A Spaceborne Gravity Gradiometer Concept Based on Cold Atom Interferometers for Measuring Earth’s Gravity Field

Journal article (2014)

Authors

Olivier Carraz European Space Agency (ESA)

C. Siemes European Space Agency (ESA)

Luca Massotti European Space Agency (ESA)

Roger Haagmans European Space Agency (ESA)

Pierluigi Silvestrin European Space Agency (ESA)

Affiliation

External organisation

Gyroscope Gravity gradiometry Atom interferometry Gravity measurements in space

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Published Date

2014

Language

English

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Affiliation

External organisation

Abstract

We propose a concept for future space gravity missions using cold atom interferometers for measuring the diagonal elements of the gravity gradient tensor and the spacecraft angular velocity. The aim is to achieve better performance than previous space gravity missions due to a very low white noise spectral behavior and a very high common mode rejection, with the ultimate goals of determining the fine structures of the gravity field with higher accuracy than GOCE and detecting time-variable signals in the gravity field better than GRACE.