子波变换在全球气候多时间尺度变化分析中的应用

APPLICATION OF WAVELET TRANSFORMATION TO ANALYSIS OF MULTIPLE TIME SCALE CLIMATE CHANGE

摘要:

用墨西哥帽子波变换分析南、北半球及全球气候变化的多时间尺度结构、突变点。结果表明,气候变化在不同时间尺度下具有不同的冷暖结构和突变点;南、北半球气候变化有较大差异。说明子波变换方法是气侯变化研究的有力工具。

Abstract:

Mexican Hat-form wavelet transformation is used to investigate the structures of bihemispheric and global climate change at multi-time scales and the points of abrupt change. The results suggest that climate change exhibits different cold-warm structures and abrupt points at these scales, displaying remarkable difference between the hemispheres, indicating that wavelet transformation is a powerful tool in the study of climate change.