 |
| Titel |
Advanced high-resolution spherical harmonic synthesis and analysis in geodesy |
| VerfasserIn |
Christian Gruber, Pavel Novak, Josef Sebera |
| Konferenz |
EGU General Assembly 2010
|
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 12 (2010) |
| Datensatznummer |
250037528
|
|
|
|
|
|
| Zusammenfassung |
| High resolution spherical harmonic modelling of the Earth gravity field as well as of alternative data sets such as, e.g., global topography data (ETOPO1) is discussed in this contribution. The spherical harmonic analysis and synthesis are based on a rigorous method in spectral domain for the computation of respective base functions. New benchmarks for the run-time performance and numerical precision will be presented concerning the expansion of the spherical harmonic series or the spherical harmonic analysis of available data sets up to the equiangular resolution of 1 arcmin x 1 arcmin that corresponds to spherical harmonic degree 10,800. The computations are based on standard desktop, shared memory architecture. |
|
|
|
|
|
|