Erdmessung und Satellitengeodäsie pp 217-257 | Cite as
Globale Schwerefeldmodellierung am Beispiel von GOCE
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Zusammenfassung
Die Satellitenmissionen CHAMP, GRACE und GOCE lieferten neuartige Information über das globale Schwerefeld der Erde. In diesem Beitrag werden die wichtigsten Aspekte der Modellierung des statischen Schwerefeldes aus Satellitendaten und die dabei verwendeten statistisch-numerischen Werkzeuge exemplarisch für die GOCE-Mission diskutiert. Die neue Generation von GOCE-Modellen liefert Genauigkeiten von 2–3 cm in Geoidhöhe und 0,7 mGal in Schwereanomalien bei 100 km räumlicher Wellenlänge. Noch höhere räumliche Auflösung wird durch Kombination mit terrestrischen Schwerefeldbeobachtungen erreicht.
Schlüsselwörter
GOCE Globales Schwerefeldmodell Sphärisch-harmonische Reihenentwicklung Gravitationsgradienten AusgleichungsrechnungLiteratur
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