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Wavelet Modelling of Regional and Temporal Variations of the Earth ’ s Gravitational Potential Observed by GRACE
| Content Provider | Semantic Scholar |
|---|---|
| Author | Schreiner, Michael Bauer, Franz Freeden, Willi Fengler, M. J. Mayer, Carsten Michel, P. |
| Abstract | This work is dedicated to the wavelet modelling of regional and temporal variations of the Earth’s gravitational potential observed by GRACE. In the first part, all required mathematical tools and methods involving spherical wavelets are introduced. Then we apply our method to monthly GRACE gravity fields. A strong seasonal signal can be identified, which is restricted to areas, where largescale redistributions of continental water mass are expected. This assumption is analyzed and verified by comparing the time series of regionally obtained wavelet coefficients of the gravitational signal originated from hydrology models and the gravitational potential observed by GRACE. The results are in good agreement to previous studies and illustrate that wavelets are an appropriate tool to investigate regional timevariable effects in the gravitational field. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://mediatum.ub.tum.de/doc/1367815/318539.pdf |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Coefficient Hydrology Köppen climate classification Legendre wavelet Mathematics Time series |
| Content Type | Text |
| Resource Type | Article |