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| Titel |
Spectral representations of Earth inner density structures and gravity field |
| VerfasserIn |
P. Novák, R. Tenzer, P. Vajda |
| Konferenz |
EGU General Assembly 2012
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 14 (2012) |
| Datensatznummer |
250067682
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| Zusammenfassung |
| We give a consistent mathematical scheme which can be applied uniformly for a description of the Earth inner density structures and the forward modeling of respective gravitational field parameters. The mathematical scheme facilitates the generic expressions describing the spatial chracteristics of an arbitrary density (contrast) layer with a variable depth and thickness having a laterally distributed radial density variation and its gravitational field. The information on the geometry and density distribution of a volumetric mass layer is described by means of spherical harmonics. These generic expressions can uniformly be applied to model all major known density structures within the Earth interior using methods for a spherical harmonic analysis and synthesis of the gravitational field. This is demonstrated on specific examples given for various density models commonly adopted for the approximation of crust density structures. |
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