Time-space multiscale analysis by use of tensor product wavelets and its application to hydrology and GRACE data
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- 作者：H. Nutz and K. Wolf
- 关键词：multiresolution analysis ; spherical wavelets ; Legendre wavelets ; time ; space multiresolution analysis
- 刊名：Studia Geophysica et Geodaetica
- 出版时间：July, 2008
- 出版年：2008
- 期刊代码：66_00393169
- 类别：law
- 卷：52
- 期：3
- 页码：321-339
- 数据来源：sp
摘要
This paper presents a wavelet analysis of temporal and spatial variations of the Earth’s gravitational potential based on tensor product wavelets. The time-space wavelet concept is realized by combining Legendre wavelets for the time domain and spherical wavelets for the space domain. In consequence, a multiresolution analysis for both temporal and spatial resolution is formulated within a unified concept. The method is then numerically realized by using first synthetically generated data and finally two real data sets.