| 西北太平洋热带气旋的年际和年代际变化及其与南亚高压的关系 |
| |
| 引用本文： | 张艳霞,钱永甫,王谦谦.西北太平洋热带气旋的年际和年代际变化及其与南亚高压的关系[J].应用气象学报,2004,15(1):74-80. |
| |
| 作者姓名： | 张艳霞 钱永甫 王谦谦 |
| |
| 作者单位： | 1.南京大学大气科学系, 南京 210093 |
| |
| 基金项目： | 国家自然科学基金“南亚高压和亚洲季风相互作用及其机理研究”( 4 0 1 75 0 2 1 )，“江淮梅雨年际和年代际变化规律及其机制研究”( 4 0 2 3 3 0 3 7)资助 |
| |
| 摘 要： | 利用1949～1996年48年西北太平洋热带气旋(TC)的年个数资料和1958～1997年40年南亚高压(SAH)特征参数的月平均资料，讨论了西北太平洋TC年个数的年际、年代际变化、年个数周期和周期能量等特点及其与SAH特征参数的关系和异常TC年前期SAH环流场和100 hPa高度场的特征。结果表明，西北太平洋TC具有明显的年际和年代际变化，前期SAH对当年TC频数有一定影响，SAH中心位置偏北、偏西，中心强度偏弱时，当年TC偏多，反之，当年TC偏少。
|
| 关 键 词： | 西北太平洋 热带气旋(TC) 南亚高压(SAH) 年际年代际变化 |
| 收稿时间： | 2002-06-05 |
| 修稿时间： | 2002年6月5日 |
The Interannual and Interdecadal Variations of Tropical Cyclones in the Northwest Pacific and Its Relationship with the South Asia High |
| |
| Zhang Yanxia,Qian Yongfu.The Interannual and Interdecadal Variations of Tropical Cyclones in the Northwest Pacific and Its Relationship with the South Asia High[J].Quarterly Journal of Applied Meteorology,2004,15(1):74-80. |
| |
| Authors: | Zhang Yanxia Qian Yongfu |
| |
| Institution: | 1.Department of Atmospheric Science , Nanjing University , Nanjing 2100932.Nanjing Institute of Meterology , Nanjing 210044 |
| |
| Abstract: | By use of annual numbers of the Tropical Cyclone (TC) in 48 years (1949-1996) and monthly mean characteristic parameters of the South Asia High (SAH) in 40 years (1958-1997), the features of interannual and interdecadal variations as well as the period and period energy of the annual TC numbers are analyzed. Furthermore, the relationships between the annual TC numbers and the characteristic parameters of SAH are depicted, and the features of the SAH circulation and the 100 hPa height field in prior time in TC abnormal years are also composed and discussed. The results show that the TC numbers in Northwest Pacific have obvious interannual and interdecadal variations, and that the SAH in prior time has a certain influence on the TC frequency in a year. When the center of the SAH goes more westward and northward, and its center intensity is weaker, the TC numbers in the year would be more, and vice versa. |
| |
| Keywords: | Northwest Pacific Tropical cyclone South Asia High Interannual and interdecadal variation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《应用气象学报》浏览原始摘要信息 |
| 点击此处可从《应用气象学报》下载免费的PDF全文 |
