an about four-year delay from the adjustment of the Antarctic Oscillation to the responses of the cross-equatorial flow and the Northern Hemispheric atmospheric circulation. The strength and position changes of Australian high have important influence on the cross-equatorial flow , and the key area locates in the northwest ocean of Australian high.