Identifying the northernmost summer monsoon location in East Asia
Identifying the northernmost summer monsoon location in East Asia
复制标题
DOI：
10.1080/10002007088537477
复制
发表时间：
2007-08
期刊：
影响因子：
--
通讯作者：
Hu Haoran;Q. Wei-hong
中科院分区：
文献类型：
--
作者：
Hu Haoran;Q. Wei-hong
本文提出了一个综合指数，它可以用来指示东亚副热带夏季风的推进。该指数由降水、风和伪等效位温三个变量组合而成。最北夏季风位置（NSML）确定每年使用该指数。通过对1961 - 2001年的年指数分析，发现1977-1979年期间NSML发生了年代际变化。并与四阶夏季风指数作了比较。结果表明，NSML能够很好地反映华北地区（35°N以上）夏季风降水的年际和年代际变化，而其他四个指数则能够很好地反映东亚夏季风沿着长江流域（30°N左右）降水的异常。* 国家自然科学基金资助（No. 40475032）和国家重点基础研究计划（N.
Abstract An integrated index which can be used to indicate the advance of subtropical summer monsoon in East Asia has been proposed in this paper. The index was combined by three variables including precipitation, wind and pseudo-equivalent potential temperature. The northernmost summer monsoon location (NSML) was identified by using this index annually. It was found that the NSML experienced an interdecadal shift in the period 1977–1979 based on the annual index analysis from 1961 to 2001. A comparison of the NSML with order four summer monsoon indices has also been made. The result showed that the NSML could well represent the interannual and interdecadal variability of summer monsoon precipitation in North China (beyond 35°N), while other four indices could well indicate the precipitation anomalies of East Asian summer monsoon along the Yangtze River valley (around 30°N) *Supported by National Natural Science Foundation of China (Nos. 40475032) and the National Program on Key Basic Research Projects (N...