气候变化研究进展2018，Vol.14Issue(2)：111-119,9.DOI:10.12006/j.issn.1673-1719.2017.069
夏季南亚高压及西太平洋副热带高压强度变化与前期海温异常的关系
The influence of tropical ocean on the South Asia High and the Western Pacifica Subtropical High
摘要
Abstract
The influence on both South Asia High (SAH) and the Western Pacifica Subtropical High (WPSH) during summertime is investigated in this paper with a development of a tropical sea surface temperature (SST), based on the NCEP/NCAR reanalysis data from 1951 to 2010. Some reasons for both development of those two systems have been researched: When the systems are both strong and the SST is warm (the systems are week and the SST is cold), in the winter and spring season the equatorial Indian–Pacific SST anomaly shows a significant positive–negative–positive (negative–positive–negative) pattern, which is like the El Ni?o (La Ni?a) phenomenon. A high-level westerly (easterly) wind flows near Indochina troposphere, which is helpful (against) for anomalous anticyclonic circulation in the south, so as to promote (block) the development of SAH. The sinking (rising) flow in Philippine area is conducive (unfavorable) to the anomalous anticyclonic circulation in the northwest side, so as to promote (block) the development of lower WPSH. In summertime, warming of the tropical Indian Ocean SST increase (decrease) the local convection effect effectively, making the tropospheric temperature rising (reducing), which affects SAH and WPSH.关键词
南亚高压/西太平洋副热带高压(西太副高)/大气环流/海温Key words
South Asia High/Western Pacific Subtropical High (WPSH)/Atmospheric circulation/SST引用本文复制引用
冯琬,范广洲,龙妍妍..夏季南亚高压及西太平洋副热带高压强度变化与前期海温异常的关系[J].气候变化研究进展,2018,14(2):111-119,9.基金项目
国家自然科学基金(41275079,41405069) （41275079,41405069）
国家青年科学基金项目"青藏高原绕流系统对我国天气气候的影响"(41305077) （41305077）
中国民航飞行学院青年基金项目(Q2014-067) （Q2014-067）
