| 近百年四季西太平洋副热带高压的变化 |
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| 引用本文： | 慕巧珍,王绍武,龚道溢.近百年四季西太平洋副热带高压的变化[J].气象学报,2002,60(6):668-679. |
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| 作者姓名： | 慕巧珍 王绍武 龚道溢 |
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| 作者单位： | 1. 北京大学地球物理系,北京,100871
2. 北京师范大学,环境演变与自然灾害教育部重点实验室,北京,100875 |
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| 基金项目： | 国家重点基础研究发展规划 (G19980 40 91-2 )，自然科学基金重点项目 ( 4 96 35 190 )。 |
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| 摘 要： | 文中设计了一种根据网格点高度值拟合副热带高压强度、西界、北界 3种指数的方法。根据这个方法 ,利用重建的 1880～ 195 0年 5 0 0hPa月平均高度序列 ,计算了 195 1年之前 70a的副热带高压指数 ,与 195 1～ 1999年的实测指数合成一个 12 0a的序列 ,研究了西太平洋副热带高压的年际与年代际变率。
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| 关 键 词： | 西太平洋副热带高压 副热带高压指数 500hPa高度场 |
| 收稿时间： | 5/8/2001 12:00:00 AM |
| 修稿时间： | 2001年5月8日 |
VARIATIONS OF WESTERN PACIFIC SUBTROPICAL HIGH IN FOUR SEASONS DURING THE LAST HUNDRED YEARS |
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| Mu Qiaozhen,Wang Shaowu and Gong Daoyi.VARIATIONS OF WESTERN PACIFIC SUBTROPICAL HIGH IN FOUR SEASONS DURING THE LAST HUNDRED YEARS[J].Acta Meteorologica Sinica,2002,60(6):668-679. |
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| Authors: | Mu Qiaozhen Wang Shaowu and Gong Daoyi |
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| Institution: | Department of Geophysics, Peking University, Beijing 100871;Department of Geophysics, Peking University, Beijing 100871;Institute of Resources Science, Beijing Normal University, Beijing 100875 |
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| Abstract: | Anewmet hod is designed to calculate the strength index (IS),the western limitindex (IW) and the northern limitindex (IN) of Subtropical High (STH) with the 500 hPa geopotential heightset.Based on this statistical method,three ST Hindices of 12 months are reconstructed back to year 1880 using reconst ructed 500hPa geopotential height set from 1880 to 1950.Then the 120 year sets of the STH indices are got with the observed 1950 1999 ST Hindices provided by NCC1.It forms a 12 month series from 1880 to 1999.Then,power spectra and wavelet transformation are made to analyze the annual and interannual variation of IS,IW and IN during 1880 and 1999. |
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| Keywords: | Western Pacific subtropical high Subtropical high indices 500 hPa geopotential heights |
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