| 广西近百年气温和降水序列的多时间尺度分析 |
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| 引用本文： | 黄雪松,况雪源,覃峥嵘,黄梅丽,林开平.广西近百年气温和降水序列的多时间尺度分析[J].气候变化研究进展,2007,3(6):362-367. |
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| 作者姓名： | 黄雪松 况雪源 覃峥嵘 黄梅丽 林开平 |
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| 作者单位： | 广西区气候中心 |
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| 基金项目： | 广西科技攻关项目;广西气象局重点研究项目 |
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| 摘 要： | 对广西近百年平均气温及降水量变化进行了多时间尺度的层次结构研究，并与Nino3区的海温距平进行奇异交叉谱分析。结果表明：平均气温有较强上升趋势并伴有明显的准两年周期振荡；降水则呈下降趋势，主要周期为32 a左右及准两年振荡。1884至1910年代初，广西处于干冷期；1910年代初至1930年前后，处于湿冷期；1930年前后至1950年代后期，处于湿暖期；1950年代后期至1990年代前期，处于干暖期。ENSO事件3~7 a的周期对广西平均气温及降水影响显著，赤道太平洋海温变化对广西气温的影响主要表现在年代际变化上，对降水的影响主要体现在年际变化上。
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| 关 键 词： | 广西 近百年气候变化 小波分析 奇异交叉谱分析 |
| 文章编号： | 1673-1719（2007）06-0362-06 |
| 收稿时间： | 2007-01-30 |
| 修稿时间： | 2007-04-24 |
Multi-Time-Scale Variations of Recent Centenary Series of Temperature and Precipitation in Guangxi of China |
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| Huang Xuesong,Kuang Xueyuan,Qin Zhengrong,Huang Meili,Lin Kaiping.Multi-Time-Scale Variations of Recent Centenary Series of Temperature and Precipitation in Guangxi of China[J].Advances in Climate Change,2007,3(6):362-367. |
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| Authors: | Huang Xuesong Kuang Xueyuan Qin Zhengrong Huang Meili Lin Kaiping |
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| Abstract: | Wavelet analysis was used in this paper to study the multi-time-scale structure of the temperature and precipitation series in Guangxi Zhuang Autonomous Region in the recent century, and the coupled characteristics between the sea surface temperature of Nino3 region and the two series mentioned above were diagnosed by using singular cross-spectrum analysis (SCSA). The results indicate that the ascending trend accompanied with the quasi-biennial oscillations dominated in the temperature variation while the precipitation showed a descending trend with the 32-year and quasi-biennial oscillations. Guangxi climate was characteristic of dry-cold from 1884 to the early 1910s, wet-cold from the early 1910s to around 1930, wet-warm from around 1930 to the late 1950s, and dry-warm from the late 1950s to the early 1990s. The 3-7-year oscillation component of ENSO exerted marked influence on Guangxi climate. The coupled variations of SST in the Nino3 region and Guangxi climate were reflected on the decadal scale for temperature and interannual scale for precipitation. |
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| Keywords: | Guangxi climate change in recent century wavelet analysis singular cross-spectrum analysis |
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